- Kernel - mailweb.openeuler.org

[PATCH openEuler-1.0-LTS 1/3] net: hns3: fix pf vlan filter out of work after self test
by Laibin Qiu 11 Mar '22

11 Mar '22

From: Yonglong Liu <liuyonglong(a)huawei.com> driver inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4W90Z CVE: NA ---------------------------- After a self test, the vlan filter of PF is wrongly closed, cause the vlan filter out of work. The second parameter of enable_vlan_filter() must pass true, and in enable_vlan_filter(), it will decide whether to open or keep the status of vlan filter. Fixes: 79549957e66f ("Revert: net: hns3: adds support for extended VLAN mode and 'QOS' in vlan 802.1Q protocol.") Signed-off-by: Yonglong Liu <liuyonglong(a)huawei.com> Reviewed-by: li yongxin <liyongxin1(a)huawei.com> Signed-off-by: Laibin Qiu <qiulaibin(a)huawei.com> --- drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c index ef870da7a8a4..be771c75e37e 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c @@ -395,8 +395,7 @@ static void hns3_self_test(struct net_device *ndev, #if IS_ENABLED(CONFIG_VLAN_8021Q) if (dis_vlan_filter) - h->ae_algo->ops->enable_vlan_filter(h, - ndev->flags & IFF_PROMISC); + h->ae_algo->ops->enable_vlan_filter(h, true); #endif if (if_running) -- 2.22.0

1 2

[PATCH openEuler-1.0-LTS] arm64: acpi: fix UBSAN warning
by Laibin Qiu 11 Mar '22

11 Mar '22

From: Nick Desaulniers <ndesaulniers(a)google.com> mainline inclusion from mainline-v5.8-rc1 commit a194c33f45f83068ef13bf1d16e26d4ca3ecc098 category: bugfix bugzilla: 89150 CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Will reported a UBSAN warning: UBSAN: null-ptr-deref in arch/arm64/kernel/smp.c:596:6 member access within null pointer of type 'struct acpi_madt_generic_interrupt' CPU: 0 PID: 0 Comm: swapper Not tainted 5.7.0-rc6-00124-g96bc42ff0a82 #1 Call trace: dump_backtrace+0x0/0x384 show_stack+0x28/0x38 dump_stack+0xec/0x174 handle_null_ptr_deref+0x134/0x174 __ubsan_handle_type_mismatch_v1+0x84/0xa4 acpi_parse_gic_cpu_interface+0x60/0xe8 acpi_parse_entries_array+0x288/0x498 acpi_table_parse_entries_array+0x178/0x1b4 acpi_table_parse_madt+0xa4/0x110 acpi_parse_and_init_cpus+0x38/0x100 smp_init_cpus+0x74/0x258 setup_arch+0x350/0x3ec start_kernel+0x98/0x6f4 This is from the use of the ACPI_OFFSET in arch/arm64/include/asm/acpi.h. Replace its use with offsetof from include/linux/stddef.h which should implement the same logic using __builtin_offsetof, so that UBSAN wont warn. Reported-by: Will Deacon <will(a)kernel.org> Suggested-by: Ard Biesheuvel <ardb(a)kernel.org> Signed-off-by: Nick Desaulniers <ndesaulniers(a)google.com> Reviewed-by: Jeremy Linton <jeremy.linton(a)arm.com> Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi(a)arm.com> Cc: stable(a)vger.kernel.org Link: https://lore.kernel.org/lkml/20200521100952.GA5360@willie-the-truck/ Link: https://lore.kernel.org/r/20200608203818.189423-1-ndesaulniers@google.com Signed-off-by: Will Deacon <will(a)kernel.org> Signed-off-by: linyujun <linyujun809(a)huawei.com> Reviewed-by: chenlifu <chenlifu(a)huawei.com> Reviewed-by: He Ying <heying24(a)huawei.com> Signed-off-by: Laibin Qiu <qiulaibin(a)huawei.com> --- arch/arm64/include/asm/acpi.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h index f364115ac2ef..348f12447ecd 100644 --- a/arch/arm64/include/asm/acpi.h +++ b/arch/arm64/include/asm/acpi.h @@ -15,6 +15,7 @@ #include <linux/efi.h> #include <linux/memblock.h> #include <linux/psci.h> +#include <linux/stddef.h> #include <asm/cputype.h> #include <asm/io.h> @@ -33,14 +34,14 @@ * is therefore used to delimit the MADT GICC structure minimum length * appropriately. */ -#define ACPI_MADT_GICC_MIN_LENGTH ACPI_OFFSET( \ +#define ACPI_MADT_GICC_MIN_LENGTH offsetof( \ struct acpi_madt_generic_interrupt, efficiency_class) #define BAD_MADT_GICC_ENTRY(entry, end) \ (!(entry) || (entry)->header.length < ACPI_MADT_GICC_MIN_LENGTH || \ (unsigned long)(entry) + (entry)->header.length > (end)) -#define ACPI_MADT_GICC_SPE (ACPI_OFFSET(struct acpi_madt_generic_interrupt, \ +#define ACPI_MADT_GICC_SPE (offsetof(struct acpi_madt_generic_interrupt, \ spe_interrupt) + sizeof(u16)) /* Basic configuration for ACPI */ -- 2.22.0

1 0

[PATCH openEuler-1.0-LTS] sched: Fix sleeping in atomic context at cpu_qos_write()
by Laibin Qiu 11 Mar '22

11 Mar '22

From: Zhang Qiao <zhangqiao22(a)huawei.com> hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4WOPM CVE: NA -------------------------------- cfs_bandwidth_usage_inc() need hold jump_label_mutex and might sleep, so we can not call it in atomic context. Fix this by moving cfs_bandwidth_usage_{inc,dec}() out of rcu read critical section. Fixes: f7b390cd929 ("sched: Change cgroup task scheduler policy") Signed-off-by: Zhang Qiao <zhangqiao22(a)huawei.com> Reviewed-by: Chen Hui <judy.chenhui(a)huawei.com> Reviewed-by: Wang Weiyang <wangweiyang2(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> Signed-off-by: Laibin Qiu <qiulaibin(a)huawei.com> --- kernel/sched/core.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index b36a3b4c60e9..496ce71f93a7 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -6981,13 +6981,10 @@ static int tg_change_scheduler(struct task_group *tg, void *data) struct cgroup_subsys_state *css = &tg->css; tg->qos_level = qos_level; - if (qos_level == -1) { + if (qos_level == -1) policy = SCHED_IDLE; - cfs_bandwidth_usage_inc(); - } else { + else policy = SCHED_NORMAL; - cfs_bandwidth_usage_dec(); - } param.sched_priority = 0; css_task_iter_start(css, 0, &it); @@ -7015,6 +7012,13 @@ static int cpu_qos_write(struct cgroup_subsys_state *css, if (tg->qos_level == -1 && qos_level == 0) return -EINVAL; + cpus_read_lock(); + if (qos_level == -1) + cfs_bandwidth_usage_inc(); + else + cfs_bandwidth_usage_dec(); + cpus_read_unlock(); + rcu_read_lock(); walk_tg_tree_from(tg, tg_change_scheduler, tg_nop, (void *)(&qos_level)); rcu_read_unlock(); -- 2.22.0

1 0

[PATCH openEuler-1.0-LTS 0/5] io_uring: fix request endless wait because of resources
by Laibin Qiu 11 Mar '22

11 Mar '22

bugzaila: 186136, https://gitee.com/openeuler/kernel/issues/I4RM1D Colin Ian King (1): io_uring: remove redundant initialization of variable ret Jens Axboe (3): io_uring: re-issue block requests that failed because of resources io_uring: don't double complete failed reissue request io_uring: don't re-setup vecs/iter in io_resumit_prep() is already there Pavel Begunkov (1): block: don't ignore REQ_NOWAIT for direct IO fs/block_dev.c | 5 +++ fs/io_uring.c | 100 ++++++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 104 insertions(+), 1 deletion(-) -- 2.22.0

1 5

[PATCH openEuler-5.10 01/48] Revert "blk-mq, elevator: Count requests per hctx to improve performance"
by Zheng Zengkai 11 Mar '22

11 Mar '22

From: Jan Kara <jack(a)suse.cz> mainline inclusion from mainline-5.12-rc1 commit 5ac83c644f5fb924f0b2c09102ab82fc788f8411 category: perf bugzilla: https://gitee.com/openeuler/kernel/issues/I4SW26 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ------------------------------------------------- This reverts commit b445547ec1bbd3e7bf4b1c142550942f70527d95. Since both mq-deadline and BFQ completely ignore hctx they are passed to their dispatch function and dispatch whatever request they deem fit checking whether any request for a particular hctx is queued is just pointless since we'll very likely get a request from a different hctx anyway. In the following commit we'll deal with lock contention in these IO schedulers in presence of multiple HW queues in a different way. Signed-off-by: Jan Kara <jack(a)suse.cz> Reviewed-by: Ming Lei <ming.lei(a)redhat.com> Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Conflicts: block/bfq-iosched.c Signed-off-by: Baokun Li <libaokun1(a)huawei.com> Reviewed-by: Hou Tao <houtao1(a)huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> --- block/bfq-iosched.c | 5 ----- block/blk-mq.c | 1 - block/mq-deadline.c | 6 ------ include/linux/blk-mq.h | 4 ---- 4 files changed, 16 deletions(-) diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c index 70f2aeadd21c..2247db842985 100644 --- a/block/bfq-iosched.c +++ b/block/bfq-iosched.c @@ -4651,9 +4651,6 @@ static bool bfq_has_work(struct blk_mq_hw_ctx *hctx) { struct bfq_data *bfqd = hctx->queue->elevator->elevator_data; - if (!atomic_read(&hctx->elevator_queued)) - return false; - /* * Avoiding lock: a race on bfqd->busy_queues should cause at * most a call to dispatch for nothing @@ -5570,7 +5567,6 @@ static void bfq_insert_requests(struct blk_mq_hw_ctx *hctx, rq = list_first_entry(list, struct request, queuelist); list_del_init(&rq->queuelist); bfq_insert_request(hctx, rq, at_head); - atomic_inc(&hctx->elevator_queued); } } @@ -5935,7 +5931,6 @@ static void bfq_finish_requeue_request(struct request *rq) bfq_update_inject_limit(bfqd, bfqq); bfq_completed_request(bfqq, bfqd); - atomic_dec(&rq->mq_hctx->elevator_queued); } bfq_finish_requeue_request_body(bfqq); spin_unlock_irqrestore(&bfqd->lock, flags); diff --git a/block/blk-mq.c b/block/blk-mq.c index b8cf684030dc..8428624ac42f 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -2748,7 +2748,6 @@ blk_mq_alloc_hctx(struct request_queue *q, struct blk_mq_tag_set *set, goto free_hctx; atomic_set(&hctx->nr_active, 0); - atomic_set(&hctx->elevator_queued, 0); if (node == NUMA_NO_NODE) node = set->numa_node; hctx->numa_node = node; diff --git a/block/mq-deadline.c b/block/mq-deadline.c index 43994cce1eb2..42b6e9dbe7c7 100644 --- a/block/mq-deadline.c +++ b/block/mq-deadline.c @@ -386,8 +386,6 @@ static struct request *dd_dispatch_request(struct blk_mq_hw_ctx *hctx) spin_lock(&dd->lock); rq = __dd_dispatch_request(dd); spin_unlock(&dd->lock); - if (rq) - atomic_dec(&rq->mq_hctx->elevator_queued); return rq; } @@ -539,7 +537,6 @@ static void dd_insert_requests(struct blk_mq_hw_ctx *hctx, rq = list_first_entry(list, struct request, queuelist); list_del_init(&rq->queuelist); dd_insert_request(hctx, rq, at_head); - atomic_inc(&hctx->elevator_queued); } spin_unlock(&dd->lock); } @@ -586,9 +583,6 @@ static bool dd_has_work(struct blk_mq_hw_ctx *hctx) { struct deadline_data *dd = hctx->queue->elevator->elevator_data; - if (!atomic_read(&hctx->elevator_queued)) - return false; - return !list_empty_careful(&dd->dispatch) || !list_empty_careful(&dd->fifo_list[0]) || !list_empty_careful(&dd->fifo_list[1]); diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h index 3134aaf9032a..adcbef9705ca 100644 --- a/include/linux/blk-mq.h +++ b/include/linux/blk-mq.h @@ -141,10 +141,6 @@ struct blk_mq_hw_ctx { * shared across request queues. */ atomic_t nr_active; - /** - * @elevator_queued: Number of queued requests on hctx. - */ - atomic_t elevator_queued; /** @cpuhp_online: List to store request if CPU is going to die */ struct hlist_node cpuhp_online; -- 2.20.1

2 48

[PATCH OLK-5.10] net/hinic: Fix double free issue
by Zheng Zengkai 10 Mar '22

10 Mar '22

From: Chiqijun <chiqijun(a)huawei.com> driver inclusion category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I4WWH4 CVE: NA ----------------------------------------------------------------------- When hinic_remove is executed concurrently, chip_node is double freed. Signed-off-by: Chiqijun <chiqijun(a)huawei.com> Reviewed-by: Wangxiaoyun <cloud.wangxiaoyun(a)huawei.com> Acked-by: Xie XiuQi <xiexiuqi(a)huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> --- drivers/net/ethernet/huawei/hinic/hinic_lld.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/ethernet/huawei/hinic/hinic_lld.c b/drivers/net/ethernet/huawei/hinic/hinic_lld.c index 6c960cecf101..bea0c7ef51e8 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_lld.c +++ b/drivers/net/ethernet/huawei/hinic/hinic_lld.c @@ -119,6 +119,7 @@ struct hinic_pcidev { bool nic_des_enable; struct timer_list syncfw_time_timer; + int card_id; }; #define HINIC_EVENT_PROCESS_TIMEOUT 10000 @@ -2099,6 +2100,9 @@ static void free_chip_node(struct hinic_pcidev *pci_adapter) u32 id; int err; + if (!(card_bit_map & BIT(pci_adapter->card_id))) + return; + if (list_empty(&chip_node->func_list)) { list_del(&chip_node->node); sdk_info(&pci_adapter->pcidev->dev, @@ -2701,6 +2705,9 @@ static int hinic_probe(struct pci_dev *pdev, const struct pci_device_id *id) goto alloc_chip_node_fail; } + sscanf(pci_adapter->chip_node->chip_name, HINIC_CHIP_NAME "%d", + &pci_adapter->card_id); + err = nictool_k_init(); if (err) { sdk_warn(&pdev->dev, "Failed to init nictool"); -- 2.20.1

1 0

[PATCH openEuler-1.0-LTS] sched: Fix sleeping in atomic context at cpu_qos_write()
by Yang Yingliang 10 Mar '22

10 Mar '22

From: Zhang Qiao <zhangqiao22(a)huawei.com> hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4WOPM CVE: NA -------------------------------- cfs_bandwidth_usage_inc() need hold jump_label_mutex and might sleep, so we can not call it in atomic context. Fix this by moving cfs_bandwidth_usage_{inc,dec}() out of rcu read critical section. Fixes: f7b390cd929 ("sched: Change cgroup task scheduler policy") Signed-off-by: Zhang Qiao <zhangqiao22(a)huawei.com> Reviewed-by: Chen Hui <judy.chenhui(a)huawei.com> Reviewed-by: Wang Weiyang <wangweiyang2(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- kernel/sched/core.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index b36a3b4c60e9c..496ce71f93a7a 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -6981,13 +6981,10 @@ static int tg_change_scheduler(struct task_group *tg, void *data) struct cgroup_subsys_state *css = &tg->css; tg->qos_level = qos_level; - if (qos_level == -1) { + if (qos_level == -1) policy = SCHED_IDLE; - cfs_bandwidth_usage_inc(); - } else { + else policy = SCHED_NORMAL; - cfs_bandwidth_usage_dec(); - } param.sched_priority = 0; css_task_iter_start(css, 0, &it); @@ -7015,6 +7012,13 @@ static int cpu_qos_write(struct cgroup_subsys_state *css, if (tg->qos_level == -1 && qos_level == 0) return -EINVAL; + cpus_read_lock(); + if (qos_level == -1) + cfs_bandwidth_usage_inc(); + else + cfs_bandwidth_usage_dec(); + cpus_read_unlock(); + rcu_read_lock(); walk_tg_tree_from(tg, tg_change_scheduler, tg_nop, (void *)(&qos_level)); rcu_read_unlock(); -- 2.25.1

1 0

[PATCH openEuler-5.10 01/28] xfs: fix an ABBA deadlock in xfs_rename
by Zheng Zengkai 09 Mar '22

09 Mar '22

From: "Darrick J. Wong" <darrick.wong(a)oracle.com> mainline inclusion from mainline-v5.11-rc4 commit 6da1b4b1ab36d80a3994fd4811c8381de10af604 category: bugfix bugzilla: 185867 https://gitee.com/openeuler/kernel/issues/I4KIAO Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- When overlayfs is running on top of xfs and the user unlinks a file in the overlay, overlayfs will create a whiteout inode and ask xfs to "rename" the whiteout file atop the one being unlinked. If the file being unlinked loses its one nlink, we then have to put the inode on the unlinked list. This requires us to grab the AGI buffer of the whiteout inode to take it off the unlinked list (which is where whiteouts are created) and to grab the AGI buffer of the file being deleted. If the whiteout was created in a higher numbered AG than the file being deleted, we'll lock the AGIs in the wrong order and deadlock. Therefore, grab all the AGI locks we think we'll need ahead of time, and in order of increasing AG number per the locking rules. Reported-by: wenli xie <wlxie7296(a)gmail.com> Fixes: 93597ae8dac0 ("xfs: Fix deadlock between AGI and AGF when target_ip exists in xfs_rename()") Signed-off-by: Darrick J. Wong <darrick.wong(a)oracle.com> Reviewed-by: Brian Foster <bfoster(a)redhat.com> Signed-off-by: Guo Xuenan <guoxuenan(a)huawei.com> Reviewed-by: Lihong Kou <koulihong(a)huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> --- fs/xfs/libxfs/xfs_dir2.h | 2 -- fs/xfs/libxfs/xfs_dir2_sf.c | 2 +- fs/xfs/xfs_inode.c | 42 ++++++++++++++++++++++--------------- 3 files changed, 26 insertions(+), 20 deletions(-) diff --git a/fs/xfs/libxfs/xfs_dir2.h b/fs/xfs/libxfs/xfs_dir2.h index e55378640b05..d03e6098ded9 100644 --- a/fs/xfs/libxfs/xfs_dir2.h +++ b/fs/xfs/libxfs/xfs_dir2.h @@ -47,8 +47,6 @@ extern int xfs_dir_lookup(struct xfs_trans *tp, struct xfs_inode *dp, extern int xfs_dir_removename(struct xfs_trans *tp, struct xfs_inode *dp, struct xfs_name *name, xfs_ino_t ino, xfs_extlen_t tot); -extern bool xfs_dir2_sf_replace_needblock(struct xfs_inode *dp, - xfs_ino_t inum); extern int xfs_dir_replace(struct xfs_trans *tp, struct xfs_inode *dp, struct xfs_name *name, xfs_ino_t inum, xfs_extlen_t tot); diff --git a/fs/xfs/libxfs/xfs_dir2_sf.c b/fs/xfs/libxfs/xfs_dir2_sf.c index 2463b5d73447..8c4f76bba88b 100644 --- a/fs/xfs/libxfs/xfs_dir2_sf.c +++ b/fs/xfs/libxfs/xfs_dir2_sf.c @@ -1018,7 +1018,7 @@ xfs_dir2_sf_removename( /* * Check whether the sf dir replace operation need more blocks. */ -bool +static bool xfs_dir2_sf_replace_needblock( struct xfs_inode *dp, xfs_ino_t inum) diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index af54224ebbe7..b72dd3f67ca7 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -3212,7 +3212,7 @@ xfs_rename( struct xfs_trans *tp; struct xfs_inode *wip = NULL; /* whiteout inode */ struct xfs_inode *inodes[__XFS_SORT_INODES]; - struct xfs_buf *agibp; + int i; int num_inodes = __XFS_SORT_INODES; bool new_parent = (src_dp != target_dp); bool src_is_directory = S_ISDIR(VFS_I(src_ip)->i_mode); @@ -3325,6 +3325,30 @@ xfs_rename( } } + /* + * Lock the AGI buffers we need to handle bumping the nlink of the + * whiteout inode off the unlinked list and to handle dropping the + * nlink of the target inode. Per locking order rules, do this in + * increasing AG order and before directory block allocation tries to + * grab AGFs because we grab AGIs before AGFs. + * + * The (vfs) caller must ensure that if src is a directory then + * target_ip is either null or an empty directory. + */ + for (i = 0; i < num_inodes && inodes[i] != NULL; i++) { + if (inodes[i] == wip || + (inodes[i] == target_ip && + (VFS_I(target_ip)->i_nlink == 1 || src_is_directory))) { + struct xfs_buf *bp; + xfs_agnumber_t agno; + + agno = XFS_INO_TO_AGNO(mp, inodes[i]->i_ino); + error = xfs_read_agi(mp, tp, agno, &bp); + if (error) + goto out_trans_cancel; + } + } + /* * Directory entry creation below may acquire the AGF. Remove * the whiteout from the unlinked list first to preserve correct @@ -3377,22 +3401,6 @@ xfs_rename( * In case there is already an entry with the same * name at the destination directory, remove it first. */ - - /* - * Check whether the replace operation will need to allocate - * blocks. This happens when the shortform directory lacks - * space and we have to convert it to a block format directory. - * When more blocks are necessary, we must lock the AGI first - * to preserve locking order (AGI -> AGF). - */ - if (xfs_dir2_sf_replace_needblock(target_dp, src_ip->i_ino)) { - error = xfs_read_agi(mp, tp, - XFS_INO_TO_AGNO(mp, target_ip->i_ino), - &agibp); - if (error) - goto out_trans_cancel; - } - error = xfs_dir_replace(tp, target_dp, target_name, src_ip->i_ino, spaceres); if (error) -- 2.20.1

1 27

[PATCH openEuler-1.0-LTS 1/3] block: add a switch for precise iostat accounting
by Yang Yingliang 09 Mar '22

09 Mar '22

From: Zhang Wensheng <zhangwensheng5(a)huawei.com> hulk inclusion category: bugfix bugzilla: 39265, https://gitee.com/openeuler/kernel/issues/I4WC06 CVE: NA ----------------------------------------------- When the inflight IOs are slow and no new IOs are issued, we expect iostat could manifest the IO hang problem. However after commit 9c6dea45e6f7 ("block: delete part_round_stats and switch to less precise counting"), io_tick and time_in_queue will not be updated until the end of IO, and the avgqu-sz and %util columns of iostat will be zero. To fix it, we could fallback to the implementation before commit 9c6dea45e6f7, but it may cause performance regression on NVMe device or bio-based device (due to overhead of inflight calculation), so add a switch to control whether or not to use precise iostat accounting. It can be enabled by adding "precise_iostat=1" in kernel boot cmdline. When precise accouting is enabled, io_tick and time_in_queue will be updated when accessing /proc/diskstats and /sys/block/sdX/sdXN/stat. Fixes: 9c6dea45e6f7 ("block: delete part_round_stats and switch to less precise counting") Signed-off-by: Zhang Wensheng <zhangwensheng5(a)huawei.com> Reviewed-by: Jason Yan <yanaijie(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- block/bio.c | 8 ++++++-- block/blk-core.c | 30 +++++++++++++++++++++++++++--- block/blk-merge.c | 2 ++ block/genhd.c | 7 +++++++ block/partition-generic.c | 8 ++++++++ include/linux/blkdev.h | 1 + 6 files changed, 51 insertions(+), 5 deletions(-) diff --git a/block/bio.c b/block/bio.c index d94243411ef30..b50d3b59c79b4 100644 --- a/block/bio.c +++ b/block/bio.c @@ -1706,9 +1706,13 @@ void generic_end_io_acct(struct request_queue *q, int req_op, const int sgrp = op_stat_group(req_op); int cpu = part_stat_lock(); - update_io_ticks(cpu, part, now); + if (precise_iostat) { + part_round_stats(q, cpu, part); + } else { + update_io_ticks(cpu, part, now); + part_stat_add(cpu, part, time_in_queue, duration); + } part_stat_add(cpu, part, nsecs[sgrp], jiffies_to_nsecs(duration)); - part_stat_add(cpu, part, time_in_queue, duration); part_dec_in_flight(q, part, op_is_write(req_op)); part_stat_unlock(); diff --git a/block/blk-core.c b/block/blk-core.c index 41d0b09e9a673..df733e8caa6a1 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -56,6 +56,20 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(block_unplug); DEFINE_IDA(blk_queue_ida); +bool precise_iostat; +static int __init precise_iostat_setup(char *str) +{ + bool precise; + + if (!strtobool(str, &precise)) { + precise_iostat = precise; + pr_info("precise iostat %d\n", precise_iostat); + } + + return 1; +} +__setup("precise_iostat=", precise_iostat_setup); + /* * For the allocated request tables */ @@ -1700,8 +1714,13 @@ static void part_round_stats_single(struct request_queue *q, int cpu, struct hd_struct *part, unsigned long now, unsigned int inflight) { - if (inflight) + if (inflight) { + if (precise_iostat) { + __part_stat_add(cpu, part, time_in_queue, + inflight * (now - part->stamp)); + } __part_stat_add(cpu, part, io_ticks, (now - part->stamp)); + } part->stamp = now; } @@ -2771,10 +2790,15 @@ void blk_account_io_done(struct request *req, u64 now) cpu = part_stat_lock(); part = req->part; - update_io_ticks(cpu, part, jiffies); + if (!precise_iostat) { + update_io_ticks(cpu, part, jiffies); + part_stat_add(cpu, part, time_in_queue, + nsecs_to_jiffies64(now - req->start_time_ns)); + } else { + part_round_stats(req->q, cpu, part); + } part_stat_inc(cpu, part, ios[sgrp]); part_stat_add(cpu, part, nsecs[sgrp], now - req->start_time_ns); - part_stat_add(cpu, part, time_in_queue, nsecs_to_jiffies64(now - req->start_time_ns)); part_dec_in_flight(req->q, part, rq_data_dir(req)); hd_struct_put(part); diff --git a/block/blk-merge.c b/block/blk-merge.c index 4c17c1031e34f..d2fabe1fdf326 100644 --- a/block/blk-merge.c +++ b/block/blk-merge.c @@ -669,6 +669,8 @@ static void blk_account_io_merge(struct request *req) cpu = part_stat_lock(); part = req->part; + if (precise_iostat) + part_round_stats(req->q, cpu, part); part_dec_in_flight(req->q, part, rq_data_dir(req)); hd_struct_put(part); diff --git a/block/genhd.c b/block/genhd.c index 183612cbbd6b7..e7b97fdb41731 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -1352,6 +1352,7 @@ static int diskstats_show(struct seq_file *seqf, void *v) struct hd_struct *hd; char buf[BDEVNAME_SIZE]; unsigned int inflight[2]; + int cpu; /* if (&disk_to_dev(gp)->kobj.entry == block_class.devices.next) @@ -1363,6 +1364,12 @@ static int diskstats_show(struct seq_file *seqf, void *v) disk_part_iter_init(&piter, gp, DISK_PITER_INCL_EMPTY_PART0); while ((hd = disk_part_iter_next(&piter))) { + if (precise_iostat) { + cpu = part_stat_lock(); + part_round_stats(gp->queue, cpu, hd); + part_stat_unlock(); + } + part_in_flight(gp->queue, hd, inflight); seq_printf(seqf, "%4d %7d %s " "%lu %lu %lu %u " diff --git a/block/partition-generic.c b/block/partition-generic.c index 739c0cc5fd222..c4ac7a8c77dc5 100644 --- a/block/partition-generic.c +++ b/block/partition-generic.c @@ -18,6 +18,7 @@ #include <linux/ctype.h> #include <linux/genhd.h> #include <linux/blktrace_api.h> +#include <linux/blkdev.h> #include "partitions/check.h" @@ -121,6 +122,13 @@ ssize_t part_stat_show(struct device *dev, struct hd_struct *p = dev_to_part(dev); struct request_queue *q = part_to_disk(p)->queue; unsigned int inflight[2]; + int cpu; + + if (precise_iostat) { + cpu = part_stat_lock(); + part_round_stats(q, cpu, p); + part_stat_unlock(); + } part_in_flight(q, p, inflight); return sprintf(buf, diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 28ea02865ecc1..a86659e78d987 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -28,6 +28,7 @@ #include <linux/scatterlist.h> #include <linux/blkzoned.h> +extern bool precise_iostat; struct module; struct scsi_ioctl_command; -- 2.25.1

1 2

[PATCH openEuler-5.10] Revert "efi/libstub: arm64: Relax 2M alignment again for relocatable kernels"
by Zheng Zengkai 09 Mar '22

09 Mar '22

From: Yang Yingliang <yangyingliang(a)huawei.com> hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4VSGH CVE: NA -------------------------------- This reverts commit c6d2a109d90440e9e5e927a740128a35acf9d0b5. I got the following messages when booting kernel: EFI stub: Booting Linux Kernel... EFI stub: EFI_RNG_PROTOCOL unavailable, KASLR will be disabled EFI stub: Using DTB from configuration table EFI stub: Exiting boot services and installing virtual address map... ... [ 0.000000] CPU features: kernel page table isolation forced ON by KASLR [ 0.000000] CPU features: detected: Kernel page table isolation (KPTI) [ 3.393380] KASLR disabled due to lack of seed KPTI is forced on by KASLR, but in fact KASLR is not enabled, it's because kaslr_offset() returns non-zero in kaslr_requires_kpti(). To avoid this problem, when efi kaslr is disabled, make image MIN_KIMG_ALIGN align which is used to get KASLR offset in primary_entry(), so kaslr_offset() will returns 0. Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> Reviewed-by: Xie XiuQi <xiexiuqi(a)huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> --- drivers/firmware/efi/libstub/arm64-stub.c | 28 ++++++++++++----------- 1 file changed, 15 insertions(+), 13 deletions(-) diff --git a/drivers/firmware/efi/libstub/arm64-stub.c b/drivers/firmware/efi/libstub/arm64-stub.c index c1b57dfb1277..aa796324fd62 100644 --- a/drivers/firmware/efi/libstub/arm64-stub.c +++ b/drivers/firmware/efi/libstub/arm64-stub.c @@ -79,6 +79,18 @@ static bool check_image_region(u64 base, u64 size) return ret; } +/* + * Although relocatable kernels can fix up the misalignment with respect to + * MIN_KIMG_ALIGN, the resulting virtual text addresses are subtly out of + * sync with those recorded in the vmlinux when kaslr is disabled but the + * image required relocation anyway. Therefore retain 2M alignment unless + * KASLR is in use. + */ +static u64 min_kimg_align(void) +{ + return efi_nokaslr ? MIN_KIMG_ALIGN : EFI_KIMG_ALIGN; +} + efi_status_t handle_kernel_image(unsigned long *image_addr, unsigned long *image_size, unsigned long *reserve_addr, @@ -89,16 +101,6 @@ efi_status_t handle_kernel_image(unsigned long *image_addr, unsigned long kernel_size, kernel_memsize = 0; u32 phys_seed = 0; - /* - * Although relocatable kernels can fix up the misalignment with - * respect to MIN_KIMG_ALIGN, the resulting virtual text addresses are - * subtly out of sync with those recorded in the vmlinux when kaslr is - * disabled but the image required relocation anyway. Therefore retain - * 2M alignment if KASLR was explicitly disabled, even if it was not - * going to be activated to begin with. - */ - u64 min_kimg_align = efi_nokaslr ? MIN_KIMG_ALIGN : EFI_KIMG_ALIGN; - if (IS_ENABLED(CONFIG_RANDOMIZE_BASE)) { if (!efi_nokaslr) { status = efi_get_random_bytes(sizeof(phys_seed), @@ -132,7 +134,7 @@ efi_status_t handle_kernel_image(unsigned long *image_addr, * If KASLR is enabled, and we have some randomness available, * locate the kernel at a randomized offset in physical memory. */ - status = efi_random_alloc(*reserve_size, min_kimg_align, + status = efi_random_alloc(*reserve_size, min_kimg_align(), reserve_addr, phys_seed); } else { status = EFI_OUT_OF_RESOURCES; @@ -141,7 +143,7 @@ efi_status_t handle_kernel_image(unsigned long *image_addr, if (status != EFI_SUCCESS) { if (!check_image_region((u64)_text, kernel_memsize)) { efi_err("FIRMWARE BUG: Image BSS overlaps adjacent EFI memory region\n"); - } else if (IS_ALIGNED((u64)_text, min_kimg_align)) { + } else if (IS_ALIGNED((u64)_text, min_kimg_align())) { /* * Just execute from wherever we were loaded by the * UEFI PE/COFF loader if the alignment is suitable. @@ -152,7 +154,7 @@ efi_status_t handle_kernel_image(unsigned long *image_addr, } status = efi_allocate_pages_aligned(*reserve_size, reserve_addr, - ULONG_MAX, min_kimg_align); + ULONG_MAX, min_kimg_align()); if (status != EFI_SUCCESS) { efi_err("Failed to relocate kernel\n"); -- 2.20.1

1 0

[PATCH openEuler-5.10 01/12] crypto: hisilicon/sec - fix the aead software fallback for engine
by Zheng Zengkai 09 Mar '22

09 Mar '22

From: Kai Ye <yekai13(a)huawei.com> mainline inclusion from mainline-crypto-master commit 0a2a464f863187f97e96ebc6384c052cafd4a54c category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4W4WU CVE: NA -------------------------------- Due to the subreq pointer misuse the private context memory. The aead soft crypto occasionally casues the OS panic as setting the 64K page. Here is fix it. Fixes: 6c46a3297bea ("crypto: hisilicon/sec - add fallback tfm...") Signed-off-by: Kai Ye <yekai13(a)huawei.com> Signed-off-by: Herbert Xu <herbert(a)gondor.apana.org.au> Signed-off-by: Yang Shen <shenyang39(a)huawei.com> Reviewed-by: Xiu Jianfeng <xiujianfeng(a)huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> --- drivers/crypto/hisilicon/sec2/sec_crypto.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/drivers/crypto/hisilicon/sec2/sec_crypto.c b/drivers/crypto/hisilicon/sec2/sec_crypto.c index f77be0e6cf65..bf5668ce2a80 100644 --- a/drivers/crypto/hisilicon/sec2/sec_crypto.c +++ b/drivers/crypto/hisilicon/sec2/sec_crypto.c @@ -2295,9 +2295,10 @@ static int sec_aead_soft_crypto(struct sec_ctx *ctx, struct aead_request *aead_req, bool encrypt) { - struct aead_request *subreq = aead_request_ctx(aead_req); struct sec_auth_ctx *a_ctx = &ctx->a_ctx; struct device *dev = ctx->dev; + struct aead_request *subreq; + int ret; /* Kunpeng920 aead mode not support input 0 size */ if (!a_ctx->fallback_aead_tfm) { @@ -2305,6 +2306,10 @@ static int sec_aead_soft_crypto(struct sec_ctx *ctx, return -EINVAL; } + subreq = aead_request_alloc(a_ctx->fallback_aead_tfm, GFP_KERNEL); + if (!subreq) + return -ENOMEM; + aead_request_set_tfm(subreq, a_ctx->fallback_aead_tfm); aead_request_set_callback(subreq, aead_req->base.flags, aead_req->base.complete, aead_req->base.data); @@ -2312,8 +2317,13 @@ static int sec_aead_soft_crypto(struct sec_ctx *ctx, aead_req->cryptlen, aead_req->iv); aead_request_set_ad(subreq, aead_req->assoclen); - return encrypt ? crypto_aead_encrypt(subreq) : - crypto_aead_decrypt(subreq); + if (encrypt) + ret = crypto_aead_encrypt(subreq); + else + ret = crypto_aead_decrypt(subreq); + aead_request_free(subreq); + + return ret; } static int sec_aead_crypto(struct aead_request *a_req, bool encrypt) -- 2.20.1

1 11

[PATCH openEuler-1.0-LTS 1/2] bfq: fix use-after-free in bfq_dispatch_request
by Yang Yingliang 08 Mar '22

08 Mar '22

From: Zhang Wensheng <zhangwensheng5(a)huawei.com> hulk inclusion category: bugfix bugzilla: 185755, https://gitee.com/openeuler/kernel/issues/I4WLYZ CVE:NA Reference: https://lore.kernel.org/lkml/8b6032c7-c971-d79b-4a41-271d3cc0efdd@huawei.co… -------------------------------- KASAN reports a use-after-free report when doing normal scsi-mq test [69832.239032] ================================================================== [69832.241810] BUG: KASAN: use-after-free in bfq_dispatch_request+0x1045/0x44b0 [69832.243267] Read of size 8 at addr ffff88802622ba88 by task kworker/3:1H/155 [69832.244656] [69832.245007] CPU: 3 PID: 155 Comm: kworker/3:1H Not tainted 5.10.0-10295-g576c6382529e #8 [69832.246626] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [69832.249069] Workqueue: kblockd blk_mq_run_work_fn [69832.250022] Call Trace: [69832.250541] dump_stack+0x9b/0xce [69832.251232] ? bfq_dispatch_request+0x1045/0x44b0 [69832.252243] print_address_description.constprop.6+0x3e/0x60 [69832.253381] ? __cpuidle_text_end+0x5/0x5 [69832.254211] ? vprintk_func+0x6b/0x120 [69832.254994] ? bfq_dispatch_request+0x1045/0x44b0 [69832.255952] ? bfq_dispatch_request+0x1045/0x44b0 [69832.256914] kasan_report.cold.9+0x22/0x3a [69832.257753] ? bfq_dispatch_request+0x1045/0x44b0 [69832.258755] check_memory_region+0x1c1/0x1e0 [69832.260248] bfq_dispatch_request+0x1045/0x44b0 [69832.261181] ? bfq_bfqq_expire+0x2440/0x2440 [69832.262032] ? blk_mq_delay_run_hw_queues+0xf9/0x170 [69832.263022] __blk_mq_do_dispatch_sched+0x52f/0x830 [69832.264011] ? blk_mq_sched_request_inserted+0x100/0x100 [69832.265101] __blk_mq_sched_dispatch_requests+0x398/0x4f0 [69832.266206] ? blk_mq_do_dispatch_ctx+0x570/0x570 [69832.267147] ? __switch_to+0x5f4/0xee0 [69832.267898] blk_mq_sched_dispatch_requests+0xdf/0x140 [69832.268946] __blk_mq_run_hw_queue+0xc0/0x270 [69832.269840] blk_mq_run_work_fn+0x51/0x60 [69832.278170] process_one_work+0x6d4/0xfe0 [69832.278984] worker_thread+0x91/0xc80 [69832.279726] ? __kthread_parkme+0xb0/0x110 [69832.280554] ? process_one_work+0xfe0/0xfe0 [69832.281414] kthread+0x32d/0x3f0 [69832.282082] ? kthread_park+0x170/0x170 [69832.282849] ret_from_fork+0x1f/0x30 [69832.283573] [69832.283886] Allocated by task 7725: [69832.284599] kasan_save_stack+0x19/0x40 [69832.285385] __kasan_kmalloc.constprop.2+0xc1/0xd0 [69832.286350] kmem_cache_alloc_node+0x13f/0x460 [69832.287237] bfq_get_queue+0x3d4/0x1140 [69832.287993] bfq_get_bfqq_handle_split+0x103/0x510 [69832.289015] bfq_init_rq+0x337/0x2d50 [69832.289749] bfq_insert_requests+0x304/0x4e10 [69832.290634] blk_mq_sched_insert_requests+0x13e/0x390 [69832.291629] blk_mq_flush_plug_list+0x4b4/0x760 [69832.292538] blk_flush_plug_list+0x2c5/0x480 [69832.293392] io_schedule_prepare+0xb2/0xd0 [69832.294209] io_schedule_timeout+0x13/0x80 [69832.295014] wait_for_common_io.constprop.1+0x13c/0x270 [69832.296137] submit_bio_wait+0x103/0x1a0 [69832.296932] blkdev_issue_discard+0xe6/0x160 [69832.297794] blk_ioctl_discard+0x219/0x290 [69832.298614] blkdev_common_ioctl+0x50a/0x1750 [69832.304715] blkdev_ioctl+0x470/0x600 [69832.305474] block_ioctl+0xde/0x120 [69832.306232] vfs_ioctl+0x6c/0xc0 [69832.306877] __se_sys_ioctl+0x90/0xa0 [69832.307629] do_syscall_64+0x2d/0x40 [69832.308362] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [69832.309382] [69832.309701] Freed by task 155: [69832.310328] kasan_save_stack+0x19/0x40 [69832.311121] kasan_set_track+0x1c/0x30 [69832.311868] kasan_set_free_info+0x1b/0x30 [69832.312699] __kasan_slab_free+0x111/0x160 [69832.313524] kmem_cache_free+0x94/0x460 [69832.314367] bfq_put_queue+0x582/0x940 [69832.315112] __bfq_bfqd_reset_in_service+0x166/0x1d0 [69832.317275] bfq_bfqq_expire+0xb27/0x2440 [69832.318084] bfq_dispatch_request+0x697/0x44b0 [69832.318991] __blk_mq_do_dispatch_sched+0x52f/0x830 [69832.319984] __blk_mq_sched_dispatch_requests+0x398/0x4f0 [69832.321087] blk_mq_sched_dispatch_requests+0xdf/0x140 [69832.322225] __blk_mq_run_hw_queue+0xc0/0x270 [69832.323114] blk_mq_run_work_fn+0x51/0x60 [69832.323942] process_one_work+0x6d4/0xfe0 [69832.324772] worker_thread+0x91/0xc80 [69832.325518] kthread+0x32d/0x3f0 [69832.326205] ret_from_fork+0x1f/0x30 [69832.326932] [69832.338297] The buggy address belongs to the object at ffff88802622b968 [69832.338297] which belongs to the cache bfq_queue of size 512 [69832.340766] The buggy address is located 288 bytes inside of [69832.340766] 512-byte region [ffff88802622b968, ffff88802622bb68) [69832.343091] The buggy address belongs to the page: [69832.344097] page:ffffea0000988a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88802622a528 pfn:0x26228 [69832.346214] head:ffffea0000988a00 order:2 compound_mapcount:0 compound_pincount:0 [69832.347719] flags: 0x1fffff80010200(slab|head) [69832.348625] raw: 001fffff80010200 ffffea0000dbac08 ffff888017a57650 ffff8880179fe840 [69832.354972] raw: ffff88802622a528 0000000000120008 00000001ffffffff 0000000000000000 [69832.356547] page dumped because: kasan: bad access detected [69832.357652] [69832.357970] Memory state around the buggy address: [69832.358926] ffff88802622b980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [69832.360358] ffff88802622ba00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [69832.361810] >ffff88802622ba80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [69832.363273] ^ [69832.363975] ffff88802622bb00: fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc [69832.375960] ffff88802622bb80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [69832.377405] ================================================================== In bfq_dispatch_requestfunction, it may have function call: bfq_dispatch_request __bfq_dispatch_request bfq_select_queue bfq_bfqq_expire __bfq_bfqd_reset_in_service bfq_put_queue kmem_cache_free In this function call, in_serv_queue has beed expired and meet the conditions to free. In the function bfq_dispatch_request, the address of in_serv_queue pointing to has been released. For getting the value of idle_timer_disabled, it will get flags value from the address which in_serv_queue pointing to, then the problem of use-after-free happens; Fix the problem by check in_serv_queue == bfqd->in_service_queue, to get the value of idle_timer_disabled if in_serve_queue is equel to bfqd->in_service_queue. If the space of in_serv_queue pointing has been released, this judge will aviod use-after-free problem. And if in_serv_queue may be expired or finished, the idle_timer_disabled will be false which would not give effects to bfq_update_dispatch_stats. Reported-by: Hulk Robot <hulkci(a)huawei.com> Signed-off-by: Zhang Wensheng <zhangwensheng5(a)huawei.com> Reviewed-by: Jens Axboe <axboe(a)kernel.dk> Reviewed-by: Laibin Qiu <qiulaibin(a)huawei.com> Reviewed-by: Jason Yan <yanaijie(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- block/bfq-iosched.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c index fe4255698d810..8f4275d1b11a3 100644 --- a/block/bfq-iosched.c +++ b/block/bfq-iosched.c @@ -4140,7 +4140,7 @@ static struct request *bfq_dispatch_request(struct blk_mq_hw_ctx *hctx) struct bfq_data *bfqd = hctx->queue->elevator->elevator_data; struct request *rq; struct bfq_queue *in_serv_queue; - bool waiting_rq, idle_timer_disabled; + bool waiting_rq, idle_timer_disabled = false; spin_lock_irq(&bfqd->lock); @@ -4148,14 +4148,15 @@ static struct request *bfq_dispatch_request(struct blk_mq_hw_ctx *hctx) waiting_rq = in_serv_queue && bfq_bfqq_wait_request(in_serv_queue); rq = __bfq_dispatch_request(hctx); - - idle_timer_disabled = - waiting_rq && !bfq_bfqq_wait_request(in_serv_queue); + if (in_serv_queue == bfqd->in_service_queue) { + idle_timer_disabled = + waiting_rq && !bfq_bfqq_wait_request(in_serv_queue); + } spin_unlock_irq(&bfqd->lock); - - bfq_update_dispatch_stats(hctx->queue, rq, in_serv_queue, - idle_timer_disabled); + bfq_update_dispatch_stats(hctx->queue, rq, + idle_timer_disabled ? in_serv_queue : NULL, + idle_timer_disabled); return rq; } -- 2.25.1

1 1

[PATCH OLK-5.10] lib/iov_iter: initialize "flags" in new pipe_buffer
by Zheng Zengkai 08 Mar '22

08 Mar '22

From: Zhihao Cheng <chengzhihao1(a)huawei.com> From: Max Kellermann <max.kellermann(a)ionos.com> mainline inclusion from mainline-v5.17-rc6 commit 9d2231c5d74e13b2a0546fee6737ee4446017903 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4WUKP?from=project-issue CVE: CVE-2022-0847 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/l… -------------------------------- The functions copy_page_to_iter_pipe() and push_pipe() can both allocate a new pipe_buffer, but the "flags" member initializer is missing. Fixes: 241699cd72a8 ("new iov_iter flavour: pipe-backed") To: Alexander Viro <viro(a)zeniv.linux.org.uk> To: linux-fsdevel(a)vger.kernel.org To: linux-kernel(a)vger.kernel.org Cc: stable(a)vger.kernel.org Signed-off-by: Max Kellermann <max.kellermann(a)ionos.com> Signed-off-by: Al Viro <viro(a)zeniv.linux.org.uk> Signed-off-by: Zhihao Cheng <chengzhihao1(a)huawei.com> Reviewed-by: Zhang Yi <yi.zhang(a)huawei.com> --- lib/iov_iter.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/lib/iov_iter.c b/lib/iov_iter.c index b364231b5fc8..1b0a349fbcd9 100644 --- a/lib/iov_iter.c +++ b/lib/iov_iter.c @@ -407,6 +407,7 @@ static size_t copy_page_to_iter_pipe(struct page *page, size_t offset, size_t by return 0; buf->ops = &page_cache_pipe_buf_ops; + buf->flags = 0; get_page(page); buf->page = page; buf->offset = offset; @@ -543,6 +544,7 @@ static size_t push_pipe(struct iov_iter *i, size_t size, break; buf->ops = &default_pipe_buf_ops; + buf->flags = 0; buf->page = page; buf->offset = 0; buf->len = min_t(ssize_t, left, PAGE_SIZE);

2 1

[PATCH openEuler-5.10] lib/iov_iter: initialize "flags" in new pipe_buffer
by Zheng Zengkai 08 Mar '22

08 Mar '22

From: Max Kellermann <max.kellermann(a)ionos.com> mainline inclusion from mainline-v5.17-rc6 commit 9d2231c5d74e13b2a0546fee6737ee4446017903 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4WUKP?from=project-issue CVE: CVE-2022-0847 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/l… -------------------------------- The functions copy_page_to_iter_pipe() and push_pipe() can both allocate a new pipe_buffer, but the "flags" member initializer is missing. Fixes: 241699cd72a8 ("new iov_iter flavour: pipe-backed") To: Alexander Viro <viro(a)zeniv.linux.org.uk> To: linux-fsdevel(a)vger.kernel.org To: linux-kernel(a)vger.kernel.org Cc: stable(a)vger.kernel.org Signed-off-by: Max Kellermann <max.kellermann(a)ionos.com> Signed-off-by: Al Viro <viro(a)zeniv.linux.org.uk> Signed-off-by: Zhihao Cheng <chengzhihao1(a)huawei.com> Reviewed-by: Zhang Yi <yi.zhang(a)huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> --- lib/iov_iter.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/lib/iov_iter.c b/lib/iov_iter.c index b364231b5fc8..1b0a349fbcd9 100644 --- a/lib/iov_iter.c +++ b/lib/iov_iter.c @@ -407,6 +407,7 @@ static size_t copy_page_to_iter_pipe(struct page *page, size_t offset, size_t by return 0; buf->ops = &page_cache_pipe_buf_ops; + buf->flags = 0; get_page(page); buf->page = page; buf->offset = offset; @@ -543,6 +544,7 @@ static size_t push_pipe(struct iov_iter *i, size_t size, break; buf->ops = &default_pipe_buf_ops; + buf->flags = 0; buf->page = page; buf->offset = 0; buf->len = min_t(ssize_t, left, PAGE_SIZE); -- 2.20.1

1 0

[PATCH OLK-5.10 01/12] block: cleanup del_gendisk a bit
by Zheng Zengkai 08 Mar '22

08 Mar '22

From: Yu Kuai <yukuai3(a)huawei.com> From: Christoph Hellwig <hch(a)lst.de> mainline inclusion from mainline-v5.11-rc1 commit 6b3ba9762f9f9f651873af34481ca20e4a6791e7 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4SA9G --------------------------- Merge three hidden gendisk checks into one. Signed-off-by: Christoph Hellwig <hch(a)lst.de> Reviewed-by: Hannes Reinecke <hare(a)suse.de> Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Signed-off-by: Yu Kuai <yukuai3(a)huawei.com> --- block/genhd.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/block/genhd.c b/block/genhd.c index 6566eacc807d..2a61dcd98d73 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -904,6 +904,9 @@ void del_gendisk(struct gendisk *disk) might_sleep(); + if (WARN_ON_ONCE(!disk->queue)) + return; + blk_integrity_del(disk); disk_del_events(disk); @@ -926,20 +929,18 @@ void del_gendisk(struct gendisk *disk) disk->flags &= ~GENHD_FL_UP; up_write(&disk->lookup_sem); - if (!(disk->flags & GENHD_FL_HIDDEN)) + if (!(disk->flags & GENHD_FL_HIDDEN)) { sysfs_remove_link(&disk_to_dev(disk)->kobj, "bdi"); - if (disk->queue) { + /* * Unregister bdi before releasing device numbers (as they can * get reused and we'd get clashes in sysfs). */ - if (!(disk->flags & GENHD_FL_HIDDEN)) - bdi_unregister(disk->queue->backing_dev_info); - blk_unregister_queue(disk); - } else { - WARN_ON(1); + bdi_unregister(disk->queue->backing_dev_info); } + blk_unregister_queue(disk); + if (!(disk->flags & GENHD_FL_HIDDEN)) blk_unregister_region(disk_devt(disk), disk->minors); /* From patchwork Wed Jan 26 08:35:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai <yukuai3(a)huawei.com> X-Patchwork-Id: 152657 Return-Path: <yukuai3(a)huawei.com> Received: from dggems704-chm.china.huawei.com (10.3.19.181) by dggems702-chm.china.huawei.com (10.3.19.179) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21 via Mailbox Transport; Wed, 26 Jan 2022 16:24:48 +0800 Received: from kwepemm600009.china.huawei.com (7.193.23.164) by dggems704-chm.china.huawei.com (10.3.19.181) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:47 +0800 Received: from huawei.com (10.175.127.227) by kwepemm600009.china.huawei.com (7.193.23.164) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:46 +0800 From: Yu Kuai <yukuai3(a)huawei.com> To: <zhengzengkai(a)huawei.com>, <xiexiuqi(a)huawei.com>, <patchwork(a)huawei.com> CC: <yukuai3(a)huawei.com>, <yi.zhang(a)huawei.com>, <houtao1(a)huawei.com>, <chenxiaosong2(a)huawei.com>, <chengzhihao1(a)huawei.com>, <libaokun1(a)huawei.com>, <luomeng12(a)huawei.com>, <yanaijie(a)huawei.com>, <yangerkun(a)huawei.com>, <yebin10(a)huawei.com>, <yuyufen(a)huawei.com>, <zhangxiaoxu5(a)huawei.com>, <zhengbin13(a)huawei.com>, <koulihong(a)huawei.com>, <qiulaibin(a)huawei.com>, <zhengliang6(a)huawei.com> Subject: [PATCH OLK-5.10 02/12] block: fold register_disk into device_add_disk Date: Wed, 26 Jan 2022 16:35:24 +0800 Message-ID: <20220126083534.4016012-3-yukuai3(a)huawei.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220126083534.4016012-1-yukuai3(a)huawei.com> References: <20220126083534.4016012-1-yukuai3(a)huawei.com> Content-Type: text/plain X-MS-Exchange-Organization-Network-Message-Id: 3218969e-1bda-4724-aaa8-08d9e0a55088 X-MS-Exchange-Organization-AuthSource: kwepemm600009.china.huawei.com X-MS-Exchange-Organization-AuthAs: Internal X-MS-Exchange-Organization-AuthMechanism: 07 X-Originating-IP: [10.175.127.227] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemm600009.china.huawei.com (7.193.23.164) X-MS-Exchange-Transport-EndToEndLatency: 00:00:01.8705511 X-MS-Exchange-Processed-By-BccFoldering: 15.01.2308.021 MIME-Version: 1.0 From: Christoph Hellwig <hch(a)lst.de> mainline inclusion from mainline-v5.15-rc1 commit 52b85909f85d06efa69aaf4210e72467f1f58d2b category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4SA9G --------------------------- There is no real reason these should be separate. Also simplify the groups assignment a bit. Signed-off-by: Christoph Hellwig <hch(a)lst.de> Signed-off-by: Yu Kuai <yukuai3(a)huawei.com> --- block/genhd.c | 129 +++++++++++++++++++++++--------------------------- 1 file changed, 58 insertions(+), 71 deletions(-) diff --git a/block/genhd.c b/block/genhd.c index 2a61dcd98d73..c0e1639131d9 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -700,69 +700,6 @@ static void disk_scan_partitions(struct gendisk *disk) blkdev_put(bdev, FMODE_READ); } -static void register_disk(struct device *parent, struct gendisk *disk, - const struct attribute_group **groups) -{ - struct device *ddev = disk_to_dev(disk); - struct disk_part_iter piter; - struct hd_struct *part; - int err; - - ddev->parent = parent; - - dev_set_name(ddev, "%s", disk->disk_name); - - /* delay uevents, until we scanned partition table */ - dev_set_uevent_suppress(ddev, 1); - - if (groups) { - WARN_ON(ddev->groups); - ddev->groups = groups; - } - if (device_add(ddev)) - return; - if (!sysfs_deprecated) { - err = sysfs_create_link(block_depr, &ddev->kobj, - kobject_name(&ddev->kobj)); - if (err) { - device_del(ddev); - return; - } - } - - /* - * avoid probable deadlock caused by allocating memory with - * GFP_KERNEL in runtime_resume callback of its all ancestor - * devices - */ - pm_runtime_set_memalloc_noio(ddev, true); - - disk->part0.holder_dir = kobject_create_and_add("holders", &ddev->kobj); - disk->slave_dir = kobject_create_and_add("slaves", &ddev->kobj); - - if (disk->flags & GENHD_FL_HIDDEN) - return; - - disk_scan_partitions(disk); - - /* announce disk after possible partitions are created */ - dev_set_uevent_suppress(ddev, 0); - kobject_uevent(&ddev->kobj, KOBJ_ADD); - - /* announce possible partitions */ - disk_part_iter_init(&piter, disk, 0); - while ((part = disk_part_iter_next(&piter))) - kobject_uevent(&part_to_dev(part)->kobj, KOBJ_ADD); - disk_part_iter_exit(&piter); - - if (disk->queue->backing_dev_info->dev) { - err = sysfs_create_link(&ddev->kobj, - &disk->queue->backing_dev_info->dev->kobj, - "bdi"); - WARN_ON(err); - } -} - /** * __device_add_disk - add disk information to kernel list * @parent: parent device for the disk @@ -779,8 +716,11 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, const struct attribute_group **groups, bool register_queue) { + struct device *ddev = disk_to_dev(disk); + struct disk_part_iter piter; + struct hd_struct *part; dev_t devt; - int retval; + int ret; /* * The disk queue should now be all set with enough information about @@ -801,8 +741,8 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, disk->flags |= GENHD_FL_UP; - retval = blk_alloc_devt(&disk->part0, &devt); - if (retval) { + ret = blk_alloc_devt(&disk->part0, &devt); + if (ret) { WARN_ON(1); return; } @@ -820,18 +760,65 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, disk->flags |= GENHD_FL_NO_PART_SCAN; } else { struct backing_dev_info *bdi = disk->queue->backing_dev_info; - struct device *dev = disk_to_dev(disk); - int ret; /* Register BDI before referencing it from bdev */ - dev->devt = devt; + ddev->devt = devt; ret = bdi_register(bdi, "%u:%u", MAJOR(devt), MINOR(devt)); WARN_ON(ret); - bdi_set_owner(bdi, dev); + bdi_set_owner(bdi, ddev); blk_register_region(disk_devt(disk), disk->minors, NULL, exact_match, exact_lock, disk); } - register_disk(parent, disk, groups); + + /* delay uevents, until we scanned partition table */ + dev_set_uevent_suppress(ddev, 1); + + ddev->parent = parent; + ddev->groups = groups; + dev_set_name(ddev, "%s", disk->disk_name); + + if (device_add(ddev)) + return; + if (!sysfs_deprecated) { + ret = sysfs_create_link(block_depr, &ddev->kobj, + kobject_name(&ddev->kobj)); + if (ret) { + device_del(ddev); + return; + } + } + + /* + * avoid probable deadlock caused by allocating memory with + * GFP_KERNEL in runtime_resume callback of its all ancestor + * devices + */ + pm_runtime_set_memalloc_noio(ddev, true); + + disk->part0.holder_dir = kobject_create_and_add("holders", &ddev->kobj); + disk->slave_dir = kobject_create_and_add("slaves", &ddev->kobj); + + if (!(disk->flags & GENHD_FL_HIDDEN)) { + disk_scan_partitions(disk); + + /* announce disk after possible partitions are created */ + dev_set_uevent_suppress(ddev, 0); + kobject_uevent(&ddev->kobj, KOBJ_ADD); + + /* announce possible partitions */ + disk_part_iter_init(&piter, disk, 0); + while ((part = disk_part_iter_next(&piter))) + kobject_uevent(&part_to_dev(part)->kobj, KOBJ_ADD); + disk_part_iter_exit(&piter); + + if (disk->queue->backing_dev_info->dev) { + ret = sysfs_create_link(&ddev->kobj, + &disk->queue->backing_dev_info->dev->kobj, + "bdi"); + WARN_ON(ret); + } + } + if (register_queue) blk_register_queue(disk); From patchwork Wed Jan 26 08:35:25 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai <yukuai3(a)huawei.com> X-Patchwork-Id: 152658 Return-Path: <yukuai3(a)huawei.com> Received: from dggems706-chm.china.huawei.com (10.3.19.183) by dggems702-chm.china.huawei.com (10.3.19.179) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21 via Mailbox Transport; Wed, 26 Jan 2022 16:24:49 +0800 Received: from kwepemm600009.china.huawei.com (7.193.23.164) by dggems706-chm.china.huawei.com (10.3.19.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:49 +0800 Received: from huawei.com (10.175.127.227) by kwepemm600009.china.huawei.com (7.193.23.164) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:47 +0800 From: Yu Kuai <yukuai3(a)huawei.com> To: <zhengzengkai(a)huawei.com>, <xiexiuqi(a)huawei.com>, <patchwork(a)huawei.com> CC: <yukuai3(a)huawei.com>, <yi.zhang(a)huawei.com>, <houtao1(a)huawei.com>, <chenxiaosong2(a)huawei.com>, <chengzhihao1(a)huawei.com>, <libaokun1(a)huawei.com>, <luomeng12(a)huawei.com>, <yanaijie(a)huawei.com>, <yangerkun(a)huawei.com>, <yebin10(a)huawei.com>, <yuyufen(a)huawei.com>, <zhangxiaoxu5(a)huawei.com>, <zhengbin13(a)huawei.com>, <koulihong(a)huawei.com>, <qiulaibin(a)huawei.com>, <zhengliang6(a)huawei.com> Subject: [PATCH OLK-5.10 03/12] block: set GENHD_FL_UP last in __device_add_disk() Date: Wed, 26 Jan 2022 16:35:25 +0800 Message-ID: <20220126083534.4016012-4-yukuai3(a)huawei.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220126083534.4016012-1-yukuai3(a)huawei.com> References: <20220126083534.4016012-1-yukuai3(a)huawei.com> Content-Type: text/plain X-MS-Exchange-Organization-Network-Message-Id: d49516fb-3c05-44d0-73f3-08d9e0a55156 X-MS-Exchange-Organization-AuthSource: kwepemm600009.china.huawei.com X-MS-Exchange-Organization-AuthAs: Internal X-MS-Exchange-Organization-AuthMechanism: 07 X-Originating-IP: [10.175.127.227] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemm600009.china.huawei.com (7.193.23.164) X-MS-Exchange-Transport-EndToEndLatency: 00:00:01.7552871 X-MS-Exchange-Processed-By-BccFoldering: 15.01.2308.021 MIME-Version: 1.0 hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4SA9G --------------------------- The flag will be checked before operations on the block device, thus don't set the flag is some errors occurred. Signed-off-by: Yu Kuai <yukuai3(a)huawei.com> --- block/genhd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/block/genhd.c b/block/genhd.c index c0e1639131d9..59bdb43ccf17 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -739,8 +739,6 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, WARN_ON(!disk->minors && !(disk->flags & (GENHD_FL_EXT_DEVT | GENHD_FL_HIDDEN))); - disk->flags |= GENHD_FL_UP; - ret = blk_alloc_devt(&disk->part0, &devt); if (ret) { WARN_ON(1); @@ -830,6 +828,8 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, disk_add_events(disk); blk_integrity_add(disk); + + disk->flags |= GENHD_FL_UP; } void device_add_disk(struct device *parent, struct gendisk *disk, From patchwork Wed Jan 26 08:35:26 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai <yukuai3(a)huawei.com> X-Patchwork-Id: 152659 Return-Path: <yukuai3(a)huawei.com> Received: from dggems705-chm.china.huawei.com (10.3.19.182) by dggems702-chm.china.huawei.com (10.3.19.179) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21 via Mailbox Transport; Wed, 26 Jan 2022 16:24:50 +0800 Received: from kwepemm600009.china.huawei.com (7.193.23.164) by dggems705-chm.china.huawei.com (10.3.19.182) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:50 +0800 Received: from huawei.com (10.175.127.227) by kwepemm600009.china.huawei.com (7.193.23.164) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:49 +0800 From: Yu Kuai <yukuai3(a)huawei.com> To: <zhengzengkai(a)huawei.com>, <xiexiuqi(a)huawei.com>, <patchwork(a)huawei.com> CC: <yukuai3(a)huawei.com>, <yi.zhang(a)huawei.com>, <houtao1(a)huawei.com>, <chenxiaosong2(a)huawei.com>, <chengzhihao1(a)huawei.com>, <libaokun1(a)huawei.com>, <luomeng12(a)huawei.com>, <yanaijie(a)huawei.com>, <yangerkun(a)huawei.com>, <yebin10(a)huawei.com>, <yuyufen(a)huawei.com>, <zhangxiaoxu5(a)huawei.com>, <zhengbin13(a)huawei.com>, <koulihong(a)huawei.com>, <qiulaibin(a)huawei.com>, <zhengliang6(a)huawei.com> Subject: [PATCH OLK-5.10 04/12] block: call bdi_register() later in __device_add_disk() Date: Wed, 26 Jan 2022 16:35:26 +0800 Message-ID: <20220126083534.4016012-5-yukuai3(a)huawei.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220126083534.4016012-1-yukuai3(a)huawei.com> References: <20220126083534.4016012-1-yukuai3(a)huawei.com> Content-Type: text/plain X-MS-Exchange-Organization-Network-Message-Id: 1a9bddc2-3045-4a62-422a-08d9e0a55221 X-MS-Exchange-Organization-AuthSource: kwepemm600009.china.huawei.com X-MS-Exchange-Organization-AuthAs: Internal X-MS-Exchange-Organization-AuthMechanism: 07 X-Originating-IP: [10.175.127.227] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemm600009.china.huawei.com (7.193.23.164) X-MS-Exchange-Transport-EndToEndLatency: 00:00:01.8140598 X-MS-Exchange-Processed-By-BccFoldering: 15.01.2308.021 MIME-Version: 1.0 hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4SA9G --------------------------- This will simplify error handling going forward. Conflict: "ddev->devt = devt" must be set before add_disk(). Signed-off-by: Yu Kuai <yukuai3(a)huawei.com> --- block/genhd.c | 35 +++++++++++++++++------------------ 1 file changed, 17 insertions(+), 18 deletions(-) diff --git a/block/genhd.c b/block/genhd.c index 59bdb43ccf17..b0a6214fdbe1 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -749,24 +749,8 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, disk_alloc_events(disk); - if (disk->flags & GENHD_FL_HIDDEN) { - /* - * Don't let hidden disks show up in /proc/partitions, - * and don't bother scanning for partitions either. - */ - disk->flags |= GENHD_FL_SUPPRESS_PARTITION_INFO; - disk->flags |= GENHD_FL_NO_PART_SCAN; - } else { - struct backing_dev_info *bdi = disk->queue->backing_dev_info; - - /* Register BDI before referencing it from bdev */ + if (!(disk->flags & GENHD_FL_HIDDEN)) ddev->devt = devt; - ret = bdi_register(bdi, "%u:%u", MAJOR(devt), MINOR(devt)); - WARN_ON(ret); - bdi_set_owner(bdi, ddev); - blk_register_region(disk_devt(disk), disk->minors, NULL, - exact_match, exact_lock, disk); - } /* delay uevents, until we scanned partition table */ dev_set_uevent_suppress(ddev, 1); @@ -796,7 +780,22 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, disk->part0.holder_dir = kobject_create_and_add("holders", &ddev->kobj); disk->slave_dir = kobject_create_and_add("slaves", &ddev->kobj); - if (!(disk->flags & GENHD_FL_HIDDEN)) { + if (disk->flags & GENHD_FL_HIDDEN) { + /* + * Don't let hidden disks show up in /proc/partitions, + * and don't bother scanning for partitions either. + */ + disk->flags |= GENHD_FL_SUPPRESS_PARTITION_INFO; + disk->flags |= GENHD_FL_NO_PART_SCAN; + } else { + struct backing_dev_info *bdi = disk->queue->backing_dev_info; + + ret = bdi_register(bdi, "%u:%u", MAJOR(devt), MINOR(devt)); + WARN_ON(ret); + bdi_set_owner(bdi, ddev); + blk_register_region(disk_devt(disk), disk->minors, NULL, + exact_match, exact_lock, disk); + disk_scan_partitions(disk); /* announce disk after possible partitions are created */ From patchwork Wed Jan 26 08:35:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai <yukuai3(a)huawei.com> X-Patchwork-Id: 152660 Return-Path: <yukuai3(a)huawei.com> Received: from dggems701-chm.china.huawei.com (10.3.19.178) by dggems702-chm.china.huawei.com (10.3.19.179) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21 via Mailbox Transport; Wed, 26 Jan 2022 16:24:52 +0800 Received: from kwepemm600009.china.huawei.com (7.193.23.164) by dggems701-chm.china.huawei.com (10.3.19.178) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:51 +0800 Received: from huawei.com (10.175.127.227) by kwepemm600009.china.huawei.com (7.193.23.164) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:50 +0800 From: Yu Kuai <yukuai3(a)huawei.com> To: <zhengzengkai(a)huawei.com>, <xiexiuqi(a)huawei.com>, <patchwork(a)huawei.com> CC: <yukuai3(a)huawei.com>, <yi.zhang(a)huawei.com>, <houtao1(a)huawei.com>, <chenxiaosong2(a)huawei.com>, <chengzhihao1(a)huawei.com>, <libaokun1(a)huawei.com>, <luomeng12(a)huawei.com>, <yanaijie(a)huawei.com>, <yangerkun(a)huawei.com>, <yebin10(a)huawei.com>, <yuyufen(a)huawei.com>, <zhangxiaoxu5(a)huawei.com>, <zhengbin13(a)huawei.com>, <koulihong(a)huawei.com>, <qiulaibin(a)huawei.com>, <zhengliang6(a)huawei.com> Subject: [PATCH OLK-5.10 05/12] block: create the bdi link earlier in device_add_disk Date: Wed, 26 Jan 2022 16:35:27 +0800 Message-ID: <20220126083534.4016012-6-yukuai3(a)huawei.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220126083534.4016012-1-yukuai3(a)huawei.com> References: <20220126083534.4016012-1-yukuai3(a)huawei.com> Content-Type: text/plain X-MS-Exchange-Organization-Network-Message-Id: fad6c294-ac99-4316-207b-08d9e0a552ea X-MS-Exchange-Organization-AuthSource: kwepemm600009.china.huawei.com X-MS-Exchange-Organization-AuthAs: Internal X-MS-Exchange-Organization-AuthMechanism: 07 X-Originating-IP: [10.175.127.227] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemm600009.china.huawei.com (7.193.23.164) X-MS-Exchange-Transport-EndToEndLatency: 00:00:01.8454101 X-MS-Exchange-Processed-By-BccFoldering: 15.01.2308.021 MIME-Version: 1.0 From: Christoph Hellwig <hch(a)lst.de> mainline inclusion from mainline-v5.15-rc1 commit 9d5ee6767c85762205b788ed1245f21fafd6c504 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4SA9G --------------------------- This will simplify error handling going forward. Signed-off-by: Christoph Hellwig <hch(a)lst.de> Signed-off-by: Yu Kuai <yukuai3(a)huawei.com> --- block/genhd.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/block/genhd.c b/block/genhd.c index b0a6214fdbe1..b875de09dd09 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -796,6 +796,13 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, blk_register_region(disk_devt(disk), disk->minors, NULL, exact_match, exact_lock, disk); + if (disk->queue->backing_dev_info->dev) { + ret = sysfs_create_link(&ddev->kobj, + &disk->queue->backing_dev_info->dev->kobj, + "bdi"); + WARN_ON(ret); + } + disk_scan_partitions(disk); /* announce disk after possible partitions are created */ @@ -807,13 +814,6 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, while ((part = disk_part_iter_next(&piter))) kobject_uevent(&part_to_dev(part)->kobj, KOBJ_ADD); disk_part_iter_exit(&piter); - - if (disk->queue->backing_dev_info->dev) { - ret = sysfs_create_link(&ddev->kobj, - &disk->queue->backing_dev_info->dev->kobj, - "bdi"); - WARN_ON(ret); - } } if (register_queue) From patchwork Wed Jan 26 08:35:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai <yukuai3(a)huawei.com> X-Patchwork-Id: 152661 Return-Path: <yukuai3(a)huawei.com> Received: from dggems702-chm.china.huawei.com (10.3.19.179) by dggems702-chm.china.huawei.com (10.3.19.179) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21 via Mailbox Transport; Wed, 26 Jan 2022 16:24:53 +0800 Received: from kwepemm600009.china.huawei.com (7.193.23.164) by dggems702-chm.china.huawei.com (10.3.19.179) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:53 +0800 Received: from huawei.com (10.175.127.227) by kwepemm600009.china.huawei.com (7.193.23.164) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:51 +0800 From: Yu Kuai <yukuai3(a)huawei.com> To: <zhengzengkai(a)huawei.com>, <xiexiuqi(a)huawei.com>, <patchwork(a)huawei.com> CC: <yukuai3(a)huawei.com>, <yi.zhang(a)huawei.com>, <houtao1(a)huawei.com>, <chenxiaosong2(a)huawei.com>, <chengzhihao1(a)huawei.com>, <libaokun1(a)huawei.com>, <luomeng12(a)huawei.com>, <yanaijie(a)huawei.com>, <yangerkun(a)huawei.com>, <yebin10(a)huawei.com>, <yuyufen(a)huawei.com>, <zhangxiaoxu5(a)huawei.com>, <zhengbin13(a)huawei.com>, <koulihong(a)huawei.com>, <qiulaibin(a)huawei.com>, <zhengliang6(a)huawei.com> Subject: [PATCH OLK-5.10 06/12] block: call blk_integrity_add earlier in device_add_disk Date: Wed, 26 Jan 2022 16:35:28 +0800 Message-ID: <20220126083534.4016012-7-yukuai3(a)huawei.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220126083534.4016012-1-yukuai3(a)huawei.com> References: <20220126083534.4016012-1-yukuai3(a)huawei.com> Content-Type: text/plain X-MS-Exchange-Organization-Network-Message-Id: e89abd69-efcc-473e-5645-08d9e0a553b4 X-MS-Exchange-Organization-AuthSource: kwepemm600009.china.huawei.com X-MS-Exchange-Organization-AuthAs: Internal X-MS-Exchange-Organization-AuthMechanism: 07 X-Originating-IP: [10.175.127.227] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemm600009.china.huawei.com (7.193.23.164) X-MS-Exchange-Transport-EndToEndLatency: 00:00:01.7513136 X-MS-Exchange-Processed-By-BccFoldering: 15.01.2308.021 MIME-Version: 1.0 From: Christoph Hellwig <hch(a)lst.de> mainline inclusion from mainline-v5.15-rc1 commit bab53f6b617d9f530978d6e3693f88e586d81a8a category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4SA9G --------------------------- Doing all the sysfs file creation before adding the bdev and thus allowing it to be opened will simplify the about to be added error handling. Signed-off-by: Christoph Hellwig <hch(a)lst.de> Signed-off-by: Yu Kuai <yukuai3(a)huawei.com> --- block/genhd.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/block/genhd.c b/block/genhd.c index b875de09dd09..aa109986a6b0 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -777,6 +777,8 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, */ pm_runtime_set_memalloc_noio(ddev, true); + blk_integrity_add(disk); + disk->part0.holder_dir = kobject_create_and_add("holders", &ddev->kobj); disk->slave_dir = kobject_create_and_add("slaves", &ddev->kobj); @@ -826,7 +828,6 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, WARN_ON_ONCE(!blk_get_queue(disk->queue)); disk_add_events(disk); - blk_integrity_add(disk); disk->flags |= GENHD_FL_UP; } From patchwork Wed Jan 26 08:35:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai <yukuai3(a)huawei.com> X-Patchwork-Id: 152662 Return-Path: <yukuai3(a)huawei.com> Received: from dggems703-chm.china.huawei.com (10.3.19.180) by dggems702-chm.china.huawei.com (10.3.19.179) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21 via Mailbox Transport; Wed, 26 Jan 2022 16:24:54 +0800 Received: from kwepemm600009.china.huawei.com (7.193.23.164) by dggems703-chm.china.huawei.com (10.3.19.180) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:54 +0800 Received: from huawei.com (10.175.127.227) by kwepemm600009.china.huawei.com (7.193.23.164) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:53 +0800 From: Yu Kuai <yukuai3(a)huawei.com> To: <zhengzengkai(a)huawei.com>, <xiexiuqi(a)huawei.com>, <patchwork(a)huawei.com> CC: <yukuai3(a)huawei.com>, <yi.zhang(a)huawei.com>, <houtao1(a)huawei.com>, <chenxiaosong2(a)huawei.com>, <chengzhihao1(a)huawei.com>, <libaokun1(a)huawei.com>, <luomeng12(a)huawei.com>, <yanaijie(a)huawei.com>, <yangerkun(a)huawei.com>, <yebin10(a)huawei.com>, <yuyufen(a)huawei.com>, <zhangxiaoxu5(a)huawei.com>, <zhengbin13(a)huawei.com>, <koulihong(a)huawei.com>, <qiulaibin(a)huawei.com>, <zhengliang6(a)huawei.com> Subject: [PATCH OLK-5.10 07/12] block: return errors from blk_integrity_add Date: Wed, 26 Jan 2022 16:35:29 +0800 Message-ID: <20220126083534.4016012-8-yukuai3(a)huawei.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220126083534.4016012-1-yukuai3(a)huawei.com> References: <20220126083534.4016012-1-yukuai3(a)huawei.com> Content-Type: text/plain X-MS-Exchange-Organization-Network-Message-Id: 85f46a94-096f-4839-b1f3-08d9e0a5547e X-MS-Exchange-Organization-AuthSource: kwepemm600009.china.huawei.com X-MS-Exchange-Organization-AuthAs: Internal X-MS-Exchange-Organization-AuthMechanism: 07 X-Originating-IP: [10.175.127.227] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemm600009.china.huawei.com (7.193.23.164) X-MS-Exchange-Transport-EndToEndLatency: 00:00:01.7611417 X-MS-Exchange-Processed-By-BccFoldering: 15.01.2308.021 MIME-Version: 1.0 From: Luis Chamberlain <mcgrof(a)kernel.org> mainline inclusion from mainline-v5.15-rc1 commit 614310c9c8ca15359f4e71a5bbd9165897b4d54e category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4SA9G --------------------------- Prepare for proper error handling in add_disk. Signed-off-by: Luis Chamberlain <mcgrof(a)kernel.org> [hch: split from a larger patch] Signed-off-by: Christoph Hellwig <hch(a)lst.de> Reviewed-by: Hannes Reinecke <hare(a)suse.de> Link: https://lore.kernel.org/r/20210818144542.19305-8-hch@lst.de Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Signed-off-by: Yu Kuai <yukuai3(a)huawei.com> --- block/blk-integrity.c | 12 +++++++----- block/blk.h | 5 +++-- 2 files changed, 10 insertions(+), 7 deletions(-) diff --git a/block/blk-integrity.c b/block/blk-integrity.c index 9e83159f5a52..16d5d5338392 100644 --- a/block/blk-integrity.c +++ b/block/blk-integrity.c @@ -438,13 +438,15 @@ void blk_integrity_unregister(struct gendisk *disk) } EXPORT_SYMBOL(blk_integrity_unregister); -void blk_integrity_add(struct gendisk *disk) +int blk_integrity_add(struct gendisk *disk) { - if (kobject_init_and_add(&disk->integrity_kobj, &integrity_ktype, - &disk_to_dev(disk)->kobj, "%s", "integrity")) - return; + int ret; - kobject_uevent(&disk->integrity_kobj, KOBJ_ADD); + ret = kobject_init_and_add(&disk->integrity_kobj, &integrity_ktype, + &disk_to_dev(disk)->kobj, "%s", "integrity"); + if (!ret) + kobject_uevent(&disk->integrity_kobj, KOBJ_ADD); + return ret; } void blk_integrity_del(struct gendisk *disk) diff --git a/block/blk.h b/block/blk.h index cd39fd0c93f1..80bb41a43120 100644 --- a/block/blk.h +++ b/block/blk.h @@ -134,7 +134,7 @@ static inline bool integrity_req_gap_front_merge(struct request *req, bip_next->bip_vec[0].bv_offset); } -void blk_integrity_add(struct gendisk *); +int blk_integrity_add(struct gendisk *disk); void blk_integrity_del(struct gendisk *); #else /* CONFIG_BLK_DEV_INTEGRITY */ static inline bool blk_integrity_merge_rq(struct request_queue *rq, @@ -168,8 +168,9 @@ static inline bool bio_integrity_endio(struct bio *bio) static inline void bio_integrity_free(struct bio *bio) { } -static inline void blk_integrity_add(struct gendisk *disk) +static inline int blk_integrity_add(struct gendisk *disk) { + return 0; } static inline void blk_integrity_del(struct gendisk *disk) { From patchwork Wed Jan 26 08:35:30 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai <yukuai3(a)huawei.com> X-Patchwork-Id: 152663 Return-Path: <yukuai3(a)huawei.com> Received: from dggems704-chm.china.huawei.com (10.3.19.181) by dggems702-chm.china.huawei.com (10.3.19.179) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21 via Mailbox Transport; Wed, 26 Jan 2022 16:24:56 +0800 Received: from kwepemm600009.china.huawei.com (7.193.23.164) by dggems704-chm.china.huawei.com (10.3.19.181) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:55 +0800 Received: from huawei.com (10.175.127.227) by kwepemm600009.china.huawei.com (7.193.23.164) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:54 +0800 From: Yu Kuai <yukuai3(a)huawei.com> To: <zhengzengkai(a)huawei.com>, <xiexiuqi(a)huawei.com>, <patchwork(a)huawei.com> CC: <yukuai3(a)huawei.com>, <yi.zhang(a)huawei.com>, <houtao1(a)huawei.com>, <chenxiaosong2(a)huawei.com>, <chengzhihao1(a)huawei.com>, <libaokun1(a)huawei.com>, <luomeng12(a)huawei.com>, <yanaijie(a)huawei.com>, <yangerkun(a)huawei.com>, <yebin10(a)huawei.com>, <yuyufen(a)huawei.com>, <zhangxiaoxu5(a)huawei.com>, <zhengbin13(a)huawei.com>, <koulihong(a)huawei.com>, <qiulaibin(a)huawei.com>, <zhengliang6(a)huawei.com> Subject: [PATCH OLK-5.10 08/12] block: return errors from disk_alloc_events Date: Wed, 26 Jan 2022 16:35:30 +0800 Message-ID: <20220126083534.4016012-9-yukuai3(a)huawei.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220126083534.4016012-1-yukuai3(a)huawei.com> References: <20220126083534.4016012-1-yukuai3(a)huawei.com> Content-Type: text/plain X-MS-Exchange-Organization-Network-Message-Id: 2664ecdf-dfd3-496d-02da-08d9e0a55548 X-MS-Exchange-Organization-AuthSource: kwepemm600009.china.huawei.com X-MS-Exchange-Organization-AuthAs: Internal X-MS-Exchange-Organization-AuthMechanism: 07 X-Originating-IP: [10.175.127.227] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemm600009.china.huawei.com (7.193.23.164) X-MS-Exchange-Transport-EndToEndLatency: 00:00:01.7000588 X-MS-Exchange-Processed-By-BccFoldering: 15.01.2308.021 MIME-Version: 1.0 From: Luis Chamberlain <mcgrof(a)kernel.org> mainline inclusion from mainline-v5.15-rc1 commit 92e7755ebc69233e25a2d1b760aeff536dc4016b category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4SA9G --------------------------- Prepare for proper error handling in add_disk. Signed-off-by: Luis Chamberlain <mcgrof(a)kernel.org> [hch: split from a larger patch] Signed-off-by: Christoph Hellwig <hch(a)lst.de> Reviewed-by: Hannes Reinecke <hare(a)suse.de> Link: https://lore.kernel.org/r/20210818144542.19305-9-hch@lst.de Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Signed-off-by: Yu Kuai <yukuai3(a)huawei.com> --- block/genhd.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/block/genhd.c b/block/genhd.c index aa109986a6b0..ec1e2fe27249 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -40,7 +40,7 @@ static DEFINE_IDR(ext_devt_idr); static void disk_check_events(struct disk_events *ev, unsigned int *clearing_ptr); -static void disk_alloc_events(struct gendisk *disk); +static int disk_alloc_events(struct gendisk *disk); static void disk_add_events(struct gendisk *disk); static void disk_del_events(struct gendisk *disk); static void disk_release_events(struct gendisk *disk); @@ -2311,17 +2311,17 @@ module_param_cb(events_dfl_poll_msecs, &disk_events_dfl_poll_msecs_param_ops, /* * disk_{alloc|add|del|release}_events - initialize and destroy disk_events. */ -static void disk_alloc_events(struct gendisk *disk) +static int disk_alloc_events(struct gendisk *disk) { struct disk_events *ev; if (!disk->fops->check_events || !disk->events) - return; + return 0; ev = kzalloc(sizeof(*ev), GFP_KERNEL); if (!ev) { pr_warn("%s: failed to initialize events\n", disk->disk_name); - return; + return -ENOMEM; } INIT_LIST_HEAD(&ev->node); @@ -2333,6 +2333,7 @@ static void disk_alloc_events(struct gendisk *disk) INIT_DELAYED_WORK(&ev->dwork, disk_events_workfn); disk->ev = ev; + return 0; } static void disk_add_events(struct gendisk *disk) From patchwork Wed Jan 26 08:35:31 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai <yukuai3(a)huawei.com> X-Patchwork-Id: 152664 Return-Path: <yukuai3(a)huawei.com> Received: from dggems706-chm.china.huawei.com (10.3.19.183) by dggems702-chm.china.huawei.com (10.3.19.179) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21 via Mailbox Transport; Wed, 26 Jan 2022 16:24:57 +0800 Received: from kwepemm600009.china.huawei.com (7.193.23.164) by dggems706-chm.china.huawei.com (10.3.19.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:57 +0800 Received: from huawei.com (10.175.127.227) by kwepemm600009.china.huawei.com (7.193.23.164) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:55 +0800 From: Yu Kuai <yukuai3(a)huawei.com> To: <zhengzengkai(a)huawei.com>, <xiexiuqi(a)huawei.com>, <patchwork(a)huawei.com> CC: <yukuai3(a)huawei.com>, <yi.zhang(a)huawei.com>, <houtao1(a)huawei.com>, <chenxiaosong2(a)huawei.com>, <chengzhihao1(a)huawei.com>, <libaokun1(a)huawei.com>, <luomeng12(a)huawei.com>, <yanaijie(a)huawei.com>, <yangerkun(a)huawei.com>, <yebin10(a)huawei.com>, <yuyufen(a)huawei.com>, <zhangxiaoxu5(a)huawei.com>, <zhengbin13(a)huawei.com>, <koulihong(a)huawei.com>, <qiulaibin(a)huawei.com>, <zhengliang6(a)huawei.com> Subject: [PATCH OLK-5.10 09/12] block: refactor device number setup in __device_add_disk Date: Wed, 26 Jan 2022 16:35:31 +0800 Message-ID: <20220126083534.4016012-10-yukuai3(a)huawei.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220126083534.4016012-1-yukuai3(a)huawei.com> References: <20220126083534.4016012-1-yukuai3(a)huawei.com> Content-Type: text/plain X-MS-Exchange-Organization-Network-Message-Id: d9a6c01c-83ab-4afd-0792-08d9e0a55611 X-MS-Exchange-Organization-AuthSource: kwepemm600009.china.huawei.com X-MS-Exchange-Organization-AuthAs: Internal X-MS-Exchange-Organization-AuthMechanism: 07 X-Originating-IP: [10.175.127.227] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemm600009.china.huawei.com (7.193.23.164) X-MS-Exchange-Transport-EndToEndLatency: 00:00:01.8228257 X-MS-Exchange-Processed-By-BccFoldering: 15.01.2308.021 MIME-Version: 1.0 mainline inclusion from mainline-v5.14-rc1 commit 7c3f828b522b07adb341b08fde1660685c5ba3eb category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4SA9G --------------------------- Untangle the mess around blk_alloc_devt by moving the check for the used allocation scheme into the callers. Signed-off-by: Christoph Hellwig <hch(a)lst.de> Reviewed-by: Hannes Reinecke <hare(a)suse.de> Reviewed-by: Luis Chamberlain <mcgrof(a)kernel.org> Reviewed-by: Ulf Hansson <ulf.hansson(a)linaro.org> Link: https://lore.kernel.org/r/20210521055116.1053587-2-hch@lst.de Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Signed-off-by: Yu Kuai <yukuai3(a)huawei.com> --- block/blk.h | 4 +- block/genhd.c | 89 +++++++++++++---------------------------- block/partitions/core.c | 16 ++++++-- 3 files changed, 42 insertions(+), 67 deletions(-) diff --git a/block/blk.h b/block/blk.h index 80bb41a43120..88b00aa6e1c6 100644 --- a/block/blk.h +++ b/block/blk.h @@ -354,8 +354,8 @@ static inline void blk_queue_free_zone_bitmaps(struct request_queue *q) {} struct hd_struct *disk_map_sector_rcu(struct gendisk *disk, sector_t sector); -int blk_alloc_devt(struct hd_struct *part, dev_t *devt); -void blk_free_devt(dev_t devt); +int blk_alloc_ext_minor(struct hd_struct *part); +void blk_free_ext_minor(unsigned int minor); void blk_invalidate_devt(dev_t devt); char *disk_name(struct gendisk *hd, int partno, char *buf); #define ADDPART_FLAG_NONE 0 diff --git a/block/genhd.c b/block/genhd.c index ec1e2fe27249..019641280df3 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -557,31 +557,10 @@ static int blk_mangle_minor(int minor) return minor; } -/** - * blk_alloc_devt - allocate a dev_t for a partition - * @part: partition to allocate dev_t for - * @devt: out parameter for resulting dev_t - * - * Allocate a dev_t for block device. - * - * RETURNS: - * 0 on success, allocated dev_t is returned in *@devt. -errno on - * failure. - * - * CONTEXT: - * Might sleep. - */ -int blk_alloc_devt(struct hd_struct *part, dev_t *devt) +int blk_alloc_ext_minor(struct hd_struct *part) { - struct gendisk *disk = part_to_disk(part); int idx; - /* in consecutive minor range? */ - if (part->partno < disk->minors) { - *devt = MKDEV(disk->major, disk->first_minor + part->partno); - return 0; - } - /* allocate ext devt */ idr_preload(GFP_KERNEL); @@ -590,32 +569,20 @@ int blk_alloc_devt(struct hd_struct *part, dev_t *devt) spin_unlock_bh(&ext_devt_lock); idr_preload_end(); - if (idx < 0) - return idx == -ENOSPC ? -EBUSY : idx; + if (idx < 0) { + if (idx == -ENOSPC) + return -EBUSY; + return idx; + } - *devt = MKDEV(BLOCK_EXT_MAJOR, blk_mangle_minor(idx)); - return 0; + return blk_mangle_minor(idx); } -/** - * blk_free_devt - free a dev_t - * @devt: dev_t to free - * - * Free @devt which was allocated using blk_alloc_devt(). - * - * CONTEXT: - * Might sleep. - */ -void blk_free_devt(dev_t devt) +void blk_free_ext_minor(unsigned int minor) { - if (devt == MKDEV(0, 0)) - return; - - if (MAJOR(devt) == BLOCK_EXT_MAJOR) { - spin_lock_bh(&ext_devt_lock); - idr_remove(&ext_devt_idr, blk_mangle_minor(MINOR(devt))); - spin_unlock_bh(&ext_devt_lock); - } + spin_lock_bh(&ext_devt_lock); + idr_remove(&ext_devt_idr, blk_mangle_minor(minor)); + spin_unlock_bh(&ext_devt_lock); } /* @@ -719,7 +686,6 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, struct device *ddev = disk_to_dev(disk); struct disk_part_iter piter; struct hd_struct *part; - dev_t devt; int ret; /* @@ -731,26 +697,25 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, if (register_queue) elevator_init_mq(disk->queue); - /* minors == 0 indicates to use ext devt from part0 and should - * be accompanied with EXT_DEVT flag. Make sure all - * parameters make sense. - */ - WARN_ON(disk->minors && !(disk->major || disk->first_minor)); - WARN_ON(!disk->minors && - !(disk->flags & (GENHD_FL_EXT_DEVT | GENHD_FL_HIDDEN))); + if (disk->major) { + WARN_ON(!disk->minors); + } else { + WARN_ON(disk->minors); + WARN_ON(!(disk->flags & (GENHD_FL_EXT_DEVT | GENHD_FL_HIDDEN))); - ret = blk_alloc_devt(&disk->part0, &devt); - if (ret) { - WARN_ON(1); - return; + ret = blk_alloc_ext_minor(&disk->part0); + if (ret < 0) { + WARN_ON(1); + return; + } + disk->major = BLOCK_EXT_MAJOR; + disk->first_minor = MINOR(ret); } - disk->major = MAJOR(devt); - disk->first_minor = MINOR(devt); disk_alloc_events(disk); if (!(disk->flags & GENHD_FL_HIDDEN)) - ddev->devt = devt; + ddev->devt = MKDEV(disk->major, disk->first_minor); /* delay uevents, until we scanned partition table */ dev_set_uevent_suppress(ddev, 1); @@ -792,7 +757,8 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, } else { struct backing_dev_info *bdi = disk->queue->backing_dev_info; - ret = bdi_register(bdi, "%u:%u", MAJOR(devt), MINOR(devt)); + ret = bdi_register(bdi, "%u:%u", + disk->major, disk->first_minor); WARN_ON(ret); bdi_set_owner(bdi, ddev); blk_register_region(disk_devt(disk), disk->minors, NULL, @@ -1554,7 +1520,8 @@ static void disk_release(struct device *dev) might_sleep(); - blk_free_devt(dev->devt); + if (MAJOR(dev->devt) == BLOCK_EXT_MAJOR) + blk_free_ext_minor(MINOR(dev->devt)); disk_release_events(disk); kfree(disk->random); disk_replace_part_tbl(disk, NULL); diff --git a/block/partitions/core.c b/block/partitions/core.c index 569b0ca9f6e1..68d75acc269a 100644 --- a/block/partitions/core.c +++ b/block/partitions/core.c @@ -258,7 +258,9 @@ static const struct attribute_group *part_attr_groups[] = { static void part_release(struct device *dev) { struct hd_struct *p = dev_to_part(dev); - blk_free_devt(dev->devt); + + if (MAJOR(dev->devt) == BLOCK_EXT_MAJOR) + blk_free_ext_minor(MINOR(dev->devt)); hd_free_part(p); kfree(p); } @@ -439,9 +441,15 @@ static struct hd_struct *add_partition(struct gendisk *disk, int partno, pdev->type = &part_type; pdev->parent = ddev; - err = blk_alloc_devt(p, &devt); - if (err) - goto out_free_info; + /* in consecutive minor range? */ + if (partno < disk->minors) { + devt = MKDEV(disk->major, disk->first_minor + partno); + } else { + err = blk_alloc_ext_minor(p); + if (err < 0) + goto out_free_info; + devt = MKDEV(BLOCK_EXT_MAJOR, err); + } pdev->devt = devt; /* delay uevent until 'holders' subdir is created */ From patchwork Wed Jan 26 08:35:32 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai <yukuai3(a)huawei.com> X-Patchwork-Id: 152665 Return-Path: <yukuai3(a)huawei.com> Received: from dggems705-chm.china.huawei.com (10.3.19.182) by dggems702-chm.china.huawei.com (10.3.19.179) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21 via Mailbox Transport; Wed, 26 Jan 2022 16:24:58 +0800 Received: from kwepemm600009.china.huawei.com (7.193.23.164) by dggems705-chm.china.huawei.com (10.3.19.182) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:58 +0800 Received: from huawei.com (10.175.127.227) by kwepemm600009.china.huawei.com (7.193.23.164) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:56 +0800 From: Yu Kuai <yukuai3(a)huawei.com> To: <zhengzengkai(a)huawei.com>, <xiexiuqi(a)huawei.com>, <patchwork(a)huawei.com> CC: <yukuai3(a)huawei.com>, <yi.zhang(a)huawei.com>, <houtao1(a)huawei.com>, <chenxiaosong2(a)huawei.com>, <chengzhihao1(a)huawei.com>, <libaokun1(a)huawei.com>, <luomeng12(a)huawei.com>, <yanaijie(a)huawei.com>, <yangerkun(a)huawei.com>, <yebin10(a)huawei.com>, <yuyufen(a)huawei.com>, <zhangxiaoxu5(a)huawei.com>, <zhengbin13(a)huawei.com>, <koulihong(a)huawei.com>, <qiulaibin(a)huawei.com>, <zhengliang6(a)huawei.com> Subject: [PATCH OLK-5.10 10/12] block: automatically enable GENHD_FL_EXT_DEVT Date: Wed, 26 Jan 2022 16:35:32 +0800 Message-ID: <20220126083534.4016012-11-yukuai3(a)huawei.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220126083534.4016012-1-yukuai3(a)huawei.com> References: <20220126083534.4016012-1-yukuai3(a)huawei.com> Content-Type: text/plain X-MS-Exchange-Organization-Network-Message-Id: 78c33535-647d-4416-5833-08d9e0a556da X-MS-Exchange-Organization-AuthSource: kwepemm600009.china.huawei.com X-MS-Exchange-Organization-AuthAs: Internal X-MS-Exchange-Organization-AuthMechanism: 07 X-Originating-IP: [10.175.127.227] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemm600009.china.huawei.com (7.193.23.164) X-MS-Exchange-Transport-EndToEndLatency: 00:00:01.8541754 X-MS-Exchange-Processed-By-BccFoldering: 15.01.2308.021 MIME-Version: 1.0 From: Christoph Hellwig <hch(a)lst.de> mainline inclusion from mainline-v5.14-rc1 commit 0d1feb72ffd8578f6f167ca15b2096c276c1f6df category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4SA9G --------------------------- Automatically set the GENHD_FL_EXT_DEVT flag for all disks allocated without an explicit number of minors. This is what all new block drivers should do, so make sure it is the default without boilerplate code. Signed-off-by: Christoph Hellwig <hch(a)lst.de> Reviewed-by: Hannes Reinecke <hare(a)suse.de> Reviewed-by: Luis Chamberlain <mcgrof(a)kernel.org> Reviewed-by: Ulf Hansson <ulf.hansson(a)linaro.org> Link: https://lore.kernel.org/r/20210521055116.1053587-4-hch@lst.de Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Signed-off-by: Yu Kuai <yukuai3(a)huawei.com> --- block/genhd.c | 2 +- drivers/block/brd.c | 1 - drivers/block/loop.c | 1 - drivers/block/null_blk_main.c | 2 +- drivers/block/rbd.c | 2 -- drivers/block/virtio_blk.c | 1 - drivers/ide/ide-gd.c | 1 - drivers/lightnvm/core.c | 1 - drivers/md/md.c | 1 - drivers/memstick/core/ms_block.c | 1 - drivers/mmc/core/block.c | 1 - drivers/nvdimm/blk.c | 1 - drivers/nvdimm/btt.c | 1 - drivers/nvdimm/pmem.c | 1 - drivers/nvme/host/core.c | 2 +- drivers/nvme/host/multipath.c | 1 - drivers/scsi/sd.c | 1 - 17 files changed, 3 insertions(+), 18 deletions(-) diff --git a/block/genhd.c b/block/genhd.c index 019641280df3..c35bceed6870 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -701,7 +701,6 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, WARN_ON(!disk->minors); } else { WARN_ON(disk->minors); - WARN_ON(!(disk->flags & (GENHD_FL_EXT_DEVT | GENHD_FL_HIDDEN))); ret = blk_alloc_ext_minor(&disk->part0); if (ret < 0) { @@ -710,6 +709,7 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, } disk->major = BLOCK_EXT_MAJOR; disk->first_minor = MINOR(ret); + disk->flags |= GENHD_FL_EXT_DEVT; } disk_alloc_events(disk); diff --git a/drivers/block/brd.c b/drivers/block/brd.c index 085d1ff2bc03..395195edd5d7 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -411,7 +411,6 @@ static struct brd_device *brd_alloc(int i) disk->first_minor = i * max_part; disk->fops = &brd_fops; disk->private_data = brd; - disk->flags = GENHD_FL_EXT_DEVT; strlcpy(disk->disk_name, buf, DISK_NAME_LEN); set_capacity(disk, rd_size * 2); diff --git a/drivers/block/loop.c b/drivers/block/loop.c index e354faf7c9e6..b761afd294a2 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -2154,7 +2154,6 @@ static int loop_add(struct loop_device **l, int i) */ if (!part_shift) disk->flags |= GENHD_FL_NO_PART_SCAN; - disk->flags |= GENHD_FL_EXT_DEVT; atomic_set(&lo->lo_refcnt, 0); lo->lo_number = i; spin_lock_init(&lo->lo_lock); diff --git a/drivers/block/null_blk_main.c b/drivers/block/null_blk_main.c index bb3686c3869d..4279db5bef59 100644 --- a/drivers/block/null_blk_main.c +++ b/drivers/block/null_blk_main.c @@ -1692,7 +1692,7 @@ static int null_gendisk_register(struct nullb *nullb) return -ENOMEM; set_capacity(disk, size); - disk->flags |= GENHD_FL_EXT_DEVT | GENHD_FL_SUPPRESS_PARTITION_INFO; + disk->flags |= GENHD_FL_SUPPRESS_PARTITION_INFO; disk->major = null_major; disk->first_minor = nullb->index; if (queue_is_mq(nullb->q)) diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 340b1df365f7..7249448b2a51 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -4973,8 +4973,6 @@ static int rbd_init_disk(struct rbd_device *rbd_dev) rbd_dev->dev_id); disk->major = rbd_dev->major; disk->first_minor = rbd_dev->minor; - if (single_major) - disk->flags |= GENHD_FL_EXT_DEVT; disk->fops = &rbd_bd_ops; disk->private_data = rbd_dev; diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 42acf9587ef3..eba1d6e06ca2 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -794,7 +794,6 @@ static int virtblk_probe(struct virtio_device *vdev) vblk->disk->first_minor = index_to_minor(index); vblk->disk->private_data = vblk; vblk->disk->fops = &virtblk_fops; - vblk->disk->flags |= GENHD_FL_EXT_DEVT; vblk->index = index; /* configure queue flush support */ diff --git a/drivers/ide/ide-gd.c b/drivers/ide/ide-gd.c index e2b6c82586ce..1c19f6830704 100644 --- a/drivers/ide/ide-gd.c +++ b/drivers/ide/ide-gd.c @@ -395,7 +395,6 @@ static int ide_gd_probe(ide_drive_t *drive) set_capacity(g, ide_gd_capacity(drive)); g->minors = IDE_DISK_MINORS; - g->flags |= GENHD_FL_EXT_DEVT; if (drive->dev_flags & IDE_DFLAG_REMOVABLE) g->flags = GENHD_FL_REMOVABLE; g->fops = &ide_gd_ops; diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c index 28ddcaa5358b..8903b7b57e61 100644 --- a/drivers/lightnvm/core.c +++ b/drivers/lightnvm/core.c @@ -383,7 +383,6 @@ static int nvm_create_tgt(struct nvm_dev *dev, struct nvm_ioctl_create *create) } strlcpy(tdisk->disk_name, create->tgtname, sizeof(tdisk->disk_name)); - tdisk->flags = GENHD_FL_EXT_DEVT; tdisk->major = 0; tdisk->first_minor = 0; tdisk->fops = tt->bops; diff --git a/drivers/md/md.c b/drivers/md/md.c index a299fda5b0e9..1cc26fab10b1 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5721,7 +5721,6 @@ static int md_alloc(dev_t dev, char *name) * 'mdp' device redundant, but we can't really * remove it now. */ - disk->flags |= GENHD_FL_EXT_DEVT; disk->events |= DISK_EVENT_MEDIA_CHANGE; mddev->gendisk = disk; add_disk(disk); diff --git a/drivers/memstick/core/ms_block.c b/drivers/memstick/core/ms_block.c index bc1f484f50f1..0ca990f7ca3e 100644 --- a/drivers/memstick/core/ms_block.c +++ b/drivers/memstick/core/ms_block.c @@ -2136,7 +2136,6 @@ static int msb_init_disk(struct memstick_dev *card) msb->disk->fops = &msb_bdops; msb->disk->private_data = msb; msb->disk->queue = msb->queue; - msb->disk->flags |= GENHD_FL_EXT_DEVT; capacity = msb->pages_in_block * msb->logical_block_count; capacity *= (msb->page_size / 512); diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index 94caee49da99..78a491ddcbf6 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -2347,7 +2347,6 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card, md->disk->queue = md->queue.queue; md->parent = parent; set_disk_ro(md->disk, md->read_only || default_ro); - md->disk->flags = GENHD_FL_EXT_DEVT; if (area_type & (MMC_BLK_DATA_AREA_RPMB | MMC_BLK_DATA_AREA_BOOT)) md->disk->flags |= GENHD_FL_NO_PART_SCAN | GENHD_FL_SUPPRESS_PARTITION_INFO; diff --git a/drivers/nvdimm/blk.c b/drivers/nvdimm/blk.c index 22e5617b2cea..f1295f6896c9 100644 --- a/drivers/nvdimm/blk.c +++ b/drivers/nvdimm/blk.c @@ -267,7 +267,6 @@ static int nsblk_attach_disk(struct nd_namespace_blk *nsblk) disk->first_minor = 0; disk->fops = &nd_blk_fops; disk->queue = q; - disk->flags = GENHD_FL_EXT_DEVT; disk->private_data = nsblk; nvdimm_namespace_disk_name(&nsblk->common, disk->disk_name); diff --git a/drivers/nvdimm/btt.c b/drivers/nvdimm/btt.c index 12ff6f8784ac..42d79a9a404f 100644 --- a/drivers/nvdimm/btt.c +++ b/drivers/nvdimm/btt.c @@ -1536,7 +1536,6 @@ static int btt_blk_init(struct btt *btt) btt->btt_disk->fops = &btt_fops; btt->btt_disk->private_data = btt; btt->btt_disk->queue = btt->btt_queue; - btt->btt_disk->flags = GENHD_FL_EXT_DEVT; blk_queue_logical_block_size(btt->btt_queue, btt->sector_size); blk_queue_max_hw_sectors(btt->btt_queue, UINT_MAX); diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c index d5dd79b59b16..ca2a1967c070 100644 --- a/drivers/nvdimm/pmem.c +++ b/drivers/nvdimm/pmem.c @@ -476,7 +476,6 @@ static int pmem_attach_disk(struct device *dev, disk->fops = &pmem_fops; disk->queue = q; - disk->flags = GENHD_FL_EXT_DEVT; disk->private_data = pmem; nvdimm_namespace_disk_name(ndns, disk->disk_name); set_capacity(disk, (pmem->size - pmem->pfn_pad - pmem->data_offset) diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 9ccf44592fe4..24d59b73ac3e 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -3825,7 +3825,7 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid, struct gendisk *disk; struct nvme_id_ns *id; char disk_name[DISK_NAME_LEN]; - int node = ctrl->numa_node, flags = GENHD_FL_EXT_DEVT, ret; + int node = ctrl->numa_node, flags = 0, ret; if (nvme_identify_ns(ctrl, nsid, ids, &id)) return; diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c index 18a756444d5a..95a5222b3642 100644 --- a/drivers/nvme/host/multipath.c +++ b/drivers/nvme/host/multipath.c @@ -392,7 +392,6 @@ int nvme_mpath_alloc_disk(struct nvme_ctrl *ctrl, struct nvme_ns_head *head) head->disk->fops = &nvme_ns_head_ops; head->disk->private_data = head; head->disk->queue = q; - head->disk->flags = GENHD_FL_EXT_DEVT; sprintf(head->disk->disk_name, "nvme%dn%d", ctrl->subsys->instance, head->instance); return 0; diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 3fc184e9702f..db7166fd05e1 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -3479,7 +3479,6 @@ static int sd_probe(struct device *dev) sd_revalidate_disk(gd); - gd->flags = GENHD_FL_EXT_DEVT; if (sdp->removable) { gd->flags |= GENHD_FL_REMOVABLE; gd->events |= DISK_EVENT_MEDIA_CHANGE; From patchwork Wed Jan 26 08:35:33 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai <yukuai3(a)huawei.com> X-Patchwork-Id: 152666 Return-Path: <yukuai3(a)huawei.com> Received: from dggems701-chm.china.huawei.com (10.3.19.178) by dggems702-chm.china.huawei.com (10.3.19.179) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21 via Mailbox Transport; Wed, 26 Jan 2022 16:25:00 +0800 Received: from kwepemm600009.china.huawei.com (7.193.23.164) by dggems701-chm.china.huawei.com (10.3.19.178) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:59 +0800 Received: from huawei.com (10.175.127.227) by kwepemm600009.china.huawei.com (7.193.23.164) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:58 +0800 From: Yu Kuai <yukuai3(a)huawei.com> To: <zhengzengkai(a)huawei.com>, <xiexiuqi(a)huawei.com>, <patchwork(a)huawei.com> CC: <yukuai3(a)huawei.com>, <yi.zhang(a)huawei.com>, <houtao1(a)huawei.com>, <chenxiaosong2(a)huawei.com>, <chengzhihao1(a)huawei.com>, <libaokun1(a)huawei.com>, <luomeng12(a)huawei.com>, <yanaijie(a)huawei.com>, <yangerkun(a)huawei.com>, <yebin10(a)huawei.com>, <yuyufen(a)huawei.com>, <zhangxiaoxu5(a)huawei.com>, <zhengbin13(a)huawei.com>, <koulihong(a)huawei.com>, <qiulaibin(a)huawei.com>, <zhengliang6(a)huawei.com> Subject: [PATCH OLK-5.10 11/12] block: add error handling for device_add_disk / add_disk Date: Wed, 26 Jan 2022 16:35:33 +0800 Message-ID: <20220126083534.4016012-12-yukuai3(a)huawei.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220126083534.4016012-1-yukuai3(a)huawei.com> References: <20220126083534.4016012-1-yukuai3(a)huawei.com> Content-Type: text/plain X-MS-Exchange-Organization-Network-Message-Id: af00f8da-255b-48f7-afb7-08d9e0a557a7 X-MS-Exchange-Organization-AuthSource: kwepemm600009.china.huawei.com X-MS-Exchange-Organization-AuthAs: Internal X-MS-Exchange-Organization-AuthMechanism: 07 X-Originating-IP: [10.175.127.227] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemm600009.china.huawei.com (7.193.23.164) X-MS-Exchange-Transport-EndToEndLatency: 00:00:01.7770389 X-MS-Exchange-Processed-By-BccFoldering: 15.01.2308.021 MIME-Version: 1.0 hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4SA9G --------------------------- Properly unwind on errors in device_add_disk. This is the initial work as drivers are not converted yet, which will follow in separate patches. Signed-off-by: Yu Kuai <yukuai3(a)huawei.com> --- block/genhd.c | 91 +++++++++++++++++++++++++++++++++++---------------- 1 file changed, 63 insertions(+), 28 deletions(-) diff --git a/block/genhd.c b/block/genhd.c index c35bceed6870..371fdd2e0786 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -676,10 +676,8 @@ static void disk_scan_partitions(struct gendisk *disk) * * This function registers the partitioning information in @disk * with the kernel. - * - * FIXME: error handling */ -static void __device_add_disk(struct device *parent, struct gendisk *disk, +static int __device_add_disk(struct device *parent, struct gendisk *disk, const struct attribute_group **groups, bool register_queue) { @@ -698,22 +696,20 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, elevator_init_mq(disk->queue); if (disk->major) { - WARN_ON(!disk->minors); + if (WARN_ON(!disk->minors)) + return -EINVAL; } else { - WARN_ON(disk->minors); + if (WARN_ON(disk->minors)) + return -EINVAL; ret = blk_alloc_ext_minor(&disk->part0); - if (ret < 0) { - WARN_ON(1); - return; - } + if (ret < 0) + return ret; disk->major = BLOCK_EXT_MAJOR; disk->first_minor = MINOR(ret); disk->flags |= GENHD_FL_EXT_DEVT; } - disk_alloc_events(disk); - if (!(disk->flags & GENHD_FL_HIDDEN)) ddev->devt = MKDEV(disk->major, disk->first_minor); @@ -724,15 +720,19 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, ddev->groups = groups; dev_set_name(ddev, "%s", disk->disk_name); - if (device_add(ddev)) - return; + ret = device_add(ddev); + if (ret) + goto out_free_ext_minor; + + ret = disk_alloc_events(disk); + if (ret) + goto out_device_del; + if (!sysfs_deprecated) { ret = sysfs_create_link(block_depr, &ddev->kobj, kobject_name(&ddev->kobj)); - if (ret) { - device_del(ddev); - return; - } + if (ret) + goto out_device_del; } /* @@ -742,10 +742,20 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, */ pm_runtime_set_memalloc_noio(ddev, true); - blk_integrity_add(disk); + ret = blk_integrity_add(disk); + if (ret) + goto out_del_block_link; disk->part0.holder_dir = kobject_create_and_add("holders", &ddev->kobj); + if (!disk->part0.holder_dir) { + ret = -ENOMEM; + goto out_del_integrity; + } disk->slave_dir = kobject_create_and_add("slaves", &ddev->kobj); + if (!disk->slave_dir) { + ret = -ENOMEM; + goto out_put_holder_dir; + } if (disk->flags & GENHD_FL_HIDDEN) { /* @@ -759,17 +769,17 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, ret = bdi_register(bdi, "%u:%u", disk->major, disk->first_minor); - WARN_ON(ret); + if (ret) + goto out_put_slave_dir; bdi_set_owner(bdi, ddev); blk_register_region(disk_devt(disk), disk->minors, NULL, exact_match, exact_lock, disk); - if (disk->queue->backing_dev_info->dev) { - ret = sysfs_create_link(&ddev->kobj, - &disk->queue->backing_dev_info->dev->kobj, - "bdi"); - WARN_ON(ret); - } + ret = sysfs_create_link(&ddev->kobj, + &disk->queue->backing_dev_info->dev->kobj, + "bdi"); + if (ret) + goto out_unregister_bdi; disk_scan_partitions(disk); @@ -784,8 +794,11 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, disk_part_iter_exit(&piter); } - if (register_queue) - blk_register_queue(disk); + if (register_queue) { + ret = blk_register_queue(disk); + if (ret) + goto out_del_bdi_link; + } /* * Take an extra ref on queue which will be put on disk_release() @@ -794,8 +807,30 @@ static void __device_add_disk(struct device *parent, struct gendisk *disk, WARN_ON_ONCE(!blk_get_queue(disk->queue)); disk_add_events(disk); - disk->flags |= GENHD_FL_UP; + return 0; + +out_del_bdi_link: + if (!(disk->flags & GENHD_FL_HIDDEN)) + sysfs_remove_link(&ddev->kobj, "bdi"); +out_unregister_bdi: + if (!(disk->flags & GENHD_FL_HIDDEN)) + bdi_unregister(disk->queue->backing_dev_info); +out_put_slave_dir: + kobject_put(disk->slave_dir); +out_put_holder_dir: + kobject_put(disk->part0.holder_dir); +out_del_integrity: + blk_integrity_del(disk); +out_del_block_link: + if (!sysfs_deprecated) + sysfs_remove_link(block_depr, dev_name(ddev)); +out_device_del: + device_del(ddev); +out_free_ext_minor: + if (disk->major == BLOCK_EXT_MAJOR) + blk_free_ext_minor(disk->first_minor); + return WARN_ON_ONCE(ret); /* keep until all callers handle errors */ } void device_add_disk(struct device *parent, struct gendisk *disk, From patchwork Wed Jan 26 08:35:34 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yu Kuai <yukuai3(a)huawei.com> X-Patchwork-Id: 152667 Return-Path: <yukuai3(a)huawei.com> Received: from dggems702-chm.china.huawei.com (10.3.19.179) by dggems702-chm.china.huawei.com (10.3.19.179) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21 via Mailbox Transport; Wed, 26 Jan 2022 16:25:01 +0800 Received: from kwepemm600009.china.huawei.com (7.193.23.164) by dggems702-chm.china.huawei.com (10.3.19.179) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:25:01 +0800 Received: from huawei.com (10.175.127.227) by kwepemm600009.china.huawei.com (7.193.23.164) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Wed, 26 Jan 2022 16:24:59 +0800 From: Yu Kuai <yukuai3(a)huawei.com> To: <zhengzengkai(a)huawei.com>, <xiexiuqi(a)huawei.com>, <patchwork(a)huawei.com> CC: <yukuai3(a)huawei.com>, <yi.zhang(a)huawei.com>, <houtao1(a)huawei.com>, <chenxiaosong2(a)huawei.com>, <chengzhihao1(a)huawei.com>, <libaokun1(a)huawei.com>, <luomeng12(a)huawei.com>, <yanaijie(a)huawei.com>, <yangerkun(a)huawei.com>, <yebin10(a)huawei.com>, <yuyufen(a)huawei.com>, <zhangxiaoxu5(a)huawei.com>, <zhengbin13(a)huawei.com>, <koulihong(a)huawei.com>, <qiulaibin(a)huawei.com>, <zhengliang6(a)huawei.com> Subject: [PATCH OLK-5.10 12/12] sd: don't mess with SD_MINORS for CONFIG_DEBUG_BLOCK_EXT_DEVT Date: Wed, 26 Jan 2022 16:35:34 +0800 Message-ID: <20220126083534.4016012-13-yukuai3(a)huawei.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220126083534.4016012-1-yukuai3(a)huawei.com> References: <20220126083534.4016012-1-yukuai3(a)huawei.com> Content-Type: text/plain X-MS-Exchange-Organization-Network-Message-Id: a409ac94-39e4-47fd-25f8-08d9e0a55871 X-MS-Exchange-Organization-AuthSource: kwepemm600009.china.huawei.com X-MS-Exchange-Organization-AuthAs: Internal X-MS-Exchange-Organization-AuthMechanism: 07 X-Originating-IP: [10.175.127.227] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemm600009.china.huawei.com (7.193.23.164) X-MS-Exchange-Transport-EndToEndLatency: 00:00:01.7893204 X-MS-Exchange-Processed-By-BccFoldering: 15.01.2308.021 MIME-Version: 1.0 From: Christoph Hellwig <hch(a)lst.de> mainline inclusion from mainline-v5.14-rc2 commit 7fef2edf7cc753b51f7ccc74993971b0a9c81eca category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4SA9G --------------------------- No need to give up the original sd minor even with this option, and if we did we'd also need to fix the number of minors for this configuration to actually work. Fixes: 7c3f828b522b0 ("block: refactor device number setup in __device_add_disk") Reported-by: Guenter Roeck <linux(a)roeck-us.net> Signed-off-by: Christoph Hellwig <hch(a)lst.de> Tested-by: Guenter Roeck <linux(a)roeck-us.net> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> Signed-off-by: Yu Kuai <yukuai3(a)huawei.com> --- drivers/scsi/sd.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index db7166fd05e1..2dfa5a34b048 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -98,11 +98,7 @@ MODULE_ALIAS_SCSI_DEVICE(TYPE_MOD); MODULE_ALIAS_SCSI_DEVICE(TYPE_RBC); MODULE_ALIAS_SCSI_DEVICE(TYPE_ZBC); -#if !defined(CONFIG_DEBUG_BLOCK_EXT_DEVT) #define SD_MINORS 16 -#else -#define SD_MINORS 0 -#endif static void sd_config_discard(struct scsi_disk *, unsigned int); static void sd_config_write_same(struct scsi_disk *);

1 0

[PATCH openEuler-5.10] lib/iov_iter: initialize "flags" in new pipe_buffer
by Zheng Zengkai 08 Mar '22

08 Mar '22

From: Max Kellermann <max.kellermann(a)ionos.com> mainline inclusion from mainline-v5.17-rc6 commit 9d2231c5d74e13b2a0546fee6737ee4446017903 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4WUKP?from=project-issue CVE: CVE-2022-0847 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/l… -------------------------------- The functions copy_page_to_iter_pipe() and push_pipe() can both allocate a new pipe_buffer, but the "flags" member initializer is missing. Fixes: 241699cd72a8 ("new iov_iter flavour: pipe-backed") To: Alexander Viro <viro(a)zeniv.linux.org.uk> To: linux-fsdevel(a)vger.kernel.org To: linux-kernel(a)vger.kernel.org Cc: stable(a)vger.kernel.org Signed-off-by: Max Kellermann <max.kellermann(a)ionos.com> Signed-off-by: Al Viro <viro(a)zeniv.linux.org.uk> Signed-off-by: Zhihao Cheng <chengzhihao1(a)huawei.com> Reviewed-by: Zhang Yi <yi.zhang(a)huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> --- lib/iov_iter.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/lib/iov_iter.c b/lib/iov_iter.c index b364231b5fc8..1b0a349fbcd9 100644 --- a/lib/iov_iter.c +++ b/lib/iov_iter.c @@ -407,6 +407,7 @@ static size_t copy_page_to_iter_pipe(struct page *page, size_t offset, size_t by return 0; buf->ops = &page_cache_pipe_buf_ops; + buf->flags = 0; get_page(page); buf->page = page; buf->offset = offset; @@ -543,6 +544,7 @@ static size_t push_pipe(struct iov_iter *i, size_t size, break; buf->ops = &default_pipe_buf_ops; + buf->flags = 0; buf->page = page; buf->offset = 0; buf->len = min_t(ssize_t, left, PAGE_SIZE); -- 2.20.1

1 0

[PATCH openEuler-1.0-LTS] hugetlbfs: fix a truncation issue in hugepages parameter
by Yang Yingliang 08 Mar '22

08 Mar '22

From: Liu Yuntao <liuyuntao10(a)huawei.com> mainline inclusion from mainline-v5.17-rc6 commit e79ce9832316e09529b212a21278d68240ccbf1f category: bugfix bugzilla: 186043 CVE: NA ------------------------------------------------- When we specify a large number for node in hugepages parameter, it may be parsed to another number due to truncation in this statement: node = tmp; For example, add following parameter in command line: hugepagesz=1G hugepages=4294967297:5 and kernel will allocate 5 hugepages for node 1 instead of ignoring it. I move the validation check earlier to fix this issue, and slightly simplifies the condition here. Link: https://lkml.kernel.org/r/20220209134018.8242-1-liuyuntao10@huawei.com Fixes: b5389086ad7be0 ("hugetlbfs: extend the definition of hugepages parameter to support node allocation") Signed-off-by: Liu Yuntao <liuyuntao10(a)huawei.com> Reviewed-by: Mike Kravetz <mike.kravetz(a)oracle.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> Signed-off-by: Liu Shixin <liushixin2(a)huawei.com> Reviewed-by: Kefeng Wang <wangkefeng.wang(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- mm/hugetlb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index f7e41390f3d8b..68cec97bbd066 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -3151,10 +3151,10 @@ static int __init hugetlb_nrpages_setup(char *s) pr_warn("HugeTLB: architecture can't support node specific alloc, ignoring!\n"); return 0; } + if (tmp >= nr_online_nodes) + goto invalid; node = tmp; p += count + 1; - if (node < 0 || node >= nr_online_nodes) - goto invalid; /* Parse hugepages */ if (sscanf(p, "%lu%n", &tmp, &count) != 1) goto invalid; -- 2.25.1

1 0

[PATCH OLK-5.10 v4 0/2]arm64: ras: copy_from_user scenario support uce kernel recovery
by Tong Tiangen 07 Mar '22

07 Mar '22

v3->v4: 1.remove uce_kernel_recovery.h 2.optimize do_sea() and arm64_process_kernel_sea(). 3.use pr_fmt instead of pr_uce. v2->v3: 1. put uce kernel recovery related processing into separate file. 2. fix the RAS error processing flow of do_sea(). 3. add CONFIG_ARM64_UCE_KERNEL_RECOVERY=y to openeuler_defconfig. 4. update commit msg. v1->v2: 1. update commit msg. 2. change copy_from_user return value. 3. change copy_from_user proc control bit. Tong Tiangen (2): arm64: ras: copy_from_user scenario support uce kernel recovery arm64: config: enable CONFIG_ARM64_UCE_KERNEL_RECOVERY Documentation/admin-guide/sysctl/kernel.rst | 17 ++ arch/arm64/Kconfig | 9 + arch/arm64/configs/openeuler_defconfig | 1 + arch/arm64/include/asm/exception.h | 13 ++ arch/arm64/lib/copy_from_user.S | 11 ++ arch/arm64/mm/Makefile | 2 + arch/arm64/mm/fault.c | 4 + arch/arm64/mm/uce_kernel_recovery.c | 198 ++++++++++++++++++++ 8 files changed, 255 insertions(+) create mode 100644 arch/arm64/mm/uce_kernel_recovery.c -- 2.18.0.huawei.25

2 3

[PATCH OLK-5.10 v3 0/3] arm64: ras: copy_from_user scenario support uce kernel recovery
by Tong Tiangen 07 Mar '22

07 Mar '22

v2->v3: 1. put uce kernel recovery related processing into separate file. 2. fix the RAS error processing flow of do_sea(). 3. add CONFIG_ARM64_UCE_KERNEL_RECOVERY=y to openeuler_defconfig. 4. update commit msg. v1->v2: 1. update commit msg. 2. change copy_from_user return value. 3. change copy_from_user proc control bit. Tong Tiangen (3): arm64: ras: add missing call apei_claim_sea in kernel mode arm64: ras: copy_from_user scenario support uce kernel recovery arm64: ras: enable CONFIG_ARM64_UCE_KERNEL_RECOVERY on arm64 Documentation/admin-guide/sysctl/kernel.rst | 17 ++ arch/arm64/Kconfig | 9 + arch/arm64/configs/openeuler_defconfig | 1 + arch/arm64/include/asm/uce_kernel_recovery.h | 33 ++++ arch/arm64/lib/copy_from_user.S | 11 ++ arch/arm64/mm/Makefile | 2 + arch/arm64/mm/fault.c | 7 +- arch/arm64/mm/uce_kernel_recovery.c | 193 +++++++++++++++++++ 8 files changed, 272 insertions(+), 1 deletion(-) create mode 100644 arch/arm64/include/asm/uce_kernel_recovery.h create mode 100644 arch/arm64/mm/uce_kernel_recovery.c -- 2.18.0.huawei.25

1 3

[PATCH openEuler-1.0-LTS] xhci: Fix a logic issue when display Zhaoxin XHCI root hub speed
by LeoLiuoc 07 Mar '22

07 Mar '22

Fix a logic issue when display Zhaoxin XHCI root hub speed. Signed-off-by: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> --- drivers/usb/host/xhci.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 8fabb8757..fe042cf13 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -5132,10 +5132,10 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) if (XHCI_EXT_PORT_PSIV(xhci->port_caps[j].psi[i]) >= 5) minor_rev = 1; } - if (minor_rev != 1) { - hcd->speed = HCD_USB3; - hcd->self.root_hub->speed = USB_SPEED_SUPER; - } + } + if (minor_rev != 1) { + hcd->speed = HCD_USB3; + hcd->self.root_hub->speed = USB_SPEED_SUPER; } } -- 2.20.1

1 1

openEuler-22.03-LTS 兼容性 KABI 白名单初稿预审
by Xie XiuQi 04 Mar '22

04 Mar '22

各位好，根据前期沟通，OSV、驱动兼容性SIG都对内核接口兼容性提出了诉求。根据前期沟通的信息，以 openEuler-20.03-LTS 驱动列表、兼容性KABI 白名单为基础，以如下几个方面为白名单移除或新增的输入，形成一份 openEuler-22.03-LTS 兼容性 KABI 白名单初稿，请大家评审。 ARM64 版本变更统计结果： +--------------------------------+-----------+------------------------------------------------------------------------+ | 列表名称 | 接口数量 | 说明 | +--------------------------------+-----------+------------------------------------------------------------------------+ | 4.19kabi_whitelist_aarch64 | 2463 | openEuler-20.03-LTS 白名单（基础） | +--------------------------------+-----------+------------------------------------------------------------------------+ | whitelist_remove_aarch64 | -164 | openEuler-22.03-LTS 不存在或被替代的接口 | +--------------------------------+-----------+------------------------------------------------------------------------+ | whitelist_add_aarch64 | 133 | openEuler-20.03-LTS 版本演进新增接口、openEuler-22.03-LTS 新增替代接口 | +--------------------------------+-----------+------------------------------------------------------------------------+ | nvidia.ko、nvidia_vgpu_vfio.ko | 18 | nvidia.ko、nvidia_vgpu_vfio.ko 兼容诉求新增接口 | +--------------------------------+-----------+------------------------------------------------------------------------+ | 4.19rpm_add_aarch64 | 97 | openEuler-20.03-LTS 第三方驱动 rpm 新增接口 | +--------------------------------+-----------+------------------------------------------------------------------------+ | 5.10ko_add_aarch64 | 373 | openEuler-22.03-LTS 自带驱动 ko 新增接口 | +--------------------------------+-----------+------------------------------------------------------------------------+ | redhat-4.18.0-358.el8 | 4 | redhat-4.18.0-358.el8 白名单新增接口 | +--------------------------------+-----------+------------------------------------------------------------------------+ | summary_add_aarch64 | 515 | 以上输入、除去重复的、新增接口汇总 | +--------------------------------+-----------+------------------------------------------------------------------------+ | 5.10kabi_whitelist_aarch64 | 2814 | openEuler-22.03-LTS 白名单初稿（2463-164+515） | +--------------------------------+-----------+------------------------------------------------------------------------+ X86 版本变更统计结果： +--------------------------------+-----------+------------------------------------------------------------------------+ | 列表名称 | 接口数量 | 说明 | +--------------------------------+-----------+------------------------------------------------------------------------+ | 4.19kabi_whitelist_x86_64 | 2777 | openEuler-20.03-LTS 白名单（基础） | +--------------------------------+-----------+------------------------------------------------------------------------+ | whitelist_remove_x86_64 | -168 | openEuler-22.03-LTS 不存在或被替代的接口 | +--------------------------------+-----------+------------------------------------------------------------------------+ | whitelist_add_x86_64 | 130 | openEuler-20.03-LTS 版本演进新增接口、openEuler-22.03-LTS 新增替代接口 | +--------------------------------+-----------+------------------------------------------------------------------------+ | nvidia.ko、nvidia_vgpu_vfio.ko | 17 | nvidia.ko、nvidia_vgpu_vfio.ko 兼容诉求新增接口 | +--------------------------------+-----------+------------------------------------------------------------------------+ | 4.19rpm_add_x86_64 | 83 | openEuler-20.03-LTS 第三方驱动 rpm 新增接口 | +--------------------------------+-----------+------------------------------------------------------------------------+ | 5.10ko_add_x86_64 | 422 | openEuler-22.03-LTS 自带驱动 ko 新增接口 | +--------------------------------+-----------+------------------------------------------------------------------------+ | redhat-4.18.0-358.el8 | 4 | redhat-4.18.0-358.el8 白名单新增接口 | +--------------------------------+-----------+------------------------------------------------------------------------+ | summary_add_x86_64 | 562 | 以上输入、除去重复的、新增接口汇总 | +--------------------------------+-----------+------------------------------------------------------------------------+ | 5.10kabi_whitelist_x86_64 | 3171 | openEuler-22.03-LTS 白名单初稿（2777-168+562） | +--------------------------------+-----------+------------------------------------------------------------------------+ KABI (Kernel Application Binary Interface) 兼容，即内核与驱动的二进制兼容。就是驱动不用重新编译，就可以在新内核上安装使用。如果驱动用到的接口都是兼容的，那么驱动就可以不用重新编译就可以在新版本安装使用。上游社区考虑到便于开发、和防止架构腐化，不考虑 KABI 的兼容性。业界的 KABI 兼容都是由 Linux 发行版来做的，而且兼容的接口越多、维护时间越长，维护成本也越高。 openEuler 通过多次与下游OSV和驱动团队交流，根据下游反馈的诉求， openEuler-22.03-LTS 版本，提供一定范围的 KABI 兼容能力，目的是使常用的板卡驱动，在 openEuler-22.03-LTS 版本能兼容。 KABI 兼容列表白名单的主要输入是驱动（ko），我们根据下游的反馈，在 openEuler-20.03-LTS 驱动列表的基础上，新增nvidia.ko、nvidia_vgpu_vfio.ko，作为兼容的目标，得到驱动列表如下。 ARM64 版本拟兼容的驱动（ko）列表： amdgpu.ko bnx2.ko bnx2x.ko bnxt_en.ko bnxt_re.ko hclge.ko hclgevf.ko hifc.ko hinic.ko hnae3.ko hns3.ko i40e.ko ice.ko igb.ko ixgbe.ko ixgbevf.ko lpfc.ko megaraid_sas.ko mlx4_core.ko mlx4_ib.ko mlx5_core.ko mlx5_ib.ko mpt3sas.ko nvidia.ko nvidia_vgpu_vfio.ko nouveau.ko nvme.ko qed.ko qede.ko qla2xxx.ko smartpqi.ko tg3.ko txgbe.ko X86 版本拟兼容的驱动（ko）列表： amdgpu.ko bnx2.ko bnx2x.ko bnxt_en.ko bnxt_re.ko hifc.ko hinic.ko i40e.ko ice.ko igb.ko ixgbe.ko ixgbevf.ko lpfc.ko megaraid_sas.ko mlx4_core.ko mlx4_ib.ko mlx5_core.ko mlx5_ib.ko mpt3sas.ko nvidia.ko nvidia_vgpu_vfio.ko nouveau.ko nvme.ko qed.ko qede.ko qla2xxx.ko smartpqi.ko tg3.ko txgbe.ko 重要的说明和提示： 1. 上述列表中多数驱动，还没有针对 openEuler-22.03-LTS 的正式二进制版本，因此我们根据开源的版本或相近的版本收集了相关 KABI 列表，可能与板卡厂商的最终发布的版本存在少量差异。下游OSV或驱动团队如果发现有接口没在给出的列表中的，可以在评审过程中提出来。 2. 如果有新增 KABI 兼容性的诉求，需要给出需要兼容的 KABI 接口名称，以及使用到的驱动名称，以方便评估。 3. 评审反馈，可以在 issue 中反馈，https://gitee.com/openeuler/kernel/issues/I4U6NZ 也可以通过回复邮件反馈。 4. 收集评审反馈信息的时间为1周，截止到下周五（3月11日）下午17:00. --- openEuler kernel SIG， 2022-3-4 --- 附1：ARM64 平台 KABI 白名单列表初稿（2814个） acpi_bus_get_device acpi_check_dsm acpi_dev_found acpi_disabled acpi_dma_configure_id acpi_evaluate_dsm acpi_evaluate_object acpi_format_exception acpi_gbl_FADT acpi_get_devices acpi_get_handle acpi_get_name acpi_get_table acpi_gsi_to_irq acpi_handle_printk acpi_has_method acpi_lid_open acpi_match_device __acpi_node_get_property_reference acpi_os_map_memory acpi_os_unmap_generic_address acpi_os_unmap_memory acpi_register_gsi acpi_unregister_gsi add_timer add_uevent_var add_wait_queue add_wait_queue_exclusive admin_timeout alloc_chrdev_region alloc_cpu_rmap __alloc_disk_node alloc_etherdev_mqs alloc_netdev_mqs __alloc_pages alloc_pages __alloc_percpu __alloc_percpu_gfp __alloc_skb alloc_workqueue anon_inode_getfd anon_inode_getfile apei_hest_parse apei_map_generic_address apei_read __arch_clear_user __arch_copy_from_user __arch_copy_in_user __arch_copy_to_user arch_timer_read_counter arch_wb_cache_pmem arm64_const_caps_ready arm64_use_ng_mappings arp_tbl async_schedule_node ata_link_next ata_tf_to_fis _atomic_dec_and_lock atomic_notifier_call_chain atomic_notifier_chain_register atomic_notifier_chain_unregister attribute_container_find_class_device autoremove_wake_function backlight_device_register backlight_device_set_brightness backlight_device_unregister backlight_force_update bdevname bdev_read_only bdget_disk _bin2bcd bin2hex bio_add_page bio_alloc_bioset bio_associate_blkg bio_chain bio_clone_fast bio_devname bio_endio bio_free_pages bio_init bio_integrity_add_page bio_integrity_alloc bio_put bioset_exit bioset_init __bitmap_and __bitmap_andnot __bitmap_clear __bitmap_complement __bitmap_equal bitmap_find_free_region bitmap_find_next_zero_area_off bitmap_free bitmap_from_arr32 __bitmap_intersects __bitmap_or bitmap_parse bitmap_parselist bitmap_print_to_pagebuf bitmap_release_region __bitmap_set __bitmap_subset __bitmap_weight __bitmap_xor bitmap_zalloc bit_wait blk_alloc_queue blk_check_plugged blk_cleanup_queue blkdev_get_by_path __blkdev_issue_discard blkdev_issue_discard blkdev_issue_flush blkdev_issue_write_same __blkdev_issue_zeroout blkdev_issue_zeroout blkdev_put blk_execute_rq blk_execute_rq_nowait blk_finish_plug blk_freeze_queue_start blk_get_queue blk_get_request blk_integrity_register blk_integrity_unregister blk_mq_alloc_request blk_mq_alloc_request_hctx blk_mq_alloc_tag_set blk_mq_complete_request blk_mq_complete_request_remote blk_mq_end_request blk_mq_free_request blk_mq_free_tag_set blk_mq_freeze_queue blk_mq_freeze_queue_wait blk_mq_freeze_queue_wait_timeout blk_mq_init_queue blk_mq_map_queues blk_mq_pci_map_queues blk_mq_quiesce_queue blk_mq_rdma_map_queues blk_mq_requeue_request blk_mq_run_hw_queues blk_mq_start_request blk_mq_tagset_busy_iter blk_mq_tagset_wait_completed_request blk_mq_tag_to_rq blk_mq_unfreeze_queue blk_mq_unique_tag blk_mq_unquiesce_queue blk_mq_update_nr_hw_queues blk_poll blk_put_queue blk_put_request blk_queue_bounce_limit blk_queue_chunk_sectors blk_queue_dma_alignment blk_queue_flag_clear blk_queue_flag_set blk_queue_flag_test_and_set blk_queue_io_min blk_queue_io_opt blk_queue_logical_block_size blk_queue_max_discard_sectors blk_queue_max_discard_segments blk_queue_max_hw_sectors blk_queue_max_segments blk_queue_max_segment_size blk_queue_max_write_same_sectors blk_queue_max_write_zeroes_sectors blk_queue_physical_block_size blk_queue_rq_timeout blk_queue_segment_boundary blk_queue_split blk_queue_update_dma_alignment blk_queue_virt_boundary blk_queue_write_cache blk_rq_append_bio blk_rq_count_integrity_sg blk_rq_map_integrity_sg blk_rq_map_kern __blk_rq_map_sg blk_rq_map_user blk_rq_map_user_iov blk_rq_unmap_user blk_set_queue_dying blk_set_stacking_limits blk_stack_limits blk_start_plug blk_status_to_errno blk_verify_command blocking_notifier_call_chain blocking_notifier_chain_register blocking_notifier_chain_unregister bpf_dispatcher_xdp_func bpf_prog_add bpf_prog_inc bpf_prog_put bpf_prog_sub bpf_stats_enabled_key bpf_trace_run1 bpf_trace_run2 bpf_trace_run3 bpf_trace_run4 bpf_trace_run5 bpf_trace_run6 bpf_trace_run9 bpf_warn_invalid_xdp_action bsg_job_done btree_destroy btree_geo32 btree_geo64 btree_get_prev btree_init btree_insert btree_last btree_lookup btree_remove btree_update build_skb bus_find_device bus_register bus_unregister cache_line_size call_netdevice_notifiers call_rcu call_srcu call_usermodehelper cancel_delayed_work cancel_delayed_work_sync cancel_work_sync can_do_mlock capable cdev_add cdev_alloc cdev_del cdev_device_add cdev_device_del cdev_init cgroup_attach_task_all __check_object_size class_compat_create_link class_compat_register class_compat_remove_link class_compat_unregister __class_create class_create_file_ns class_destroy class_find_device class_for_each_device __class_register class_unregister cleanup_srcu_struct clk_disable clk_enable clk_get_rate clk_prepare clk_unprepare clk_unregister __close_fd commit_creds compat_alloc_user_space complete complete_all complete_and_exit completion_done component_add component_del __cond_resched configfs_register_subsystem configfs_remove_default_groups configfs_unregister_subsystem config_group_init config_group_init_type_name config_item_put console_lock console_unlock __const_udelay consume_skb _copy_from_iter _copy_to_iter cper_estatus_check cper_estatus_check_header cper_estatus_print __cpu_active_mask cpu_all_bits cpu_bit_bitmap cpufreq_quick_get __cpuhp_remove_state __cpuhp_setup_state __cpuhp_state_add_instance __cpuhp_state_remove_instance cpu_hwcap_keys cpu_hwcaps cpumask_local_spread cpumask_next cpumask_next_and cpumask_next_wrap cpu_number __cpu_online_mask __cpu_possible_mask __cpu_present_mask cpus_read_lock cpus_read_unlock crc32c __crc32c_le_shift crc32_le crc8 crc8_populate_msb crc_t10dif crypto_ahash_digest crypto_ahash_final crypto_ahash_setkey crypto_alloc_ahash crypto_alloc_akcipher crypto_alloc_shash crypto_destroy_tfm crypto_inc __crypto_memneq crypto_register_akcipher crypto_register_alg crypto_register_kpp crypto_register_shash crypto_register_skciphers crypto_shash_final crypto_shash_update crypto_unregister_akcipher crypto_unregister_alg crypto_unregister_kpp crypto_unregister_shash crypto_unregister_skciphers csum_ipv6_magic csum_partial csum_tcpudp_nofold _ctype dcb_getapp dcb_ieee_delapp dcb_ieee_getapp_mask dcb_ieee_setapp dcbnl_cee_notify dcbnl_ieee_notify dcb_setapp debugfs_attr_read debugfs_attr_write debugfs_create_atomic_t debugfs_create_bool debugfs_create_dir debugfs_create_file debugfs_create_file_unsafe debugfs_create_regset32 debugfs_create_symlink debugfs_create_u16 debugfs_create_u32 debugfs_create_u64 debugfs_create_u8 debugfs_initialized debugfs_lookup debugfs_remove default_llseek default_wake_function __delay delayed_work_timer_fn del_gendisk del_timer del_timer_sync destroy_workqueue dev_add_pack dev_addr_add dev_addr_del dev_alloc_name dev_attr_phy_event_threshold dev_base_lock dev_change_flags dev_close _dev_crit dev_disable_lro dev_driver_string _dev_emerg _dev_err __dev_get_by_index dev_get_by_index dev_get_by_index_rcu __dev_get_by_name dev_get_by_name dev_get_flags dev_get_iflink dev_get_stats device_add device_add_disk device_create device_create_file device_create_with_groups device_del device_destroy device_for_each_child device_get_mac_address device_get_next_child_node device_initialize device_link_add device_property_present device_property_read_string device_property_read_string_array device_property_read_u32_array device_property_read_u8_array device_register device_release_driver device_remove_file device_remove_file_self device_rename device_reprobe device_set_wakeup_capable device_set_wakeup_enable device_unregister device_wakeup_disable _dev_info __dev_kfree_skb_any __dev_kfree_skb_irq devlink_alloc devlink_flash_update_begin_notify devlink_flash_update_end_notify devlink_flash_update_status_notify devlink_fmsg_arr_pair_nest_end devlink_fmsg_arr_pair_nest_start devlink_fmsg_binary_pair_nest_end devlink_fmsg_binary_pair_nest_start devlink_fmsg_binary_pair_put devlink_fmsg_binary_put devlink_fmsg_bool_pair_put devlink_fmsg_obj_nest_end devlink_fmsg_obj_nest_start devlink_fmsg_pair_nest_end devlink_fmsg_pair_nest_start devlink_fmsg_string_pair_put devlink_fmsg_u32_pair_put devlink_fmsg_u32_put devlink_fmsg_u64_pair_put devlink_fmsg_u8_pair_put devlink_free devlink_health_report devlink_health_reporter_create devlink_health_reporter_destroy devlink_health_reporter_priv devlink_health_reporter_recovery_done devlink_health_reporter_state_update devlink_info_board_serial_number_put devlink_info_driver_name_put devlink_info_serial_number_put devlink_info_version_fixed_put devlink_info_version_running_put devlink_info_version_stored_put devlink_net devlink_param_driverinit_value_get devlink_param_driverinit_value_set devlink_params_publish devlink_params_register devlink_params_unpublish devlink_params_unregister devlink_param_value_changed devlink_port_attrs_set devlink_port_health_reporter_create devlink_port_health_reporter_destroy devlink_port_params_register devlink_port_params_unregister devlink_port_register devlink_port_type_clear devlink_port_type_eth_set devlink_port_type_ib_set devlink_port_unregister devlink_region_create devlink_region_destroy devlink_region_snapshot_create devlink_region_snapshot_id_get devlink_region_snapshot_id_put devlink_register devlink_reload_disable devlink_reload_enable devlink_remote_reload_actions_performed devlink_unregister devm_add_action dev_mc_add dev_mc_add_excl dev_mc_del devm_clk_get __devm_drm_dev_alloc devm_free_irq devm_hwmon_device_register_with_groups devm_ioremap devm_ioremap_resource devm_ioremap_wc devm_iounmap devm_kfree devm_kmalloc devm_kmemdup devm_mdiobus_alloc_size devm_request_threaded_irq _dev_notice dev_open dev_pm_qos_expose_latency_tolerance dev_pm_qos_hide_latency_tolerance dev_pm_qos_update_user_latency_tolerance dev_printk dev_printk_emit dev_queue_xmit dev_remove_pack dev_set_mac_address dev_set_mtu dev_set_name dev_set_promiscuity dev_trans_start dev_uc_add dev_uc_add_excl dev_uc_del _dev_warn d_find_alias disable_irq disable_irq_nosync disk_end_io_acct disk_start_io_acct dma_alloc_attrs dma_buf_dynamic_attach dma_buf_get dma_buf_map_attachment dma_buf_move_notify dma_buf_pin dma_buf_put dma_buf_unmap_attachment dma_buf_unpin dma_fence_add_callback dma_fence_array_create dma_fence_context_alloc dma_fence_free dma_fence_get_status dma_fence_get_stub dma_fence_init dma_fence_release dma_fence_signal dma_fence_signal_locked dma_fence_wait_any_timeout dma_fence_wait_timeout dma_free_attrs dma_get_required_mask dma_get_sgtable_attrs dmam_alloc_attrs dma_map_page_attrs dma_map_resource dma_map_sg_attrs dma_max_mapping_size dmam_free_coherent dma_mmap_attrs dmam_pool_create dma_pool_alloc dma_pool_create dma_pool_destroy dma_pool_free dma_resv_add_excl_fence dma_resv_add_shared_fence dma_resv_get_fences_rcu dma_resv_reserve_shared dma_resv_test_signaled_rcu dma_resv_wait_timeout_rcu dma_set_coherent_mask dma_set_mask dma_sync_single_for_cpu dma_sync_single_for_device dma_unmap_page_attrs dma_unmap_resource dma_unmap_sg_attrs dmi_check_system dmi_get_system_info dmi_match __do_once_done __do_once_start do_wait_intr down downgrade_write down_interruptible down_read down_read_killable down_read_trylock down_timeout down_trylock down_write down_write_killable down_write_trylock d_path dput dql_completed dql_reset drain_workqueue driver_create_file driver_for_each_device driver_register driver_remove_file driver_unregister drm_add_edid_modes drm_add_modes_noedid drm_atomic_add_affected_connectors drm_atomic_add_affected_planes drm_atomic_commit drm_atomic_get_connector_state drm_atomic_get_crtc_state drm_atomic_get_plane_state drm_atomic_get_private_obj_state drm_atomic_helper_async_check drm_atomic_helper_calc_timestamping_constants drm_atomic_helper_check drm_atomic_helper_check_modeset drm_atomic_helper_check_planes drm_atomic_helper_check_plane_state drm_atomic_helper_cleanup_planes drm_atomic_helper_commit drm_atomic_helper_commit_cleanup_done drm_atomic_helper_commit_hw_done __drm_atomic_helper_connector_destroy_state drm_atomic_helper_connector_destroy_state __drm_atomic_helper_connector_duplicate_state drm_atomic_helper_connector_duplicate_state __drm_atomic_helper_connector_reset drm_atomic_helper_connector_reset __drm_atomic_helper_crtc_destroy_state drm_atomic_helper_crtc_destroy_state __drm_atomic_helper_crtc_duplicate_state drm_atomic_helper_crtc_duplicate_state __drm_atomic_helper_crtc_reset drm_atomic_helper_crtc_reset drm_atomic_helper_disable_plane drm_atomic_helper_legacy_gamma_set drm_atomic_helper_page_flip __drm_atomic_helper_plane_destroy_state drm_atomic_helper_plane_destroy_state __drm_atomic_helper_plane_duplicate_state drm_atomic_helper_plane_duplicate_state __drm_atomic_helper_plane_reset drm_atomic_helper_plane_reset drm_atomic_helper_prepare_planes __drm_atomic_helper_private_obj_duplicate_state drm_atomic_helper_resume drm_atomic_helper_set_config drm_atomic_helper_setup_commit drm_atomic_helper_shutdown drm_atomic_helper_suspend drm_atomic_helper_swap_state drm_atomic_helper_update_legacy_modeset_state drm_atomic_helper_update_plane drm_atomic_helper_wait_for_dependencies drm_atomic_helper_wait_for_fences drm_atomic_helper_wait_for_flip_done drm_atomic_private_obj_fini drm_atomic_private_obj_init drm_atomic_state_alloc drm_atomic_state_clear drm_atomic_state_default_clear drm_atomic_state_default_release __drm_atomic_state_free drm_atomic_state_init drm_compat_ioctl drm_connector_attach_dp_subconnector_property drm_connector_attach_encoder drm_connector_attach_max_bpc_property drm_connector_attach_vrr_capable_property drm_connector_cleanup drm_connector_init drm_connector_init_with_ddc drm_connector_list_iter_begin drm_connector_list_iter_end drm_connector_list_iter_next drm_connector_register drm_connector_set_path_property drm_connector_set_vrr_capable_property drm_connector_unregister drm_connector_update_edid_property drm_crtc_accurate_vblank_count drm_crtc_add_crc_entry drm_crtc_arm_vblank_event drm_crtc_cleanup __drm_crtc_commit_free drm_crtc_enable_color_mgmt drm_crtc_from_index drm_crtc_handle_vblank drm_crtc_helper_set_config drm_crtc_helper_set_mode drm_crtc_init drm_crtc_init_with_planes drm_crtc_send_vblank_event drm_crtc_vblank_count drm_crtc_vblank_get drm_crtc_vblank_helper_get_vblank_timestamp drm_crtc_vblank_helper_get_vblank_timestamp_internal drm_crtc_vblank_off drm_crtc_vblank_on drm_crtc_vblank_put drm_cvt_mode __drm_dbg __drm_debug drm_debugfs_create_files drm_detect_hdmi_monitor drm_detect_monitor_audio drm_dev_alloc drm_dev_dbg drm_dev_enter drm_dev_exit drm_dev_printk drm_dev_put drm_dev_register drm_dev_unplug drm_dev_unregister drm_dp_atomic_find_vcpi_slots drm_dp_atomic_release_vcpi_slots drm_dp_aux_init drm_dp_aux_register drm_dp_aux_unregister drm_dp_bw_code_to_link_rate drm_dp_calc_pbn_mode drm_dp_channel_eq_ok drm_dp_check_act_status drm_dp_clock_recovery_ok drm_dp_downstream_max_dotclock drm_dp_dpcd_read drm_dp_dpcd_read_link_status drm_dp_dpcd_write drm_dp_find_vcpi_slots drm_dp_get_adjust_request_pre_emphasis drm_dp_get_adjust_request_voltage drm_dp_link_rate_to_bw_code drm_dp_link_train_channel_eq_delay drm_dp_link_train_clock_recovery_delay drm_dp_mst_allocate_vcpi drm_dp_mst_atomic_check drm_dp_mst_connector_early_unregister drm_dp_mst_connector_late_register drm_dp_mst_deallocate_vcpi drm_dp_mst_detect_port drm_dp_mst_dump_topology drm_dp_mst_get_edid drm_dp_mst_get_port_malloc drm_dp_mst_hpd_irq drm_dp_mst_put_port_malloc drm_dp_mst_reset_vcpi_slots drm_dp_mst_topology_mgr_destroy drm_dp_mst_topology_mgr_init drm_dp_mst_topology_mgr_resume drm_dp_mst_topology_mgr_set_mst drm_dp_mst_topology_mgr_suspend drm_dp_read_desc drm_dp_read_downstream_info drm_dp_read_dpcd_caps drm_dp_read_mst_cap drm_dp_read_sink_count drm_dp_read_sink_count_cap drm_dp_send_real_edid_checksum drm_dp_set_subconnector_property drm_dp_start_crc drm_dp_stop_crc drm_dp_update_payload_part1 drm_dp_update_payload_part2 drm_edid_header_is_valid drm_edid_is_valid drm_edid_to_sad drm_edid_to_speaker_allocation drm_encoder_cleanup drm_encoder_init __drm_err drm_fb_helper_alloc_fbi drm_fb_helper_blank drm_fb_helper_cfb_copyarea drm_fb_helper_cfb_fillrect drm_fb_helper_cfb_imageblit drm_fb_helper_check_var drm_fb_helper_debug_enter drm_fb_helper_debug_leave drm_fb_helper_fill_info drm_fb_helper_fini drm_fb_helper_hotplug_event drm_fb_helper_init drm_fb_helper_initial_config drm_fb_helper_ioctl drm_fb_helper_lastclose drm_fb_helper_output_poll_changed drm_fb_helper_pan_display drm_fb_helper_prepare drm_fb_helper_setcmap drm_fb_helper_set_par drm_fb_helper_set_suspend drm_fb_helper_set_suspend_unlocked drm_fb_helper_sys_copyarea drm_fb_helper_sys_fillrect drm_fb_helper_sys_imageblit drm_fb_helper_unregister_fbi drm_format_info drm_framebuffer_cleanup drm_framebuffer_init drm_framebuffer_unregister_private drm_gem_dmabuf_mmap drm_gem_dmabuf_release drm_gem_dmabuf_vmap drm_gem_dmabuf_vunmap drm_gem_fb_create_handle drm_gem_fb_destroy drm_gem_handle_create drm_gem_handle_delete drm_gem_map_attach drm_gem_map_detach drm_gem_map_dma_buf drm_gem_object_free drm_gem_object_init drm_gem_object_lookup drm_gem_object_release drm_gem_prime_export drm_gem_prime_fd_to_handle drm_gem_prime_handle_to_fd drm_gem_prime_import drm_gem_private_object_init drm_gem_unmap_dma_buf drm_get_connector_status_name drm_get_edid drm_get_edid_switcheroo drm_get_format_info drm_get_format_name drm_handle_vblank drm_hdmi_avi_infoframe_from_display_mode drm_hdmi_infoframe_set_hdr_metadata drm_hdmi_vendor_infoframe_from_display_mode drm_helper_connector_dpms drm_helper_disable_unused_functions drm_helper_force_disable_all drm_helper_hpd_irq_event drm_helper_mode_fill_fb_struct drm_helper_probe_detect drm_helper_probe_single_connector_modes drm_helper_resume_force_mode drm_i2c_encoder_detect drm_i2c_encoder_init drm_i2c_encoder_mode_fixup drm_i2c_encoder_restore drm_i2c_encoder_save drm_invalid_op drm_ioctl drm_irq_install drm_irq_uninstall drm_is_current_master drm_kms_helper_hotplug_event drm_kms_helper_is_poll_worker drm_kms_helper_poll_disable drm_kms_helper_poll_enable drm_kms_helper_poll_fini drm_kms_helper_poll_init drm_match_cea_mode drm_mm_init drm_mm_insert_node_in_range drmm_mode_config_init drm_mm_print drm_mm_remove_node drm_mm_takedown drm_mode_config_cleanup drm_mode_config_reset drm_mode_copy drm_mode_create_dvi_i_properties drm_mode_create_scaling_mode_property drm_mode_create_tv_properties drm_mode_crtc_set_gamma_size drm_mode_debug_printmodeline drm_mode_destroy drm_mode_duplicate drm_mode_equal drm_mode_get_hv_timing drm_mode_is_420_also drm_mode_is_420_only drm_mode_legacy_fb_format drm_mode_object_find drm_mode_object_put drm_mode_probed_add drm_modeset_acquire_fini drm_modeset_acquire_init drm_modeset_backoff drm_mode_set_crtcinfo drm_modeset_drop_locks drm_modeset_lock drm_modeset_lock_all drm_modeset_lock_all_ctx drm_modeset_lock_single_interruptible drm_mode_set_name drm_modeset_unlock drm_modeset_unlock_all drm_mode_sort drm_mode_vrefresh drm_need_swiotlb drm_object_attach_property drm_object_property_set_value drm_open drm_plane_cleanup drm_plane_create_alpha_property drm_plane_create_blend_mode_property drm_plane_create_color_properties drm_plane_create_rotation_property drm_plane_create_zpos_immutable_property drm_plane_create_zpos_property drm_plane_force_disable drm_plane_init drm_poll drm_primary_helper_destroy drm_primary_helper_funcs drm_prime_gem_destroy drm_prime_pages_to_sg drm_prime_sg_to_page_addr_arrays drm_printf __drm_printfn_seq_file drm_property_add_enum drm_property_create drm_property_create_enum drm_property_create_range __drm_puts_seq_file drm_read drm_release drm_scdc_read drm_scdc_write drm_sched_dependency_optimized drm_sched_entity_destroy drm_sched_entity_fini drm_sched_entity_flush drm_sched_entity_init drm_sched_entity_modify_sched drm_sched_entity_push_job drm_sched_entity_set_priority drm_sched_fault drm_sched_fini drm_sched_increase_karma drm_sched_init drm_sched_job_cleanup drm_sched_job_init drm_sched_pick_best drm_sched_resubmit_jobs drm_sched_start drm_sched_stop drm_sched_suspend_timeout drm_send_event_locked drm_syncobj_add_point drm_syncobj_create drm_syncobj_find drm_syncobj_find_fence drm_syncobj_free drm_syncobj_get_fd drm_syncobj_get_handle drm_syncobj_replace_fence drm_universal_plane_init drm_vblank_init drm_vblank_work_cancel_sync drm_vblank_work_init drm_vblank_work_schedule drm_vma_node_allow drm_vma_node_is_allowed drm_vma_node_revoke dst_init dst_release dump_stack __dynamic_dev_dbg __dynamic_ibdev_dbg __dynamic_netdev_dbg __dynamic_pr_debug elfcorehdr_addr emergency_restart empty_zero_page enable_irq errno_to_blk_status ether_setup eth_get_headlen eth_mac_addr eth_platform_get_mac_address ethtool_convert_legacy_u32_to_link_mode ethtool_convert_link_mode_to_legacy_u32 __ethtool_get_link_ksettings ethtool_intersect_link_masks ethtool_op_get_link ethtool_op_get_ts_info ethtool_rx_flow_rule_create ethtool_rx_flow_rule_destroy eth_type_trans eth_validate_addr eventfd_ctx_fdget eventfd_ctx_fileget eventfd_ctx_put eventfd_fget eventfd_signal event_triggers_call fasync_helper fc_attach_transport fc_block_scsi_eh fc_eh_timed_out fc_get_event_number fc_host_fpin_rcv fc_host_post_event fc_host_post_vendor_event fc_release_transport fc_remote_port_add fc_remote_port_delete fc_remote_port_rolechg fc_remove_host fc_vport_create fc_vport_terminate __fdget fd_install fget __fib_lookup fib_table_lookup filemap_fault filp_close filp_open find_get_pid find_last_bit find_next_bit find_next_zero_bit find_pid_ns find_vma finish_wait firmware_request_nowarn fixed_size_llseek flow_block_cb_alloc flow_block_cb_lookup flow_block_cb_setup_simple flow_indr_block_cb_alloc flow_indr_dev_register flow_indr_dev_unregister flow_keys_basic_dissector flow_keys_dissector flow_resources_add flow_resources_alloc flow_rule_match_basic flow_rule_match_control flow_rule_match_enc_ipv4_addrs flow_rule_match_enc_keyid flow_rule_match_enc_ports flow_rule_match_eth_addrs flow_rule_match_icmp flow_rule_match_ipv4_addrs flow_rule_match_ipv6_addrs flow_rule_match_ports flow_rule_match_vlan flush_delayed_work flush_signals flush_work flush_workqueue force_sig fortify_panic fput free_fib_info free_irq free_irq_cpu_rmap free_netdev __free_pages free_pages free_percpu from_kgid from_kgid_munged from_kuid from_kuid_munged fs_bio_set __f_setown full_name_hash fwnode_property_read_string fwnode_property_read_u32_array fwnode_property_read_u8_array gcd generate_random_uuid generic_file_llseek generic_handle_irq genlmsg_put genl_notify genl_register_family genl_unregister_family genphy_read_status genphy_restart_aneg gen_pool_add_owner gen_pool_alloc_algo_owner gen_pool_create gen_pool_destroy gen_pool_free_owner gen_pool_virt_to_phys get_cpu_idle_time get_cpu_idle_time_us get_cpu_iowait_time_us get_device __get_free_pages get_net_ns_by_fd get_phy_device get_pid_task get_random_bytes __get_task_comm get_task_mm get_task_pid get_unused_fd_flags get_user_pages get_user_pages_fast get_user_pages_longterm get_user_pages_remote get_zeroed_page gic_nonsecure_priorities gic_pmr_sync gre_add_protocol gre_del_protocol groups_alloc groups_free guid_parse handle_simple_irq hdmi_avi_infoframe_pack hdmi_drm_infoframe_pack_only hdmi_infoframe_pack hest_disable hex_to_bin hmm_range_fault hrtimer_cancel hrtimer_forward hrtimer_init hrtimer_start_range_ns hrtimer_try_to_cancel __hw_addr_sync_dev __hw_addr_unsync_dev hwmon_device_register hwmon_device_register_with_groups hwmon_device_register_with_info hwmon_device_unregister i2c_add_adapter i2c_add_numbered_adapter i2c_bit_add_bus i2c_bit_algo i2c_del_adapter i2c_generic_scl_recovery i2c_new_client_device i2c_recover_bus i2c_smbus_read_byte_data i2c_smbus_write_byte_data i2c_transfer i2c_unregister_device __ib_alloc_cq _ib_alloc_device __ib_alloc_pd ib_alloc_xrcd_user __ib_create_cq ib_create_qp ib_create_send_mad ib_create_srq_user ib_dealloc_device ib_dealloc_pd_user ib_dereg_mr_user ib_destroy_cq_user ib_destroy_qp_user ib_destroy_srq_user ibdev_err ib_device_get_by_netdev ib_device_put ib_device_set_netdev ibdev_info ibdev_warn ib_dispatch_event ib_drain_qp ib_event_msg ib_find_cached_pkey ib_free_cq ib_free_send_mad ib_get_cached_pkey ib_get_cached_port_state ib_get_eth_speed ib_get_gids_from_rdma_hdr ib_get_rdma_header_version ib_map_mr_sg ib_modify_qp ib_modify_qp_is_ok ib_mr_pool_destroy ib_mr_pool_get ib_mr_pool_init ib_mr_pool_put ib_post_send_mad ib_process_cq_direct ib_query_pkey ib_query_port ib_query_qp ib_register_client ib_register_device ib_register_mad_agent ib_sa_cancel_query ib_sa_guid_info_rec_query ib_sa_register_client ib_sa_unregister_client ib_set_device_ops ib_sg_to_pages ib_ud_header_init ib_ud_header_pack ib_ud_ip4_csum ib_umem_copy_from ib_umem_find_best_pgsz ib_umem_get ib_umem_odp_alloc_child ib_umem_odp_alloc_implicit ib_umem_odp_get ib_umem_odp_map_dma_and_lock ib_umem_odp_release ib_umem_odp_unmap_dma_pages ib_umem_release ib_unregister_client ib_unregister_device ib_unregister_device_queued ib_unregister_driver ib_unregister_mad_agent ib_uverbs_flow_resources_free ib_uverbs_get_ucontext_file ib_wc_status_msg __icmp_send icmpv6_send ida_alloc_range ida_destroy ida_free idr_alloc idr_alloc_cyclic idr_alloc_u32 idr_destroy idr_find idr_for_each idr_get_next idr_get_next_ul idr_preload idr_remove idr_replace igrab in4_pton in6_dev_finish_destroy in6_pton in_aton in_dev_finish_destroy in_egroup_p __inet6_lookup_established inet_addr_is_any inet_confirm_addr inet_get_local_port_range __inet_lookup_established inet_proto_csum_replace16 inet_proto_csum_replace4 inet_pton_with_scope in_group_p init_net __init_rwsem init_srcu_struct __init_swait_queue_head init_task init_timer_key init_uts_ns init_wait_entry __init_waitqueue_head input_close_device input_open_device input_register_handle input_register_handler input_unregister_handle input_unregister_handler interval_tree_insert interval_tree_iter_first interval_tree_iter_next interval_tree_remove int_to_scsilun iomem_resource iommu_get_domain_for_dev iommu_group_add_device iommu_group_alloc iommu_group_get iommu_group_id iommu_group_put iommu_group_remove_device iommu_iova_to_phys iommu_map iommu_unmap __ioremap ioremap_cache io_schedule io_schedule_timeout iounmap iov_iter_advance iov_iter_bvec iov_iter_init iov_iter_npages __iowrite32_copy __iowrite64_copy ip6_dst_hoplimit ip6_local_out ip6_route_output_flags ip_compute_csum ip_defrag __ip_dev_find ip_do_fragment ip_local_out ip_mc_dec_group ip_mc_inc_group ipmi_add_smi ipmi_create_user ipmi_destroy_user ipmi_free_recv_msg ipmi_poll_interface ipmi_request_settime ipmi_set_gets_events ipmi_set_my_address ipmi_smi_msg_received ipmi_unregister_smi ipmi_validate_addr ip_route_output_flow __ip_select_ident ip_send_check ip_set_get_byname ip_set_put_byindex ip_tos2prio ip_tunnel_get_stats64 iput __ipv6_addr_type ipv6_chk_addr ipv6_ext_hdr ipv6_find_hdr ipv6_mod_enabled ipv6_skip_exthdr ipv6_stub ip_vs_proto_name irq_cpu_rmap_add irq_create_mapping_affinity __irq_domain_add irq_domain_remove irq_find_mapping irq_get_irq_data irq_modify_status irq_poll_complete irq_poll_disable irq_poll_enable irq_poll_init irq_poll_sched irq_set_affinity_hint irq_set_affinity_notifier irq_set_chip_and_handler_name irq_to_desc is_acpi_data_node is_acpi_device_node iscsi_block_scsi_eh iscsi_block_session iscsi_boot_create_ethernet iscsi_boot_create_host_kset iscsi_boot_create_initiator iscsi_boot_create_target iscsi_boot_destroy_kset iscsi_complete_pdu iscsi_conn_bind iscsi_conn_get_addr_param iscsi_conn_get_param iscsi_conn_login_event iscsi_conn_send_pdu iscsi_conn_setup iscsi_conn_start iscsi_conn_stop iscsi_create_endpoint iscsi_create_flashnode_conn iscsi_create_flashnode_sess iscsi_create_iface iscsi_destroy_all_flashnode iscsi_destroy_endpoint iscsi_destroy_flashnode_sess iscsi_destroy_iface iscsi_find_flashnode_conn iscsi_find_flashnode_sess iscsi_flashnode_bus_match iscsi_get_discovery_parent_name iscsi_get_ipaddress_state_name iscsi_get_port_speed_name iscsi_get_port_state_name iscsi_get_router_state_name iscsi_host_alloc iscsi_host_for_each_session iscsi_is_session_dev iscsi_is_session_online iscsi_itt_to_task iscsi_lookup_endpoint iscsi_ping_comp_event iscsi_post_host_event iscsi_register_transport iscsi_session_chkready iscsi_session_failure iscsi_session_get_param iscsi_session_setup iscsi_session_teardown iscsi_set_param iscsi_switch_str_param iscsi_unblock_session iscsi_unregister_transport is_vmalloc_addr iterate_fd jiffies jiffies_64 jiffies64_to_nsecs jiffies_to_msecs jiffies_to_timespec64 jiffies_to_usecs kasprintf kernel_bind kernel_connect kernel_cpustat kernel_recvmsg kernel_sendmsg kernel_sock_shutdown kernel_write kexec_crash_loaded __kfifo_alloc __kfifo_free kfree kfree_const kfree_sensitive kfree_skb kfree_skb_list kfree_skb_partial kgdb_active kgdb_breakpoint kill_fasync kimage_voffset __kmalloc kmalloc_caches __kmalloc_node kmalloc_order_trace kmem_cache_alloc kmem_cache_alloc_node kmem_cache_alloc_node_trace kmem_cache_alloc_trace kmem_cache_create kmem_cache_create_usercopy kmem_cache_destroy kmem_cache_free kmem_cache_shrink kmemdup kobject_add kobject_create_and_add kobject_del kobject_get kobject_init kobject_init_and_add kobject_put kobject_set_name kobject_uevent kobject_uevent_env krealloc kset_create_and_add kset_find_obj kset_register kset_unregister ksize kstrdup kstrdup_const kstrndup kstrtobool kstrtobool_from_user kstrtoint kstrtoint_from_user kstrtoll kstrtoll_from_user kstrtou16 kstrtou8 kstrtouint kstrtouint_from_user kstrtoul_from_user kstrtoull kstrtoull_from_user ksys_sync_helper kthread_bind kthread_create_on_node kthread_create_worker kthread_destroy_worker kthread_park kthread_queue_work kthread_should_stop kthread_stop kthread_unpark kthread_unuse_mm kthread_use_mm ktime_get ktime_get_coarse_real_ts64 ktime_get_mono_fast_ns ktime_get_raw ktime_get_raw_ts64 ktime_get_real_seconds ktime_get_real_ts64 ktime_get_seconds ktime_get_ts64 ktime_get_with_offset kvasprintf kvfree kvfree_call_rcu kvmalloc_node lcm led_classdev_register_ext led_classdev_resume led_classdev_suspend led_classdev_unregister linkmode_set_pause __list_add_valid __list_del_entry_valid list_sort llist_add_batch __ll_sc_atomic_fetch_add __local_bh_enable_ip __lock_page lock_page_memcg lockref_get lock_sock_nested logic_inw logic_outw make_kgid make_kuid map_destroy mark_page_accessed match_hex match_int match_strdup match_string match_token match_u64 _mcount mdev_dev mdev_from_dev mdev_get_drvdata mdev_parent_dev mdev_register_device mdev_register_driver mdev_set_drvdata mdev_unregister_device mdev_unregister_driver mdev_uuid mdio45_probe mdiobus_alloc_size mdiobus_free mdiobus_get_phy mdiobus_read __mdiobus_register mdiobus_unregister mdiobus_write mdio_mii_ioctl memchr memchr_inv memcmp memcpy __memcpy_fromio __memcpy_toio memdup_user memdup_user_nul memmove memory_read_from_buffer memparse mempool_alloc mempool_alloc_slab mempool_create mempool_create_node mempool_destroy mempool_free mempool_free_slab mempool_kfree mempool_kmalloc memscan mem_section memset __memset_io memstart_addr metadata_dst_alloc mfd_add_devices mfd_remove_devices misc_deregister misc_register __mmdrop mm_kobj mmput mmu_interval_notifier_insert mmu_interval_notifier_remove mmu_interval_read_begin mmu_notifier_call_srcu mmu_notifier_put __mmu_notifier_register mmu_notifier_register mmu_notifier_synchronize mmu_notifier_unregister mod_delayed_work_on mod_timer mod_timer_pending __module_get module_layout module_put module_refcount mpi_alloc mpi_free mpi_get_buffer mpi_powm mpi_read_raw_data __msecs_to_jiffies msleep msleep_interruptible mtd_device_parse_register mtd_device_unregister __mutex_init mutex_is_locked mutex_lock mutex_lock_interruptible mutex_lock_killable mutex_trylock mutex_unlock napi_alloc_frag __napi_alloc_skb napi_complete_done napi_consume_skb napi_disable napi_get_frags napi_gro_flush napi_gro_frags napi_gro_receive __napi_schedule __napi_schedule_irqoff napi_schedule_prep native_queued_spin_lock_slowpath __ndelay ndo_dflt_bridge_getlink ndo_dflt_fdb_add __neigh_create neigh_destroy __neigh_event_send neigh_lookup netdev_alloc_frag __netdev_alloc_skb netdev_bind_sb_channel_queue netdev_crit netdev_err netdev_features_change netdev_has_upper_dev_all_rcu netdev_info netdev_lower_get_next netdev_master_upper_dev_get netdev_master_upper_dev_get_rcu netdev_master_upper_dev_link netdev_notice netdev_pick_tx netdev_port_same_parent_id netdev_printk netdev_reset_tc netdev_rss_key_fill netdev_rx_handler_register netdev_rx_handler_unregister netdev_set_num_tc netdev_set_sb_channel netdev_set_tc_queue netdev_state_change netdev_stats_to_stats64 netdev_unbind_sb_channel netdev_update_features netdev_upper_dev_unlink netdev_walk_all_lower_dev_rcu netdev_walk_all_upper_dev_rcu netdev_warn net_dim net_dim_get_def_rx_moderation net_dim_get_def_tx_moderation net_dim_get_rx_moderation net_dim_get_tx_moderation netif_carrier_off netif_carrier_on netif_device_attach netif_device_detach netif_get_num_default_rss_queues netif_napi_add __netif_napi_del netif_receive_skb netif_rx netif_rx_ni netif_schedule_queue netif_set_real_num_rx_queues netif_set_real_num_tx_queues netif_set_xps_queue netif_tx_stop_all_queues netif_tx_wake_queue netlink_ack netlink_broadcast netlink_capable __netlink_dump_start netlink_has_listeners __netlink_kernel_create netlink_kernel_release netlink_ns_capable netlink_set_err netlink_unicast net_namespace_list net_ns_type_operations net_ratelimit net_rwsem nf_connlabels_get nf_connlabels_put nf_connlabels_replace nf_conntrack_alloc __nf_conntrack_confirm nf_conntrack_destroy nf_conntrack_eventmask_report nf_conntrack_expect_lock nf_conntrack_find_get nf_conntrack_free nf_conntrack_hash nf_conntrack_hash_check_insert __nf_conntrack_helper_find nf_conntrack_helper_put nf_conntrack_helper_try_module_get nf_conntrack_htable_size nf_conntrack_in nf_conntrack_locks nf_ct_delete nf_ct_deliver_cached_events nf_ct_expect_alloc __nf_ct_expect_find nf_ct_expect_find_get nf_ct_expect_hash nf_ct_expect_hsize nf_ct_expect_iterate_net nf_ct_expect_put nf_ct_expect_register_notifier nf_ct_expect_related_report nf_ct_expect_unregister_notifier nf_ct_ext_add nf_ct_frag6_gather nf_ct_get_tuplepr nf_ct_helper_expectfn_find_by_name nf_ct_helper_expectfn_find_by_symbol nf_ct_helper_ext_add nf_ct_invert_tuple nf_ct_iterate_cleanup_net nf_ct_l4proto_find nf_ct_nat_ext_add nf_ct_remove_expectations nf_ct_seq_adjust nf_ct_tmpl_alloc nf_ct_tmpl_free __nf_ct_try_assign_helper nf_ct_unlink_expect_report nf_ct_zone_dflt nf_ipv6_ops nf_nat_alloc_null_binding nf_nat_hook nf_nat_icmp_reply_translation nf_nat_icmpv6_reply_translation nf_nat_packet nf_nat_setup_info nfnetlink_has_listeners nfnetlink_send nfnetlink_set_err nfnetlink_subsys_register nfnetlink_subsys_unregister nfnl_lock nfnl_unlock nf_register_net_hook nf_register_net_hooks nf_unregister_net_hook nf_unregister_net_hooks nla_find nla_memcpy __nla_parse nla_policy_len __nla_put nla_put nla_put_64bit __nla_reserve nla_reserve nla_strlcpy __nla_validate __nlmsg_put node_data __node_distance node_states node_to_cpumask_map no_llseek nonseekable_open noop_llseek nr_cpu_ids nr_irqs nr_node_ids ns_capable nsecs_to_jiffies ns_to_kernel_old_timeval ns_to_timespec64 numa_node __num_online_cpus num_registered_fb nvidia_gpu_vfio nvme_alloc_request nvme_cancel_request nvme_change_ctrl_state nvme_cleanup_cmd nvme_complete_async_event nvme_complete_rq nvme_disable_ctrl nvme_enable_ctrl nvme_fc_rcv_ls_req nvme_fc_register_localport nvme_fc_register_remoteport nvme_fc_rescan_remoteport nvme_fc_set_remoteport_devloss nvme_fc_unregister_localport nvme_fc_unregister_remoteport nvme_get_features nvme_init_ctrl nvme_init_identify nvme_io_timeout nvme_kill_queues nvme_remove_namespaces nvme_reset_ctrl nvme_reset_ctrl_sync nvme_set_features nvme_set_queue_count nvme_setup_cmd nvme_shutdown_ctrl nvme_start_admin_queue nvme_start_ctrl nvme_start_freeze nvme_start_queues nvme_stop_admin_queue nvme_stop_ctrl nvme_stop_queues nvme_submit_sync_cmd nvme_sync_queues nvmet_fc_invalidate_host nvmet_fc_rcv_fcp_abort nvmet_fc_rcv_fcp_req nvmet_fc_rcv_ls_req nvmet_fc_register_targetport nvmet_fc_unregister_targetport nvme_try_sched_reset nvme_unfreeze nvme_uninit_ctrl nvme_wait_freeze nvme_wait_freeze_timeout nvme_wait_reset nvme_wq of_device_is_compatible of_find_device_by_node of_fwnode_ops of_match_node of_mdiobus_register of_node_put of_parse_phandle of_parse_phandle_with_fixed_args of_phy_find_device on_each_cpu_cond_mask orderly_poweroff out_of_line_wait_on_bit override_creds __page_file_index __page_frag_cache_drain page_frag_free __page_mapcount page_mapped page_pool_alloc_frag page_pool_alloc_pages page_pool_create page_pool_destroy page_pool_put_page page_pool_release_page page_pool_update_nid pagevec_lookup_range pagevec_lookup_range_tag __pagevec_release panic panic_notifier_list param_array_ops param_get_int param_get_uint param_ops_bint param_ops_bool param_ops_byte param_ops_charp param_ops_hexint param_ops_int param_ops_long param_ops_short param_ops_string param_ops_uint param_ops_ullong param_ops_ulong param_ops_ushort param_set_bool param_set_int param_set_uint path_get path_put pci_aer_clear_nonfatal_status pci_alloc_irq_vectors_affinity pci_assign_unassigned_bus_resources pcibios_resource_to_bus pci_bus_read_config_dword pci_bus_resource_n pci_bus_type pci_cfg_access_lock pci_cfg_access_unlock pci_check_and_mask_intx pci_choose_state pci_clear_master pci_clear_mwi pci_d3cold_disable pci_dev_driver pci_dev_get pci_device_is_present pci_dev_present pci_dev_put pci_disable_device pci_disable_link_state pci_disable_msi pci_disable_msix pci_disable_pcie_error_reporting pci_disable_rom pci_disable_sriov pcie_aspm_enabled pcie_bandwidth_available pcie_capability_clear_and_set_word pcie_capability_read_dword pcie_capability_read_word pcie_capability_write_word pcie_flr pcie_get_mps pcie_get_speed_cap pcie_get_width_cap pci_enable_atomic_ops_to_root pci_enable_device pci_enable_device_mem pci_enable_msi pci_enable_msix_range pci_enable_pcie_error_reporting pci_enable_rom pci_enable_sriov pci_enable_wake pcie_print_link_status pcie_relaxed_ordering_enabled pcie_set_readrq pci_find_capability pci_find_ext_capability pci_free_irq pci_free_irq_vectors pci_get_class pci_get_device pci_get_domain_bus_and_slot pci_get_dsn pci_get_slot pci_ignore_hotplug pci_intx pci_iomap pci_ioremap_bar pci_irq_get_affinity pci_irq_vector pci_load_saved_state pci_map_rom pci_match_id pcim_enable_device pcim_iomap pcim_iomap_regions pcim_iomap_table pcim_iounmap pci_msi_mask_irq pci_msi_unmask_irq pci_msix_vec_count pci_num_vf pci_prepare_to_sleep pci_read_config_byte pci_read_config_dword pci_read_config_word pci_read_vpd __pci_register_driver pci_release_regions pci_release_resource pci_release_selected_regions pci_request_irq pci_request_regions pci_request_selected_regions pci_rescan_bus pci_reset_bus pci_resize_resource pci_restore_msi_state pci_restore_state pci_save_state pci_select_bars pci_set_master pci_set_mwi pci_set_power_state pci_sriov_configure_simple pci_sriov_get_totalvfs pci_sriov_set_totalvfs pci_stop_and_remove_bus_device pci_stop_and_remove_bus_device_locked pci_store_saved_state pci_try_set_mwi pci_unmap_rom pci_unregister_driver pci_vfs_assigned pci_vpd_find_info_keyword pci_vpd_find_tag pci_wait_for_pending_transaction pci_wake_from_d3 pci_write_config_byte pci_write_config_dword pci_write_config_word pcix_set_mmrbc PDE_DATA __per_cpu_offset percpu_ref_exit percpu_ref_init percpu_ref_kill_and_confirm perf_event_update_userpage perf_pmu_register perf_pmu_unregister perf_trace_buf_alloc perf_trace_run_bpf_submit pfn_valid phy_attach_direct phy_attached_info phy_connect phy_connect_direct phy_device_free phy_device_register phy_device_remove phy_disconnect phy_ethtool_ksettings_get phy_ethtool_ksettings_set phy_loopback phy_mii_ioctl phy_resume phy_set_asym_pause phy_set_max_speed phy_start phy_start_aneg phy_stop phy_support_asym_pause phy_suspend phy_validate_pause pid_task pid_vnr platform_bus_type platform_device_register platform_device_register_full platform_device_unregister __platform_driver_register platform_driver_unregister platform_get_irq platform_get_resource platform_get_resource_byname pldmfw_flash_image pldmfw_op_pci_match_record pm_power_off pm_runtime_allow pm_runtime_autosuspend_expiration __pm_runtime_disable pm_runtime_enable pm_runtime_forbid __pm_runtime_idle __pm_runtime_resume pm_runtime_set_autosuspend_delay __pm_runtime_set_status __pm_runtime_suspend __pm_runtime_use_autosuspend pm_schedule_suspend pm_suspend_global_flags power_supply_is_system_supplied prandom_bytes prandom_u32 prepare_creds prepare_to_wait prepare_to_wait_event prepare_to_wait_exclusive print_hex_dump printk __printk_ratelimit printk_timed_ratelimit proc_create proc_create_data proc_dointvec proc_dointvec_minmax proc_mkdir proc_remove proc_set_size __pskb_copy_fclone pskb_expand_head __pskb_pull_tail ___pskb_trim ptp_clock_event ptp_clock_index ptp_clock_register ptp_clock_unregister ptp_find_pin __put_cred put_device put_disk __put_net __put_page put_pid __put_task_struct put_unused_fd qdisc_reset qed_get_eth_ops qed_put_eth_ops queue_delayed_work_on queued_read_lock_slowpath queued_write_lock_slowpath queue_work_on radix_tree_delete radix_tree_gang_lookup radix_tree_gang_lookup_tag radix_tree_insert radix_tree_iter_delete radix_tree_lookup radix_tree_lookup_slot radix_tree_next_chunk radix_tree_preload radix_tree_tagged radix_tree_tag_set raid_class_attach raid_class_release ___ratelimit raw_notifier_call_chain raw_notifier_chain_register raw_notifier_chain_unregister rb_erase __rb_erase_color rb_first rb_first_postorder __rb_insert_augmented rb_insert_color rb_next rb_next_postorder rb_replace_node rcu_barrier rcu_read_unlock_strict rdma_accept rdma_bind_addr __rdma_block_iter_next __rdma_block_iter_start rdmacg_register_device rdmacg_try_charge rdmacg_uncharge rdmacg_unregister_device rdma_connect rdma_consumer_reject_data rdma_copy_ah_attr rdma_create_ah __rdma_create_kernel_id rdma_create_qp rdma_destroy_ah_attr rdma_destroy_ah_user rdma_destroy_id rdma_destroy_qp rdma_disconnect rdma_event_msg rdma_is_zero_gid rdma_listen rdma_nl_put_driver_string rdma_nl_put_driver_u32 rdma_nl_put_driver_u64 rdma_nl_stat_hwcounter_entry rdma_notify rdma_port_get_link_layer rdma_query_ah rdma_query_gid rdma_read_gid_hw_context rdma_read_gid_l2_fields rdma_reject rdma_reject_msg rdma_resolve_addr rdma_resolve_route rdma_restrack_get rdma_restrack_put rdma_roce_rescan_device rdma_rw_ctx_destroy rdma_rw_ctx_init rdma_rw_ctx_post rdma_rw_ctx_wrs rdma_set_afonly rdma_user_mmap_entry_get_pgoff rdma_user_mmap_entry_insert_range rdma_user_mmap_entry_put rdma_user_mmap_entry_remove rdma_user_mmap_io read_cache_pages recalc_sigpending refcount_dec_and_mutex_lock refcount_dec_if_one refcount_warn_saturate register_acpi_hed_notifier register_acpi_notifier register_blkdev register_blocking_lsm_notifier __register_chrdev register_chrdev_region register_console register_die_notifier registered_fb register_fib_notifier register_inet6addr_notifier register_inetaddr_notifier register_ip_vs_scheduler register_kprobe register_lsm_notifier register_module_notifier register_netdev register_netdevice register_netdevice_notifier register_netdevice_notifier_net register_netevent_notifier register_net_sysctl register_oom_notifier register_pernet_device register_pernet_subsys register_reboot_notifier register_sysctl_table regmap_read regmap_write regulator_get_voltage regulator_set_voltage release_firmware release_pages __release_region release_sock remap_pfn_range remap_vmalloc_range remove_conflicting_framebuffers remove_conflicting_pci_framebuffers remove_proc_entry remove_wait_queue request_firmware request_firmware_direct request_firmware_nowait __request_module __request_region request_threaded_irq reservation_ww_class reset_devices revalidate_disk_size revert_creds rhashtable_destroy rhashtable_free_and_destroy rhashtable_init rhashtable_insert_slow rhashtable_walk_enter rhashtable_walk_exit rhashtable_walk_next rhashtable_walk_start_check rhashtable_walk_stop rhltable_init __rht_bucket_nested rht_bucket_nested rht_bucket_nested_insert round_jiffies round_jiffies_relative round_jiffies_up rps_cpu_mask rps_may_expire_flow rps_sock_flow_table rsa_parse_priv_key rsa_parse_pub_key rt6_lookup rtc_time64_to_tm rtnl_configure_link rtnl_create_link rtnl_is_locked rtnl_link_get_net rtnl_link_register rtnl_link_unregister rtnl_lock rtnl_nla_parse_ifla rtnl_trylock rtnl_unlock sas_alloc_slow_task sas_attach_transport sas_bios_param sas_change_queue_depth sas_disable_tlr sas_domain_attach_transport sas_drain_work sas_eh_device_reset_handler sas_eh_target_reset_handler sas_enable_tlr sas_end_device_alloc sas_expander_alloc sas_free_task sas_get_local_phy sas_ioctl sas_is_tlr_enabled sas_phy_add sas_phy_alloc sas_phy_delete sas_phy_free sas_phy_reset sas_port_add sas_port_add_phy sas_port_alloc_num sas_port_delete sas_port_delete_phy sas_port_free sas_prep_resume_ha sas_queuecommand sas_read_port_mode_page sas_register_ha sas_release_transport sas_remove_host sas_resume_ha sas_rphy_add sas_slave_configure sas_ssp_task_response sas_suspend_ha sas_target_alloc sas_target_destroy sas_unregister_ha sbitmap_queue_clear __sbitmap_queue_get scatterwalk_map_and_copy sched_clock sched_set_fifo sched_set_fifo_low sched_set_normal schedule schedule_hrtimeout schedule_hrtimeout_range schedule_timeout schedule_timeout_interruptible schedule_timeout_uninterruptible scmd_printk scnprintf scsi_add_device scsi_add_host_with_dma scsi_block_requests scsi_build_sense_buffer scsi_change_queue_depth scsi_command_normalize_sense scsi_device_get scsi_device_lookup scsi_device_put scsi_device_set_state scsi_device_type scsi_dma_map scsi_dma_unmap __scsi_execute scsi_get_vpd_page scsi_host_alloc scsi_host_busy scsi_host_get scsi_host_lookup scsi_host_put scsi_internal_device_block_nowait scsi_internal_device_unblock_nowait scsi_is_fc_rport scsi_is_host_device scsi_is_sdev_device __scsi_iterate_devices scsilun_to_int scsi_normalize_sense scsi_print_command scsi_queue_work scsi_register_driver scsi_remove_device scsi_remove_host scsi_remove_target scsi_rescan_device scsi_sanitize_inquiry_string scsi_scan_host scsi_sense_key_string scsi_unblock_requests sdev_prefix_printk secpath_set secure_tcp_seq secure_tcpv6_seq security_d_instantiate security_ib_alloc_security security_ib_endport_manage_subnet security_ib_free_security security_ib_pkey_access security_release_secctx security_secid_to_secctx security_tun_dev_alloc_security security_tun_dev_attach security_tun_dev_attach_queue security_tun_dev_create security_tun_dev_free_security security_tun_dev_open send_sig send_sig_info seq_list_next seq_list_start seq_lseek seq_open seq_printf seq_putc seq_put_decimal_ull seq_puts seq_read seq_release seq_write set_cpus_allowed_ptr set_current_groups set_device_ro set_disk_ro set_freezable set_normalized_timespec64 set_page_dirty set_page_dirty_lock set_user_nice sg_alloc_table sg_alloc_table_chained sg_alloc_table_from_pages sg_copy_from_buffer sg_copy_to_buffer sg_free_table sg_free_table_chained sg_init_table sgl_alloc sgl_free sg_miter_next sg_miter_start sg_miter_stop sg_nents sg_next __sg_page_iter_next __sg_page_iter_start sg_pcopy_from_buffer sg_pcopy_to_buffer sg_zero_buffer show_class_attr_string sigprocmask si_meminfo simple_attr_open simple_attr_read simple_attr_release simple_attr_write simple_open simple_read_from_buffer simple_strtol simple_strtoul simple_strtoull simple_write_to_buffer single_open single_release sk_alloc sk_attach_filter skb_add_rx_frag __skb_checksum skb_checksum __skb_checksum_complete skb_checksum_help skb_clone skb_clone_tx_timestamp skb_copy skb_copy_bits skb_copy_datagram_from_iter skb_copy_datagram_iter skb_copy_expand skb_copy_ubufs skb_dequeue skb_ensure_writable __skb_ext_del __skb_ext_put __skb_flow_dissect __skb_get_hash __skb_gso_segment skb_gso_validate_mac_len __skb_pad skb_partial_csum_set skb_pull skb_pull_rcsum skb_push skb_put skb_queue_purge skb_queue_tail skb_realloc_headroom __skb_recv_datagram skb_scrub_packet skb_set_owner_w skb_store_bits skb_to_sgvec skb_trim skb_try_coalesce skb_tstamp_tx skb_tx_error skb_vlan_pop skb_vlan_push __skb_warn_lro_forwarding skb_zerocopy skb_zerocopy_headlen sk_detach_filter sk_filter_trim_cap sk_free skip_spaces smp_call_function_many smp_call_function_single snprintf sock_alloc_send_pskb sock_create sock_create_kern sock_edemux sockfd_lookup sock_init_data sock_queue_err_skb sock_recv_errqueue sock_release sock_zerocopy_callback softnet_data sort sprintf sprint_symbol srcu_barrier __srcu_read_lock __srcu_read_unlock sscanf __stack_chk_fail __stack_chk_guard stack_trace_print stack_trace_save starget_for_each_device strcasecmp strcat strchr strcmp strcpy strcspn stream_open strim strlcat strlcpy strlen strncasecmp strncat strncmp strncpy strncpy_from_user strnlen strnstr strpbrk strrchr strscpy strscpy_pad strsep strspn strstr submit_bio submit_bio_noacct __sw_hweight32 __sw_hweight64 __sw_hweight8 swiotlb_nr_tbl __symbol_put sync_file_create synchronize_irq synchronize_net synchronize_rcu synchronize_srcu syscon_node_to_regmap syscon_regmap_lookup_by_phandle sysfs_add_file_to_group sysfs_create_bin_file sysfs_create_file_ns sysfs_create_files sysfs_create_group sysfs_create_groups sysfs_create_link sysfs_format_mac sysfs_remove_bin_file sysfs_remove_file_from_group sysfs_remove_file_ns sysfs_remove_files sysfs_remove_group sysfs_remove_groups sysfs_remove_link sysfs_streq system_highpri_wq system_state system_unbound_wq system_wq sys_tz t10_pi_type1_crc t10_pi_type1_ip t10_pi_type3_crc t10_pi_type3_ip tap_get_socket task_active_pid_ns tasklet_init tasklet_kill __tasklet_schedule tasklet_setup __task_pid_nr_ns tcp_gro_complete tcp_hashinfo time64_to_tm timecounter_cyc2time timecounter_init timecounter_read tls_get_record tls_validate_xmit_skb to_drm_sched_fence _totalram_pages trace_define_field trace_event_buffer_commit trace_event_buffer_reserve trace_event_ignore_this_pid trace_event_raw_init trace_event_reg trace_handle_return __traceiter_dma_fence_emit __traceiter_nvme_sq __traceiter_xdp_exception __tracepoint_dma_fence_emit __tracepoint_nvme_sq __tracepoint_xdp_exception trace_print_array_seq trace_print_flags_seq trace_print_symbols_seq trace_raw_output_prep trace_seq_printf trace_seq_putc try_module_get try_wait_for_completion ttm_bo_bulk_move_lru_tail ttm_bo_device_init ttm_bo_device_release ttm_bo_dma_acc_size ttm_bo_eviction_valuable ttm_bo_evict_mm ttm_bo_glob ttm_bo_init ttm_bo_init_reserved ttm_bo_kmap ttm_bo_kunmap ttm_bo_lock_delayed_workqueue ttm_bo_mem_space ttm_bo_mmap ttm_bo_mmap_obj ttm_bo_move_accel_cleanup ttm_bo_move_memcpy ttm_bo_move_to_lru_tail ttm_bo_move_ttm ttm_bo_put ttm_bo_unlock_delayed_workqueue ttm_bo_validate ttm_bo_vm_access ttm_bo_vm_close ttm_bo_vm_fault_reserved ttm_bo_vm_open ttm_bo_vm_reserve ttm_bo_wait ttm_dma_page_alloc_debugfs ttm_dma_populate ttm_dma_tt_fini ttm_dma_tt_init ttm_dma_unpopulate ttm_eu_backoff_reservation ttm_eu_fence_buffer_objects ttm_eu_reserve_buffers ttm_page_alloc_debugfs ttm_pool_populate ttm_pool_unpopulate ttm_populate_and_map_pages ttm_range_man_fini ttm_range_man_init ttm_resource_free ttm_resource_manager_force_list_clean ttm_resource_manager_init ttm_sg_tt_init ttm_tt_destroy_common ttm_tt_fini ttm_tt_init ttm_tt_populate ttm_tt_set_placement_caching ttm_unmap_and_unpopulate_pages __udelay udp4_hwcsum udp_encap_enable udp_tunnel_nic_ops uio_event_notify __uio_register_device uio_unregister_device unlock_page unlock_page_memcg unmap_mapping_range unregister_acpi_hed_notifier unregister_acpi_notifier unregister_blkdev unregister_blocking_lsm_notifier __unregister_chrdev unregister_chrdev_region unregister_console unregister_die_notifier unregister_fib_notifier unregister_inet6addr_notifier unregister_inetaddr_notifier unregister_ip_vs_scheduler unregister_kprobe unregister_lsm_notifier unregister_module_notifier unregister_netdev unregister_netdevice_many unregister_netdevice_notifier unregister_netdevice_notifier_net unregister_netdevice_queue unregister_netevent_notifier unregister_net_sysctl_table unregister_oom_notifier unregister_pernet_device unregister_pernet_subsys unregister_reboot_notifier unregister_sysctl_table up up_read up_write __usecs_to_jiffies usleep_range uuid_gen uuid_null uuid_parse _uverbs_alloc uverbs_copy_to uverbs_copy_to_struct_or_zero uverbs_destroy_def_handler uverbs_fd_class uverbs_finalize_uobj_create _uverbs_get_const uverbs_get_flags32 uverbs_get_flags64 uverbs_idr_class uverbs_uobject_fd_release uverbs_uobject_put vabits_actual vfio_add_group_dev vfio_del_group_dev vfio_info_add_capability vfio_info_cap_shift vfio_pin_pages vfio_register_iommu_driver vfio_register_notifier vfio_set_irqs_validate_and_prepare vfio_unpin_pages vfio_unregister_iommu_driver vfio_unregister_notifier vfree vfs_fallocate vfs_fsync vfs_getattr vfs_statfs vga_client_register vga_remove_vgacon vlan_dev_real_dev vlan_dev_vlan_id vlan_dev_vlan_proto __vlan_find_dev_deep_rcu __vmalloc vmalloc vmalloc_node vmalloc_to_page vmalloc_user vmap vm_get_page_prot vm_insert_page vm_insert_pfn_prot vm_mmap vm_munmap vm_zone_stat vprintk vscnprintf vsnprintf vsprintf vunmap vzalloc vzalloc_node wait_for_completion wait_for_completion_interruptible wait_for_completion_interruptible_timeout wait_for_completion_io_timeout wait_for_completion_killable wait_for_completion_timeout wait_on_page_bit __wake_up wake_up_bit __wake_up_locked wake_up_process __wake_up_sync_key __warn_printk work_busy write_cache_pages ww_mutex_lock ww_mutex_lock_interruptible ww_mutex_unlock __xa_alloc_cyclic __xa_cmpxchg xa_destroy __xa_erase xa_erase xa_find xa_find_after __xa_insert xa_load __xa_store xa_store xdp_convert_zc_to_xdp_frame xdp_do_flush xdp_do_redirect xdp_return_frame xdp_return_frame_rx_napi xdp_rxq_info_is_reg xdp_rxq_info_reg xdp_rxq_info_reg_mem_model xdp_rxq_info_unreg xdp_rxq_info_unreg_mem_model xdp_rxq_info_unused xdp_warn xfrm_aead_get_byname xfrm_replay_seqhi xz_dec_end xz_dec_init xz_dec_run yield zap_vma_ptes zerocopy_sg_from_iter zgid zlib_inflate zlib_inflateEnd zlib_inflateInit2 zlib_inflate_workspacesize 附2：x86 平台 KABI 白名单列表初稿（3171个） acpi_bus_get_device acpi_bus_register_driver acpi_bus_unregister_driver acpi_check_dsm acpi_dev_found acpi_disabled acpi_dma_configure_id acpi_evaluate_dsm acpi_evaluate_integer acpi_evaluate_object acpi_format_exception acpi_gbl_FADT acpi_get_devices acpi_get_handle acpi_get_name acpi_get_table acpi_gsi_to_irq acpi_handle_printk acpi_has_method acpi_install_notify_handler acpi_lid_open acpi_match_device __acpi_node_get_property_reference acpi_os_map_memory acpi_os_unmap_generic_address acpi_os_unmap_memory acpi_register_gsi acpi_remove_notify_handler acpi_unregister_gsi acpi_video_get_edid acpi_walk_namespace address_space_init_once add_timer add_uevent_var add_wait_queue add_wait_queue_exclusive admin_timeout alloc_chrdev_region alloc_cpumask_var alloc_cpu_rmap __alloc_disk_node alloc_etherdev_mqs alloc_netdev_mqs __alloc_pages alloc_pages __alloc_percpu __alloc_percpu_gfp __alloc_skb alloc_workqueue anon_inode_getfd anon_inode_getfile apei_hest_parse apei_map_generic_address apei_read apic arch_io_free_memtype_wc arch_io_reserve_memtype_wc arch_phys_wc_add arch_phys_wc_del arch_wb_cache_pmem argv_free argv_split arp_tbl async_schedule_node ata_link_next ata_tf_to_fis _atomic_dec_and_lock atomic_notifier_call_chain atomic_notifier_chain_register atomic_notifier_chain_unregister attribute_container_find_class_device autoremove_wake_function backlight_device_register backlight_device_set_brightness backlight_device_unregister backlight_force_update bdevname bdev_read_only bdget_disk _bin2bcd bin2hex bio_add_page bio_alloc_bioset bio_associate_blkg bio_chain bio_clone_fast bio_devname bio_endio bio_free_pages bio_init bio_integrity_add_page bio_integrity_alloc bio_put bioset_exit bioset_init __bitmap_and __bitmap_andnot __bitmap_clear __bitmap_complement __bitmap_equal bitmap_find_free_region bitmap_find_next_zero_area_off bitmap_free bitmap_from_arr32 __bitmap_intersects __bitmap_or bitmap_parse bitmap_parselist bitmap_print_to_pagebuf bitmap_release_region __bitmap_set __bitmap_shift_left __bitmap_shift_right __bitmap_subset __bitmap_weight __bitmap_xor bitmap_zalloc bit_wait blk_alloc_queue blk_check_plugged blk_cleanup_queue blkdev_get_by_path __blkdev_issue_discard blkdev_issue_discard blkdev_issue_flush blkdev_issue_write_same __blkdev_issue_zeroout blkdev_issue_zeroout blkdev_put blk_execute_rq blk_execute_rq_nowait blk_finish_plug blk_freeze_queue_start blk_get_queue blk_get_request blk_integrity_register blk_integrity_unregister blk_mq_alloc_request blk_mq_alloc_request_hctx blk_mq_alloc_tag_set blk_mq_complete_request blk_mq_complete_request_remote blk_mq_end_request blk_mq_free_request blk_mq_free_tag_set blk_mq_freeze_queue blk_mq_freeze_queue_wait blk_mq_freeze_queue_wait_timeout blk_mq_init_queue blk_mq_map_queues blk_mq_pci_map_queues blk_mq_quiesce_queue blk_mq_rdma_map_queues blk_mq_requeue_request blk_mq_run_hw_queues blk_mq_start_request blk_mq_tagset_busy_iter blk_mq_tagset_wait_completed_request blk_mq_tag_to_rq blk_mq_unfreeze_queue blk_mq_unique_tag blk_mq_unquiesce_queue blk_mq_update_nr_hw_queues blk_poll blk_put_queue blk_put_request blk_queue_bounce_limit blk_queue_chunk_sectors blk_queue_dma_alignment blk_queue_flag_clear blk_queue_flag_set blk_queue_flag_test_and_set blk_queue_io_min blk_queue_io_opt blk_queue_logical_block_size blk_queue_max_discard_sectors blk_queue_max_discard_segments blk_queue_max_hw_sectors blk_queue_max_segments blk_queue_max_segment_size blk_queue_max_write_same_sectors blk_queue_max_write_zeroes_sectors blk_queue_physical_block_size blk_queue_rq_timeout blk_queue_segment_boundary blk_queue_split blk_queue_update_dma_alignment blk_queue_virt_boundary blk_queue_write_cache blk_rq_append_bio blk_rq_count_integrity_sg blk_rq_map_integrity_sg blk_rq_map_kern __blk_rq_map_sg blk_rq_map_user blk_rq_map_user_iov blk_rq_unmap_user blk_set_queue_dying blk_set_stacking_limits blk_stack_limits blk_start_plug blk_status_to_errno blk_verify_command blocking_notifier_call_chain blocking_notifier_chain_register blocking_notifier_chain_unregister boot_cpu_data bpf_dispatcher_xdp_func bpf_prog_add bpf_prog_inc bpf_prog_put bpf_prog_sub bpf_stats_enabled_key bpf_trace_run1 bpf_trace_run2 bpf_trace_run3 bpf_trace_run4 bpf_trace_run5 bpf_trace_run6 bpf_trace_run9 bpf_warn_invalid_xdp_action bsg_job_done btree_destroy btree_geo32 btree_geo64 btree_get_prev btree_init btree_insert btree_last btree_lookup btree_remove btree_update build_skb bus_find_device bus_register bus_unregister cachemode2protval call_netdevice_notifiers call_rcu call_srcu call_usermodehelper cancel_delayed_work cancel_delayed_work_sync cancel_work_sync can_do_mlock capable cdev_add cdev_alloc cdev_del cdev_device_add cdev_device_del cdev_init cdev_set_parent cgroup_attach_task_all __check_object_size class_compat_create_link class_compat_register class_compat_remove_link class_compat_unregister __class_create class_create_file_ns class_destroy class_find_device class_for_each_device __class_register class_remove_file_ns class_unregister cleanup_srcu_struct clear_user clflush_cache_range clk_disable clk_enable clk_get_rate clk_prepare clk_unprepare clk_unregister __close_fd commit_creds compat_alloc_user_space complete complete_all complete_and_exit completion_done component_add component_del __cond_resched configfs_register_subsystem configfs_remove_default_groups configfs_unregister_subsystem config_group_init config_group_init_type_name config_item_put console_lock console_unlock __const_udelay consume_skb convert_art_to_tsc _copy_from_iter _copy_from_user _copy_to_iter _copy_to_user copy_user_enhanced_fast_string copy_user_generic_string copy_user_generic_unrolled cper_estatus_check cper_estatus_check_header cper_estatus_print __cpu_active_mask cpu_bit_bitmap cpu_core_map cpufreq_get cpufreq_quick_get __cpuhp_remove_state __cpuhp_setup_state __cpuhp_state_add_instance __cpuhp_state_remove_instance cpu_info cpu_khz cpumask_local_spread cpumask_next cpumask_next_and cpumask_next_wrap cpu_number __cpu_online_mask __cpu_possible_mask __cpu_present_mask cpu_sibling_map cpus_read_lock cpus_read_unlock crc16 crc32c __crc32c_le_shift crc32_le crc8 crc8_populate_msb crc_t10dif crypto_ahash_digest crypto_ahash_final crypto_ahash_setkey crypto_alloc_ahash crypto_alloc_akcipher crypto_alloc_shash crypto_destroy_tfm crypto_inc __crypto_memneq crypto_register_akcipher crypto_register_alg crypto_register_kpp crypto_register_shash crypto_register_skciphers crypto_shash_final crypto_shash_update crypto_unregister_akcipher crypto_unregister_alg crypto_unregister_kpp crypto_unregister_shash crypto_unregister_skciphers csum_ipv6_magic csum_partial _ctype current_task dca3_get_tag dca_add_requester dca_register_notify dca_remove_requester dca_unregister_notify dcb_getapp dcb_ieee_delapp dcb_ieee_getapp_mask dcb_ieee_setapp dcbnl_cee_notify dcbnl_ieee_notify dcb_setapp debugfs_attr_read debugfs_attr_write debugfs_create_atomic_t debugfs_create_bool debugfs_create_dir debugfs_create_file debugfs_create_file_unsafe debugfs_create_regset32 debugfs_create_u32 debugfs_create_u64 debugfs_create_u8 debugfs_initialized debugfs_lookup debugfs_remove __default_kernel_pte_mask default_llseek default_wake_function __delay delayed_work_timer_fn del_gendisk del_timer del_timer_sync destroy_workqueue dev_add_pack dev_addr_add dev_addr_del dev_alloc_name dev_attr_phy_event_threshold dev_base_lock dev_change_flags dev_close _dev_crit dev_disable_lro dev_driver_string _dev_emerg _dev_err __dev_get_by_index dev_get_by_index dev_get_by_index_rcu __dev_get_by_name dev_get_by_name dev_get_flags dev_get_iflink dev_get_stats device_add device_add_disk device_create device_create_file device_create_with_groups device_del device_destroy device_for_each_child device_get_mac_address device_get_next_child_node device_initialize device_link_add device_match_name device_property_present device_property_read_string device_property_read_string_array device_property_read_u32_array device_property_read_u8_array device_register device_release_driver device_remove_file device_remove_file_self device_rename device_reprobe device_set_wakeup_capable device_set_wakeup_enable device_unregister device_wakeup_disable _dev_info __dev_kfree_skb_any __dev_kfree_skb_irq devlink_alloc devlink_flash_update_begin_notify devlink_flash_update_end_notify devlink_flash_update_status_notify devlink_fmsg_arr_pair_nest_end devlink_fmsg_arr_pair_nest_start devlink_fmsg_binary_pair_nest_end devlink_fmsg_binary_pair_nest_start devlink_fmsg_binary_pair_put devlink_fmsg_binary_put devlink_fmsg_bool_pair_put devlink_fmsg_obj_nest_end devlink_fmsg_obj_nest_start devlink_fmsg_pair_nest_end devlink_fmsg_pair_nest_start devlink_fmsg_string_pair_put devlink_fmsg_u32_pair_put devlink_fmsg_u32_put devlink_fmsg_u64_pair_put devlink_fmsg_u8_pair_put devlink_free devlink_health_report devlink_health_reporter_create devlink_health_reporter_destroy devlink_health_reporter_priv devlink_health_reporter_recovery_done devlink_health_reporter_state_update devlink_info_board_serial_number_put devlink_info_driver_name_put devlink_info_serial_number_put devlink_info_version_fixed_put devlink_info_version_running_put devlink_info_version_stored_put devlink_net devlink_param_driverinit_value_get devlink_param_driverinit_value_set devlink_params_publish devlink_params_register devlink_params_unpublish devlink_params_unregister devlink_param_value_changed devlink_port_attrs_pci_pf_set devlink_port_attrs_pci_vf_set devlink_port_attrs_set devlink_port_health_reporter_create devlink_port_health_reporter_destroy devlink_port_params_register devlink_port_params_unregister devlink_port_register devlink_port_type_clear devlink_port_type_eth_set devlink_port_type_ib_set devlink_port_unregister devlink_region_create devlink_region_destroy devlink_region_snapshot_create devlink_region_snapshot_id_get devlink_region_snapshot_id_put devlink_register devlink_reload_disable devlink_reload_enable devlink_remote_reload_actions_performed devlink_unregister devm_add_action devmap_managed_key dev_mc_add dev_mc_add_excl dev_mc_del devm_clk_get __devm_drm_dev_alloc devm_free_irq devm_hwmon_device_register_with_groups devm_ioremap devm_ioremap_resource devm_iounmap devm_kfree devm_kmalloc devm_kmemdup devm_mdiobus_alloc_size devm_request_threaded_irq _dev_notice dev_open dev_pm_qos_expose_latency_tolerance dev_pm_qos_hide_latency_tolerance dev_pm_qos_update_user_latency_tolerance dev_printk dev_printk_emit dev_queue_xmit __dev_remove_pack dev_remove_pack dev_set_mac_address dev_set_mtu dev_set_name dev_set_promiscuity dev_trans_start dev_uc_add dev_uc_add_excl dev_uc_del _dev_warn d_find_alias disable_irq disable_irq_nosync disk_end_io_acct disk_start_io_acct dma_alloc_attrs dma_buf_dynamic_attach dma_buf_get dma_buf_map_attachment dma_buf_move_notify dma_buf_pin dma_buf_put dma_buf_unmap_attachment dma_buf_unpin dma_common_get_sgtable dma_fence_add_callback dma_fence_array_create dma_fence_context_alloc dma_fence_free dma_fence_get_status dma_fence_get_stub dma_fence_init dma_fence_release dma_fence_signal dma_fence_signal_locked dma_fence_wait_any_timeout dma_fence_wait_timeout dma_free_attrs dma_get_required_mask dmam_alloc_attrs dma_map_page_attrs dma_map_resource dma_map_sg_attrs dma_max_mapping_size dmam_free_coherent dma_mmap_attrs dmam_pool_create dma_ops dma_pool_alloc dma_pool_create dma_pool_destroy dma_pool_free dma_resv_add_excl_fence dma_resv_add_shared_fence dma_resv_get_fences_rcu dma_resv_reserve_shared dma_resv_test_signaled_rcu dma_resv_wait_timeout_rcu dma_set_coherent_mask dma_set_mask dma_sync_single_for_cpu dma_sync_single_for_device dma_unmap_page_attrs dma_unmap_resource dma_unmap_sg_attrs dmi_check_system dmi_get_system_info dmi_match __do_once_done __do_once_start do_wait_intr down downgrade_write down_interruptible down_read down_read_killable down_read_trylock down_timeout down_trylock down_write down_write_killable down_write_trylock d_path dput dql_completed dql_reset drain_workqueue driver_create_file driver_find_device driver_for_each_device driver_register driver_remove_file driver_unregister drm_add_edid_modes drm_add_modes_noedid drm_atomic_add_affected_connectors drm_atomic_add_affected_planes drm_atomic_commit drm_atomic_get_connector_state drm_atomic_get_crtc_state drm_atomic_get_plane_state drm_atomic_get_private_obj_state drm_atomic_helper_async_check drm_atomic_helper_calc_timestamping_constants drm_atomic_helper_check drm_atomic_helper_check_modeset drm_atomic_helper_check_planes drm_atomic_helper_check_plane_state drm_atomic_helper_cleanup_planes drm_atomic_helper_commit drm_atomic_helper_commit_cleanup_done drm_atomic_helper_commit_hw_done __drm_atomic_helper_connector_destroy_state drm_atomic_helper_connector_destroy_state __drm_atomic_helper_connector_duplicate_state drm_atomic_helper_connector_duplicate_state __drm_atomic_helper_connector_reset drm_atomic_helper_connector_reset __drm_atomic_helper_crtc_destroy_state drm_atomic_helper_crtc_destroy_state __drm_atomic_helper_crtc_duplicate_state drm_atomic_helper_crtc_duplicate_state __drm_atomic_helper_crtc_reset drm_atomic_helper_crtc_reset drm_atomic_helper_disable_plane drm_atomic_helper_legacy_gamma_set drm_atomic_helper_page_flip __drm_atomic_helper_plane_destroy_state drm_atomic_helper_plane_destroy_state __drm_atomic_helper_plane_duplicate_state drm_atomic_helper_plane_duplicate_state __drm_atomic_helper_plane_reset drm_atomic_helper_plane_reset drm_atomic_helper_prepare_planes __drm_atomic_helper_private_obj_duplicate_state drm_atomic_helper_resume drm_atomic_helper_set_config drm_atomic_helper_setup_commit drm_atomic_helper_shutdown drm_atomic_helper_suspend drm_atomic_helper_swap_state drm_atomic_helper_update_legacy_modeset_state drm_atomic_helper_update_plane drm_atomic_helper_wait_for_dependencies drm_atomic_helper_wait_for_fences drm_atomic_helper_wait_for_flip_done drm_atomic_private_obj_fini drm_atomic_private_obj_init drm_atomic_state_alloc drm_atomic_state_clear drm_atomic_state_default_clear drm_atomic_state_default_release __drm_atomic_state_free drm_atomic_state_init drm_compat_ioctl drm_connector_attach_dp_subconnector_property drm_connector_attach_encoder drm_connector_attach_max_bpc_property drm_connector_attach_vrr_capable_property drm_connector_cleanup drm_connector_init drm_connector_init_with_ddc drm_connector_list_iter_begin drm_connector_list_iter_end drm_connector_list_iter_next drm_connector_register drm_connector_set_path_property drm_connector_set_vrr_capable_property drm_connector_unregister drm_connector_update_edid_property drm_crtc_accurate_vblank_count drm_crtc_add_crc_entry drm_crtc_arm_vblank_event drm_crtc_cleanup __drm_crtc_commit_free drm_crtc_enable_color_mgmt drm_crtc_from_index drm_crtc_handle_vblank drm_crtc_helper_set_config drm_crtc_helper_set_mode drm_crtc_init drm_crtc_init_with_planes drm_crtc_send_vblank_event drm_crtc_vblank_count drm_crtc_vblank_get drm_crtc_vblank_helper_get_vblank_timestamp drm_crtc_vblank_helper_get_vblank_timestamp_internal drm_crtc_vblank_off drm_crtc_vblank_on drm_crtc_vblank_put drm_cvt_mode __drm_dbg __drm_debug drm_debugfs_create_files drm_detect_hdmi_monitor drm_detect_monitor_audio drm_dev_alloc drm_dev_dbg drm_dev_enter drm_dev_exit drm_dev_printk drm_dev_put drm_dev_register drm_dev_unplug drm_dev_unregister drm_dp_atomic_find_vcpi_slots drm_dp_atomic_release_vcpi_slots drm_dp_aux_init drm_dp_aux_register drm_dp_aux_unregister drm_dp_bw_code_to_link_rate drm_dp_calc_pbn_mode drm_dp_cec_irq drm_dp_cec_register_connector drm_dp_cec_set_edid drm_dp_cec_unregister_connector drm_dp_cec_unset_edid drm_dp_channel_eq_ok drm_dp_check_act_status drm_dp_clock_recovery_ok drm_dp_downstream_max_dotclock drm_dp_dpcd_read drm_dp_dpcd_read_link_status drm_dp_dpcd_write drm_dp_find_vcpi_slots drm_dp_get_adjust_request_pre_emphasis drm_dp_get_adjust_request_voltage drm_dp_link_rate_to_bw_code drm_dp_link_train_channel_eq_delay drm_dp_link_train_clock_recovery_delay drm_dp_mst_add_affected_dsc_crtcs drm_dp_mst_allocate_vcpi drm_dp_mst_atomic_check drm_dp_mst_atomic_enable_dsc drm_dp_mst_connector_early_unregister drm_dp_mst_connector_late_register drm_dp_mst_deallocate_vcpi drm_dp_mst_detect_port drm_dp_mst_dsc_aux_for_port drm_dp_mst_dump_topology drm_dp_mst_get_edid drm_dp_mst_get_port_malloc drm_dp_mst_hpd_irq drm_dp_mst_put_port_malloc drm_dp_mst_reset_vcpi_slots drm_dp_mst_topology_mgr_destroy drm_dp_mst_topology_mgr_init drm_dp_mst_topology_mgr_resume drm_dp_mst_topology_mgr_set_mst drm_dp_mst_topology_mgr_suspend drm_dp_read_desc drm_dp_read_downstream_info drm_dp_read_dpcd_caps drm_dp_read_mst_cap drm_dp_read_sink_count drm_dp_read_sink_count_cap drm_dp_send_real_edid_checksum drm_dp_set_subconnector_property drm_dp_start_crc drm_dp_stop_crc drm_dp_update_payload_part1 drm_dp_update_payload_part2 drm_dsc_compute_rc_parameters drm_dsc_pps_payload_pack drm_edid_header_is_valid drm_edid_is_valid drm_edid_to_sad drm_edid_to_speaker_allocation drm_encoder_cleanup drm_encoder_init __drm_err drm_fb_helper_alloc_fbi drm_fb_helper_blank drm_fb_helper_cfb_copyarea drm_fb_helper_cfb_fillrect drm_fb_helper_cfb_imageblit drm_fb_helper_check_var drm_fb_helper_debug_enter drm_fb_helper_debug_leave drm_fb_helper_fill_info drm_fb_helper_fini drm_fb_helper_hotplug_event drm_fb_helper_init drm_fb_helper_initial_config drm_fb_helper_ioctl drm_fb_helper_lastclose drm_fb_helper_output_poll_changed drm_fb_helper_pan_display drm_fb_helper_prepare drm_fb_helper_setcmap drm_fb_helper_set_par drm_fb_helper_set_suspend drm_fb_helper_set_suspend_unlocked drm_fb_helper_sys_copyarea drm_fb_helper_sys_fillrect drm_fb_helper_sys_imageblit drm_fb_helper_unregister_fbi drm_format_info drm_framebuffer_cleanup drm_framebuffer_init drm_framebuffer_unregister_private drm_gem_dmabuf_mmap drm_gem_dmabuf_release drm_gem_dmabuf_vmap drm_gem_dmabuf_vunmap drm_gem_fb_create_handle drm_gem_fb_destroy drm_gem_handle_create drm_gem_handle_delete drm_gem_map_attach drm_gem_map_detach drm_gem_map_dma_buf drm_gem_object_free drm_gem_object_init drm_gem_object_lookup drm_gem_object_release drm_gem_prime_export drm_gem_prime_fd_to_handle drm_gem_prime_handle_to_fd drm_gem_prime_import drm_gem_private_object_init drm_gem_unmap_dma_buf drm_get_connector_status_name drm_get_edid drm_get_edid_switcheroo drm_get_format_info drm_get_format_name drm_handle_vblank drm_hdmi_avi_infoframe_from_display_mode drm_hdmi_infoframe_set_hdr_metadata drm_hdmi_vendor_infoframe_from_display_mode drm_helper_connector_dpms drm_helper_disable_unused_functions drm_helper_force_disable_all drm_helper_hpd_irq_event drm_helper_mode_fill_fb_struct drm_helper_probe_detect drm_helper_probe_single_connector_modes drm_helper_resume_force_mode drm_i2c_encoder_detect drm_i2c_encoder_init drm_i2c_encoder_mode_fixup drm_i2c_encoder_restore drm_i2c_encoder_save drm_invalid_op drm_ioctl drm_irq_install drm_irq_uninstall drm_is_current_master drm_kms_helper_hotplug_event drm_kms_helper_is_poll_worker drm_kms_helper_poll_disable drm_kms_helper_poll_enable drm_kms_helper_poll_fini drm_kms_helper_poll_init drm_match_cea_mode drm_mm_init drm_mm_insert_node_in_range drmm_mode_config_init drm_mm_print drm_mm_remove_node drm_mm_takedown drm_mode_config_cleanup drm_mode_config_reset drm_mode_copy drm_mode_create_dvi_i_properties drm_mode_create_scaling_mode_property drm_mode_create_tv_properties drm_mode_crtc_set_gamma_size drm_mode_debug_printmodeline drm_mode_destroy drm_mode_duplicate drm_mode_equal drm_mode_get_hv_timing drm_mode_is_420_also drm_mode_is_420_only drm_mode_legacy_fb_format drm_mode_object_find drm_mode_object_put drm_mode_probed_add drm_modeset_acquire_fini drm_modeset_acquire_init drm_modeset_backoff drm_mode_set_crtcinfo drm_modeset_drop_locks drm_modeset_lock drm_modeset_lock_all drm_modeset_lock_all_ctx drm_modeset_lock_single_interruptible drm_mode_set_name drm_modeset_unlock drm_modeset_unlock_all drm_mode_sort drm_mode_vrefresh drm_need_swiotlb drm_object_attach_property drm_object_property_set_value drm_open drm_plane_cleanup drm_plane_create_alpha_property drm_plane_create_blend_mode_property drm_plane_create_color_properties drm_plane_create_rotation_property drm_plane_create_zpos_immutable_property drm_plane_create_zpos_property drm_plane_force_disable drm_plane_init drm_poll drm_primary_helper_destroy drm_primary_helper_funcs drm_prime_gem_destroy drm_prime_pages_to_sg drm_prime_sg_to_page_addr_arrays drm_printf __drm_printfn_seq_file drm_property_add_enum drm_property_create drm_property_create_enum drm_property_create_range __drm_puts_seq_file drm_read drm_release drm_scdc_read drm_scdc_write drm_sched_dependency_optimized drm_sched_entity_destroy drm_sched_entity_fini drm_sched_entity_flush drm_sched_entity_init drm_sched_entity_modify_sched drm_sched_entity_push_job drm_sched_entity_set_priority drm_sched_fault drm_sched_fini drm_sched_increase_karma drm_sched_init drm_sched_job_cleanup drm_sched_job_init drm_sched_pick_best drm_sched_resubmit_jobs drm_sched_start drm_sched_stop drm_sched_suspend_timeout drm_send_event_locked drm_syncobj_add_point drm_syncobj_create drm_syncobj_find drm_syncobj_find_fence drm_syncobj_free drm_syncobj_get_fd drm_syncobj_get_handle drm_syncobj_replace_fence drm_universal_plane_init drm_vblank_init drm_vblank_work_cancel_sync drm_vblank_work_init drm_vblank_work_schedule drm_vma_node_allow drm_vma_node_is_allowed drm_vma_node_revoke dst_init dst_release dump_stack __dynamic_dev_dbg __dynamic_ibdev_dbg __dynamic_netdev_dbg __dynamic_pr_debug efi elfcorehdr_addr emergency_restart empty_zero_page enable_irq errno_to_blk_status ether_setup eth_get_headlen eth_mac_addr eth_platform_get_mac_address ethtool_convert_legacy_u32_to_link_mode ethtool_convert_link_mode_to_legacy_u32 __ethtool_get_link_ksettings ethtool_intersect_link_masks ethtool_op_get_link ethtool_op_get_ts_info ethtool_rx_flow_rule_create ethtool_rx_flow_rule_destroy eth_type_trans eth_validate_addr eventfd_ctx_fdget eventfd_ctx_fileget eventfd_ctx_put eventfd_fget eventfd_signal event_triggers_call ex_handler_default fasync_helper fc_attach_transport fc_block_scsi_eh fc_disc_config fc_disc_init fc_eh_host_reset fc_eh_timed_out fc_elsct_init fc_elsct_send fc_exch_init fc_exch_mgr_alloc fc_exch_mgr_free fc_exch_mgr_list_clone fc_exch_recv fc_fabric_login fc_fabric_logoff _fc_frame_alloc fc_frame_alloc_fill fc_get_event_number fc_get_host_port_state fc_get_host_speed fc_get_host_stats fc_host_fpin_rcv fc_host_post_event fc_host_post_vendor_event fc_lport_bsg_request fc_lport_config fc_lport_destroy fc_lport_flogi_resp fc_lport_init fc_lport_logo_resp fc_lport_reset fcoe_check_wait_queue fcoe_clean_pending_queue fcoe_ctlr_destroy fcoe_ctlr_device_add fcoe_ctlr_device_delete fcoe_ctlr_els_send fcoe_ctlr_get_lesb fcoe_ctlr_init fcoe_ctlr_link_down fcoe_ctlr_link_up fcoe_ctlr_recv fcoe_ctlr_recv_flogi fcoe_fc_crc fcoe_fcf_get_selected __fcoe_get_lesb fcoe_get_lesb fcoe_get_paged_crc_eof fcoe_get_wwn fcoe_libfc_config fcoe_link_speed_update fcoe_queue_timer fcoe_start_io fcoe_transport_attach fcoe_transport_detach fcoe_validate_vport_create fcoe_wwn_from_mac fcoe_wwn_to_str fc_release_transport fc_remote_port_add fc_remote_port_delete fc_remote_port_rolechg fc_remove_host fc_rport_create fc_rport_destroy fc_rport_login fc_rport_logoff fc_rport_lookup fc_rport_terminate_io fc_set_mfs fc_set_rport_loss_tmo fc_slave_alloc fc_vport_create fc_vport_id_lookup fc_vport_setlink fc_vport_terminate __fdget fd_install __fentry__ fget __fib_lookup fib_table_lookup filemap_fault filp_close filp_open find_first_bit find_first_zero_bit find_get_pid find_last_bit find_next_bit find_next_zero_bit find_pid_ns find_vma finish_wait firmware_request_nowarn fixed_size_llseek flow_block_cb_alloc flow_block_cb_lookup flow_block_cb_setup_simple flow_indr_block_cb_alloc flow_indr_dev_register flow_indr_dev_unregister flow_keys_basic_dissector flow_keys_dissector flow_resources_add flow_resources_alloc flow_rule_match_basic flow_rule_match_control flow_rule_match_cvlan flow_rule_match_enc_control flow_rule_match_enc_ip flow_rule_match_enc_ipv4_addrs flow_rule_match_enc_ipv6_addrs flow_rule_match_enc_keyid flow_rule_match_enc_opts flow_rule_match_enc_ports flow_rule_match_eth_addrs flow_rule_match_icmp flow_rule_match_ip flow_rule_match_ipv4_addrs flow_rule_match_ipv6_addrs flow_rule_match_meta flow_rule_match_mpls flow_rule_match_ports flow_rule_match_tcp flow_rule_match_vlan flush_delayed_work flush_signals flush_work flush_workqueue follow_pfn force_sig fortify_panic fput free_cpumask_var free_fib_info free_irq free_irq_cpu_rmap free_netdev __free_pages free_pages free_percpu from_kgid from_kgid_munged from_kuid from_kuid_munged fs_bio_set __f_setown full_name_hash fwnode_property_read_string fwnode_property_read_u32_array fwnode_property_read_u8_array gcd generate_random_uuid generic_file_llseek generic_handle_irq genlmsg_put genl_notify genl_register_family genl_unregister_family genphy_read_status genphy_restart_aneg gen_pool_add_owner gen_pool_alloc_algo_owner gen_pool_create gen_pool_destroy gen_pool_free_owner gen_pool_virt_to_phys get_cpu_idle_time get_cpu_idle_time_us get_cpu_iowait_time_us get_device get_device_system_crosststamp __get_free_pages get_net_ns_by_fd get_net_ns_by_pid get_phy_device get_pid_task get_random_bytes __get_task_comm get_task_mm get_task_pid get_unused_fd_flags __get_user_2 __get_user_4 __get_user_8 get_user_pages get_user_pages_fast get_user_pages_longterm get_user_pages_remote get_zeroed_page gre_add_protocol gre_del_protocol groups_alloc groups_free guid_parse handle_simple_irq hdmi_avi_infoframe_pack hdmi_drm_infoframe_pack_only hdmi_infoframe_pack hest_disable hex_to_bin hrtimer_cancel hrtimer_forward hrtimer_init hrtimer_start_range_ns hrtimer_try_to_cancel __hw_addr_sync_dev __hw_addr_unsync_dev hwmon_device_register hwmon_device_register_with_groups hwmon_device_register_with_info hwmon_device_unregister hyperv_read_cfg_blk hyperv_reg_block_invalidate hyperv_write_cfg_blk i2c_add_adapter i2c_add_numbered_adapter i2c_bit_add_bus i2c_bit_algo i2c_del_adapter i2c_generic_scl_recovery i2c_new_client_device i2c_recover_bus i2c_smbus_read_byte_data i2c_smbus_write_byte_data i2c_transfer i2c_unregister_device __ib_alloc_cq _ib_alloc_device __ib_alloc_pd ib_attach_mcast ib_cache_gid_parse_type_str ib_cache_gid_type_str ib_cancel_mad ib_cm_init_qp_attr ib_cm_insert_listen ib_cm_listen ib_cm_notify ibcm_reject_msg ib_copy_ah_attr_to_user ib_copy_path_rec_from_user ib_copy_path_rec_to_user ib_copy_qp_attr_to_user ib_create_ah_from_wc ib_create_cm_id __ib_create_cq ib_create_qp ib_create_qp_security ib_create_send_mad ib_create_srq_user ib_dealloc_device ib_dealloc_pd_user ib_dealloc_xrcd_user ib_dereg_mr_user ib_destroy_cm_id ib_destroy_cq_user ib_destroy_qp_user ib_destroy_srq_user ib_detach_mcast ibdev_err ib_device_get_by_netdev ib_device_put ib_device_set_netdev ibdev_info ibdev_warn ib_dispatch_event ib_drain_qp ib_event_msg ib_find_cached_pkey ib_free_cq ib_free_recv_mad ib_free_send_mad ib_get_cached_pkey ib_get_cached_port_state ib_get_eth_speed ib_get_gids_from_rdma_hdr ib_get_mad_data_offset ib_get_net_dev_by_params ib_get_rdma_header_version ib_get_rmpp_segment ib_init_ah_attr_from_path ib_init_ah_attr_from_wc ib_init_ah_from_mcmember ib_is_mad_class_rmpp ib_mad_kernel_rmpp_agent ib_map_mr_sg ib_modify_mad ib_modify_port ib_modify_qp ib_modify_qp_is_ok ib_modify_qp_with_udata ib_mr_pool_destroy ib_mr_pool_get ib_mr_pool_init ib_mr_pool_put ibnl_put_attr ibnl_put_msg ib_open_qp ib_post_send_mad ib_process_cq_direct ib_query_pkey ib_query_port ib_query_qp ib_query_srq ib_rdmacg_try_charge ib_rdmacg_uncharge ib_register_client ib_register_device ib_register_event_handler ib_register_mad_agent ib_response_mad ib_sa_cancel_query ib_sa_free_multicast ib_sa_get_mcmember_rec ib_sa_guid_info_rec_query ib_sa_join_multicast ib_sa_pack_path ib_sa_path_rec_get ib_sa_register_client ib_sa_sendonly_fullmem_support ib_sa_unpack_path ib_sa_unregister_client ib_send_cm_drep ib_send_cm_dreq ib_send_cm_mra ib_send_cm_rej ib_send_cm_rep ib_send_cm_req ib_send_cm_rtu ib_send_cm_sidr_rep ib_send_cm_sidr_req ib_set_client_data ib_set_device_ops ib_sg_to_pages ib_ud_header_init ib_ud_header_pack ib_ud_ip4_csum ib_umem_copy_from ib_umem_find_best_pgsz ib_umem_get ib_umem_odp_alloc_child ib_umem_odp_alloc_implicit ib_umem_odp_get ib_umem_odp_map_dma_and_lock ib_umem_odp_release ib_umem_odp_unmap_dma_pages ib_umem_release ib_unregister_client ib_unregister_device ib_unregister_device_queued ib_unregister_driver ib_unregister_event_handler ib_unregister_mad_agent ib_uverbs_flow_resources_free ib_uverbs_get_ucontext_file ib_wc_status_msg __icmp_send icmpv6_send ida_alloc_range ida_destroy ida_free idr_alloc idr_alloc_cyclic idr_alloc_u32 idr_destroy idr_find idr_for_each idr_get_next idr_get_next_ul idr_preload idr_remove idr_replace igrab in4_pton in6_dev_finish_destroy in6_pton in_aton in_dev_finish_destroy in_egroup_p __inet6_lookup_established inet_addr_is_any inet_confirm_addr inet_get_local_port_range __inet_lookup_established inet_proto_csum_replace16 inet_proto_csum_replace4 inet_pton_with_scope in_group_p init_net __init_rwsem init_srcu_struct __init_swait_queue_head init_task init_timer_key init_uts_ns init_wait_entry __init_waitqueue_head input_close_device input_open_device input_register_handle input_register_handler input_unregister_handle input_unregister_handler interval_tree_insert interval_tree_iter_first interval_tree_iter_next interval_tree_remove int_to_scsilun iomem_resource iommu_get_domain_for_dev iommu_group_add_device iommu_group_alloc iommu_group_get iommu_group_id iommu_group_put iommu_group_remove_device iommu_iova_to_phys iommu_map iommu_unmap ioread16 ioread16be ioread32 ioread32be ioread8 ioremap ioremap_cache ioremap_wc io_schedule io_schedule_timeout iounmap iov_iter_advance iov_iter_bvec iov_iter_init iov_iter_npages iowrite16 iowrite32 iowrite32be __iowrite32_copy __iowrite64_copy iowrite8 ip6_dst_hoplimit ip6_local_out ip6_route_output_flags ip_compute_csum ip_defrag __ip_dev_find ip_do_fragment ip_local_out __ip_mc_dec_group ip_mc_inc_group ipmi_add_smi ipmi_create_user ipmi_destroy_user ipmi_free_recv_msg ipmi_poll_interface ipmi_request_settime ipmi_set_gets_events ipmi_set_my_address ipmi_smi_msg_received ipmi_unregister_smi ipmi_validate_addr ip_route_output_flow __ip_select_ident ip_send_check ip_set_get_byname ip_set_put_byindex ip_tos2prio ip_tunnel_get_stats64 iput __ipv6_addr_type ipv6_chk_addr ipv6_ext_hdr ipv6_find_hdr ipv6_mod_enabled ipv6_skip_exthdr ipv6_stub ip_vs_proto_name irq_cpu_rmap_add irq_create_mapping_affinity __irq_domain_add irq_domain_remove irq_find_mapping irq_get_irq_data irq_modify_status irq_poll_complete irq_poll_disable irq_poll_enable irq_poll_init irq_poll_sched irq_set_affinity_hint irq_set_affinity_notifier irq_set_chip_and_handler_name irq_to_desc is_acpi_data_node is_acpi_device_node iscsi_block_scsi_eh iscsi_block_session iscsi_boot_create_ethernet iscsi_boot_create_host_kset iscsi_boot_create_initiator iscsi_boot_create_target iscsi_boot_destroy_kset __iscsi_complete_pdu iscsi_complete_pdu iscsi_complete_scsi_task iscsi_conn_bind iscsi_conn_error_event iscsi_conn_failure iscsi_conn_get_addr_param iscsi_conn_get_param iscsi_conn_login_event iscsi_conn_send_pdu iscsi_conn_setup iscsi_conn_start iscsi_conn_stop iscsi_conn_teardown iscsi_create_endpoint iscsi_create_flashnode_conn iscsi_create_flashnode_sess iscsi_create_iface iscsi_destroy_all_flashnode iscsi_destroy_endpoint iscsi_destroy_flashnode_sess iscsi_destroy_iface iscsi_eh_abort iscsi_eh_cmd_timed_out iscsi_eh_device_reset iscsi_eh_recover_target iscsi_eh_session_reset iscsi_find_flashnode_conn iscsi_find_flashnode_sess iscsi_flashnode_bus_match iscsi_get_discovery_parent_name iscsi_get_ipaddress_state_name iscsi_get_port_speed_name iscsi_get_port_state_name iscsi_get_router_state_name __iscsi_get_task iscsi_host_add iscsi_host_alloc iscsi_host_for_each_session iscsi_host_free iscsi_host_get_param iscsi_host_remove iscsi_is_session_dev iscsi_is_session_online iscsi_itt_to_task iscsi_lookup_endpoint iscsi_offload_mesg iscsi_ping_comp_event iscsi_post_host_event __iscsi_put_task iscsi_put_task iscsi_queuecommand iscsi_register_transport iscsi_session_chkready iscsi_session_failure iscsi_session_get_param iscsi_session_recovery_timedout iscsi_session_setup iscsi_session_teardown iscsi_set_param iscsi_suspend_queue iscsi_switch_str_param iscsi_target_alloc iscsi_unblock_session iscsi_unregister_transport is_uv_system is_vmalloc_addr iterate_fd iw_cm_accept iw_cm_connect iw_cm_disconnect iw_cm_init_qp_attr iw_cm_listen iw_cm_reject iwcm_reject_msg iw_create_cm_id iw_destroy_cm_id jiffies jiffies_64 jiffies64_to_nsecs jiffies_to_msecs jiffies_to_timespec64 jiffies_to_usecs kasprintf kernel_bind kernel_connect kernel_cpustat kernel_fpu_begin_mask kernel_fpu_end kernel_recvmsg kernel_sendmsg kernel_sock_shutdown kernel_write kexec_crash_loaded __kfifo_alloc __kfifo_free kfree kfree_const kfree_sensitive kfree_skb kfree_skb_list kfree_skb_partial kgdb_active kgdb_breakpoint kill_fasync __kmalloc kmalloc_caches __kmalloc_node kmalloc_order_trace kmem_cache_alloc kmem_cache_alloc_node kmem_cache_alloc_node_trace kmem_cache_alloc_trace kmem_cache_create kmem_cache_create_usercopy kmem_cache_destroy kmem_cache_free kmem_cache_shrink kmemdup kobject_add kobject_create_and_add kobject_del kobject_get kobject_init kobject_init_and_add kobject_put kobject_set_name kobject_uevent kobject_uevent_env krealloc kset_create_and_add kset_find_obj kset_register kset_unregister ksize kstrdup kstrdup_const kstrndup kstrtobool kstrtobool_from_user kstrtoint kstrtoint_from_user kstrtoll kstrtoll_from_user kstrtou16 kstrtou8 kstrtouint kstrtouint_from_user kstrtoul_from_user kstrtoull kstrtoull_from_user ksys_sync_helper kthread_bind kthread_create_on_node kthread_create_worker kthread_destroy_worker kthread_park kthread_queue_work kthread_should_stop kthread_stop kthread_unpark kthread_unuse_mm kthread_use_mm ktime_get ktime_get_coarse_real_ts64 ktime_get_mono_fast_ns ktime_get_raw ktime_get_raw_ts64 ktime_get_real_seconds ktime_get_real_ts64 ktime_get_seconds ktime_get_ts64 ktime_get_with_offset kvasprintf kvfree kvfree_call_rcu kvmalloc_node lcm led_classdev_register_ext led_classdev_resume led_classdev_suspend led_classdev_unregister libfc_vport_create __list_add_valid __list_del_entry_valid list_sort llist_add_batch __local_bh_enable_ip __lock_page lock_page_memcg lockref_get lock_sock_nested make_kgid make_kuid map_destroy mark_page_accessed match_hex match_int match_strdup match_string match_token match_u64 mdev_dev mdev_from_dev mdev_get_drvdata mdev_parent_dev mdev_register_device mdev_set_drvdata mdev_unregister_device mdev_uuid mdio45_probe mdiobus_alloc_size mdiobus_free mdiobus_get_phy mdiobus_read __mdiobus_register mdiobus_unregister mdiobus_write mdio_mii_ioctl memchr memchr_inv memcmp memcpy memcpy_fromio memcpy_toio memdup_user memdup_user_nul memmove memory_read_from_buffer memparse mempool_alloc mempool_alloc_slab mempool_create mempool_create_node mempool_destroy mempool_free mempool_free_slab mempool_kfree mempool_kmalloc memscan mem_section memset memset_io metadata_dst_alloc mfd_add_devices mfd_remove_devices misc_deregister misc_register __mmdrop mm_kobj mmput mmu_interval_notifier_insert mmu_interval_notifier_remove mmu_notifier_call_srcu mmu_notifier_put __mmu_notifier_register mmu_notifier_register mmu_notifier_synchronize mmu_notifier_unregister mod_delayed_work_on mod_timer mod_timer_pending __module_get module_layout module_put module_refcount mpi_alloc mpi_free mpi_get_buffer mpi_powm mpi_read_raw_data __msecs_to_jiffies msleep msleep_interruptible mtd_device_parse_register mtd_device_unregister __mutex_init mutex_is_locked mutex_lock mutex_lock_interruptible mutex_lock_killable mutex_trylock mutex_unlock mxm_wmi_call_mxds mxm_wmi_call_mxmx mxm_wmi_supported napi_alloc_frag __napi_alloc_skb napi_complete_done napi_consume_skb napi_disable napi_get_frags napi_gro_flush napi_gro_frags napi_gro_receive __napi_schedule __napi_schedule_irqoff napi_schedule_prep __ndelay ndo_dflt_bridge_getlink ndo_dflt_fdb_add nd_tbl __neigh_create neigh_destroy __neigh_event_send neigh_lookup netdev_alloc_frag __netdev_alloc_skb netdev_bind_sb_channel_queue netdev_crit netdev_err netdev_features_change netdev_has_upper_dev_all_rcu netdev_info netdev_is_rx_handler_busy netdev_lower_get_next netdev_lower_get_next_private netdev_master_upper_dev_get netdev_master_upper_dev_get_rcu netdev_master_upper_dev_link netdev_notice netdev_pick_tx netdev_port_same_parent_id netdev_printk netdev_reset_tc netdev_rss_key_fill netdev_rx_handler_register netdev_rx_handler_unregister netdev_set_num_tc netdev_set_sb_channel netdev_set_tc_queue netdev_state_change netdev_stats_to_stats64 netdev_unbind_sb_channel netdev_update_features netdev_upper_dev_unlink netdev_walk_all_lower_dev_rcu netdev_walk_all_upper_dev_rcu netdev_warn net_dim net_dim_get_def_rx_moderation net_dim_get_def_tx_moderation net_dim_get_rx_moderation net_dim_get_tx_moderation netif_carrier_off netif_carrier_on netif_device_attach netif_device_detach netif_get_num_default_rss_queues netif_napi_add __netif_napi_del netif_receive_skb netif_rx netif_rx_ni netif_schedule_queue netif_set_real_num_rx_queues netif_set_real_num_tx_queues netif_set_xps_queue netif_tx_stop_all_queues netif_tx_wake_queue netlink_ack netlink_broadcast netlink_capable __netlink_dump_start netlink_has_listeners __netlink_kernel_create netlink_kernel_release netlink_ns_capable netlink_set_err netlink_unicast net_namespace_list net_ns_type_operations net_ratelimit net_rwsem nf_connlabels_get nf_connlabels_put nf_connlabels_replace nf_conntrack_alloc __nf_conntrack_confirm nf_conntrack_destroy nf_conntrack_eventmask_report nf_conntrack_expect_lock nf_conntrack_find_get nf_conntrack_free nf_conntrack_hash nf_conntrack_hash_check_insert __nf_conntrack_helper_find nf_conntrack_helper_put nf_conntrack_helper_try_module_get nf_conntrack_htable_size nf_conntrack_in nf_conntrack_locks nf_ct_delete nf_ct_deliver_cached_events nf_ct_expect_alloc __nf_ct_expect_find nf_ct_expect_find_get nf_ct_expect_hash nf_ct_expect_hsize nf_ct_expect_iterate_net nf_ct_expect_put nf_ct_expect_register_notifier nf_ct_expect_related_report nf_ct_expect_unregister_notifier nf_ct_ext_add nf_ct_frag6_gather nf_ct_get_tuplepr nf_ct_helper_expectfn_find_by_name nf_ct_helper_expectfn_find_by_symbol nf_ct_helper_ext_add nf_ct_invert_tuple nf_ct_iterate_cleanup_net nf_ct_l4proto_find nf_ct_nat_ext_add nf_ct_remove_expectations nf_ct_seq_adjust nf_ct_tmpl_alloc nf_ct_tmpl_free __nf_ct_try_assign_helper nf_ct_unlink_expect_report nf_ct_zone_dflt nf_ipv6_ops nf_nat_alloc_null_binding nf_nat_hook nf_nat_icmp_reply_translation nf_nat_icmpv6_reply_translation nf_nat_packet nf_nat_setup_info nfnetlink_has_listeners nfnetlink_send nfnetlink_set_err nfnetlink_subsys_register nfnetlink_subsys_unregister nfnl_lock nfnl_unlock nf_register_net_hook nf_register_net_hooks nf_unregister_net_hook nf_unregister_net_hooks nla_find nla_memcpy __nla_parse nla_policy_len __nla_put nla_put nla_put_64bit __nla_reserve nla_reserve nla_strlcpy __nla_validate __nlmsg_put node_data __node_distance node_states node_to_cpumask_map no_llseek nonseekable_open noop_llseek nr_cpu_ids nr_irqs nr_node_ids ns_capable nsecs_to_jiffies ns_to_kernel_old_timeval ns_to_timespec64 numa_node __num_online_cpus num_registered_fb nvidia_gpu_vfio nvme_alloc_request nvme_cancel_request nvme_change_ctrl_state nvme_cleanup_cmd nvme_complete_async_event nvme_complete_rq nvme_disable_ctrl nvme_enable_ctrl nvme_fc_rcv_ls_req nvme_fc_register_localport nvme_fc_register_remoteport nvme_fc_rescan_remoteport nvme_fc_set_remoteport_devloss nvme_fc_unregister_localport nvme_fc_unregister_remoteport nvme_get_features nvme_init_ctrl nvme_init_identify nvme_io_timeout nvme_kill_queues nvme_remove_namespaces nvme_reset_ctrl nvme_reset_ctrl_sync nvme_set_features nvme_set_queue_count nvme_setup_cmd nvme_shutdown_ctrl nvme_start_admin_queue nvme_start_ctrl nvme_start_freeze nvme_start_queues nvme_stop_admin_queue nvme_stop_ctrl nvme_stop_queues nvme_submit_sync_cmd nvme_sync_queues nvmet_fc_invalidate_host nvmet_fc_rcv_fcp_abort nvmet_fc_rcv_fcp_req nvmet_fc_rcv_ls_req nvmet_fc_register_targetport nvmet_fc_unregister_targetport nvme_try_sched_reset nvme_unfreeze nvme_uninit_ctrl nvme_wait_freeze nvme_wait_freeze_timeout nvme_wait_reset nvme_wq on_each_cpu_cond_mask orderly_poweroff out_of_line_wait_on_bit out_of_line_wait_on_bit_lock override_creds __page_file_index __page_frag_cache_drain page_frag_free __page_mapcount page_mapped page_offset_base page_pool_alloc_pages page_pool_create page_pool_destroy page_pool_put_page page_pool_release_page page_pool_update_nid pagevec_lookup_range pagevec_lookup_range_tag __pagevec_release panic panic_notifier_list param_array_ops param_get_int param_get_uint param_ops_bint param_ops_bool param_ops_byte param_ops_charp param_ops_hexint param_ops_int param_ops_long param_ops_short param_ops_string param_ops_uint param_ops_ullong param_ops_ulong param_ops_ushort param_set_bool param_set_int param_set_uint pat_enabled path_get path_put pci_aer_clear_nonfatal_status pci_alloc_irq_vectors_affinity pci_assign_unassigned_bus_resources pcibios_resource_to_bus pci_bus_read_config_dword pci_bus_resource_n pci_bus_type pci_cfg_access_lock pci_cfg_access_unlock pci_choose_state pci_clear_master pci_clear_mwi pci_d3cold_disable pci_dev_driver pci_dev_get pci_device_is_present pci_dev_present pci_dev_put pci_disable_device pci_disable_link_state pci_disable_msi pci_disable_msix pci_disable_pcie_error_reporting pci_disable_rom pci_disable_sriov pcie_aspm_enabled pcie_bandwidth_available pcie_capability_clear_and_set_word pcie_capability_read_dword pcie_capability_read_word pcie_capability_write_word pcie_flr pcie_get_mps pcie_get_speed_cap pcie_get_width_cap pci_enable_atomic_ops_to_root pci_enable_device pci_enable_device_mem pci_enable_msi pci_enable_msix_range pci_enable_pcie_error_reporting pci_enable_rom pci_enable_sriov pci_enable_wake pcie_print_link_status pcie_relaxed_ordering_enabled pcie_set_readrq pci_find_capability pci_find_ext_capability pci_free_irq pci_free_irq_vectors pci_get_class pci_get_device pci_get_domain_bus_and_slot pci_get_dsn pci_get_slot pci_ignore_hotplug pci_intx pci_iomap pci_ioremap_bar pci_iounmap pci_irq_get_affinity pci_irq_vector pci_load_saved_state pci_map_rom pci_match_id pcim_enable_device pcim_iomap pcim_iomap_regions pcim_iomap_table pcim_iounmap pci_msix_vec_count pci_num_vf pci_pr3_present pci_prepare_to_sleep pci_read_config_byte pci_read_config_dword pci_read_config_word pci_read_vpd __pci_register_driver pci_release_regions pci_release_resource pci_release_selected_regions pci_request_irq pci_request_regions pci_request_selected_regions pci_rescan_bus pci_reset_bus pci_resize_resource pci_restore_msi_state pci_restore_state pci_save_state pci_select_bars pci_set_master pci_set_mwi pci_set_power_state pci_sriov_configure_simple pci_sriov_get_totalvfs pci_sriov_set_totalvfs pci_stop_and_remove_bus_device pci_stop_and_remove_bus_device_locked pci_store_saved_state pci_try_set_mwi pci_unmap_rom pci_unregister_driver pci_vfs_assigned pci_vpd_find_info_keyword pci_vpd_find_tag pci_wait_for_pending_transaction pci_wake_from_d3 pci_walk_bus pci_write_config_byte pci_write_config_dword pci_write_config_word pcix_set_mmrbc PDE_DATA __per_cpu_offset percpu_ref_exit percpu_ref_init percpu_ref_kill_and_confirm perf_event_update_userpage perf_pmu_register perf_pmu_unregister perf_tp_event perf_trace_buf_alloc perf_trace_run_bpf_submit pgprot_writecombine phy_attach_direct phy_attached_info phy_connect phy_connect_direct phy_device_free phy_device_register phy_device_remove phy_disconnect phy_ethtool_ksettings_get phy_ethtool_ksettings_set phy_loopback phy_mii_ioctl phy_resume phys_base phy_set_asym_pause phy_set_max_speed physical_mask phy_start phy_start_aneg phy_stop phy_support_asym_pause phy_suspend phy_validate_pause pid_task pid_vnr platform_bus_type platform_device_register platform_device_register_full platform_device_unregister __platform_driver_register platform_driver_unregister platform_get_irq platform_get_resource platform_get_resource_byname pldmfw_flash_image pldmfw_op_pci_match_record pm_genpd_add_device pm_genpd_init pm_genpd_remove_device pm_power_off pm_runtime_allow pm_runtime_autosuspend_expiration __pm_runtime_disable pm_runtime_enable pm_runtime_forbid __pm_runtime_idle __pm_runtime_resume pm_runtime_set_autosuspend_delay __pm_runtime_set_status __pm_runtime_suspend __pm_runtime_use_autosuspend pm_schedule_suspend pm_suspend_global_flags pm_vt_switch_required pm_vt_switch_unregister power_supply_is_system_supplied prandom_bytes prandom_seed prandom_u32 __preempt_count prepare_creds prepare_to_wait prepare_to_wait_event prepare_to_wait_exclusive print_hex_dump printk __printk_ratelimit printk_timed_ratelimit proc_create proc_create_data proc_dointvec proc_dointvec_minmax proc_mkdir proc_mkdir_mode proc_remove proc_set_size proc_symlink __pskb_copy_fclone pskb_expand_head __pskb_pull_tail ___pskb_trim ptp_clock_event ptp_clock_index ptp_clock_register ptp_clock_unregister ptp_find_pin __put_cred put_device put_devmap_managed_page put_disk __put_net __put_page put_pid __put_task_struct put_unused_fd __put_user_1 __put_user_2 __put_user_4 __put_user_8 pv_ops qdisc_reset qed_get_eth_ops qed_put_eth_ops queue_delayed_work_on queued_read_lock_slowpath queued_write_lock_slowpath queue_work_on radix_tree_delete radix_tree_gang_lookup radix_tree_gang_lookup_tag radix_tree_insert radix_tree_iter_delete radix_tree_lookup radix_tree_lookup_slot radix_tree_next_chunk radix_tree_preload radix_tree_preloads radix_tree_tagged radix_tree_tag_set raid_class_attach raid_class_release ___ratelimit raw_notifier_call_chain raw_notifier_chain_register raw_notifier_chain_unregister _raw_read_lock _raw_read_lock_bh _raw_read_lock_irq _raw_read_lock_irqsave _raw_read_unlock_bh _raw_read_unlock_irqrestore _raw_spin_lock _raw_spin_lock_bh _raw_spin_lock_irq _raw_spin_lock_irqsave _raw_spin_trylock _raw_spin_unlock_bh _raw_spin_unlock_irqrestore _raw_write_lock _raw_write_lock_bh _raw_write_lock_irq _raw_write_lock_irqsave _raw_write_unlock_bh _raw_write_unlock_irqrestore rb_erase __rb_erase_color rb_first rb_first_postorder __rb_insert_augmented rb_insert_color rb_next rb_next_postorder rb_replace_node rcu_barrier rcu_read_unlock_strict rdma_accept rdma_addr_cancel rdma_addr_size rdma_addr_size_in6 rdma_addr_size_kss rdma_bind_addr __rdma_block_iter_next __rdma_block_iter_start rdmacg_register_device rdmacg_try_charge rdmacg_uncharge rdmacg_unregister_device rdma_connect rdma_consumer_reject_data rdma_copy_ah_attr rdma_copy_src_l2_addr rdma_create_ah __rdma_create_kernel_id rdma_create_qp rdma_create_user_ah rdma_destroy_ah_attr rdma_destroy_ah_user rdma_destroy_id rdma_destroy_qp rdma_disconnect rdma_event_msg rdma_find_gid rdma_find_gid_by_port rdma_get_gid_attr rdma_get_service_id rdma_init_qp_attr rdma_is_zero_gid rdma_join_multicast rdma_leave_multicast rdma_listen rdma_move_ah_attr rdma_nl_multicast rdma_nl_put_driver_string rdma_nl_put_driver_u32 rdma_nl_put_driver_u64 rdma_nl_register rdma_nl_stat_hwcounter_entry rdma_nl_unicast rdma_nl_unicast_wait rdma_nl_unregister rdma_node_get_transport rdma_notify rdma_port_get_link_layer rdma_put_gid_attr rdma_query_ah rdma_query_gid rdma_read_gid_hw_context rdma_read_gid_l2_fields rdma_read_gids rdma_reject rdma_reject_msg rdma_resolve_addr rdma_resolve_ip rdma_resolve_route rdma_restrack_add rdma_restrack_del rdma_roce_rescan_device rdma_rw_ctx_destroy rdma_rw_ctx_init rdma_rw_ctx_post rdma_rw_ctx_wrs rdma_set_afonly rdma_set_cq_moderation rdma_set_ib_path rdma_set_reuseaddr rdma_set_service_type rdma_translate_ip rdma_user_mmap_entry_get_pgoff rdma_user_mmap_entry_insert_range rdma_user_mmap_entry_put rdma_user_mmap_entry_remove rdma_user_mmap_io read_cache_pages recalc_sigpending refcount_dec_and_mutex_lock refcount_dec_if_one refcount_warn_saturate register_acpi_hed_notifier register_acpi_notifier register_blkdev __register_chrdev register_chrdev_region register_console register_die_notifier registered_fb register_fib_notifier register_inet6addr_notifier register_inetaddr_notifier register_ip_vs_scheduler register_kprobe register_lsm_notifier register_module_notifier register_netdev register_netdevice register_netdevice_notifier register_netdevice_notifier_dev_net register_netdevice_notifier_net register_netevent_notifier register_net_sysctl __register_nmi_handler register_oom_notifier register_pernet_device register_pernet_subsys register_reboot_notifier register_sysctl_table regmap_read regmap_write release_firmware release_pages __release_region release_sock remap_pfn_range remap_vmalloc_range remove_conflicting_framebuffers remove_conflicting_pci_framebuffers remove_proc_entry remove_wait_queue request_firmware request_firmware_direct request_firmware_nowait __request_module __request_region request_threaded_irq reservation_ww_class reset_devices revalidate_disk_size revert_creds rhashtable_destroy rhashtable_free_and_destroy rhashtable_init rhashtable_insert_slow rhashtable_walk_enter rhashtable_walk_exit rhashtable_walk_next rhashtable_walk_start_check rhashtable_walk_stop rhltable_init __rht_bucket_nested rht_bucket_nested rht_bucket_nested_insert ring_buffer_event_data roce_gid_type_mask_support round_jiffies round_jiffies_relative round_jiffies_up rps_cpu_mask rps_may_expire_flow rps_sock_flow_table rsa_parse_priv_key rsa_parse_pub_key rt6_lookup rtc_time64_to_tm rtnl_configure_link rtnl_create_link rtnl_is_locked rtnl_link_get_net rtnl_link_register rtnl_link_unregister rtnl_lock rtnl_nla_parse_ifla rtnl_trylock rtnl_unlock sas_alloc_slow_task sas_attach_transport sas_bios_param sas_change_queue_depth sas_disable_tlr sas_domain_attach_transport sas_drain_work sas_eh_device_reset_handler sas_eh_target_reset_handler sas_enable_tlr sas_end_device_alloc sas_expander_alloc sas_free_task sas_get_local_phy sas_ioctl sas_is_tlr_enabled sas_phy_add sas_phy_alloc sas_phy_delete sas_phy_free sas_phy_reset sas_port_add sas_port_add_phy sas_port_alloc_num sas_port_delete sas_port_delete_phy sas_port_free sas_prep_resume_ha sas_queuecommand sas_read_port_mode_page sas_register_ha sas_release_transport sas_remove_host sas_resume_ha sas_rphy_add sas_slave_configure sas_ssp_task_response sas_suspend_ha sas_target_alloc sas_target_destroy sas_unregister_ha sbitmap_queue_clear __sbitmap_queue_get scatterwalk_map_and_copy sched_clock sched_clock_cpu sched_set_fifo sched_set_fifo_low sched_set_normal schedule schedule_hrtimeout schedule_hrtimeout_range schedule_timeout schedule_timeout_interruptible schedule_timeout_uninterruptible __SCK__tp_func_dma_fence_emit __SCK__tp_func_nvme_sq __SCK__tp_func_xdp_exception scmd_printk scnprintf screen_info scsi_add_device scsi_add_host_with_dma scsi_block_requests scsi_build_sense_buffer scsi_change_queue_depth scsi_command_normalize_sense scsi_device_get scsi_device_lookup scsi_device_put scsi_device_set_state scsi_device_type scsi_dma_map scsi_dma_unmap __scsi_execute scsi_get_vpd_page scsi_host_alloc scsi_host_busy scsi_host_get scsi_host_lookup scsi_host_put scsi_internal_device_block_nowait scsi_internal_device_unblock_nowait scsi_is_fc_rport scsi_is_host_device scsi_is_sdev_device __scsi_iterate_devices scsilun_to_int scsi_normalize_sense scsi_print_command scsi_queue_work scsi_register_driver scsi_remove_device scsi_remove_host scsi_remove_target scsi_rescan_device scsi_sanitize_inquiry_string scsi_scan_host scsi_sense_key_string scsi_track_queue_full scsi_unblock_requests __SCT__tp_func_dma_fence_emit __SCT__tp_func_nvme_sq __SCT__tp_func_xdp_exception sdev_prefix_printk secpath_set secure_tcp_seq secure_tcpv6_seq security_d_instantiate security_ib_alloc_security security_ib_endport_manage_subnet security_ib_free_security security_ib_pkey_access security_release_secctx security_secid_to_secctx security_tun_dev_alloc_security security_tun_dev_attach security_tun_dev_attach_queue security_tun_dev_create security_tun_dev_free_security security_tun_dev_open send_sig send_sig_info seq_list_next seq_list_start seq_lseek seq_open seq_printf seq_putc seq_put_decimal_ull seq_puts seq_read seq_release seq_write set_cpus_allowed_ptr set_current_groups set_device_ro set_disk_ro set_freezable set_memory_uc set_memory_wb set_memory_wc set_normalized_timespec64 set_page_dirty set_page_dirty_lock set_user_nice sg_alloc_table sg_alloc_table_chained sg_alloc_table_from_pages sg_copy_from_buffer sg_copy_to_buffer sg_free_table sg_free_table_chained sg_init_table sgl_alloc sgl_free sg_miter_next sg_miter_start sg_miter_stop sg_nents sg_next __sg_page_iter_next __sg_page_iter_start sg_pcopy_from_buffer sg_pcopy_to_buffer sg_zero_buffer show_class_attr_string sigprocmask si_meminfo simple_attr_open simple_attr_read simple_attr_release simple_attr_write simple_open simple_read_from_buffer simple_strtol simple_strtoul simple_strtoull simple_write_to_buffer single_open single_release sk_alloc sk_attach_filter skb_add_rx_frag __skb_checksum skb_checksum __skb_checksum_complete skb_checksum_help skb_clone skb_clone_tx_timestamp skb_copy skb_copy_bits skb_copy_datagram_from_iter skb_copy_datagram_iter skb_copy_expand skb_copy_ubufs skb_dequeue skb_ensure_writable __skb_ext_del __skb_ext_put __skb_flow_dissect __skb_get_hash __skb_gso_segment skb_gso_validate_mac_len __skb_pad skb_partial_csum_set skb_pull skb_pull_rcsum skb_push skb_put skb_queue_purge skb_queue_tail skb_realloc_headroom __skb_recv_datagram skb_scrub_packet skb_set_owner_w skb_store_bits skb_trim skb_try_coalesce skb_tstamp_tx skb_tx_error skb_vlan_pop skb_vlan_push __skb_warn_lro_forwarding skb_zerocopy skb_zerocopy_headlen sk_detach_filter sk_filter_trim_cap sk_free skip_spaces sme_me_mask smp_call_function_many smp_call_function_single snprintf sn_rtc_cycles_per_second sock_alloc_send_pskb sock_create sock_create_kern sock_edemux sockfd_lookup sock_init_data sock_recv_errqueue sock_release sock_zerocopy_callback softnet_data sort sprintf sprint_symbol __srcu_read_lock __srcu_read_unlock sscanf __stack_chk_fail stack_trace_print stack_trace_save starget_for_each_device strcasecmp strcat strchr strcmp strcpy strcspn stream_open strim strlcat strlcpy strlen strncasecmp strncat strncmp strncpy strncpy_from_user strnlen strnlen_user strnstr strpbrk strrchr strscpy strscpy_pad strsep strspn strstr submit_bio submit_bio_noacct __sw_hweight32 __sw_hweight64 swiotlb_nr_tbl __symbol_get __symbol_put sync_file_create synchronize_irq synchronize_net synchronize_rcu synchronize_srcu sysfs_add_file_to_group sysfs_create_bin_file sysfs_create_file_ns sysfs_create_files sysfs_create_group sysfs_create_groups sysfs_create_link sysfs_format_mac sysfs_remove_bin_file sysfs_remove_file_from_group sysfs_remove_file_ns sysfs_remove_files sysfs_remove_group sysfs_remove_groups sysfs_remove_link sysfs_streq system_highpri_wq system_state system_unbound_wq system_wq sys_tz t10_pi_type1_crc t10_pi_type1_ip t10_pi_type3_crc t10_pi_type3_ip tap_get_socket task_active_pid_ns tasklet_init tasklet_kill __tasklet_schedule tasklet_setup __task_pid_nr_ns tcp_gro_complete tcp_hashinfo this_cpu_off time64_to_tm timecounter_cyc2time timecounter_init timecounter_read tls_get_record tls_validate_xmit_skb to_drm_sched_fence _totalram_pages trace_define_field trace_event_buffer_commit trace_event_buffer_lock_reserve trace_event_buffer_reserve trace_event_ignore_this_pid trace_event_raw_init trace_event_reg trace_handle_return __tracepoint_dma_fence_emit __tracepoint_nvme_sq __tracepoint_xdp_exception trace_print_array_seq trace_print_flags_seq trace_print_symbols_seq trace_raw_output_prep trace_seq_printf trace_seq_putc try_module_get try_wait_for_completion tsc_khz ttm_bo_bulk_move_lru_tail ttm_bo_device_init ttm_bo_device_release ttm_bo_dma_acc_size ttm_bo_eviction_valuable ttm_bo_evict_mm ttm_bo_glob ttm_bo_init ttm_bo_init_reserved ttm_bo_kmap ttm_bo_kunmap ttm_bo_lock_delayed_workqueue ttm_bo_mem_space ttm_bo_mmap ttm_bo_mmap_obj ttm_bo_move_accel_cleanup ttm_bo_move_memcpy ttm_bo_move_to_lru_tail ttm_bo_move_ttm ttm_bo_put ttm_bo_unlock_delayed_workqueue ttm_bo_validate ttm_bo_vm_access ttm_bo_vm_close ttm_bo_vm_fault_reserved ttm_bo_vm_open ttm_bo_vm_reserve ttm_bo_wait ttm_dma_page_alloc_debugfs ttm_dma_populate ttm_dma_tt_fini ttm_dma_tt_init ttm_dma_unpopulate ttm_eu_backoff_reservation ttm_eu_fence_buffer_objects ttm_eu_reserve_buffers ttm_page_alloc_debugfs ttm_pool_populate ttm_pool_unpopulate ttm_populate_and_map_pages ttm_range_man_fini ttm_range_man_init ttm_resource_free ttm_resource_manager_force_list_clean ttm_resource_manager_init ttm_sg_tt_init ttm_tt_destroy_common ttm_tt_fini ttm_tt_init ttm_tt_populate ttm_tt_set_placement_caching ttm_unmap_and_unpopulate_pages __udelay udp4_hwcsum udp4_lib_lookup_skb udp6_lib_lookup_skb udp_encap_enable udp_gro_complete udp_tunnel_nic_ops uio_event_notify __uio_register_device uio_unregister_device unlock_page unlock_page_memcg unmap_mapping_range unregister_acpi_hed_notifier unregister_acpi_notifier unregister_blkdev __unregister_chrdev unregister_chrdev_region unregister_console unregister_die_notifier unregister_fib_notifier unregister_inet6addr_notifier unregister_inetaddr_notifier unregister_ip_vs_scheduler unregister_kprobe unregister_lsm_notifier unregister_module_notifier unregister_netdev unregister_netdevice_many unregister_netdevice_notifier unregister_netdevice_notifier_dev_net unregister_netdevice_notifier_net unregister_netdevice_queue unregister_netevent_notifier unregister_net_sysctl_table unregister_nmi_handler unregister_oom_notifier unregister_pernet_device unregister_pernet_subsys unregister_reboot_notifier unregister_sysctl_table up up_read up_write __usecs_to_jiffies usleep_range uuid_gen uuid_null uuid_parse __uv_cpu_info _uverbs_alloc uverbs_copy_to uverbs_copy_to_struct_or_zero uverbs_destroy_def_handler uverbs_fd_class uverbs_finalize_uobj_create _uverbs_get_const uverbs_get_flags32 uverbs_get_flags64 uverbs_idr_class uverbs_uobject_fd_release uverbs_uobject_put __uv_hub_info_list uv_possible_blades uv_setup_irq uv_teardown_irq vfio_add_group_dev vfio_del_group_dev vfio_info_add_capability vfio_info_cap_shift vfio_pin_pages vfio_register_iommu_driver vfio_register_notifier vfio_set_irqs_validate_and_prepare vfio_unpin_pages vfio_unregister_iommu_driver vfio_unregister_notifier vfree vfs_fallocate vfs_fsync vfs_getattr vfs_statfs vga_client_register vgacon_text_force vga_remove_vgacon vga_set_legacy_decoding vga_switcheroo_client_fb_set vga_switcheroo_client_probe_defer vga_switcheroo_fini_domain_pm_ops vga_switcheroo_handler_flags vga_switcheroo_init_domain_pm_ops vga_switcheroo_lock_ddc vga_switcheroo_process_delayed_switch vga_switcheroo_register_client vga_switcheroo_register_handler vga_switcheroo_unlock_ddc vga_switcheroo_unregister_client vga_switcheroo_unregister_handler __virt_addr_valid vlan_dev_real_dev vlan_dev_vlan_id vlan_dev_vlan_proto __vlan_find_dev_deep_rcu __vmalloc vmalloc vmalloc_base vmalloc_node vmalloc_to_page vmalloc_user vmap vmemmap_base vm_get_page_prot vm_insert_page vm_insert_pfn_prot vm_mmap vm_munmap vm_zone_stat vprintk vscnprintf vsnprintf vsprintf vunmap vzalloc vzalloc_node wait_for_completion wait_for_completion_interruptible wait_for_completion_interruptible_timeout wait_for_completion_io_timeout wait_for_completion_killable wait_for_completion_timeout wait_on_page_bit __wake_up wake_up_bit __wake_up_locked wake_up_process __wake_up_sync_key __warn_printk wmi_evaluate_method wmi_has_guid work_busy write_cache_pages ww_mutex_lock ww_mutex_lock_interruptible ww_mutex_unlock x86_cpu_to_apicid __x86_indirect_thunk_r10 __x86_indirect_thunk_r11 __x86_indirect_thunk_r12 __x86_indirect_thunk_r13 __x86_indirect_thunk_r14 __x86_indirect_thunk_r15 __x86_indirect_thunk_r8 __x86_indirect_thunk_r9 __x86_indirect_thunk_rax __x86_indirect_thunk_rbp __x86_indirect_thunk_rbx __x86_indirect_thunk_rcx __x86_indirect_thunk_rdi __x86_indirect_thunk_rdx __x86_indirect_thunk_rsi __xa_alloc __xa_alloc_cyclic __xa_cmpxchg xa_destroy __xa_erase xa_erase xa_find xa_find_after __xa_insert xa_load __xa_store xa_store xdp_convert_zc_to_xdp_frame xdp_do_flush xdp_do_redirect xdp_return_frame xdp_return_frame_rx_napi xdp_rxq_info_is_reg xdp_rxq_info_reg xdp_rxq_info_reg_mem_model xdp_rxq_info_unreg xdp_rxq_info_unreg_mem_model xdp_rxq_info_unused xdp_warn xfrm_aead_get_byname xfrm_replay_seqhi xp_alloc xp_can_alloc xp_dma_map xp_dma_sync_for_cpu_slow xp_dma_sync_for_device_slow xp_dma_unmap xp_free xp_raw_get_data xp_raw_get_dma xp_set_rxq_info xsk_clear_rx_need_wakeup xsk_clear_tx_need_wakeup xsk_get_pool_from_qid xsk_set_rx_need_wakeup xsk_set_tx_need_wakeup xsk_tx_completed xsk_tx_peek_desc xsk_tx_release xsk_uses_need_wakeup xz_dec_end xz_dec_init xz_dec_run yield zalloc_cpumask_var zap_vma_ptes zerocopy_sg_from_iter zgid zlib_inflate zlib_inflateEnd zlib_inflateInit2 zlib_inflate_workspacesize .

1 0

[PATCH openEuler-1.0-LTS] mm: fix missing reclaim of low-reliable page cache
by Yang Yingliang 04 Mar '22

04 Mar '22

From: Chen Wandun <chenwandun(a)huawei.com> hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I4SK3S CVE: NA -------------------------------- Low-reliable memory is located in ZONE_MOVABLE, so gfp should contain GFP_HIGHMEM and GFP_MOVABLE when reclaim memory. Signed-off-by: Chen Wandun <chenwandun(a)huawei.com> Reviewed-by: Kefeng Wang <wangkefeng.wang(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- mm/vmscan.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 994c116306aa2..b6afafdef5075 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -4042,8 +4042,8 @@ unsigned long shrink_page_cache(gfp_t mask) { unsigned long nr_pages; - /* We reclaim the highmem zone too, it is useful for 32bit arch */ - nr_pages = __shrink_page_cache(mask | __GFP_HIGHMEM); + /* reclaim from movable zone */ + nr_pages = __shrink_page_cache(mask | __GFP_HIGHMEM | __GFP_MOVABLE); return nr_pages; } -- 2.25.1

1 0

[PATCH openEuler-1.0-LTS 1/5] mm: Fix reliable_debug in proc not consistent with boot parameter problem
by Yang Yingliang 04 Mar '22

04 Mar '22

From: Ma Wupeng <mawupeng1(a)huawei.com> hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4SK3S CVE: NA -------------------------------- Now reliable_debug will be consistent with boot parameter. If reliable_debug in boot parameter is set t "F", reliable_debug in proc will be 13 which means only fallback is closed. Fixes: 851a3ff0b4de ("mm: Introduce proc interface to control memory reliable features") Signed-off-by: Ma Wupeng <mawupeng1(a)huawei.com> Reviewed-by: Kefeng Wang <wangkefeng.wang(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- mm/mem_reliable.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/mm/mem_reliable.c b/mm/mem_reliable.c index ae4e9609f43cf..7ce97184e08ec 100644 --- a/mm/mem_reliable.c +++ b/mm/mem_reliable.c @@ -275,10 +275,8 @@ static void mem_reliable_parse_ctrl_bits(unsigned long ctrl_bits) for (i = MEM_RELIABLE_FALLBACK; i < MEM_RELIABLE_MAX; i++) { status = !!test_bit(i, &ctrl_bits); - if (mem_reliable_ctrl_bit_is_enabled(i) ^ status) { - mem_reliable_ctrl_bit_set(i, status); + if (mem_reliable_ctrl_bit_is_enabled(i) ^ status) mem_reliable_feature_set(i, status); - } } } @@ -484,6 +482,8 @@ static int __init reliable_sysctl_init(void) return 0; } late_initcall(reliable_sysctl_init); +#else +static void mem_reliable_ctrl_bit_set(int idx, bool enable) {} #endif static void mem_reliable_feature_set(int idx, bool enable) @@ -508,6 +508,7 @@ static void mem_reliable_feature_set(int idx, bool enable) return; } + mem_reliable_ctrl_bit_set(idx, enable); pr_info("%s is %s\n", str, enable ? "enabled" : "disabled"); } -- 2.25.1

1 4

[PATCH OLK-5.10] xhci: Fix a logic issue when display Zhaoxin XHCI root hub, speed
by LeoLiuoc 03 Mar '22

03 Mar '22

Fix a logic issue when display Zhaoxin XHCI root hub speed. Signed-off-by: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> --- drivers/usb/host/xhci.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 7f1e5296d..71dcc1ba7 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -5261,10 +5261,10 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) if (XHCI_EXT_PORT_PSIV(xhci->port_caps[j].psi[i]) >= 5) minor_rev = 1; } - if (minor_rev != 1) { - hcd->speed = HCD_USB3; - hcd->self.root_hub->speed = USB_SPEED_SUPER; - } + } + if (minor_rev != 1) { + hcd->speed = HCD_USB3; + hcd->self.root_hub->speed = USB_SPEED_SUPER; } } -- 2.20.1

1 0

[PATCH openEuler-5.10 1/4] rseq, ptrace: Add PTRACE_GET_RSEQ_CONFIGURATION request
by Zheng Zengkai 03 Mar '22

03 Mar '22

From: Piotr Figiel <figiel(a)google.com> mainline inclusion from mainline-5.13-rc1 commit 90f093fa8ea48e5d991332cee160b761423d55c1 category: feature feature: Userspace percpu bugzilla: https://gitee.com/openeuler/kernel/issues/I4W2BQ CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- For userspace checkpoint and restore (C/R) a way of getting process state containing RSEQ configuration is needed. There are two ways this information is going to be used: - to re-enable RSEQ for threads which had it enabled before C/R - to detect if a thread was in a critical section during C/R Since C/R preserves TLS memory and addresses RSEQ ABI will be restored using the address registered before C/R. Detection whether the thread is in a critical section during C/R is needed to enforce behavior of RSEQ abort during C/R. Attaching with ptrace() before registers are dumped itself doesn't cause RSEQ abort. Restoring the instruction pointer within the critical section is problematic because rseq_cs may get cleared before the control is passed to the migrated application code leading to RSEQ invariants not being preserved. C/R code will use RSEQ ABI address to find the abort handler to which the instruction pointer needs to be set. To achieve above goals expose the RSEQ ABI address and the signature value with the new ptrace request PTRACE_GET_RSEQ_CONFIGURATION. This new ptrace request can also be used by debuggers so they are aware of stops within restartable sequences in progress. Signed-off-by: Piotr Figiel <figiel(a)google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz(a)infradead.org> Signed-off-by: Thomas Gleixner <tglx(a)linutronix.de> Reviewed-by: Michal Miroslaw <emmir(a)google.com> Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers(a)efficios.com> Acked-by: Oleg Nesterov <oleg(a)redhat.com> Link: https://lkml.kernel.org/r/20210226135156.1081606-1-figiel@google.com Signed-off-by: Yunfeng Ye <yeyunfeng(a)huawei.com> Reviewed-by: Chao Liu <liuchao173(a)huawei.com> Reviewed-by: Kuohai Xu <xukuohai(a)huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> --- include/uapi/linux/ptrace.h | 10 ++++++++++ kernel/ptrace.c | 25 +++++++++++++++++++++++++ 2 files changed, 35 insertions(+) diff --git a/include/uapi/linux/ptrace.h b/include/uapi/linux/ptrace.h index 83ee45fa634b..3747bf816f9a 100644 --- a/include/uapi/linux/ptrace.h +++ b/include/uapi/linux/ptrace.h @@ -102,6 +102,16 @@ struct ptrace_syscall_info { }; }; +#define PTRACE_GET_RSEQ_CONFIGURATION 0x420f + +struct ptrace_rseq_configuration { + __u64 rseq_abi_pointer; + __u32 rseq_abi_size; + __u32 signature; + __u32 flags; + __u32 pad; +}; + /* * These values are stored in task->ptrace_message * by tracehook_report_syscall_* to describe the current syscall-stop. diff --git a/kernel/ptrace.c b/kernel/ptrace.c index 0087ce50d99e..e3210358bcd2 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -31,6 +31,7 @@ #include <linux/cn_proc.h> #include <linux/compat.h> #include <linux/sched/signal.h> +#include <linux/minmax.h> #include <asm/syscall.h> /* for syscall_get_* */ @@ -795,6 +796,24 @@ static int ptrace_peek_siginfo(struct task_struct *child, return ret; } +#ifdef CONFIG_RSEQ +static long ptrace_get_rseq_configuration(struct task_struct *task, + unsigned long size, void __user *data) +{ + struct ptrace_rseq_configuration conf = { + .rseq_abi_pointer = (u64)(uintptr_t)task->rseq, + .rseq_abi_size = sizeof(*task->rseq), + .signature = task->rseq_sig, + .flags = 0, + }; + + size = min_t(unsigned long, size, sizeof(conf)); + if (copy_to_user(data, &conf, size)) + return -EFAULT; + return sizeof(conf); +} +#endif + #ifdef PTRACE_SINGLESTEP #define is_singlestep(request) ((request) == PTRACE_SINGLESTEP) #else @@ -1243,6 +1262,12 @@ int ptrace_request(struct task_struct *child, long request, ret = seccomp_get_metadata(child, addr, datavp); break; +#ifdef CONFIG_RSEQ + case PTRACE_GET_RSEQ_CONFIGURATION: + ret = ptrace_get_rseq_configuration(child, addr, datavp); + break; +#endif + default: break; } -- 2.20.1

1 3

[PATCH OLK-5.10 v2] configs: disable CONFIG_RODATA_FULL_DEFAULT_ENABLED
by Chao Liu 03 Mar '22

03 Mar '22

euler inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I4VPIB CVE: NA ------------------------------------------------- If this config is enabled, block mapping is not used. The linear address page table is mapped to 4 KB. As a result, the TLB miss rate is high, affecting performance. For examples, tested by libMicro benchmark: enable disable Improve memsetP2_10m 3540.37760 2129.715200 66.2% memset_4k 0.38400 0.204800 87.5% mprot_twz8k 7.16800 3.072000 133.3% unmap_ra8k 7.93600 4.096000 93.8% unmap_wa128k 68.86400 33.024000 108.5% This additional enhancement can be turned on with rodata=full if this option is set to 'n'. Signed-off-by: Chao Liu <liuchao173(a)huawei.com> --- arch/arm64/configs/openeuler_defconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/configs/openeuler_defconfig b/arch/arm64/configs/openeuler_defconfig index b476b105ee10..8ded00ca3364 100644 --- a/arch/arm64/configs/openeuler_defconfig +++ b/arch/arm64/configs/openeuler_defconfig @@ -433,7 +433,7 @@ CONFIG_ARM64_CPU_PARK=y # CONFIG_XEN is not set CONFIG_FORCE_MAX_ZONEORDER=11 CONFIG_UNMAP_KERNEL_AT_EL0=y -CONFIG_RODATA_FULL_DEFAULT_ENABLED=y +# CONFIG_RODATA_FULL_DEFAULT_ENABLED is not set CONFIG_ARM64_PMEM_RESERVE=y CONFIG_ARM64_PMEM_LEGACY=m # CONFIG_ARM64_SW_TTBR0_PAN is not set -- 2.23.0

2 1

[PATCH openEuler-5.10 1/9] kfence: Add a module parameter to adjust kfence objects
by Zheng Zengkai 02 Mar '22

02 Mar '22

From: Peng Liu <liupeng256(a)huawei.com> hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I4V388 CVE: NA -------------------------------- KFENCE is designed to be enabled in production kernels, but it can be also useful in some debug situations. For machines with limited memory and CPU resources, KASAN is really hard to run. Fortunately, KFENCE can be a suitable candidate. For KFENCE running on a single machine, the possibility of discovering existed bugs will increase as the increasing of KFENCE objects, but this will cost more memory. In order to balance the possibility of discovering existed bugs and memory cost, KFENCE objects need to be adjusted according to memory resources for a compiled kernel Image. Add a module parameter to adjust KFENCE objects will make kfence to use in different machines with the same kernel Image. In short, the following reasons motivate us to add this parameter. 1) In some debug situations, this will make kfence flexible. 2) For some production machines with different memory and CPU size, this will reduce the kernel-Image-version burden. The main change is just using kfence_num_objects to replace config CONFIG_KFENCE_NUM_OBJECTS for dynamic configuration convenient. To make compatible, kfence_metadata and alloc_covered are alloced by memblock_alloc. Considering "cat /sys/kernel/debug/kfence/objects" will read kfence_metadata, the initialization of this fs should check whether kfence_metadata is successfully allocated. Unfortunately, dynamic allocation require the KFENCE pool size to be a configurable variable, which lead to additional instructions (eg, load) added to the fast path of the memory allocation. As a result, the performance will degrade. To avoid bad performance in production machine, an ugly macro is used to isolate the changes. Signed-off-by: Peng Liu <liupeng256(a)huawei.com> Reviewed-by: Kefeng Wang <wangkefeng.wang(a)huawei.com> Reviewed-by: Cheng Jian <cj.chengjian(a)huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> --- Documentation/dev-tools/kfence.rst | 8 +- include/linux/kfence.h | 9 +- lib/Kconfig.kfence | 10 +++ mm/kfence/core.c | 138 ++++++++++++++++++++++++++--- mm/kfence/kfence.h | 6 +- mm/kfence/kfence_test.c | 2 +- 6 files changed, 155 insertions(+), 18 deletions(-) diff --git a/Documentation/dev-tools/kfence.rst b/Documentation/dev-tools/kfence.rst index ac6b89d1a8c3..5d194615aed0 100644 --- a/Documentation/dev-tools/kfence.rst +++ b/Documentation/dev-tools/kfence.rst @@ -41,13 +41,19 @@ guarded by KFENCE. The default is configurable via the Kconfig option ``CONFIG_KFENCE_SAMPLE_INTERVAL``. Setting ``kfence.sample_interval=0`` disables KFENCE. -The KFENCE memory pool is of fixed size, and if the pool is exhausted, no +If ``CONFIG_KFENCE_DYNAMIC_OBJECTS`` is disabled, +the KFENCE memory pool is of fixed size, and if the pool is exhausted, no further KFENCE allocations occur. With ``CONFIG_KFENCE_NUM_OBJECTS`` (default 255), the number of available guarded objects can be controlled. Each object requires 2 pages, one for the object itself and the other one used as a guard page; object pages are interleaved with guard pages, and every object page is therefore surrounded by two guard pages. +If ``CONFIG_KFENCE_DYNAMIC_OBJECTS`` is enabled, +the KFENCE memory pool size could be set via the kernel boot parameter +``kfence.num_objects``. Note, the performance will degrade due to additional +instructions(eg, load) added to the fast path of the memory allocation. + The total memory dedicated to the KFENCE memory pool can be computed as:: ( #objects + 1 ) * 2 * PAGE_SIZE diff --git a/include/linux/kfence.h b/include/linux/kfence.h index 4b5e3679a72c..3ea58c70d9c7 100644 --- a/include/linux/kfence.h +++ b/include/linux/kfence.h @@ -17,12 +17,19 @@ #include <linux/atomic.h> #include <linux/static_key.h> +#ifdef CONFIG_KFENCE_DYNAMIC_OBJECTS +extern unsigned long kfence_num_objects; +#define KFENCE_NR_OBJECTS kfence_num_objects +#else +#define KFENCE_NR_OBJECTS CONFIG_KFENCE_NUM_OBJECTS +#endif + /* * We allocate an even number of pages, as it simplifies calculations to map * address to metadata indices; effectively, the very first page serves as an * extended guard page, but otherwise has no special purpose. */ -#define KFENCE_POOL_SIZE ((CONFIG_KFENCE_NUM_OBJECTS + 1) * 2 * PAGE_SIZE) +#define KFENCE_POOL_SIZE ((KFENCE_NR_OBJECTS + 1) * 2 * PAGE_SIZE) extern char *__kfence_pool; DECLARE_STATIC_KEY_FALSE(kfence_allocation_key); diff --git a/lib/Kconfig.kfence b/lib/Kconfig.kfence index 912f252a41fc..f7adceb4a4cf 100644 --- a/lib/Kconfig.kfence +++ b/lib/Kconfig.kfence @@ -45,6 +45,16 @@ config KFENCE_NUM_OBJECTS pages are required; with one containing the object and two adjacent ones used as guard pages. +config KFENCE_DYNAMIC_OBJECTS + bool "Support dynamic configuration of the number of guarded objects" + default n + help + Enable dynamic configuration of the number of KFENCE guarded objects. + If this config is enabled, the number of KFENCE guarded objects could + be overridden via boot parameter "kfence.num_objects". Note that the + performance will degrade due to additional instructions(eg, load) + added to the fast path of the memory allocation. + config KFENCE_STATIC_KEYS bool "Use static keys to set up allocations" if EXPERT depends on JUMP_LABEL diff --git a/mm/kfence/core.c b/mm/kfence/core.c index a19154a8d196..0249af5f8244 100644 --- a/mm/kfence/core.c +++ b/mm/kfence/core.c @@ -93,13 +93,73 @@ module_param_named(skip_covered_thresh, kfence_skip_covered_thresh, ulong, 0644) char *__kfence_pool __ro_after_init; EXPORT_SYMBOL(__kfence_pool); /* Export for test modules. */ +#ifdef CONFIG_KFENCE_DYNAMIC_OBJECTS +/* + * The number of kfence objects will affect performance and bug detection + * accuracy. The initial value of this global parameter is determined by + * compiling settings. + */ +unsigned long kfence_num_objects = CONFIG_KFENCE_NUM_OBJECTS; +EXPORT_SYMBOL(kfence_num_objects); /* Export for test modules. */ + +#define MIN_KFENCE_OBJECTS 1 +#define MAX_KFENCE_OBJECTS 65535 + +static int param_set_num_objects(const char *val, const struct kernel_param *kp) +{ + unsigned long num; + + if (system_state != SYSTEM_BOOTING) + return -EINVAL; /* Cannot adjust KFENCE objects number on-the-fly. */ + + if (kstrtoul(val, 0, &num) < 0) + return -EINVAL; + + if (num < MIN_KFENCE_OBJECTS || num > MAX_KFENCE_OBJECTS) { + pr_warn("kfence_num_objects = %lu is not in valid range [%d, %d]\n", + num, MIN_KFENCE_OBJECTS, MAX_KFENCE_OBJECTS); + return -EINVAL; + } + + *((unsigned long *)kp->arg) = num; + return 0; +} + +static int param_get_num_objects(char *buffer, const struct kernel_param *kp) +{ + if (!READ_ONCE(kfence_enabled)) + return sprintf(buffer, "0\n"); + + return param_get_ulong(buffer, kp); +} + +static const struct kernel_param_ops num_objects_param_ops = { + .set = param_set_num_objects, + .get = param_get_num_objects, +}; +module_param_cb(num_objects, &num_objects_param_ops, &kfence_num_objects, 0600); +#endif + /* * Per-object metadata, with one-to-one mapping of object metadata to * backing pages (in __kfence_pool). */ +#ifdef CONFIG_KFENCE_DYNAMIC_OBJECTS +struct kfence_metadata *kfence_metadata; +static phys_addr_t metadata_size; + +static inline bool kfence_metadata_valid(void) +{ + return !!kfence_metadata; +} + +#else static_assert(CONFIG_KFENCE_NUM_OBJECTS > 0); struct kfence_metadata kfence_metadata[CONFIG_KFENCE_NUM_OBJECTS]; +static inline bool kfence_metadata_valid(void) { return true; } +#endif + /* Freelist with available objects. */ static struct list_head kfence_freelist = LIST_HEAD_INIT(kfence_freelist); static DEFINE_RAW_SPINLOCK(kfence_freelist_lock); /* Lock protecting freelist. */ @@ -124,11 +184,16 @@ atomic_t kfence_allocation_gate = ATOMIC_INIT(1); * P(alloc_traces) = (1 - e^(-HNUM * (alloc_traces / SIZE)) ^ HNUM */ #define ALLOC_COVERED_HNUM 2 -#define ALLOC_COVERED_ORDER (const_ilog2(CONFIG_KFENCE_NUM_OBJECTS) + 2) +#define ALLOC_COVERED_ORDER (const_ilog2(KFENCE_NR_OBJECTS) + 2) #define ALLOC_COVERED_SIZE (1 << ALLOC_COVERED_ORDER) #define ALLOC_COVERED_HNEXT(h) hash_32(h, ALLOC_COVERED_ORDER) #define ALLOC_COVERED_MASK (ALLOC_COVERED_SIZE - 1) +#ifdef CONFIG_KFENCE_DYNAMIC_OBJECTS +static atomic_t *alloc_covered; +static phys_addr_t covered_size; +#else static atomic_t alloc_covered[ALLOC_COVERED_SIZE]; +#endif /* Stack depth used to determine uniqueness of an allocation. */ #define UNIQUE_ALLOC_STACK_DEPTH ((size_t)8) @@ -168,7 +233,7 @@ static_assert(ARRAY_SIZE(counter_names) == KFENCE_COUNTER_COUNT); static inline bool should_skip_covered(void) { - unsigned long thresh = (CONFIG_KFENCE_NUM_OBJECTS * kfence_skip_covered_thresh) / 100; + unsigned long thresh = (KFENCE_NR_OBJECTS * kfence_skip_covered_thresh) / 100; return atomic_long_read(&counters[KFENCE_COUNTER_ALLOCATED]) > thresh; } @@ -236,7 +301,7 @@ static inline struct kfence_metadata *addr_to_metadata(unsigned long addr) * error. */ index = (addr - (unsigned long)__kfence_pool) / (PAGE_SIZE * 2) - 1; - if (index < 0 || index >= CONFIG_KFENCE_NUM_OBJECTS) + if (index < 0 || index >= KFENCE_NR_OBJECTS) return NULL; return &kfence_metadata[index]; @@ -251,7 +316,7 @@ static inline unsigned long metadata_to_pageaddr(const struct kfence_metadata *m /* Only call with a pointer into kfence_metadata. */ if (KFENCE_WARN_ON(meta < kfence_metadata || - meta >= kfence_metadata + CONFIG_KFENCE_NUM_OBJECTS)) + meta >= kfence_metadata + KFENCE_NR_OBJECTS)) return 0; /* @@ -576,7 +641,7 @@ static bool __init kfence_init_pool(void) addr += PAGE_SIZE; } - for (i = 0; i < CONFIG_KFENCE_NUM_OBJECTS; i++) { + for (i = 0; i < KFENCE_NR_OBJECTS; i++) { struct kfence_metadata *meta = &kfence_metadata[i]; /* Initialize metadata. */ @@ -637,7 +702,7 @@ DEFINE_SHOW_ATTRIBUTE(stats); */ static void *start_object(struct seq_file *seq, loff_t *pos) { - if (*pos < CONFIG_KFENCE_NUM_OBJECTS) + if (*pos < KFENCE_NR_OBJECTS) return (void *)((long)*pos + 1); return NULL; } @@ -649,7 +714,7 @@ static void stop_object(struct seq_file *seq, void *v) static void *next_object(struct seq_file *seq, void *v, loff_t *pos) { ++*pos; - if (*pos < CONFIG_KFENCE_NUM_OBJECTS) + if (*pos < KFENCE_NR_OBJECTS) return (void *)((long)*pos + 1); return NULL; } @@ -691,7 +756,11 @@ static int __init kfence_debugfs_init(void) struct dentry *kfence_dir = debugfs_create_dir("kfence", NULL); debugfs_create_file("stats", 0444, kfence_dir, NULL, &stats_fops); - debugfs_create_file("objects", 0400, kfence_dir, NULL, &objects_fops); + + /* Variable kfence_metadata may fail to allocate. */ + if (kfence_metadata_valid()) + debugfs_create_file("objects", 0400, kfence_dir, NULL, &objects_fops); + return 0; } @@ -751,6 +820,40 @@ static void toggle_allocation_gate(struct work_struct *work) } static DECLARE_DELAYED_WORK(kfence_timer, toggle_allocation_gate); +#ifdef CONFIG_KFENCE_DYNAMIC_OBJECTS +static int __init kfence_dynamic_init(void) +{ + metadata_size = sizeof(struct kfence_metadata) * KFENCE_NR_OBJECTS; + kfence_metadata = memblock_alloc(metadata_size, PAGE_SIZE); + if (!kfence_metadata) { + pr_err("failed to allocate metadata\n"); + return -ENOMEM; + } + + covered_size = sizeof(atomic_t) * KFENCE_NR_OBJECTS; + alloc_covered = memblock_alloc(covered_size, PAGE_SIZE); + if (!alloc_covered) { + memblock_free((phys_addr_t)kfence_metadata, metadata_size); + kfence_metadata = NULL; + pr_err("failed to allocate covered\n"); + return -ENOMEM; + } + + return 0; +} + +static void __init kfence_dynamic_destroy(void) +{ + memblock_free((phys_addr_t)alloc_covered, covered_size); + alloc_covered = NULL; + memblock_free((phys_addr_t)kfence_metadata, metadata_size); + kfence_metadata = NULL; +} +#else +static int __init kfence_dynamic_init(void) { return 0; } +static void __init kfence_dynamic_destroy(void) { } +#endif + /* === Public interface ===================================================== */ void __init kfence_alloc_pool(void) @@ -758,10 +861,14 @@ void __init kfence_alloc_pool(void) if (!kfence_sample_interval) return; - __kfence_pool = memblock_alloc(KFENCE_POOL_SIZE, PAGE_SIZE); + if (kfence_dynamic_init()) + return; - if (!__kfence_pool) + __kfence_pool = memblock_alloc(KFENCE_POOL_SIZE, PAGE_SIZE); + if (!__kfence_pool) { pr_err("failed to allocate pool\n"); + kfence_dynamic_destroy(); + } } void __init kfence_init(void) @@ -780,8 +887,8 @@ void __init kfence_init(void) static_branch_enable(&kfence_allocation_key); WRITE_ONCE(kfence_enabled, true); queue_delayed_work(system_unbound_wq, &kfence_timer, 0); - pr_info("initialized - using %lu bytes for %d objects at 0x%p-0x%p\n", KFENCE_POOL_SIZE, - CONFIG_KFENCE_NUM_OBJECTS, (void *)__kfence_pool, + pr_info("initialized - using %lu bytes for %lu objects at 0x%p-0x%p\n", KFENCE_POOL_SIZE, + (unsigned long)KFENCE_NR_OBJECTS, (void *)__kfence_pool, (void *)(__kfence_pool + KFENCE_POOL_SIZE)); } @@ -791,7 +898,10 @@ void kfence_shutdown_cache(struct kmem_cache *s) struct kfence_metadata *meta; int i; - for (i = 0; i < CONFIG_KFENCE_NUM_OBJECTS; i++) { + if (!kfence_metadata_valid()) + return; + + for (i = 0; i < KFENCE_NR_OBJECTS; i++) { bool in_use; meta = &kfence_metadata[i]; @@ -830,7 +940,7 @@ void kfence_shutdown_cache(struct kmem_cache *s) } } - for (i = 0; i < CONFIG_KFENCE_NUM_OBJECTS; i++) { + for (i = 0; i < KFENCE_NR_OBJECTS; i++) { meta = &kfence_metadata[i]; /* See above. */ diff --git a/mm/kfence/kfence.h b/mm/kfence/kfence.h index 2a2d5de9d379..e5f8f8577911 100644 --- a/mm/kfence/kfence.h +++ b/mm/kfence/kfence.h @@ -91,7 +91,11 @@ struct kfence_metadata { u32 alloc_stack_hash; }; -extern struct kfence_metadata kfence_metadata[CONFIG_KFENCE_NUM_OBJECTS]; +#ifdef CONFIG_KFENCE_DYNAMIC_OBJECTS +extern struct kfence_metadata *kfence_metadata; +#else +extern struct kfence_metadata kfence_metadata[KFENCE_NR_OBJECTS]; +#endif /* KFENCE error types for report generation. */ enum kfence_error_type { diff --git a/mm/kfence/kfence_test.c b/mm/kfence/kfence_test.c index f1690cf54199..213a49e0c742 100644 --- a/mm/kfence/kfence_test.c +++ b/mm/kfence/kfence_test.c @@ -621,7 +621,7 @@ static void test_gfpzero(struct kunit *test) break; test_free(buf2); - if (i == CONFIG_KFENCE_NUM_OBJECTS) { + if (i == KFENCE_NR_OBJECTS) { kunit_warn(test, "giving up ... cannot get same object back\n"); return; } -- 2.20.1

1 8

[PATCH openEuler-5.10 1/6] ext4: convert DIV_ROUND_UP to DIV_ROUND_UP_ULL
by Zheng Zengkai 02 Mar '22

02 Mar '22

From: Zhang Yi <yi.zhang(a)huawei.com> hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4VAQC?from=project-issue CVE: NA -------------------------------- Fix a compile error on arm32 architecture. build failed: arm, allmodconfig ERROR: modpost: "__aeabi_ldivmod" [fs/ext4/ext4.ko] undefined! make[1]: *** [modules-only.symvers] Error 1 make[1]: *** Deleting file 'modules-only.symvers' make: *** [modules] Error 2 Fixes: 356efe60eb78 ("ext4: fix underflow in ext4_max_bitmap_size()") Signed-off-by: Zhang Yi <yi.zhang(a)huawei.com> Reviewed-by: Yang Erkun <yangerkun(a)huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> --- fs/ext4/super.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 19539be45aec..f1a089ebe848 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3274,15 +3274,15 @@ static loff_t ext4_max_bitmap_size(int bits, int has_huge_files) upper_limit -= ppb; /* double indirect blocks */ if (upper_limit < ppb * ppb) { - meta_blocks += 1 + DIV_ROUND_UP(upper_limit, ppb); + meta_blocks += 1 + DIV_ROUND_UP_ULL(upper_limit, ppb); res -= meta_blocks; goto check_lfs; } meta_blocks += 1 + ppb; upper_limit -= ppb * ppb; /* tripple indirect blocks for the rest */ - meta_blocks += 1 + DIV_ROUND_UP(upper_limit, ppb) + - DIV_ROUND_UP(upper_limit, ppb*ppb); + meta_blocks += 1 + DIV_ROUND_UP_ULL(upper_limit, ppb) + + DIV_ROUND_UP_ULL(upper_limit, ppb*ppb); res -= meta_blocks; check_lfs: res <<= bits; -- 2.20.1

1 5

[PATCH openEuler-1.0-LTS] f2fs: fix to do sanity check on inode type during garbage collection
by Yang Yingliang 02 Mar '22

02 Mar '22

From: Chao Yu <chao(a)kernel.org> mainline inclusion from mainline-v5.16-rc1 commit 9056d6489f5a41cfbb67f719d2c0ce61ead72d9f category: bugfix bugzilla: 186264 CVE: CVE-2021-44879 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- As report by Wenqing Liu in bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=215231 - Overview kernel NULL pointer dereference triggered in folio_mark_dirty() when mount and operate on a crafted f2fs image - Reproduce tested on kernel 5.16-rc3, 5.15.X under root 1. mkdir mnt 2. mount -t f2fs tmp1.img mnt 3. touch tmp 4. cp tmp mnt F2FS-fs (loop0): sanity_check_inode: inode (ino=49) extent info [5942, 4294180864, 4] is incorrect, run fsck to fix F2FS-fs (loop0): f2fs_check_nid_range: out-of-range nid=31340049, run fsck to fix. BUG: kernel NULL pointer dereference, address: 0000000000000000 folio_mark_dirty+0x33/0x50 move_data_page+0x2dd/0x460 [f2fs] do_garbage_collect+0xc18/0x16a0 [f2fs] f2fs_gc+0x1d3/0xd90 [f2fs] f2fs_balance_fs+0x13a/0x570 [f2fs] f2fs_create+0x285/0x840 [f2fs] path_openat+0xe6d/0x1040 do_filp_open+0xc5/0x140 do_sys_openat2+0x23a/0x310 do_sys_open+0x57/0x80 The root cause is for special file: e.g. character, block, fifo or socket file, f2fs doesn't assign address space operations pointer array for mapping->a_ops field, so, in a fuzzed image, SSA table indicates a data block belong to special file, when f2fs tries to migrate that block, it causes NULL pointer access once move_data_page() calls a_ops->set_dirty_page(). Cc: stable(a)vger.kernel.org Reported-by: Wenqing Liu <wenqingliu0120(a)gmail.com> Signed-off-by: Chao Yu <chao(a)kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk(a)kernel.org> Signed-off-by: Guo Xuenan <guoxuenan(a)huawei.com> Reviewed-by: Xiu Jianfeng <xiujianfeng(a)huawei.com> Reviewed-by: fang wei <fangwei1(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- fs/f2fs/gc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index 700c39ec99f5a..f4f7b8feebefc 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -953,7 +953,8 @@ static void gc_data_segment(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, if (phase == 3) { inode = f2fs_iget(sb, dni.ino); - if (IS_ERR(inode) || is_bad_inode(inode)) + if (IS_ERR(inode) || is_bad_inode(inode) || + special_file(inode->i_mode)) continue; if (!down_write_trylock( -- 2.25.1

1 0

[PATCH openEuler-1.0-LTS 01/18] mm: Ratelimited mirrored memory related warning messages
by Yang Yingliang 01 Mar '22

01 Mar '22

From: Ma Wupeng <mawupeng1(a)huawei.com> hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I4SK3S CVE: NA -------------------------------- If system has mirrored memory, memblock will try to allocate mirrored memory firstly and fallback to non-mirrored memory when fails, but if with limited mirrored memory or some numa node without mirrored memory, lots of warning message about memblock allocation will occur. This patch ratelimit the warning message to avoid a very long print during bootup. Signed-off-by: Ma Wupeng <mawupeng1(a)huawei.com> Reviewed-by: Xie XiuQi <xiexiuqi(a)huawei.com> Reviewed-by: Kefeng Wang<wangkefeng.wang(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- mm/memblock.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/memblock.c b/mm/memblock.c index 13be610a381f4..80c6975ace6f2 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -291,7 +291,7 @@ phys_addr_t __init_memblock memblock_find_in_range(phys_addr_t start, NUMA_NO_NODE, flags); if (!ret && (flags & MEMBLOCK_MIRROR)) { - pr_warn("Could not allocate %pap bytes of mirrored memory\n", + pr_warn_ratelimited("Could not allocate %pap bytes of mirrored memory\n", &size); flags &= ~MEMBLOCK_MIRROR; goto again; @@ -1425,7 +1425,7 @@ static void * __init memblock_virt_alloc_internal( if (flags & MEMBLOCK_MIRROR) { flags &= ~MEMBLOCK_MIRROR; - pr_warn("Could not allocate %pap bytes of mirrored memory\n", + pr_warn_ratelimited("Could not allocate %pap bytes of mirrored memory\n", &size); goto again; } -- 2.25.1

1 17

[PATCH OLK-5.10] configs: update the defconfigs to support 9P
by Chao Liu 01 Mar '22

01 Mar '22

hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I4VPL5 CVE: NA ------------------------------------------------- Enable configs to support 9P. Signed-off-by: Chao Liu <liuchao173(a)huawei.com> --- arch/arm64/configs/openeuler_defconfig | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/arm64/configs/openeuler_defconfig b/arch/arm64/configs/openeuler_defconfig index 8ded00ca3364..d19da343bf1e 100644 --- a/arch/arm64/configs/openeuler_defconfig +++ b/arch/arm64/configs/openeuler_defconfig @@ -1876,7 +1876,10 @@ CONFIG_RFKILL=m CONFIG_RFKILL_LEDS=y CONFIG_RFKILL_INPUT=y CONFIG_RFKILL_GPIO=m -# CONFIG_NET_9P is not set +CONFIG_NET_9P=m +CONFIG_NET_9P_VIRTIO=m +# CONFIG_NET_9P_RDMA is not set +# CONFIG_NET_9P_DEBUG is not set # CONFIG_CAIF is not set CONFIG_CEPH_LIB=m # CONFIG_CEPH_LIB_PRETTYDEBUG is not set @@ -6397,6 +6400,10 @@ CONFIG_CIFS_DFS_UPCALL=y # CONFIG_CIFS_FSCACHE is not set # CONFIG_CODA_FS is not set # CONFIG_AFS_FS is not set +CONFIG_9P_FS=m +CONFIG_9P_FSCACHE=y +CONFIG_9P_FS_POSIX_ACL=y +CONFIG_9P_FS_SECURITY=y CONFIG_EULER_FS=m CONFIG_NLS=y CONFIG_NLS_DEFAULT="utf8" -- 2.23.0

2 1

[PATCH OLK-5.10] configs: disable CONFIG_RODATA_FULL_DEFAULT_ENABLED
by Chao Liu 01 Mar '22

01 Mar '22

If this config is enabled, block mapping is not used. The linear address page table is mapped to 4 KB. As a result, the TLB miss rate is high, affecting performance. This additional enhancement can be turned on with rodata=full if this option is set to 'n'. Signed-off-by: Chao Liu <liuchao173(a)huawei.com> --- arch/arm64/configs/openeuler_defconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/configs/openeuler_defconfig b/arch/arm64/configs/openeuler_defconfig index b476b105ee10..8ded00ca3364 100644 --- a/arch/arm64/configs/openeuler_defconfig +++ b/arch/arm64/configs/openeuler_defconfig @@ -433,7 +433,7 @@ CONFIG_ARM64_CPU_PARK=y # CONFIG_XEN is not set CONFIG_FORCE_MAX_ZONEORDER=11 CONFIG_UNMAP_KERNEL_AT_EL0=y -CONFIG_RODATA_FULL_DEFAULT_ENABLED=y +# CONFIG_RODATA_FULL_DEFAULT_ENABLED is not set CONFIG_ARM64_PMEM_RESERVE=y CONFIG_ARM64_PMEM_LEGACY=m # CONFIG_ARM64_SW_TTBR0_PAN is not set -- 2.23.0

2 1

[PATCH OLK-5.10] configs: disable CONFIG_RODATA_FULL_DEFAULT_ENABLED
by Chao Liu 01 Mar '22

01 Mar '22

euler inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I4VPIB CVE: NA ------------------------------------------------- If this config is enabled, block mapping is not used. The linear address page table is mapped to 4 KB. As a result, the TLB miss rate is high, affecting performance. This additional enhancement can be turned on with rodata=full if this option is set to 'n'. Signed-off-by: Chao Liu <liuchao173(a)huawei.com> --- arch/arm64/configs/openeuler_defconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/configs/openeuler_defconfig b/arch/arm64/configs/openeuler_defconfig index b476b105ee10..8ded00ca3364 100644 --- a/arch/arm64/configs/openeuler_defconfig +++ b/arch/arm64/configs/openeuler_defconfig @@ -433,7 +433,7 @@ CONFIG_ARM64_CPU_PARK=y # CONFIG_XEN is not set CONFIG_FORCE_MAX_ZONEORDER=11 CONFIG_UNMAP_KERNEL_AT_EL0=y -CONFIG_RODATA_FULL_DEFAULT_ENABLED=y +# CONFIG_RODATA_FULL_DEFAULT_ENABLED is not set CONFIG_ARM64_PMEM_RESERVE=y CONFIG_ARM64_PMEM_LEGACY=m # CONFIG_ARM64_SW_TTBR0_PAN is not set -- 2.23.0

1 0

[PATCH openEuler-1.0-LTS 1/2] USB: gadget: validate interface OS descriptor requests
by Yang Yingliang 01 Mar '22

01 Mar '22

From: Szymon Heidrich <szymon.heidrich(a)gmail.com> stable inclusion from linux-4.19.230 commit e5eb8d19aee115d8fb354d1eff1b8df700467164 CVE: CVE-2022-25258 -------------------------------- commit 75e5b4849b81e19e9efe1654b30d7f3151c33c2c upstream. Stall the control endpoint in case provided index exceeds array size of MAX_CONFIG_INTERFACES or when the retrieved function pointer is null. Signed-off-by: Szymon Heidrich <szymon.heidrich(a)gmail.com> Cc: stable(a)kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> Reviewed-by: Wang Weiyang <wangweiyang2(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- drivers/usb/gadget/composite.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index d39ebf5bdbdd5..0f2af1e1e8f4b 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -1865,6 +1865,9 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) if (w_index != 0x5 || (w_value >> 8)) break; interface = w_value & 0xFF; + if (interface >= MAX_CONFIG_INTERFACES || + !os_desc_cfg->interface[interface]) + break; buf[6] = w_index; count = count_ext_prop(os_desc_cfg, interface); -- 2.25.1

1 1

[PATCH openEuler-1.0-LTS] mm/hwpoison: clear MF_COUNT_INCREASED before retrying get_any_page()
by Yang Yingliang 28 Feb '22

28 Feb '22

From: Liu Shixin <liushixin2(a)huawei.com> mainline inclusion from linux-v5.16-rc7 commit 2a57d83c78f889bf3f54eede908d0643c40d5418 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4LE22 CVE: NA -------------------------------- Hulk Robot reported a panic in put_page_testzero() when testing madvise() with MADV_SOFT_OFFLINE. The BUG() is triggered when retrying get_any_page(). This is because we keep MF_COUNT_INCREASED flag in second try but the refcnt is not increased. page dumped because: VM_BUG_ON_PAGE(page_ref_count(page) == 0) ------------[ cut here ]------------ kernel BUG at include/linux/mm.h:737! invalid opcode: 0000 [#1] PREEMPT SMP CPU: 5 PID: 2135 Comm: sshd Tainted: G B 5.16.0-rc6-dirty #373 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 RIP: release_pages+0x53f/0x840 Call Trace: free_pages_and_swap_cache+0x64/0x80 tlb_flush_mmu+0x6f/0x220 unmap_page_range+0xe6c/0x12c0 unmap_single_vma+0x90/0x170 unmap_vmas+0xc4/0x180 exit_mmap+0xde/0x3a0 mmput+0xa3/0x250 do_exit+0x564/0x1470 do_group_exit+0x3b/0x100 __do_sys_exit_group+0x13/0x20 __x64_sys_exit_group+0x16/0x20 do_syscall_64+0x34/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae Modules linked in: ---[ end trace e99579b570fe0649 ]--- RIP: 0010:release_pages+0x53f/0x840 Link: https://lkml.kernel.org/r/20211221074908.3910286-1-liushixin2@huawei.com Fixes: b94e02822deb ("mm,hwpoison: try to narrow window race for free pages") Signed-off-by: Liu Shixin <liushixin2(a)huawei.com> Reported-by: Hulk Robot <hulkci(a)huawei.com> Reviewed-by: Oscar Salvador <osalvador(a)suse.de> Acked-by: Naoya Horiguchi <naoya.horiguchi(a)nec.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> Signed-off-by: Ma Wupeng <mawupeng1(a)huawei.com> Reviewed-by: Kefeng Wang <wangkefeng.wang(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- mm/memory-failure.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/memory-failure.c b/mm/memory-failure.c index 578859c94866f..c743ad409908c 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -1955,6 +1955,7 @@ int soft_offline_page(struct page *page, int flags) else if (ret == 0) if (soft_offline_free_page(page) && try_again) { try_again = false; + flags &= ~MF_COUNT_INCREASED; goto retry; } -- 2.25.1

1 0

[ANNOUNCE] 新建 openEuler-22.03-LTS 维护分支
by Xie XiuQi 25 Feb '22

25 Feb '22

各位好, openEuler 22.03 LTS 已经发布了第二轮测试版本，为支撑版本发布和维护，我们基于 OLK-5.10 创建了 openEuler-22.03-LTS 分支。该分支用于 22.03-LTS 版本的维护，不再接受未事先规划的新特性。仅接受 bugfix、CVE 和性能优化。如有补丁需要合入该分支，需在补丁标题增加版本分支前缀。 - 需要推送到该分支的补丁，需要首先合入 OLK-5.10；该分支原则上不接受没有合入 OLK-5.10 的补丁。 - 22.03-LTS 发布之后，可以接受从 OLK-5.10 backport 的不影响兼容性的优化、硬件使能等影响小的特性。同时基于 OLK-5.10 创建 openEuler-22.09 分支，用于支撑 22.09 创新版本的开发。创新版本接受新特性、Preview 特性、验证特性等，促进新技术、新特性的成熟和稳定。 OLK-5.10 分支继续接受补丁合入请求。新创建的分支路径： https://gitee.com/openeuler/kernel/tree/openEuler-22.03-LTS/ https://gitee.com/openeuler/kernel/tree/openEuler-22.09/

1 0

[PATCH OLK-5.10] configs: enable CONFIG_INTEL_IDXD
by fuyufan 24 Feb '22

24 Feb '22

euler inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I4URME CVE: NA -------------------------------- Enable CONFIG_INTEL_IDXD in openeuler_defconfig for x86. Support Intel Data Accelerators on Xeon hardware. Signed-off-by: fuyufan <fuyufan(a)huawei.com> --- arch/x86/configs/openeuler_defconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/configs/openeuler_defconfig b/arch/x86/configs/openeuler_defconfig index 316c4122a859..350a02583978 100644 --- a/arch/x86/configs/openeuler_defconfig +++ b/arch/x86/configs/openeuler_defconfig @@ -6353,7 +6353,7 @@ CONFIG_DMA_VIRTUAL_CHANNELS=y CONFIG_DMA_ACPI=y # CONFIG_ALTERA_MSGDMA is not set CONFIG_INTEL_IDMA64=m -# CONFIG_INTEL_IDXD is not set +CONFIG_INTEL_IDXD=m CONFIG_INTEL_IOATDMA=m # CONFIG_PLX_DMA is not set # CONFIG_QCOM_HIDMA_MGMT is not set -- 2.27.0

1 0

[PATCH OLK-5.10] configs: enable CONFIG_INTEL_IDXD
by fuyufan 24 Feb '22

24 Feb '22

euler inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I4URME CVE: NA -------------------------------- Enable CONFIG_INTEL_IDXD in openeuler_defconfig for x86. Support Intel Data Accelerators on Xeon hardware. Signed-off-by: fuyufan <fuyufan(a)huawei.com> --- arch/x86/configs/openeuler_defconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/configs/openeuler_defconfig b/arch/x86/configs/openeuler_defconfig index 316c4122a859..350a02583978 100644 --- a/arch/x86/configs/openeuler_defconfig +++ b/arch/x86/configs/openeuler_defconfig @@ -6353,7 +6353,7 @@ CONFIG_DMA_VIRTUAL_CHANNELS=y CONFIG_DMA_ACPI=y # CONFIG_ALTERA_MSGDMA is not set CONFIG_INTEL_IDMA64=m -# CONFIG_INTEL_IDXD is not set +CONFIG_INTEL_IDXD=y CONFIG_INTEL_IOATDMA=m # CONFIG_PLX_DMA is not set # CONFIG_QCOM_HIDMA_MGMT is not set -- 2.27.0

1 0

[PATCH openEuler-1.0-LTS 1/2] udf: Fix NULL ptr deref when converting from inline format
by Yang Yingliang 24 Feb '22

24 Feb '22

From: Jan Kara <jack(a)suse.cz> mainline inclusion from mainline-v5.17-rc2 commit 7fc3b7c2981bbd1047916ade327beccb90994eee category: bugfix bugzilla: 186269 CVE: CVE-2022-0617 ----------------------------------------------- udf_expand_file_adinicb() calls directly ->writepage to write data expanded into a page. This however misses to setup inode for writeback properly and so we can crash on inode->i_wb dereference when submitting page for IO like: BUG: kernel NULL pointer dereference, address: 0000000000000158 #PF: supervisor read access in kernel mode ... <TASK> __folio_start_writeback+0x2ac/0x350 __block_write_full_page+0x37d/0x490 udf_expand_file_adinicb+0x255/0x400 [udf] udf_file_write_iter+0xbe/0x1b0 [udf] new_sync_write+0x125/0x1c0 vfs_write+0x28e/0x400 Fix the problem by marking the page dirty and going through the standard writeback path to write the page. Strictly speaking we would not even have to write the page but we want to catch e.g. ENOSPC errors early. Reported-by: butt3rflyh4ck <butterflyhuangxx(a)gmail.com> CC: stable(a)vger.kernel.org Fixes: 52ebea749aae ("writeback: make backing_dev_info host cgroup-specific bdi_writebacks") Reviewed-by: Christoph Hellwig <hch(a)lst.de> Signed-off-by: Jan Kara <jack(a)suse.cz> Signed-off-by: Zhang Wensheng <zhangwensheng5(a)huawei.com> Reviewed-by: Zhang Yi <yi.zhang(a)huawei.com> Reviewed-by: Xiu Jianfeng <xiujianfeng(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- fs/udf/inode.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 4c46ebf0e773b..d1fab052ac759 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -248,10 +248,6 @@ int udf_expand_file_adinicb(struct inode *inode) char *kaddr; struct udf_inode_info *iinfo = UDF_I(inode); int err; - struct writeback_control udf_wbc = { - .sync_mode = WB_SYNC_NONE, - .nr_to_write = 1, - }; WARN_ON_ONCE(!inode_is_locked(inode)); if (!iinfo->i_lenAlloc) { @@ -295,8 +291,10 @@ int udf_expand_file_adinicb(struct inode *inode) iinfo->i_alloc_type = ICBTAG_FLAG_AD_LONG; /* from now on we have normal address_space methods */ inode->i_data.a_ops = &udf_aops; + set_page_dirty(page); + unlock_page(page); up_write(&iinfo->i_data_sem); - err = inode->i_data.a_ops->writepage(page, &udf_wbc); + err = filemap_fdatawrite(inode->i_mapping); if (err) { /* Restore everything back so that we don't lose data... */ lock_page(page); -- 2.25.1

1 1

[PATCH openEuler-5.10 01/18] efi: Make efi_print_memmap() public
by Zheng Zengkai 23 Feb '22

23 Feb '22

From: Ma Wupeng <mawupeng1(a)huawei.com> hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I4PM01 CVE: NA -------------------------------- Make efi_print_memmap() public in preparation for adding fake memory support for architecture with efi support, eg, arm64. Co-developed-by: Jing Xiangfeng <jingxiangfeng(a)huawei.com> Signed-off-by: Ma Wupeng <mawupeng1(a)huawei.com> Reviewed-by: Kefeng Wang <wangkefeng.wang(a)huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> --- arch/x86/include/asm/efi.h | 1 - arch/x86/platform/efi/efi.c | 16 ---------------- drivers/firmware/efi/memmap.c | 16 ++++++++++++++++ include/linux/efi.h | 1 + 4 files changed, 17 insertions(+), 17 deletions(-) diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h index bc9758ef292e..3be8754408d5 100644 --- a/arch/x86/include/asm/efi.h +++ b/arch/x86/include/asm/efi.h @@ -138,7 +138,6 @@ struct efi_scratch { extern struct efi_scratch efi_scratch; extern int __init efi_memblock_x86_reserve_range(void); -extern void __init efi_print_memmap(void); extern void __init efi_map_region(efi_memory_desc_t *md); extern void __init efi_map_region_fixed(efi_memory_desc_t *md); extern void efi_sync_low_kernel_mappings(void); diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index 8a26e705cb06..ef6f4cbffe28 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -323,22 +323,6 @@ static void __init efi_clean_memmap(void) } } -void __init efi_print_memmap(void) -{ - efi_memory_desc_t *md; - int i = 0; - - for_each_efi_memory_desc(md) { - char buf[64]; - - pr_info("mem%02u: %s range=[0x%016llx-0x%016llx] (%lluMB)\n", - i++, efi_md_typeattr_format(buf, sizeof(buf), md), - md->phys_addr, - md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT) - 1, - (md->num_pages >> (20 - EFI_PAGE_SHIFT))); - } -} - static int __init efi_systab_init(unsigned long phys) { int size = efi_enabled(EFI_64BIT) ? sizeof(efi_system_table_64_t) diff --git a/drivers/firmware/efi/memmap.c b/drivers/firmware/efi/memmap.c index 2ff1883dc788..0155bf066ba5 100644 --- a/drivers/firmware/efi/memmap.c +++ b/drivers/firmware/efi/memmap.c @@ -376,3 +376,19 @@ void __init efi_memmap_insert(struct efi_memory_map *old_memmap, void *buf, } } } + +void __init efi_print_memmap(void) +{ + efi_memory_desc_t *md; + int i = 0; + + for_each_efi_memory_desc(md) { + char buf[64]; + + pr_info("mem%02u: %s range=[0x%016llx-0x%016llx] (%lluMB)\n", + i++, efi_md_typeattr_format(buf, sizeof(buf), md), + md->phys_addr, + md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT) - 1, + (md->num_pages >> (20 - EFI_PAGE_SHIFT))); + } +} diff --git a/include/linux/efi.h b/include/linux/efi.h index e17cd4c44f93..280f36cb7c14 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -643,6 +643,7 @@ extern int __init efi_memmap_split_count(efi_memory_desc_t *md, struct range *range); extern void __init efi_memmap_insert(struct efi_memory_map *old_memmap, void *buf, struct efi_mem_range *mem); +extern void __init efi_print_memmap(void); #ifdef CONFIG_EFI_ESRT extern void __init efi_esrt_init(void); -- 2.20.1

1 17

[PATCH openEuler-5.10 04/25] ahci: Fix some bugs like plugin support and sata link stability when user enable ahci RTD3
by Zheng Zengkai 23 Feb '22

23 Feb '22

From: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> zhaoxin inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I40QDN CVE: NA ---------------------------------------------------------------- The kernel driver now will disable interrupt when port is suspended, causing plugin not work. It is useful to make plugin work，when the plugin interrupt is enabled with power management status. Adding pm_request_resume() is to reume port for plugin or PME signal waking up controller which in D3. with the AHCI controller frequently enters into D3 and leaves from D3, the identify cmd may be timeout when controller resumes and establishes a connect with the device.it is effective to delay 10ms between controller resume and port resume，with link’s smooth transition. with non power management request and power management competing with each other in queue, it is often found that block IO hang 120s when system disk is suspending or resuming.it is now guaranteed that PM requests will enter the queue no matter other non-PM requests are waiting. Increase the pm_only counter before checking whether any non-PM blk_queue_enter() calls are in progress. Meanwhile, the new blk_pm_request_resume() call is necessary to occur during request assigned to a queue when device is suspended. Signed-off-by: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> Reviewed-by: Xiongfeng Wang <wangxiongfeng2(a)huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> --- drivers/ata/ahci.c | 13 +++++++++++++ drivers/ata/libahci.c | 15 +++++++++++++++ 2 files changed, 28 insertions(+) diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index ff2add0101fe..8a7140ee88b5 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -869,6 +869,19 @@ static int ahci_pci_device_runtime_resume(struct device *dev) if (rc) return rc; ahci_pci_init_controller(host); + + /* Port resume for Zhaoxin platform */ + if (pdev->vendor == PCI_VENDOR_ID_ZHAOXIN) { + if (pdev->revision == 0x01) + ata_msleep(NULL, 10); + + for (rc = 0; rc < host->n_ports; rc++) { + struct ata_port *ap = host->ports[rc]; + + pm_request_resume(&ap->tdev); + } + } + return 0; } diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index fec2e9754aed..4514f3f28b7c 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -823,9 +823,15 @@ static int ahci_set_lpm(struct ata_link *link, enum ata_lpm_policy policy, static void ahci_power_down(struct ata_port *ap) { struct ahci_host_priv *hpriv = ap->host->private_data; + struct pci_dev *pdev; void __iomem *port_mmio = ahci_port_base(ap); u32 cmd, scontrol; + /* port suspended enable Plugin intr for Zhaoxin platform */ + pdev = (ap->dev && dev_is_pci(ap->dev)) ? to_pci_dev(ap->dev) : NULL; + if ((pdev && pdev->vendor == PCI_VENDOR_ID_ZHAOXIN) && !ap->link.device->sdev) + writel(PORT_IRQ_CONNECT, port_mmio + PORT_IRQ_MASK); + if (!(hpriv->cap & HOST_CAP_SSS)) return; @@ -1701,6 +1707,7 @@ static void ahci_error_intr(struct ata_port *ap, u32 irq_stat) struct ata_link *link = NULL; struct ata_queued_cmd *active_qc; struct ata_eh_info *active_ehi; + struct pci_dev *pdev; bool fbs_need_dec = false; u32 serror; @@ -1791,6 +1798,14 @@ static void ahci_error_intr(struct ata_port *ap, u32 irq_stat) ata_ehi_push_desc(host_ehi, "%s", irq_stat & PORT_IRQ_CONNECT ? "connection status changed" : "PHY RDY changed"); + + /* When plugin intr happen, now resume suspended port for Zhaoxin platform */ + pdev = (ap->dev && dev_is_pci(ap->dev)) ? to_pci_dev(ap->dev) : NULL; + if ((pdev && pdev->vendor == PCI_VENDOR_ID_ZHAOXIN) && + (ap->pflags & ATA_PFLAG_SUSPENDED)) { + pm_request_resume(&ap->tdev); + return; + } } /* okay, let's hand over to EH */ -- 2.20.1

1 3

[PATCH openEuler-5.10 01/25] rtc: Fix set RTC time delay 500ms on some Zhaoxin SOCs
by Zheng Zengkai 23 Feb '22

23 Feb '22

From: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> zhaoxin inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I40QDN CVE: NA ---------------------------------------------------------------- When the RTC divider is changed from reset to an operating time base, the first update cycle should be 500ms later. But on some Zhaoxin SOCs, this first update cycle is one second later. So set RTC time on these Zhaoxin SOCs will causing 500ms delay. Skip setup RTC divider on these SOCs in mc146818_set_time to fix it. Signed-off-by: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> Reviewed-by: Xiongfeng Wang <wangxiongfeng2(a)huawei.com> --- drivers/rtc/rtc-mc146818-lib.c | 26 +++++++++++++++++++++++--- 1 file changed, 23 insertions(+), 3 deletions(-) diff --git a/drivers/rtc/rtc-mc146818-lib.c b/drivers/rtc/rtc-mc146818-lib.c index 2ecd8752b088..033dcc0645a5 100644 --- a/drivers/rtc/rtc-mc146818-lib.c +++ b/drivers/rtc/rtc-mc146818-lib.c @@ -8,6 +8,22 @@ #include <linux/acpi.h> #endif +#ifdef CONFIG_X86 +static inline bool follow_mc146818_divider_reset(void) +{ + if ((boot_cpu_data.x86_vendor == X86_VENDOR_CENTAUR || + boot_cpu_data.x86_vendor == X86_VENDOR_ZHAOXIN) && + (boot_cpu_data.x86 <= 7 && boot_cpu_data.x86_model <= 59)) + return false; + return true; +} +#else +static inline bool follow_mc146818_divider_reset(void) +{ + return true; +} +#endif + /* * Returns true if a clock update is in progress */ @@ -171,8 +187,11 @@ int mc146818_set_time(struct rtc_time *time) save_control = CMOS_READ(RTC_CONTROL); CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL); - save_freq_select = CMOS_READ(RTC_FREQ_SELECT); - CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT); + if (follow_mc146818_divider_reset()) { + save_freq_select = CMOS_READ(RTC_FREQ_SELECT); + CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT); + } + #ifdef CONFIG_MACH_DECSTATION CMOS_WRITE(real_yrs, RTC_DEC_YEAR); @@ -190,7 +209,8 @@ int mc146818_set_time(struct rtc_time *time) #endif CMOS_WRITE(save_control, RTC_CONTROL); - CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT); + if (follow_mc146818_divider_reset()) + CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT); spin_unlock_irqrestore(&rtc_lock, flags); -- 2.20.1

1 24

[PATCH openEuler-1.0-LTS] ext4: fix underflow in ext4_max_bitmap_size()
by Yang Yingliang 23 Feb '22

23 Feb '22

From: Zhang Yi <yi.zhang(a)huawei.com> hulk inclusion category: bugfix bugzilla: 186216, https://gitee.com/openeuler/kernel/issues/I4PW7R CVE: NA -------------------------------- The same to commit 1c2d14212b15 ("ext2: Fix underflow in ext2_max_size()") in ext2 filesystem, ext4 driver has the same issue with 64K block size and ^huge_file, fix this issue the same as ext2. This patch also revert commit 75ca6ad408f4 ("ext4: fix loff_t overflow in ext4_max_bitmap_size()") because it's no longer needed. Signed-off-by: Zhang Yi <yi.zhang(a)huawei.com> Conflicts: fs/ext4/super.c Signed-off-by: Baokun Li <libaokun1(a)huawei.com> Reviewed-by: Yang Erkun <yangerkun(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- fs/ext4/super.c | 46 +++++++++++++++++++++++++++++++--------------- 1 file changed, 31 insertions(+), 15 deletions(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 59637e70f9e32..8f9d60ec607ea 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -2958,9 +2958,10 @@ static loff_t ext4_max_size(int blkbits, int has_huge_files) */ static loff_t ext4_max_bitmap_size(int bits, int has_huge_files) { - loff_t res = EXT4_NDIR_BLOCKS; + loff_t upper_limit, res = EXT4_NDIR_BLOCKS; int meta_blocks; - loff_t upper_limit; + unsigned int ppb = 1 << (bits - 2); + /* This is calculated to be the largest file size for a dense, block * mapped file such that the file's total number of 512-byte sectors, * including data and all indirect blocks, does not exceed (2^48 - 1). @@ -2991,23 +2992,38 @@ static loff_t ext4_max_bitmap_size(int bits, int has_huge_files) } - /* indirect blocks */ - meta_blocks = 1; - /* double indirect blocks */ - meta_blocks += 1 + (1LL << (bits-2)); - /* tripple indirect blocks */ - meta_blocks += 1 + (1LL << (bits-2)) + (1LL << (2*(bits-2))); - - upper_limit -= meta_blocks; - upper_limit <<= bits; - + /* Compute how many blocks we can address by block tree */ res += 1LL << (bits-2); res += 1LL << (2*(bits-2)); res += 1LL << (3*(bits-2)); + /* Compute how many metadata blocks are needed */ + meta_blocks = 1; + meta_blocks += 1 + ppb; + meta_blocks += 1 + ppb + ppb * ppb; + /* Does block tree limit file size? */ + if (res + meta_blocks <= upper_limit) + goto check_lfs; + + res = upper_limit; + /* How many metadata blocks are needed for addressing upper_limit? */ + upper_limit -= EXT4_NDIR_BLOCKS; + /* indirect blocks */ + meta_blocks = 1; + upper_limit -= ppb; + /* double indirect blocks */ + if (upper_limit < ppb * ppb) { + meta_blocks += 1 + DIV_ROUND_UP(upper_limit, ppb); + res -= meta_blocks; + goto check_lfs; + } + meta_blocks += 1 + ppb; + upper_limit -= ppb * ppb; + /* tripple indirect blocks for the rest */ + meta_blocks += 1 + DIV_ROUND_UP(upper_limit, ppb) + + DIV_ROUND_UP(upper_limit, ppb*ppb); + res -= meta_blocks; +check_lfs: res <<= bits; - if (res > upper_limit) - res = upper_limit; - if (res > MAX_LFS_FILESIZE) res = MAX_LFS_FILESIZE; -- 2.25.1

1 0

[PATCH OLK-5.10 v4 0/7] Backport zhaoxin enhancement and bugfix
by Zheng Zengkai 23 Feb '22

23 Feb '22

v3->v4: Refector 0001 patch. v2->v3: Fix compile warning "ahci_error_intr ISO C90 forbids mixed declarations and code" Backport zhaoxin enhancement and bugfix patches. LeoLiu-oc (7): rtc: Fix set RTC time delay 500ms on some Zhaoxin SOCs XHCI:Fix some device identify fail when enable xHCI runtime suspend EHCI:Clear wakeup signal locked in S0 state when device plug in Fix some bugs like plugin support and sata link stability when user enable ahci RTD3 Add support for disabling PhyRdy Change Interrupt based on actual LPM capability Add support for PxSCT.LPM set based on actual LPM capability x86/tsc: Make cur->adjusted values in package#1 to be the same arch/x86/kernel/tsc_sync.c | 5 +++++ drivers/ata/ahci.c | 24 ++++++++++++++++++++++++ drivers/ata/libahci.c | 15 +++++++++++++++ drivers/ata/libata-eh.c | 7 +++++++ drivers/ata/libata-sata.c | 20 ++++++++++++++++++-- drivers/pci/pci-driver.c | 6 +++++- drivers/rtc/rtc-mc146818-lib.c | 28 +++++++++++++++++++++++++--- drivers/usb/host/ehci-hcd.c | 21 +++++++++++++++++++++ drivers/usb/host/ehci-pci.c | 4 ++++ drivers/usb/host/ehci.h | 1 + drivers/usb/host/xhci-pci.c | 2 ++ include/linux/libata.h | 4 ++++ 12 files changed, 131 insertions(+), 6 deletions(-) -- 2.20.1

2 9

[PATCH openEuler-5.10 01/90] ACPICA: Interpreter: fix memory leak by using existing buffer
by Zheng Zengkai 23 Feb '22

23 Feb '22

From: Erik Kaneda <erik.kaneda(a)intel.com> mainline inclusion from mainline-v5.11-rc1 commit 32cf1a12cad43358e47dac8014379c2f33dfbed4 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I4T7OX CVE: NA -------------------------------- ACPICA commit 52d1da5dcbd79a722b70f02a1a83f04088f51ff6 There was a memory leak that ocurred when a _CID object is defined as a package containing string objects. When _CID is checked for any possible repairs, it calls a helper function to repair _HID (because _CID basically contains multiple _HID entries). The _HID repair function assumes that string objects are standalone objects that are not contained inside of any packages. The _HID repair function replaces the string object with a brand new object and attempts to delete the old object by decrementing the reference count of the old object. Strings inside of packages have a reference count of 2 so the _HID repair function leaves this object in a dangling state and causes a memory leak. Instead of allocating a brand new object and removing the old object, use the existing object when repairing the _HID object. Link: https://github.com/acpica/acpica/commit/52d1da5d Signed-off-by: Erik Kaneda <erik.kaneda(a)intel.com> Signed-off-by: Bob Moore <robert.moore(a)intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki(a)intel.com> Conflicts: drivers/acpi/acpica/nsrepair2.c [wangxiongfeng: fix conflicts caused by context mismatch] Signed-off-by: Xiongfeng Wang <wangxiongfeng2(a)huawei.com> Reviewed-by: Hanjun Guo <guohanjun(a)huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> --- drivers/acpi/acpica/nsrepair2.c | 17 ++++------------- 1 file changed, 4 insertions(+), 13 deletions(-) diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c index 125143c41bb8..fb4f8f6209bd 100644 --- a/drivers/acpi/acpica/nsrepair2.c +++ b/drivers/acpi/acpica/nsrepair2.c @@ -491,9 +491,8 @@ acpi_ns_repair_HID(struct acpi_evaluate_info *info, union acpi_operand_object **return_object_ptr) { union acpi_operand_object *return_object = *return_object_ptr; - union acpi_operand_object *new_string; - char *source; char *dest; + char *source; ACPI_FUNCTION_NAME(ns_repair_HID); @@ -514,13 +513,6 @@ acpi_ns_repair_HID(struct acpi_evaluate_info *info, return (AE_OK); } - /* It is simplest to always create a new string object */ - - new_string = acpi_ut_create_string_object(return_object->string.length); - if (!new_string) { - return (AE_NO_MEMORY); - } - /* * Remove a leading asterisk if present. For some unknown reason, there * are many machines in the field that contains IDs like this. @@ -530,7 +522,7 @@ acpi_ns_repair_HID(struct acpi_evaluate_info *info, source = return_object->string.pointer; if (*source == '*') { source++; - new_string->string.length--; + return_object->string.length--; ACPI_DEBUG_PRINT((ACPI_DB_REPAIR, "%s: Removed invalid leading asterisk\n", @@ -545,12 +537,11 @@ acpi_ns_repair_HID(struct acpi_evaluate_info *info, * "NNNN####" where N is an uppercase letter or decimal digit, and * # is a hex digit. */ - for (dest = new_string->string.pointer; *source; dest++, source++) { + for (dest = return_object->string.pointer; *source; dest++, source++) { *dest = (char)toupper((int)*source); } + return_object->string.pointer[return_object->string.length] = 0; - acpi_ut_remove_reference(return_object); - *return_object_ptr = new_string; return (AE_OK); } -- 2.20.1

2 91

Re: [PATCH OLK-5.10 v3 3/7] EHCI: Clear wakeup signal locked in S0 state when device plug in
by Zheng Zengkai 23 Feb '22

23 Feb '22

Loop Leo 在 2022/2/22 17:49, Jackie Liu 写道: > > > 在 2022/2/22 下午4:16, Zheng Zengkai 写道: >> From: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> >> >> zhaoxin inclusion >> category: feature >> bugzilla: https://gitee.com/openeuler/kernel/issues/I40QDN >> CVE: NA >> >> ---------------------------------------------------------------- >> >> If we plug in a LS/FS device on USB2 port of EHCI, it will latch a wakeup >> signal in EHCI internal. This is a bug of EHCI for Some project of >> ZhaoXin. If enable EHCI runtime suspend and no device attach. >> PM core will let EHCI go to D3 to save power. However, once EHCI go to D3, >> it will release wakeup signal that latched on device connect to port >> during S0. Which will generate a SCI interrupt and bring EHCI to D0. >> But without device connect, EHCI will go to D3 again. >> So, there is suspend-resume loop and generate SCI interrupt Continuously. >> >> In order to fix this issues, we need to clear the wakeup signal latched >> in EHCI when EHCI suspend function is called. >> >> Signed-off-by: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> >> Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> >> --- >> drivers/pci/pci-driver.c | 6 +++++- >> drivers/usb/host/ehci-hcd.c | 21 +++++++++++++++++++++ >> drivers/usb/host/ehci-pci.c | 4 ++++ >> drivers/usb/host/ehci.h | 1 + >> 4 files changed, 31 insertions(+), 1 deletion(-) >> >> diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c >> index 8b587fc97f7b..c33d7e0a60b5 100644 >> --- a/drivers/pci/pci-driver.c >> +++ b/drivers/pci/pci-driver.c >> @@ -518,7 +518,11 @@ static int pci_restore_standard_config(struct pci_dev *pci_dev) >> } >> >> pci_restore_state(pci_dev); >> - pci_pme_restore(pci_dev); >> + if (!((pci_dev->vendor == PCI_VENDOR_ID_ZHAOXIN) && >> + (pci_dev->device == 0x3104) && >> + ((pci_dev->revision & 0xf0) == 0x90)) || > >> + !(pci_dev->class == PCI_CLASS_SERIAL_USB_EHCI)) > 上面这句话是不是改变了通用逻辑？增加了一个 pci_dev->class != > PCI_CLASS_SERIAL_USB_EHCI 才进行 restore？ > >> + pci_pme_restore(pci_dev); >> return 0; >> } >> >> diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c >> index 8aff19ff8e8f..586e2735d6e0 100644 >> --- a/drivers/usb/host/ehci-hcd.c >> +++ b/drivers/usb/host/ehci-hcd.c >> @@ -1142,6 +1142,27 @@ int ehci_suspend(struct usb_hcd *hcd, bool do_wakeup) >> return -EBUSY; >> } >> >> + /*clear wakeup signal locked in S0 state when device plug in*/ >> + if (ehci->zx_wakeup_clear == 1) { >> + u32 __iomem *reg = &ehci->regs->port_status[4]; >> + u32 t1 = ehci_readl(ehci, reg); >> + >> + t1 &= (u32)~0xf0000; >> + t1 |= PORT_TEST_FORCE; >> + ehci_writel(ehci, t1, reg); >> + t1 = ehci_readl(ehci, reg); >> + usleep_range(1000, 2000); >> + t1 &= (u32)~0xf0000; >> + ehci_writel(ehci, t1, reg); >> + usleep_range(1000, 2000); >> + t1 = ehci_readl(ehci, reg); >> + ehci_writel(ehci, t1 | PORT_CSC, reg); >> + udelay(500); >> + t1 = ehci_readl(ehci, &ehci->regs->status); >> + ehci_writel(ehci, t1 & STS_PCD, &ehci->regs->status); >> + ehci_readl(ehci, &ehci->regs->status); >> + } >> + >> return 0; >> } >> EXPORT_SYMBOL_GPL(ehci_suspend); >> diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c >> index e87cf3a00fa4..a5e27deda83a 100644 >> --- a/drivers/usb/host/ehci-pci.c >> +++ b/drivers/usb/host/ehci-pci.c >> @@ -222,6 +222,10 @@ static int ehci_pci_setup(struct usb_hcd *hcd) >> ehci->has_synopsys_hc_bug = 1; >> } >> break; >> + case PCI_VENDOR_ID_ZHAOXIN: >> + if (pdev->device == 0x3104 && (pdev->revision & 0xf0) == 0x90) >> + ehci->zx_wakeup_clear = 1; >> + break; >> } >> >> /* optional debug port, normally in the first BAR */ >> diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h >> index 59fd523c55f3..8da080a54668 100644 >> --- a/drivers/usb/host/ehci.h >> +++ b/drivers/usb/host/ehci.h >> @@ -219,6 +219,7 @@ struct ehci_hcd { /* one per controller */ >> unsigned need_oc_pp_cycle:1; /* MPC834X port power */ >> unsigned imx28_write_fix:1; /* For Freescale i.MX28 */ >> unsigned is_aspeed:1; >> + unsigned zx_wakeup_clear:1; >> >> /* required for usb32 quirk */ >> #define OHCI_CTRL_HCFS (3 << 6) >> >> >> Content-type: Text/plain >> >> No virus found >> Checked by Hillstone Network AntiVirus

2 1

Re: [PATCH OLK-5.10 v3 1/7] rtc: Fix set RTC time delay 500ms on some Zhaoxin SOCs
by Zheng Zengkai 23 Feb '22

23 Feb '22

Hi Jackie, Leo 在 2022/2/22 17:46, Jackie Liu 写道: > > > 在 2022/2/22 下午4:16, Zheng Zengkai 写道: >> From: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> >> >> zhaoxin inclusion >> category: bugfix >> bugzilla: https://gitee.com/openeuler/kernel/issues/I40QDN >> CVE: NA >> >> ---------------------------------------------------------------- >> >> When the RTC divider is changed from reset to an operating time base, >> the first update cycle should be 500ms later. But on some Zhaoxin SOCs, >> this first update cycle is one second later. >> So set RTC time on these Zhaoxin SOCs will causing 500ms delay. >> Skip setup RTC divider on these SOCs in mc146818_set_time to fix it. >> >> Signed-off-by: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> >> Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> >> --- >> drivers/rtc/rtc-mc146818-lib.c | 16 ++++++++++++++++ >> 1 file changed, 16 insertions(+) >> >> diff --git a/drivers/rtc/rtc-mc146818-lib.c b/drivers/rtc/rtc-mc146818-lib.c >> index 2ecd8752b088..96d9d0219394 100644 >> --- a/drivers/rtc/rtc-mc146818-lib.c >> +++ b/drivers/rtc/rtc-mc146818-lib.c >> @@ -171,8 +171,17 @@ int mc146818_set_time(struct rtc_time *time) >> >> save_control = CMOS_READ(RTC_CONTROL); >> CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL); >> +#ifdef CONFIG_X86 >> + if (!((boot_cpu_data.x86_vendor == X86_VENDOR_CENTAUR || >> + boot_cpu_data.x86_vendor == X86_VENDOR_ZHAOXIN) && >> + (boot_cpu_data.x86 <= 7 && boot_cpu_data.x86_model <= 59))) { >> + save_freq_select = CMOS_READ(RTC_FREQ_SELECT); >> + CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT); >> + } >> +#else >> save_freq_select = CMOS_READ(RTC_FREQ_SELECT); >> CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT); >> +#endif >> >> #ifdef CONFIG_MACH_DECSTATION >> CMOS_WRITE(real_yrs, RTC_DEC_YEAR); >> @@ -190,7 +199,14 @@ int mc146818_set_time(struct rtc_time *time) >> #endif >> >> CMOS_WRITE(save_control, RTC_CONTROL); >> +#ifdef CONFIG_X86 >> + if (!((boot_cpu_data.x86_vendor == X86_VENDOR_CENTAUR || >> + boot_cpu_data.x86_vendor == X86_VENDOR_ZHAOXIN) && >> + (boot_cpu_data.x86 <= 7 && boot_cpu_data.x86_model <= 59))) > 在这里直接写个 #endif 后面的 else 和 endif 就不需要了 > >> + CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT); >> +#else >> CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT); >> +#endif 这里依据上次兆芯同事解释的代码逻辑： X86架构情况下，兆芯的相应平台不执行CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT), 即 commit message中Skip setup RTC divider on these SOCs in mc146818_set_time to fix it; 而其他架构(#else 分支)，仍然需要执行CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT); @Jackie @ Leo，两位看下理解是否OK？ >> >> spin_unlock_irqrestore(&rtc_lock, flags); >> >> >> >> Content-type: Text/plain >> >> No virus found >> Checked by Hillstone Network AntiVirus

2 1

Re: [PATCH OLK-5.10 v3 3/7] EHCI: Clear wakeup signal locked in S0 state when device plug in
by Zheng Zengkai 23 Feb '22

23 Feb '22

Hi Jackie, 在 2022/2/22 17:49, Jackie Liu 写道: > > > 在 2022/2/22 下午4:16, Zheng Zengkai 写道: >> From: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> >> >> zhaoxin inclusion >> category: feature >> bugzilla: https://gitee.com/openeuler/kernel/issues/I40QDN >> CVE: NA >> >> ---------------------------------------------------------------- >> >> If we plug in a LS/FS device on USB2 port of EHCI, it will latch a wakeup >> signal in EHCI internal. This is a bug of EHCI for Some project of >> ZhaoXin. If enable EHCI runtime suspend and no device attach. >> PM core will let EHCI go to D3 to save power. However, once EHCI go to D3, >> it will release wakeup signal that latched on device connect to port >> during S0. Which will generate a SCI interrupt and bring EHCI to D0. >> But without device connect, EHCI will go to D3 again. >> So, there is suspend-resume loop and generate SCI interrupt Continuously. >> >> In order to fix this issues, we need to clear the wakeup signal latched >> in EHCI when EHCI suspend function is called. >> >> Signed-off-by: LeoLiu-oc <LeoLiu-oc(a)zhaoxin.com> >> Signed-off-by: Zheng Zengkai <zhengzengkai(a)huawei.com> >> --- >> drivers/pci/pci-driver.c | 6 +++++- >> drivers/usb/host/ehci-hcd.c | 21 +++++++++++++++++++++ >> drivers/usb/host/ehci-pci.c | 4 ++++ >> drivers/usb/host/ehci.h | 1 + >> 4 files changed, 31 insertions(+), 1 deletion(-) >> >> diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c >> index 8b587fc97f7b..c33d7e0a60b5 100644 >> --- a/drivers/pci/pci-driver.c >> +++ b/drivers/pci/pci-driver.c >> @@ -518,7 +518,11 @@ static int pci_restore_standard_config(struct pci_dev *pci_dev) >> } >> >> pci_restore_state(pci_dev); >> - pci_pme_restore(pci_dev); >> + if (!((pci_dev->vendor == PCI_VENDOR_ID_ZHAOXIN) && >> + (pci_dev->device == 0x3104) && >> + ((pci_dev->revision & 0xf0) == 0x90)) || > >> + !(pci_dev->class == PCI_CLASS_SERIAL_USB_EHCI)) > 上面这句话是不是改变了通用逻辑？增加了一个 pci_dev->class != > PCI_CLASS_SERIAL_USB_EHCI 才进行 restore？ > >> + pci_pme_restore(pci_dev); 逻辑上应该是和！((pci_dev->vendor == PCI_VENDOR_ID_ZHAOXIN) && (pci_dev->device == 0x3104) && ((pci_dev->revision & 0xf0) == 0x90) && (pci_dev->class == PCI_CLASS_SERIAL_USB_EHCI)）等同的, 即只有zhaoxin的0x3104 devid的PCI_CLASS_SERIAL_USB_EHCI设备不做pci_pme_restore(pci_dev)操作 >> return 0; >> } >> >> diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c >> index 8aff19ff8e8f..586e2735d6e0 100644 >> --- a/drivers/usb/host/ehci-hcd.c >> +++ b/drivers/usb/host/ehci-hcd.c >> @@ -1142,6 +1142,27 @@ int ehci_suspend(struct usb_hcd *hcd, bool do_wakeup) >> return -EBUSY; >> } >> >> + /*clear wakeup signal locked in S0 state when device plug in*/ >> + if (ehci->zx_wakeup_clear == 1) { >> + u32 __iomem *reg = &ehci->regs->port_status[4]; >> + u32 t1 = ehci_readl(ehci, reg); >> + >> + t1 &= (u32)~0xf0000; >> + t1 |= PORT_TEST_FORCE; >> + ehci_writel(ehci, t1, reg); >> + t1 = ehci_readl(ehci, reg); >> + usleep_range(1000, 2000); >> + t1 &= (u32)~0xf0000; >> + ehci_writel(ehci, t1, reg); >> + usleep_range(1000, 2000); >> + t1 = ehci_readl(ehci, reg); >> + ehci_writel(ehci, t1 | PORT_CSC, reg); >> + udelay(500); >> + t1 = ehci_readl(ehci, &ehci->regs->status); >> + ehci_writel(ehci, t1 & STS_PCD, &ehci->regs->status); >> + ehci_readl(ehci, &ehci->regs->status); >> + } >> + >> return 0; >> } >> EXPORT_SYMBOL_GPL(ehci_suspend); >> diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c >> index e87cf3a00fa4..a5e27deda83a 100644 >> --- a/drivers/usb/host/ehci-pci.c >> +++ b/drivers/usb/host/ehci-pci.c >> @@ -222,6 +222,10 @@ static int ehci_pci_setup(struct usb_hcd *hcd) >> ehci->has_synopsys_hc_bug = 1; >> } >> break; >> + case PCI_VENDOR_ID_ZHAOXIN: >> + if (pdev->device == 0x3104 && (pdev->revision & 0xf0) == 0x90) >> + ehci->zx_wakeup_clear = 1; >> + break; >> } >> >> /* optional debug port, normally in the first BAR */ >> diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h >> index 59fd523c55f3..8da080a54668 100644 >> --- a/drivers/usb/host/ehci.h >> +++ b/drivers/usb/host/ehci.h >> @@ -219,6 +219,7 @@ struct ehci_hcd { /* one per controller */ >> unsigned need_oc_pp_cycle:1; /* MPC834X port power */ >> unsigned imx28_write_fix:1; /* For Freescale i.MX28 */ >> unsigned is_aspeed:1; >> + unsigned zx_wakeup_clear:1; >> >> /* required for usb32 quirk */ >> #define OHCI_CTRL_HCFS (3 << 6) >> >> >> Content-type: Text/plain >> >> No virus found >> Checked by Hillstone Network AntiVirus

1 0

[PATCH OLK-5.10,v4,0/3] Add support for kunpeng920 Ultrasoc System Memory Buffer driver
by Qi Liu 23 Feb '22

23 Feb '22

Add support for kunpeng920 Ultrasoc System Memory Buffer driver v3->4: Resend this patchset as openeuler maillist hasn't received patch[1/3] in v3 series. Qi Liu (3): coresight: etm4x: Modify core-commit to avoid HiSilicon ETM overflow drivers/coresight: Add Ultrasoc System Memory Buffer driver arm64: openeuler_defconfig: Enable config for ultrasoc driver arch/arm64/configs/openeuler_defconfig | 13 +- drivers/hwtracing/coresight/Kconfig | 20 + drivers/hwtracing/coresight/Makefile | 1 + .../coresight/coresight-etm4x-core.c | 98 +++ drivers/hwtracing/coresight/coresight-etm4x.h | 8 + drivers/hwtracing/coresight/ultrasoc-smb.c | 602 ++++++++++++++++++ drivers/hwtracing/coresight/ultrasoc-smb.h | 100 +++ 7 files changed, 841 insertions(+), 1 deletion(-) create mode 100644 drivers/hwtracing/coresight/ultrasoc-smb.c create mode 100644 drivers/hwtracing/coresight/ultrasoc-smb.h -- 2.33.0

1 3

[PATCH OLK-5.10 v2] uce: copy_from_user scenario support kernel recovery
by Tong Tiangen 22 Feb '22

22 Feb '22

hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I4PM10 CVE: NA -------------------------------- During kernel copy_from_user processing, the kernel triggers a RAS exception when reading pages. In this solution, we identify this scenario in the kernel do_sea processing process, send SIGBUS signals to the process that triggers copy_from_user and isolate memory pages, preventing kernel panic. At the same time, we use both cmdline(uce_kernel_recovery) and proc (/proc/sys/kernel/uce_kernel_recovery) to control this feature on/off. Signed-off-by: Tong Tiangen <tongtiangen(a)huawei.com> --- v1->v2: 1. update commit msg. 2. change copy_from_user return value. 3. change copy_from_user proc control bit. arch/arm64/Kconfig | 9 ++ arch/arm64/include/asm/exception.h | 12 +++ arch/arm64/lib/copy_from_user.S | 5 + arch/arm64/mm/fault.c | 154 +++++++++++++++++++++++++++++ include/linux/kernel.h | 4 + kernel/sysctl.c | 11 +++ 6 files changed, 195 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index c0f6a275f798..5858cb9a3dac 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -2155,6 +2155,15 @@ config ARCH_HIBERNATION_HEADER config ARCH_SUSPEND_POSSIBLE def_bool y +config UCE_KERNEL_RECOVERY + bool "uce kernel recovery from special scenario" + def_bool n + help + With ARM v8.2 RAS Extension, SEA are usually triggered when memory errors + are consumed. In some cases, if the error address is in a user page there + is a chance to recover. Such as error occurs in COW and pagecache reading + scenario, we can isolate this page and killing process instead of die. + endmenu menu "CPU Power Management" diff --git a/arch/arm64/include/asm/exception.h b/arch/arm64/include/asm/exception.h index 0756191f44f6..bad92fe763fb 100644 --- a/arch/arm64/include/asm/exception.h +++ b/arch/arm64/include/asm/exception.h @@ -53,4 +53,16 @@ void do_cp15instr(unsigned int esr, struct pt_regs *regs); void do_el0_svc(struct pt_regs *regs); void do_el0_svc_compat(struct pt_regs *regs); void do_ptrauth_fault(struct pt_regs *regs, unsigned int esr); + +#ifdef CONFIG_UCE_KERNEL_RECOVERY +struct uce_kernel_recovery_info { + int (*fn)(void); + const char *name; + unsigned long addr; + unsigned long size; +}; + +extern int copy_from_user_sea_fallback(void); +#endif + #endif /* __ASM_EXCEPTION_H */ diff --git a/arch/arm64/lib/copy_from_user.S b/arch/arm64/lib/copy_from_user.S index 2cf999e41d30..b03ea0faa118 100644 --- a/arch/arm64/lib/copy_from_user.S +++ b/arch/arm64/lib/copy_from_user.S @@ -60,6 +60,11 @@ SYM_FUNC_START(__arch_copy_from_user) #include "copy_template.S" mov x0, #0 // Nothing to copy ret + + .global copy_from_user_sea_fallback +copy_from_user_sea_fallback: + sub x0, end, dst // bytes not copied + ret SYM_FUNC_END(__arch_copy_from_user) EXPORT_SYMBOL(__arch_copy_from_user) diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index 3fc5aceb72eb..7f76e277daa3 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -634,6 +634,127 @@ static int do_bad(unsigned long addr, unsigned int esr, struct pt_regs *regs) return 1; /* "fault" */ } +#ifdef CONFIG_UCE_KERNEL_RECOVERY +int kernel_access_sea_recovery; + +#define UCE_KER_REC_NUM ARRAY_SIZE(reco_info) +static struct uce_kernel_recovery_info reco_info[] = { + {NULL, NULL, 0, 0}, + {NULL, NULL, 0, 0}, + {copy_from_user_sea_fallback, "__arch_copy_from_user", (unsigned long)__arch_copy_from_user, 0}, +}; + +static int __init kernel_access_sea_recovery_init(void) +{ + unsigned long addr, size, offset; + unsigned int i; + + for (i = 0; i < UCE_KER_REC_NUM; i++) { + addr = reco_info[i].addr; + if (!kallsyms_lookup_size_offset(addr, &size, &offset)) { + pr_info("UCE: symbol %s lookup addr fail.\n", + reco_info[i].name); + size = 0; + } + + reco_info[i].size = size; + } + + return 1; +} +fs_initcall(kernel_access_sea_recovery_init); + +static int __init enable_kernel_access_sea_recovery(char *str) +{ + int max = (1 << UCE_KER_REC_NUM) - 1; + int val; + + if (kstrtoint(str, 0, &val)) + return -EINVAL; + + if (val < 0 || val > max) { + pr_info("UCE: invalid uce_kernel_recovery value %d", val); + return -EINVAL; + } + + kernel_access_sea_recovery = val; + + return 1; +} +__setup("uce_kernel_recovery=", enable_kernel_access_sea_recovery); + +/* + * what is kernel recovery? + * If the process's private data is accessed in the kernel mode to trigger + * special sea fault, it can controlled by killing the process and isolating + * the failure pages instead of die. + */ +static int is_in_kernel_recovery(unsigned int esr, struct pt_regs *regs) +{ + /* + * target insn: ldp-pre, ldp-post, ldp-offset, + * ldr-64bit-pre/pose, ldr-32bit-pre/post, ldrb-pre/post, ldrh-pre/post + */ + u32 target_insn[] = {0xa8c, 0xa9c, 0xa94, 0xf84, 0x784, 0x384, 0xb84}; + void *pc = (void *)instruction_pointer(regs); + struct uce_kernel_recovery_info *info; + bool insn_match = false; + u32 insn; + int i; + + pr_emerg("UCE: %s-%d, kernel recovery: 0x%x, esr: 0x%08x -- %s, %pS\n", + current->comm, current->pid, kernel_access_sea_recovery, esr, + esr_get_class_string(esr), pc); + + if (aarch64_insn_read((void *)pc, &insn)) { + pr_emerg("UCE: insn read fail.\n"); + return -EFAULT; + } + + /* + * We process special ESR: + * EC : 0b100101 Data Abort taken without a change in Exception level. + * DFSC : 0b010000 Synchronous External abort, not on translation table + * walk or hardware update of translation table. + * eg: 0x96000610 + */ + if (ESR_ELx_EC(esr) != ESR_ELx_EC_DABT_CUR || + (esr & ESR_ELx_FSC) != ESR_ELx_FSC_EXTABT) { + pr_emerg("UCE: esr not match.\n"); + return -EINVAL; + } + + insn = (insn >> 20) & 0xffc; + for (i = 0; i < ARRAY_SIZE(target_insn); i++) { + if (insn == target_insn[i]) { + insn_match = true; + break; + } + } + + if (!insn_match) { + pr_emerg("UCE: insn 0x%x is not match.\n", insn); + return -EINVAL; + } + + for (i = 0; i < UCE_KER_REC_NUM; i++) { + if (!((kernel_access_sea_recovery >> i) & 0x1)) + continue; + + info = &reco_info[i]; + if (info->fn && regs->pc >= info->addr && + regs->pc < (info->addr + info->size)) { + pr_emerg("UCE: total match %s success.\n", info->name); + return i; + } + } + + pr_emerg("UCE: symbol is not match or switch if off, kernel recovery %d.\n", + kernel_access_sea_recovery); + return -EINVAL; +} +#endif + static int do_sea(unsigned long addr, unsigned int esr, struct pt_regs *regs) { const struct fault_info *inf; @@ -649,6 +770,39 @@ static int do_sea(unsigned long addr, unsigned int esr, struct pt_regs *regs) return 0; } +#ifdef CONFIG_UCE_KERNEL_RECOVERY + if (!user_mode(regs)) { + int idx; + + if (!current->mm || !kernel_access_sea_recovery) { + pr_emerg("UCE: kernel recovery %d, %s-%d is %s-thread.\n", + kernel_access_sea_recovery, + current->comm, current->pid, + (current->mm) ? "user" : "kernel"); + die("Uncorrected hardware memory error in kernel-access\n", + regs, esr); + } + + idx = is_in_kernel_recovery(esr, regs); + if (idx >= 0 && idx < UCE_KER_REC_NUM) { + current->thread.fault_address = 0; + current->thread.fault_code = esr; + regs->pc = (unsigned long)reco_info[idx].fn; + + if (esr & ESR_ELx_FnV) + siaddr = NULL; + else + siaddr = (void __user *)addr; + + arm64_force_sig_fault(inf->sig, inf->code, siaddr, + "Uncorrected hardware memory use with kernel recovery in kernel-access\n"); + } else { + die("Uncorrected hardware memory error (not match idx or sence switch is off) in kernel-access\n", + regs, esr); + } + } +#endif + if (esr & ESR_ELx_FnV) siaddr = NULL; else diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 78a0907f0b04..b634fb1cce38 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -558,6 +558,10 @@ extern int sysctl_panic_on_stackoverflow; extern bool crash_kexec_post_notifiers; +#ifdef CONFIG_UCE_KERNEL_RECOVERY +extern int kernel_access_sea_recovery; +#endif + /* * panic_cpu is used for synchronizing panic() and crash_kexec() execution. It * holds a CPU number which is executing panic() currently. A value of diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 89ef0c1a1642..e38fff657683 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -2711,6 +2711,17 @@ static struct ctl_table kern_table[] = { .extra1 = &one_hundred, .extra2 = &one_thousand, }, +#endif +#if defined(CONFIG_UCE_KERNEL_RECOVERY) + { + .procname = "uce_kernel_recovery", + .data = &kernel_access_sea_recovery, + .maxlen = sizeof(kernel_access_sea_recovery), + .mode = 0644, + .proc_handler = proc_dointvec_minmax, + .extra1 = &four, + .extra2 = &four, + }, #endif { } }; -- 2.18.0.huawei.25

2 1