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[openEuler/rdma-core v4] libhns: Support user to choose using UD sl or pktype to adapt MPI APP
by Chengchang Tang 09 Jun '23

09 Jun '23

From: Junxian Huang <huangjunxian6(a)hisilicon.com> driver inclusion category: bugfix bugzilla: https://gitee.com/src-openeuler/rdma-core/issues/I7A5YM --------------------------------------------------------------- According to Annex17_RoCEv2 (A17.4.5.2), for RoCEv2 UD, a CQE should carry a flag that indicates if the received frame is an IPv4, IPv6 or RoCE packet. But currently, the values of the flag corresponding to these packet types haven't been defined yet in WC. In UCX, 'sl' in ibv_wc for UD is used as the packet type flag, and the packet type values have already been defined in the UCX patch of https://github.com/openucx/ucx/commit/ed28845b88633e65d64fce8ec880060aa61bd… Therefore, to adapt UCX, add a create flag to hnsdv_create_qp() to allow users to choose whether they use 'sl' in ibv_wc as service level or packet type for UD. For the latter, obtain and translate the packet type from CQE and fill it to 'sl' in ibv_wc. Signed-off-by: Junxian Huang <huangjunxian6(a)hisilicon.com> Signed-off-by: Haoyue Xu <xuhaoyue1(a)hisilicon.com> --- providers/hns/hns_roce_u.h | 11 +++++++++++ providers/hns/hns_roce_u_hw_v2.c | 32 +++++++++++++++++++++++++++++--- providers/hns/hns_roce_u_verbs.c | 16 ++++++++++++++++ providers/hns/hnsdv.h | 1 + 4 files changed, 57 insertions(+), 3 deletions(-) diff --git a/providers/hns/hns_roce_u.h b/providers/hns/hns_roce_u.h index 41e9599..e3012e1 100644 --- a/providers/hns/hns_roce_u.h +++ b/providers/hns/hns_roce_u.h @@ -195,6 +195,12 @@ enum hns_roce_tc_map_mode { HNS_ROCE_TC_MAP_MODE_DSCP, }; +enum hns_roce_pktype { + HNS_ROCE_PKTYPE_ROCE_V1, + HNS_ROCE_PKTYPE_ROCE_V2_IPV6, + HNS_ROCE_PKTYPE_ROCE_V2_IPV4, +}; + struct hns_roce_db_page { struct hns_roce_db_page *prev, *next; struct hns_roce_buf buf; @@ -406,6 +412,11 @@ struct hns_roce_qp { void *cur_wqe; unsigned int rb_sq_head; /* roll back sq head */ struct hns_roce_sge_info sge_info; + + /* Just for UD. If not enabled, 'sl' in ibv_wc + * will be filled with 'port_type' in cqe. + */ + bool enable_ud_sl; }; struct hns_roce_av { diff --git a/providers/hns/hns_roce_u_hw_v2.c b/providers/hns/hns_roce_u_hw_v2.c index 4b0ec5c..ee2fffe 100644 --- a/providers/hns/hns_roce_u_hw_v2.c +++ b/providers/hns/hns_roce_u_hw_v2.c @@ -522,9 +522,24 @@ static void handle_recv_rq_inl(struct hns_roce_v2_cqe *cqe, handle_recv_inl_data(cqe, &(cur_qp->rq_rinl_buf), wr_num, wqe_buf); } -static void parse_for_ud_qp(struct hns_roce_v2_cqe *cqe, struct ibv_wc *wc) +static const uint8_t pktype_for_ud[] = { + HNS_ROCE_PKTYPE_ROCE_V1, + HNS_ROCE_PKTYPE_ROCE_V2_IPV4, + HNS_ROCE_PKTYPE_ROCE_V2_IPV6 +}; + +static void parse_for_ud_qp(struct hns_roce_v2_cqe *cqe, struct ibv_wc *wc, + bool enable_ud_sl) { - wc->sl = hr_reg_read(cqe, CQE_SL); + uint8_t port_type; + + if (enable_ud_sl) { + wc->sl = hr_reg_read(cqe, CQE_SL); + } else { + port_type = hr_reg_read(cqe, CQE_PORT_TYPE); + wc->sl = pktype_for_ud[port_type]; + } + wc->src_qp = hr_reg_read(cqe, CQE_RMT_QPN); wc->slid = 0; wc->wc_flags |= hr_reg_read(cqe, CQE_GRH) ? IBV_WC_GRH : 0; @@ -554,7 +569,7 @@ static int parse_cqe_for_resp(struct hns_roce_v2_cqe *cqe, struct ibv_wc *wc, ++wq->tail; if (hr_qp->verbs_qp.qp.qp_type == IBV_QPT_UD) - parse_for_ud_qp(cqe, wc); + parse_for_ud_qp(cqe, wc, hr_qp->enable_ud_sl); if (hr_reg_read(cqe, CQE_CQE_INLINE)) handle_recv_cqe_inl_from_rq(cqe, hr_qp); @@ -2126,6 +2141,17 @@ static uint32_t wc_read_slid(struct ibv_cq_ex *current) static uint8_t wc_read_sl(struct ibv_cq_ex *current) { struct hns_roce_cq *cq = to_hr_cq(ibv_cq_ex_to_cq(current)); + struct hns_roce_context *ctx = to_hr_ctx(current->context); + struct hns_roce_qp *hr_qp; + uint8_t port_type; + uint32_t qpn; + + qpn = hr_reg_read(cq->cqe, CQE_LCL_QPN); + hr_qp = hns_roce_v2_find_qp(ctx, qpn); + if (hr_qp->verbs_qp.qp.qp_type == IBV_QPT_UD && !hr_qp->enable_ud_sl) { + port_type = hr_reg_read(cq->cqe, CQE_PORT_TYPE); + return pktype_for_ud[port_type]; + } return (uint8_t)hr_reg_read(cq->cqe, CQE_SL); } diff --git a/providers/hns/hns_roce_u_verbs.c b/providers/hns/hns_roce_u_verbs.c index fa27fc1..4b641ea 100644 --- a/providers/hns/hns_roce_u_verbs.c +++ b/providers/hns/hns_roce_u_verbs.c @@ -1019,6 +1019,11 @@ static int check_qp_congest_type(struct hns_roce_context *ctx, return 0; } +enum { + HNSDV_QP_SUP_CREATE_FLAGS = HNSDV_QP_CREATE_ENABLE_DCA_MODE | + HNSDV_QP_CREATE_ENABLE_UD_SL, +}; + static int check_hnsdv_qp_attr(struct hns_roce_context *ctx, struct hnsdv_qp_init_attr *hns_attr, struct hns_roce_cmd_flag *cmd_flag) @@ -1034,6 +1039,14 @@ static int check_hnsdv_qp_attr(struct hns_roce_context *ctx, return -EINVAL; } + if (hns_attr->comp_mask & HNSDV_QP_INIT_ATTR_MASK_QP_CREATE_FLAGS && + !check_comp_mask(hns_attr->create_flags, + HNSDV_QP_SUP_CREATE_FLAGS)) { + verbs_err(&ctx->ibv_ctx, "invalid create_flags 0x%x.\n", + hns_attr->create_flags); + return -EOPNOTSUPP; + } + ret = check_qp_congest_type(ctx, hns_attr, cmd_flag); if (ret) return ret; @@ -1685,6 +1698,9 @@ static struct ibv_qp *create_qp(struct ibv_context *ibv_ctx, qp_setup_config(attr, qp, context); + if (hns_attr && hns_attr->create_flags & HNSDV_QP_CREATE_ENABLE_UD_SL) + qp->enable_ud_sl = true; + return &qp->verbs_qp.qp; err_dwqe: diff --git a/providers/hns/hnsdv.h b/providers/hns/hnsdv.h index e15b428..365c314 100644 --- a/providers/hns/hnsdv.h +++ b/providers/hns/hnsdv.h @@ -43,6 +43,7 @@ struct ibv_context *hnsdv_open_device(struct ibv_device *device, enum hnsdv_qp_create_flags { HNSDV_QP_CREATE_ENABLE_DCA_MODE = 1 << 0, + HNSDV_QP_CREATE_ENABLE_UD_SL = 1 << 1, }; enum hnsdv_qp_congest_ctrl_type { -- 2.30.0

1 0

[PATCH v4 openEuler-22.03-LTS-SP2 0/4] support ACPI for MPAM 2.0
by Yu Liao 09 Jun '23

09 Jun '23

This patch series support ACPI for MPAM 2.0. v4: add PPTT null check to prevent NULL pointer deference. Erik Kaneda (1): ACPICA: ACPI 6.4: PPTT: add new version of subtable type 1 Hesham Almatary (1): ACPICA: Add support for Arm's MPAM ACPI table version 2 Yu Liao (2): ACPI / PPTT: Find PPTT processor node by cache id ACPI/MPAM: Adapt to Arm's MPAM ACPI table version 2 arch/arm64/kernel/mpam/mpam_device.c | 2 +- drivers/acpi/arm64/Makefile | 2 +- drivers/acpi/arm64/mpam.c | 19 ++- drivers/acpi/arm64/mpam_v2.c | 181 +++++++++++++++++++++++++++ drivers/acpi/pptt.c | 55 ++++++++ include/acpi/actbl2.h | 118 +++++++++++++++++ include/linux/acpi.h | 5 + include/linux/arm_mpam.h | 2 +- 8 files changed, 378 insertions(+), 6 deletions(-) create mode 100644 drivers/acpi/arm64/mpam_v2.c -- 2.25.1

2 5

[PATCH openEuler-22.03-LTS 0/6] Support dynamic_hugetlb on arm64 and fix some bug
by Liu Shixin 09 Jun '23

09 Jun '23

Support dynamic_hugetlb on arm64 and fix some bug. Liu Shixin (6): mm/dynamic_hugetlb: fix kabi broken when enable CONFIG_DYNAMIC_HUGETLB on arm64 mm/dynamic_hugetlb: support dynamic hugetlb on arm64 mm/dynamic_hugetlb: isolate hugepage without dissolve mm/dynamic_hugetlb: replace spin_lock with mutex_lock and fix kabi broken mm/dynamic_hugetlb: set PagePool to bad page mm/dynamic_hugetlb: fix type error of pfn in __hpool_split_gigantic_page() fs/Kconfig | 2 +- fs/hugetlbfs/inode.c | 2 +- include/linux/dynamic_hugetlb.h | 24 +++++++++++++-- include/linux/memcontrol.h | 6 +++- mm/dynamic_hugetlb.c | 54 +++++++++++++++++++++++++++------ mm/hugetlb.c | 7 +++++ 6 files changed, 80 insertions(+), 15 deletions(-) -- 2.25.1

2 7

[PATCH v3 openEuler-22.03-LTS-SP2 0/4] support ACPI for MPAM 2.0
by Yu Liao 08 Jun '23

08 Jun '23

This patch series support ACPI for MPAM 2.0. Erik Kaneda (1): ACPICA: ACPI 6.4: PPTT: add new version of subtable type 1 Hesham Almatary (1): ACPICA: Add support for Arm's MPAM ACPI table version 2 Yu Liao (2): ACPI / PPTT: Find PPTT processor node by cache id ACPI/MPAM: Adapt to Arm's MPAM ACPI table version 2 arch/arm64/kernel/mpam/mpam_device.c | 2 +- drivers/acpi/arm64/Makefile | 2 +- drivers/acpi/arm64/mpam.c | 19 ++- drivers/acpi/arm64/mpam_v2.c | 176 +++++++++++++++++++++++++++ drivers/acpi/pptt.c | 55 +++++++++ include/acpi/actbl2.h | 118 ++++++++++++++++++ include/linux/acpi.h | 5 + include/linux/arm_mpam.h | 2 +- 8 files changed, 373 insertions(+), 6 deletions(-) create mode 100644 drivers/acpi/arm64/mpam_v2.c -- 2.25.1

3 9

[PATCH v4 openEuler-22.03-LTS-SP2 0/4] support ACPI for MPAM 2.0
by Yu Liao 08 Jun '23

08 Jun '23

This patch series support ACPI for MPAM 2.0. Erik Kaneda (1): ACPICA: ACPI 6.4: PPTT: add new version of subtable type 1 Hesham Almatary (1): ACPICA: Add support for Arm's MPAM ACPI table version 2 Yu Liao (2): ACPI / PPTT: Find PPTT processor node by cache id ACPI/MPAM: Adapt to Arm's MPAM ACPI table version 2 arch/arm64/kernel/mpam/mpam_device.c | 2 +- drivers/acpi/arm64/Makefile | 2 +- drivers/acpi/arm64/mpam.c | 19 ++- drivers/acpi/arm64/mpam_v2.c | 176 +++++++++++++++++++++++++++ drivers/acpi/pptt.c | 55 +++++++++ include/acpi/actbl2.h | 118 ++++++++++++++++++ include/linux/acpi.h | 5 + include/linux/arm_mpam.h | 2 +- 8 files changed, 373 insertions(+), 6 deletions(-) create mode 100644 drivers/acpi/arm64/mpam_v2.c -- 2.25.1

2 5

[PATCH openEuler-1.0-LTS 01/21] udp: Call inet6_destroy_sock() in setsockopt(IPV6_ADDRFORM).
by Yongqiang Liu 08 Jun '23

08 Jun '23

From: Kuniyuki Iwashima <kuniyu(a)amazon.com> stable inclusion from stable-v4.19.282 commit 9577d9f0fbf1eea95f61b02627572c401499aa32 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I7BZ5U CVE: NA -------------------------------- commit 21985f43376cee092702d6cb963ff97a9d2ede68 upstream. Commit 4b340ae20d0e ("IPv6: Complete IPV6_DONTFRAG support") forgot to add a change to free inet6_sk(sk)->rxpmtu while converting an IPv6 socket into IPv4 with IPV6_ADDRFORM. After conversion, sk_prot is changed to udp_prot and ->destroy() never cleans it up, resulting in a memory leak. This is due to the discrepancy between inet6_destroy_sock() and IPV6_ADDRFORM, so let's call inet6_destroy_sock() from IPV6_ADDRFORM to remove the difference. However, this is not enough for now because rxpmtu can be changed without lock_sock() after commit 03485f2adcde ("udpv6: Add lockless sendmsg() support"). We will fix this case in the following patch. Note we will rename inet6_destroy_sock() to inet6_cleanup_sock() and remove unnecessary inet6_destroy_sock() calls in sk_prot->destroy() in the future. Fixes: 4b340ae20d0e ("IPv6: Complete IPV6_DONTFRAG support") Signed-off-by: Kuniyuki Iwashima <kuniyu(a)amazon.com> Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Ziyang Xuan <william.xuanziyang(a)huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Yongqiang Liu <liuyongqiang13(a)huawei.com> --- include/net/ipv6.h | 1 + net/ipv6/af_inet6.c | 6 ++++++ net/ipv6/ipv6_sockglue.c | 20 ++++++++------------ 3 files changed, 15 insertions(+), 12 deletions(-) diff --git a/include/net/ipv6.h b/include/net/ipv6.h index 4c2e40882e88..f33be9653aaa 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -1040,6 +1040,7 @@ void ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err, __be16 port, void ipv6_local_error(struct sock *sk, int err, struct flowi6 *fl6, u32 info); void ipv6_local_rxpmtu(struct sock *sk, struct flowi6 *fl6, u32 mtu); +void inet6_cleanup_sock(struct sock *sk); int inet6_release(struct socket *sock); int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len); int inet6_getname(struct socket *sock, struct sockaddr *uaddr, diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index a6be1ad6994a..d285db413ceb 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -505,6 +505,12 @@ void inet6_destroy_sock(struct sock *sk) } EXPORT_SYMBOL_GPL(inet6_destroy_sock); +void inet6_cleanup_sock(struct sock *sk) +{ + inet6_destroy_sock(sk); +} +EXPORT_SYMBOL_GPL(inet6_cleanup_sock); + /* * This does both peername and sockname. */ diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index dccbc71d7f8e..441febd19674 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -180,9 +180,6 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, if (optlen < sizeof(int)) goto e_inval; if (val == PF_INET) { - struct ipv6_txoptions *opt; - struct sk_buff *pktopt; - if (sk->sk_type == SOCK_RAW) break; @@ -213,7 +210,6 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, break; } - fl6_free_socklist(sk); __ipv6_sock_mc_close(sk); __ipv6_sock_ac_close(sk); @@ -251,14 +247,14 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, sk->sk_socket->ops = &inet_dgram_ops; sk->sk_family = PF_INET; } - opt = xchg((__force struct ipv6_txoptions **)&np->opt, - NULL); - if (opt) { - atomic_sub(opt->tot_len, &sk->sk_omem_alloc); - txopt_put(opt); - } - pktopt = xchg(&np->pktoptions, NULL); - kfree_skb(pktopt); + + /* Disable all options not to allocate memory anymore, + * but there is still a race. See the lockless path + * in udpv6_sendmsg() and ipv6_local_rxpmtu(). + */ + np->rxopt.all = 0; + + inet6_cleanup_sock(sk); /* * ... and add it to the refcnt debug socks count -- 2.25.1

1 20

[PATCH openEuler-22.03-LTS-SP2] perf: hisi: delete global enable pmu from xxx_write_counter()
by Junhao He 08 Jun '23

08 Jun '23

driver inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I7C2U9 CVE: NA ---------------------------------------------------------------------- UC PMU global enable register be setup in pmu callback pmu::enable(), which also be wiil setup in pmu::start()->xxx_write_counter(). And it will start statistical information when callback pmu:start() return, not is pmu:enable() return. Therefore the driver counter counts more data than normal. Fixes: 5ed05cb ("drivers/perf: hisi: Add support for HiSilicon UC PMU driver") Signed-off-by: Junhao He <hejunhao3(a)huawei.com> --- drivers/perf/hisilicon/hisi_uncore_uc_pmu.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/perf/hisilicon/hisi_uncore_uc_pmu.c b/drivers/perf/hisilicon/hisi_uncore_uc_pmu.c index b7b7d3d9d8be..ff9c63f66abc 100644 --- a/drivers/perf/hisilicon/hisi_uncore_uc_pmu.c +++ b/drivers/perf/hisilicon/hisi_uncore_uc_pmu.c @@ -292,7 +292,6 @@ static u64 hisi_uc_pmu_read_counter(struct hisi_pmu *uc_pmu, static void hisi_uc_pmu_write_counter(struct hisi_pmu *uc_pmu, struct hw_perf_event *hwc, u64 val) { - hisi_uc_pmu_start_counters(uc_pmu); writeq(val, uc_pmu->base + HISI_UC_CNTR_REG(hwc->idx)); } -- 2.33.0

2 1

[PATCH openEuler-22.03-LTS-SP2] xfrm: Reinject transport-mode packets through workqueue
by Liu Jian 08 Jun '23

08 Jun '23

mainline inclusion from mainline-v6.1-rc1 commit 4f4920669d21e1060b7243e5118dc3b71ced1276 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I5K0NK CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- The following warning is displayed when the tcp6-multi-diffip11 stress test case of the LTP test suite is tested: watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [ns-tcpserver:48198] CPU: 0 PID: 48198 Comm: ns-tcpserver Kdump: loaded Not tainted 6.0.0-rc6+ #39 Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : des3_ede_encrypt+0x27c/0x460 [libdes] lr : 0x3f sp : ffff80000ceaa1b0 x29: ffff80000ceaa1b0 x28: ffff0000df056100 x27: ffff0000e51e5280 x26: ffff80004df75030 x25: ffff0000e51e4600 x24: 000000000000003b x23: 0000000000802080 x22: 000000000000003d x21: 0000000000000038 x20: 0000000080000020 x19: 000000000000000a x18: 0000000000000033 x17: ffff0000e51e4780 x16: ffff80004e2d1448 x15: ffff80004e2d1248 x14: ffff0000e51e4680 x13: ffff80004e2d1348 x12: ffff80004e2d1548 x11: ffff80004e2d1848 x10: ffff80004e2d1648 x9 : ffff80004e2d1748 x8 : ffff80004e2d1948 x7 : 000000000bcaf83d x6 : 000000000000001b x5 : ffff80004e2d1048 x4 : 00000000761bf3bf x3 : 000000007f1dd0a3 x2 : ffff0000e51e4780 x1 : ffff0000e3b9a2f8 x0 : 00000000db44e872 Call trace: des3_ede_encrypt+0x27c/0x460 [libdes] crypto_des3_ede_encrypt+0x1c/0x30 [des_generic] crypto_cbc_encrypt+0x148/0x190 crypto_skcipher_encrypt+0x2c/0x40 crypto_authenc_encrypt+0xc8/0xfc [authenc] crypto_aead_encrypt+0x2c/0x40 echainiv_encrypt+0x144/0x1a0 [echainiv] crypto_aead_encrypt+0x2c/0x40 esp6_output_tail+0x1c8/0x5d0 [esp6] esp6_output+0x120/0x278 [esp6] xfrm_output_one+0x458/0x4ec xfrm_output_resume+0x6c/0x1f0 xfrm_output+0xac/0x4ac __xfrm6_output+0x130/0x270 xfrm6_output+0x60/0xec ip6_xmit+0x2ec/0x5bc inet6_csk_xmit+0xbc/0x10c __tcp_transmit_skb+0x460/0x8c0 tcp_write_xmit+0x348/0x890 __tcp_push_pending_frames+0x44/0x110 tcp_rcv_established+0x3c8/0x720 tcp_v6_do_rcv+0xdc/0x4a0 tcp_v6_rcv+0xc24/0xcb0 ip6_protocol_deliver_rcu+0xf0/0x574 ip6_input_finish+0x48/0x7c ip6_input+0x48/0xc0 ip6_rcv_finish+0x80/0x9c xfrm_trans_reinject+0xb0/0xf4 tasklet_action_common.constprop.0+0xf8/0x134 tasklet_action+0x30/0x3c __do_softirq+0x128/0x368 do_softirq+0xb4/0xc0 __local_bh_enable_ip+0xb0/0xb4 put_cpu_fpsimd_context+0x40/0x70 kernel_neon_end+0x20/0x40 sha1_base_do_update.constprop.0.isra.0+0x11c/0x140 [sha1_ce] sha1_ce_finup+0x94/0x110 [sha1_ce] crypto_shash_finup+0x34/0xc0 hmac_finup+0x48/0xe0 crypto_shash_finup+0x34/0xc0 shash_digest_unaligned+0x74/0x90 crypto_shash_digest+0x4c/0x9c shash_ahash_digest+0xc8/0xf0 shash_async_digest+0x28/0x34 crypto_ahash_digest+0x48/0xcc crypto_authenc_genicv+0x88/0xcc [authenc] crypto_authenc_encrypt+0xd8/0xfc [authenc] crypto_aead_encrypt+0x2c/0x40 echainiv_encrypt+0x144/0x1a0 [echainiv] crypto_aead_encrypt+0x2c/0x40 esp6_output_tail+0x1c8/0x5d0 [esp6] esp6_output+0x120/0x278 [esp6] xfrm_output_one+0x458/0x4ec xfrm_output_resume+0x6c/0x1f0 xfrm_output+0xac/0x4ac __xfrm6_output+0x130/0x270 xfrm6_output+0x60/0xec ip6_xmit+0x2ec/0x5bc inet6_csk_xmit+0xbc/0x10c __tcp_transmit_skb+0x460/0x8c0 tcp_write_xmit+0x348/0x890 __tcp_push_pending_frames+0x44/0x110 tcp_push+0xb4/0x14c tcp_sendmsg_locked+0x71c/0xb64 tcp_sendmsg+0x40/0x6c inet6_sendmsg+0x4c/0x80 sock_sendmsg+0x5c/0x6c __sys_sendto+0x128/0x15c __arm64_sys_sendto+0x30/0x40 invoke_syscall+0x50/0x120 el0_svc_common.constprop.0+0x170/0x194 do_el0_svc+0x38/0x4c el0_svc+0x28/0xe0 el0t_64_sync_handler+0xbc/0x13c el0t_64_sync+0x180/0x184 Get softirq info by bcc tool: ./softirqs -NT 10 Tracing soft irq event time... Hit Ctrl-C to end. 15:34:34 SOFTIRQ TOTAL_nsecs block 158990 timer 20030920 sched 46577080 net_rx 676746820 tasklet 9906067650 15:34:45 SOFTIRQ TOTAL_nsecs block 86100 sched 38849790 net_rx 676532470 timer 1163848790 tasklet 9409019620 15:34:55 SOFTIRQ TOTAL_nsecs sched 58078450 net_rx 475156720 timer 533832410 tasklet 9431333300 The tasklet software interrupt takes too much time. Therefore, the xfrm_trans_reinject executor is changed from tasklet to workqueue. Add add spin lock to protect the queue. This reduces the processing flow of the tcp_sendmsg function in this scenario. Fixes: acf568ee859f0 ("xfrm: Reinject transport-mode packets through tasklet") Signed-off-by: Liu Jian <liujian56(a)huawei.com> Signed-off-by: Steffen Klassert <steffen.klassert(a)secunet.com> Conflicts: net/xfrm/xfrm_input.c Signed-off-by: Liu Jian <liujian56(a)huawei.com> --- net/xfrm/xfrm_input.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c index 77e82033ad70..90af125aa770 100644 --- a/net/xfrm/xfrm_input.c +++ b/net/xfrm/xfrm_input.c @@ -24,7 +24,8 @@ #include "xfrm_inout.h" struct xfrm_trans_tasklet { - struct tasklet_struct tasklet; + struct work_struct work; + spinlock_t queue_lock; struct sk_buff_head queue; }; @@ -760,18 +761,22 @@ int xfrm_input_resume(struct sk_buff *skb, int nexthdr) } EXPORT_SYMBOL(xfrm_input_resume); -static void xfrm_trans_reinject(unsigned long data) +static void xfrm_trans_reinject(struct work_struct *work) { - struct xfrm_trans_tasklet *trans = (void *)data; + struct xfrm_trans_tasklet *trans = container_of(work, struct xfrm_trans_tasklet, work); struct sk_buff_head queue; struct sk_buff *skb; __skb_queue_head_init(&queue); + spin_lock_bh(&trans->queue_lock); skb_queue_splice_init(&trans->queue, &queue); + spin_unlock_bh(&trans->queue_lock); + local_bh_disable(); while ((skb = __skb_dequeue(&queue))) XFRM_TRANS_SKB_CB(skb)->finish(XFRM_TRANS_SKB_CB(skb)->net, NULL, skb); + local_bh_enable(); } int xfrm_trans_queue_net(struct net *net, struct sk_buff *skb, @@ -789,8 +794,10 @@ int xfrm_trans_queue_net(struct net *net, struct sk_buff *skb, XFRM_TRANS_SKB_CB(skb)->finish = finish; XFRM_TRANS_SKB_CB(skb)->net = net; + spin_lock_bh(&trans->queue_lock); __skb_queue_tail(&trans->queue, skb); - tasklet_schedule(&trans->tasklet); + spin_unlock_bh(&trans->queue_lock); + schedule_work(&trans->work); return 0; } EXPORT_SYMBOL(xfrm_trans_queue_net); @@ -817,8 +824,8 @@ void __init xfrm_input_init(void) struct xfrm_trans_tasklet *trans; trans = &per_cpu(xfrm_trans_tasklet, i); + spin_lock_init(&trans->queue_lock); __skb_queue_head_init(&trans->queue); - tasklet_init(&trans->tasklet, xfrm_trans_reinject, - (unsigned long)trans); + INIT_WORK(&trans->work, xfrm_trans_reinject); } } -- 2.34.1

1 0

[PATCH openEuler-1.0-LTS 1/2] of: overlay: fix for_each_child.cocci warnings
by Yongqiang Liu 08 Jun '23

08 Jun '23

From: kernel test robot <lkp(a)intel.com> mainline inclusion from mainline-v5.13-rc1 commit c4d74f0f978ed5ceee62cd3f6708081042e582a1 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I73DDA CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ------------------------------------------------ Function "for_each_child_of_node" should have of_node_put() before goto. Generated by: scripts/coccinelle/iterators/for_each_child.cocci Fixes: 82c2d81361ec ("coccinelle: iterators: Add for_each_child.cocci script") CC: Sumera Priyadarsini <sylphrenadin(a)gmail.com> Reported-by: kernel test robot <lkp(a)intel.com> Signed-off-by: kernel test robot <lkp(a)intel.com> Signed-off-by: Julia Lawall <julia.lawall(a)inria.fr> Reviewed-by: Frank Rowand <frank.rowand(a)sony.com> Tested-by: Frank Rowand <frank.rowand(a)sony.com> Link: https://lore.kernel.org/r/alpine.DEB.2.22.394.2103221918450.2918@hadrien Signed-off-by: Rob Herring <robh(a)kernel.org> Signed-off-by: Zhang Zekun <zhangzekun11(a)huawei.com> Reviewed-by: xuqiang <xuqiang36(a)huawei.com> Reviewed-by: Weilong Chen <chenweilong(a)huawei.com> Signed-off-by: Yongqiang Liu <liuyongqiang13(a)huawei.com> --- drivers/of/overlay.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c index a77bfeac867d..b0a765fcef2f 100644 --- a/drivers/of/overlay.c +++ b/drivers/of/overlay.c @@ -713,6 +713,7 @@ static int init_overlay_changeset(struct overlay_changeset *ovcs, if (!fragment->target) { of_node_put(fragment->overlay); ret = -EINVAL; + of_node_put(node); goto err_free_fragments; } -- 2.25.1

1 1

[PATCH openEuler-1.0-LTS 1/2] fs: hfsplus: fix UAF issue in hfsplus_put_super
by Yongqiang Liu 08 Jun '23

08 Jun '23

From: Dongliang Mu <mudongliangabcd(a)gmail.com> stable inclusion from stable-v4.19.273 commit e226f1fdcee1ca6e68233b132718deb578a84e38 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I79LIO CVE: CVE-2023-2985 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=… -------------------------------- commit 07db5e247ab5858439b14dd7cc1fe538b9efcf32 upstream. The current hfsplus_put_super first calls hfs_btree_close on sbi->ext_tree, then invokes iput on sbi->hidden_dir, resulting in an use-after-free issue in hfsplus_release_folio. As shown in hfsplus_fill_super, the error handling code also calls iput before hfs_btree_close. To fix this error, we move all iput calls before hfsplus_btree_close. Note that this patch is tested on Syzbot. Link: https://lkml.kernel.org/r/20230226124948.3175736-1-mudongliangabcd@gmail.com Reported-by: syzbot+57e3e98f7e3b80f64d56(a)syzkaller.appspotmail.com Tested-by: Dongliang Mu <mudongliangabcd(a)gmail.com> Signed-off-by: Dongliang Mu <mudongliangabcd(a)gmail.com> Cc: Bart Van Assche <bvanassche(a)acm.org> Cc: Jens Axboe <axboe(a)kernel.dk> Cc: Muchun Song <songmuchun(a)bytedance.com> Cc: Roman Gushchin <roman.gushchin(a)linux.dev> Cc: "Theodore Ts'o" <tytso(a)mit.edu> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Long Li <leo.lilong(a)huawei.com> Reviewed-by: Yang Erkun <yangerkun(a)huawei.com> Reviewed-by: Xiu Jianfeng <xiujianfeng(a)huawei.com> Signed-off-by: Yongqiang Liu <liuyongqiang13(a)huawei.com> --- fs/hfsplus/super.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c index eb4535eba95d..3b1356b10a47 100644 --- a/fs/hfsplus/super.c +++ b/fs/hfsplus/super.c @@ -294,11 +294,11 @@ static void hfsplus_put_super(struct super_block *sb) hfsplus_sync_fs(sb, 1); } + iput(sbi->alloc_file); + iput(sbi->hidden_dir); hfs_btree_close(sbi->attr_tree); hfs_btree_close(sbi->cat_tree); hfs_btree_close(sbi->ext_tree); - iput(sbi->alloc_file); - iput(sbi->hidden_dir); kfree(sbi->s_vhdr_buf); kfree(sbi->s_backup_vhdr_buf); unload_nls(sbi->nls); -- 2.25.1

1 1

[PATCH openEuler-22.03-LTS-SP2 00/35] xfs: fixes patchs and backport patchs
by Long Li 08 Jun '23

08 Jun '23

Allison Henderson (1): xfs: increase rename inode reservation ChenXiaoSong (1): xfs: fix NULL pointer dereference in xfs_getbmap() Darrick J. Wong (6): xfs: check return codes when flushing block devices xfs: fix maxlevels comparisons in the btree staging code xfs: shut down filesystem if we xfs_trans_cancel with deferred work items xfs: don't expose internal symlink metadata buffers to the vfs xfs: fix negative array access in xfs_getbmap iomap: iomap: fix memory corruption when recording errors during writeback Dave Chinner (13): xfs: remove xfs_blkdev_issue_flush xfs: AIL should be log centric xfs: shutdown in intent recovery has non-intent items in the AIL xfs: log shutdown triggers should only shut down the log xfs: xfs_do_force_shutdown needs to block racing shutdowns xfs: xfs_trans_commit() path must check for log shutdown xfs: shutdown during log recovery needs to mark the log shutdown xfs: remove XFS_PREALLOC_SYNC xfs: fallocate() should call file_modified() xfs: sb verifier doesn't handle uncached sb buffer xfs: write page faults in iomap are not buffered writes iomap: write iomap validity checks xfs: use iomap_valid method to detect stale cached iomaps Gao Xiang (1): xfs: account extra freespace btree splits for multiple allocations Guo Xuenan (3): Revert "[Huawei] xfs: fix uaf when leaf dir bestcount not match with dir data blocks" xfs: fix exception caused by unexpected illegal bestcount in leaf dir xfs: force shutdown xfs when xfs_attr_inactive fails Long Li (4): xfs: fix ag count overflow during growfs xfs: fix hung when transaction commit fail in xfs_inactive_ifree xfs: fix a UAF when inode item push xfs: fix a UAF in xfs_iflush_abort_clean Shida Zhang (1): xfs: trim the mapp array accordingly in xfs_da_grow_inode_int Wu Guanghao (1): xfs: fix the problem of mount failure caused by not refreshing mp->m_sb Ye Bin (2): xfs: fix BUG_ON in xfs_getbmap() xfs: fix dead loop when do mount with IO fault injection Zhang Yi (2): xfs: factor out __xfs_da3_node_read() xfs: atomic drop extent entries when inactiving attr fs/iomap/apply.c | 14 +++- fs/iomap/buffered-io.c | 29 ++++++++- fs/xfs/libxfs/xfs_alloc.c | 9 ++- fs/xfs/libxfs/xfs_alloc.h | 1 + fs/xfs/libxfs/xfs_bmap.c | 7 +- fs/xfs/libxfs/xfs_btree_staging.c | 4 +- fs/xfs/libxfs/xfs_da_btree.c | 7 +- fs/xfs/libxfs/xfs_da_btree.h | 15 ++++- fs/xfs/libxfs/xfs_dir2_leaf.c | 21 ++---- fs/xfs/libxfs/xfs_ialloc.c | 1 + fs/xfs/libxfs/xfs_sb.c | 2 +- fs/xfs/libxfs/xfs_trans_resv.c | 4 +- fs/xfs/xfs_aops.c | 2 +- fs/xfs/xfs_attr_inactive.c | 66 ++++++++++++++----- fs/xfs/xfs_bmap_util.c | 34 +++++----- fs/xfs/xfs_buf.c | 7 +- fs/xfs/xfs_buf.h | 7 +- fs/xfs/xfs_buf_item.c | 20 ++++++ fs/xfs/xfs_buf_item_recover.c | 24 +++++++ fs/xfs/xfs_file.c | 49 ++++++++------ fs/xfs/xfs_fsops.c | 9 ++- fs/xfs/xfs_inode.c | 5 +- fs/xfs/xfs_inode_item.c | 11 +++- fs/xfs/xfs_iomap.c | 105 ++++++++++++++++++++++++------ fs/xfs/xfs_iomap.h | 7 +- fs/xfs/xfs_iops.c | 34 +--------- fs/xfs/xfs_log.c | 68 +++++++++++++------ fs/xfs/xfs_log_cil.c | 4 +- fs/xfs/xfs_log_priv.h | 11 ++++ fs/xfs/xfs_log_recover.c | 56 ++++++---------- fs/xfs/xfs_mount.c | 1 + fs/xfs/xfs_pnfs.c | 12 ++-- fs/xfs/xfs_super.c | 7 -- fs/xfs/xfs_super.h | 1 - fs/xfs/xfs_symlink.c | 27 +++++--- fs/xfs/xfs_trans.c | 61 ++++++++++++----- fs/xfs/xfs_trans_ail.c | 30 ++++----- fs/xfs/xfs_trans_priv.h | 3 +- include/linux/iomap.h | 39 +++++++++-- 39 files changed, 549 insertions(+), 265 deletions(-) -- 2.31.1

2 36

[PATCH OLK-5.10 0/5] A set of patch for uploading openEuler
by Yihang Li 08 Jun '23

08 Jun '23

From: xiabing <xiabing12(a)h-partners.com> Arnd Bergmann (1): scsi: hisi_sas: Work around build failure in suspend function Qi Liu (1): scsi: hisi_sas: Add slave_destroy interface for v3 hw Xiang Chen (1): scsi: sd: try more retries of START_STOP when resuming scsi device Yihang Li (2): scsi: hisi_sas: Block requests before take debugfs snapshot scsi: hisi_sas: Check usage count only when the runtime PM status is RPM_SUSPENDING drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 31 +++++++++++++++++++++----- drivers/scsi/sd.c | 24 +++++++++++++++----- 2 files changed, 43 insertions(+), 12 deletions(-) -- 2.30.0

2 6

[PATCH openEuler-22.03-LTS 0/4] io_uring: fix the problem of
by Li Lingfeng 08 Jun '23

08 Jun '23

patch1: arch: setup PF_IO_WORKER threads like PF_KTHREAD pre patch of patch4 patch2: arch: ensure parisc/powerpc handle PF_IO_WORKER in copy_thread() fix patch of patch1 patch3: kernel: don't call do_exit() for PF_IO_WORKER threads fix the segfault patch4: x86/process: setup io_threads more like normal user space threads allow io worker to exit Jens Axboe (3): arch: setup PF_IO_WORKER threads like PF_KTHREAD arch: ensure parisc/powerpc handle PF_IO_WORKER in copy_thread() kernel: don't call do_exit() for PF_IO_WORKER threads Stefan Metzmacher (1): x86/process: setup io_threads more like normal user space threads arch/alpha/kernel/process.c | 2 +- arch/arc/kernel/process.c | 2 +- arch/arm/kernel/process.c | 2 +- arch/arm64/kernel/process.c | 2 +- arch/csky/kernel/process.c | 2 +- arch/h8300/kernel/process.c | 2 +- arch/hexagon/kernel/process.c | 2 +- arch/ia64/kernel/process.c | 2 +- arch/m68k/kernel/process.c | 2 +- arch/microblaze/kernel/process.c | 2 +- arch/mips/kernel/process.c | 2 +- arch/nds32/kernel/process.c | 2 +- arch/nios2/kernel/process.c | 2 +- arch/openrisc/kernel/process.c | 2 +- arch/parisc/kernel/process.c | 2 +- arch/powerpc/kernel/process.c | 2 +- arch/riscv/kernel/process.c | 2 +- arch/s390/kernel/process.c | 2 +- arch/sh/kernel/process_32.c | 2 +- arch/sparc/kernel/process_32.c | 2 +- arch/sparc/kernel/process_64.c | 2 +- arch/um/kernel/process.c | 2 +- arch/x86/kernel/process.c | 17 +++++++++++++++++ arch/xtensa/kernel/process.c | 2 +- kernel/signal.c | 10 +++++++++- 25 files changed, 49 insertions(+), 24 deletions(-) -- 2.31.1

2 5

[PATCH openEuler-22.03-LTS v2] nbd: get config_lock before sock_shutdown
by Zhong Jinghua 08 Jun '23

08 Jun '23

From: Zhong Jinghua <zhongjinghua(a)huaweicloud.com> Offering: HULK hulk inclusion category: bugfix bugzilla: 188799, https://gitee.com/openeuler/kernel/issues/I79QWO CVE: NA ---------------------------------------- Config->socks in sock_shutdown may trigger a UAF problem. The reason is that sock_shutdown does not hold the config_lock, so that nbd_ioctl can release config->socks at this time. T0: NBD_SET_SOCK T1: NBD_DO_IT T0 T1 nbd_ioctl mutex_lock(&nbd->config_lock) // get lock __nbd_ioctl nbd_start_device_ioctl nbd_start_device mutex_unlock(&nbd->config_lock) // relase lock wait_event_interruptible (kill, enter sock_shutdown) sock_shutdown nbd_ioctl mutex_lock(&nbd->config_lock) // get lock __nbd_ioctl nbd_add_socket krealloc kfree(p) //config->socks is NULL nbd_sock *nsock = config->socks // error Fix it by moving config_lock up before sock_shutdown. Signed-off-by: Zhong Jinghua <zhongjinghua(a)huawei.com> --- v2: adapt drivers/block/nbd.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index ebcdb6025be3..ba98fdaaa35a 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -1406,11 +1406,16 @@ static int nbd_start_device_ioctl(struct nbd_device *nbd, struct block_device *b mutex_unlock(&nbd->config_lock); ret = wait_event_interruptible(config->recv_wq, atomic_read(&config->recv_threads) == 0); + + /* + * recv_work in flush_workqueue will not get this lock, because nbd_open + * will hold nbd->config_refs + */ + mutex_lock(&nbd->config_lock); if (ret) sock_shutdown(nbd); flush_workqueue(nbd->recv_workq); - mutex_lock(&nbd->config_lock); nbd_bdev_reset(bdev); /* user requested, ignore socket errors */ if (test_bit(NBD_RT_DISCONNECT_REQUESTED, &config->runtime_flags)) -- 2.31.1

2 1

[PATCH v3 OLK-5.10 0/4] support ACPI for MPAM 2.0
by Yu Liao 08 Jun '23

08 Jun '23

This patch series support ACPI for MPAM 2.0. Erik Kaneda (1): ACPICA: ACPI 6.4: PPTT: add new version of subtable type 1 Hesham Almatary (1): ACPICA: Add support for Arm's MPAM ACPI table version 2 Yu Liao (2): ACPI / PPTT: Find PPTT processor node by cache id ACPI/MPAM: Adapt to Arm's MPAM ACPI table version 2 arch/arm64/kernel/mpam/mpam_device.c | 2 +- drivers/acpi/arm64/Makefile | 2 +- drivers/acpi/arm64/mpam.c | 19 ++- drivers/acpi/arm64/mpam_v2.c | 176 +++++++++++++++++++++++++++ drivers/acpi/pptt.c | 55 +++++++++ include/acpi/actbl2.h | 118 ++++++++++++++++++ include/linux/acpi.h | 5 + include/linux/arm_mpam.h | 2 +- 8 files changed, 373 insertions(+), 6 deletions(-) create mode 100644 drivers/acpi/arm64/mpam_v2.c -- 2.25.1

2 5

[PATCH OLK-5.10 v2] fs: hfsplus: fix UAF issue in hfsplus_put_super
by Long Li 08 Jun '23

08 Jun '23

From: Dongliang Mu <mudongliangabcd(a)gmail.com> stable inclusion from stable-v5.10.167 commit ef7d71d7bd57b8b7fe514e459927696c1c6d1047 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I79LIO CVE: CVE-2023-2985 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=… -------------------------------- commit 07db5e247ab5858439b14dd7cc1fe538b9efcf32 upstream. The current hfsplus_put_super first calls hfs_btree_close on sbi->ext_tree, then invokes iput on sbi->hidden_dir, resulting in an use-after-free issue in hfsplus_release_folio. As shown in hfsplus_fill_super, the error handling code also calls iput before hfs_btree_close. To fix this error, we move all iput calls before hfsplus_btree_close. Note that this patch is tested on Syzbot. Link: https://lkml.kernel.org/r/20230226124948.3175736-1-mudongliangabcd@gmail.com Reported-by: syzbot+57e3e98f7e3b80f64d56(a)syzkaller.appspotmail.com Tested-by: Dongliang Mu <mudongliangabcd(a)gmail.com> Signed-off-by: Dongliang Mu <mudongliangabcd(a)gmail.com> Cc: Bart Van Assche <bvanassche(a)acm.org> Cc: Jens Axboe <axboe(a)kernel.dk> Cc: Muchun Song <songmuchun(a)bytedance.com> Cc: Roman Gushchin <roman.gushchin(a)linux.dev> Cc: "Theodore Ts'o" <tytso(a)mit.edu> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Long Li <leo.lilong(a)huawei.com> Reviewed-by: Yang Erkun <yangerkun(a)huawei.com> Reviewed-by: Xiu Jianfeng <xiujianfeng(a)huawei.com> --- fs/hfsplus/super.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c index 807119ae5adf..7648f64a17a8 100644 --- a/fs/hfsplus/super.c +++ b/fs/hfsplus/super.c @@ -295,11 +295,11 @@ static void hfsplus_put_super(struct super_block *sb) hfsplus_sync_fs(sb, 1); } + iput(sbi->alloc_file); + iput(sbi->hidden_dir); hfs_btree_close(sbi->attr_tree); hfs_btree_close(sbi->cat_tree); hfs_btree_close(sbi->ext_tree); - iput(sbi->alloc_file); - iput(sbi->hidden_dir); kfree(sbi->s_vhdr_buf); kfree(sbi->s_backup_vhdr_buf); unload_nls(sbi->nls); -- 2.31.1

2 1

[PATCH openEuler-1.0-LTS v8 0/2] smart grid scheduler
by Wang ShaoBo 08 Jun '23

08 Jun '23

v8: 处理了下格式问题，调度部分小有修改。 v7: 修复了commit message拼词错误和补丁格式问题。 v6: 自动模式下逃逸改为禁止，当前环境测试，功能OK，收益OK，直接使用根分组收益较小建议新建分组,建议使用mask屏蔽level0。 v5: 调度部分已完成评审完成代码修改，逃逸部分仍然使用pelt. 内存策略调整模块已经按照review已将进行修改. v4: fix KABI add 'cpu.affinity_domain_mask' add some statistics v3: 修改了patchwork错误，但是KABI还有个问题待解决。 v2: formal version 1. Hui Tang (1): sched: Introduce smart grid scheduling strategy for cfs Wang ShaoBo (1): sched: smart grid: init sched_grid_qos structure on QOS purpose fs/proc/array.c | 13 + include/linux/sched.h | 18 ++ include/linux/sched/grid_qos.h | 92 +++++++ include/linux/sched/sysctl.h | 4 + init/Kconfig | 13 + kernel/fork.c | 9 + kernel/sched/Makefile | 1 + kernel/sched/core.c | 147 +++++++++++ kernel/sched/fair.c | 437 ++++++++++++++++++++++++++++++++- kernel/sched/grid/Makefile | 2 + kernel/sched/grid/internal.h | 6 + kernel/sched/grid/power.c | 27 ++ kernel/sched/grid/qos.c | 143 +++++++++++ kernel/sched/grid/stat.c | 32 +++ kernel/sched/sched.h | 50 ++++ kernel/sysctl.c | 9 + mm/mempolicy.c | 12 +- 17 files changed, 1012 insertions(+), 3 deletions(-) create mode 100644 include/linux/sched/grid_qos.h create mode 100644 kernel/sched/grid/Makefile create mode 100644 kernel/sched/grid/internal.h create mode 100644 kernel/sched/grid/power.c create mode 100644 kernel/sched/grid/qos.c create mode 100644 kernel/sched/grid/stat.c -- 2.25.1

2 3

[PATCH OLK-5.10 0/2] bugfix the lost interruption problem after live migration
by liulongfang 08 Jun '23

08 Jun '23

From: JiangShui Yang <yangjiangshui(a)h-partners.com> The problem of service interruption and loss may be triggered during live migration. In order to ensure normal business, it is necessary to resend an interrupt in the live migration driver. And in the QM service driver, it is guaranteed that the retransmission interrupt can be received normally. Longfang Liu (2): crypto: hisilicon/qm - fix EQ/AEQ interrupt issue vfio/migration: bugfix lost interruption after live migration .../hisilicon/migration/acc_vf_migration.c | 66 +++++++---- .../hisilicon/migration/acc_vf_migration.h | 2 + drivers/crypto/hisilicon/qm.c | 107 +++++++----------- include/linux/hisi_acc_qm.h | 1 + 4 files changed, 86 insertions(+), 90 deletions(-) -- 2.30.0

1 2

[PATCH OLK-5.10 v2] drivers/perf: hisi: Don't migrate perf to the CPU going to teardown
by Junhao He 08 Jun '23

08 Jun '23

driver inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I7BUN2 CVE: NA ---------------------------------------------------------------------- The driver needs to migrate the perf context if the current using CPU going to teardown. By the time calling the cpuhp::teardown() callback the cpu_online_mask() hasn't updated yet and still includes the CPU going to teardown. In current driver's implementation we may migrate the context to the teardown CPU and leads to the below calltrace: ... [ 368.104662][ T932] task:cpuhp/0 state:D stack: 0 pid: 15 ppid: 2 flags:0x00000008 [ 368.113699][ T932] Call trace: [ 368.116834][ T932] __switch_to+0x7c/0xbc [ 368.120924][ T932] __schedule+0x338/0x6f0 [ 368.125098][ T932] schedule+0x50/0xe0 [ 368.128926][ T932] schedule_preempt_disabled+0x18/0x24 [ 368.134229][ T932] __mutex_lock.constprop.0+0x1d4/0x5dc [ 368.139617][ T932] __mutex_lock_slowpath+0x1c/0x30 [ 368.144573][ T932] mutex_lock+0x50/0x60 [ 368.148579][ T932] perf_pmu_migrate_context+0x84/0x2b0 [ 368.153884][ T932] hisi_pcie_pmu_offline_cpu+0x90/0xe0 [hisi_pcie_pmu] [ 368.160579][ T932] cpuhp_invoke_callback+0x2a0/0x650 [ 368.165707][ T932] cpuhp_thread_fun+0xe4/0x190 [ 368.170316][ T932] smpboot_thread_fn+0x15c/0x1a0 [ 368.175099][ T932] kthread+0x108/0x13c [ 368.179012][ T932] ret_from_fork+0x10/0x18 ... Use function cpumask_any_but() to find one correct active cpu to fixes this issue. Fixes: 8404b0fbc7fb ("drivers/perf: hisi: Add driver for HiSilicon PCIe PMU") Signed-off-by: Junhao He <hejunhao3(a)huawei.com> --- drivers/perf/hisilicon/hisi_pcie_pmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/perf/hisilicon/hisi_pcie_pmu.c b/drivers/perf/hisilicon/hisi_pcie_pmu.c index 88d488765203..8f59387aeab0 100644 --- a/drivers/perf/hisilicon/hisi_pcie_pmu.c +++ b/drivers/perf/hisilicon/hisi_pcie_pmu.c @@ -689,7 +689,7 @@ static int hisi_pcie_pmu_offline_cpu(unsigned int cpu, struct hlist_node *node) pcie_pmu->on_cpu = -1; /* Choose a new CPU from all online cpus. */ - target = cpumask_first(cpu_online_mask); + target = cpumask_any_but(cpu_online_mask, cpu); if (target >= nr_cpu_ids) { pci_err(pcie_pmu->pdev, "There is no CPU to set\n"); return 0; -- 2.33.0

1 0

[PATCH openEuler-22.03-LTS-SP2] drivers/perf: hisi: Don't migrate perf to the CPU going to teardown
by Junhao He 08 Jun '23

08 Jun '23

driver inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I7BUN2 CVE: NA ---------------------------------------------------------------------- The driver needs to migrate the perf context if the current using CPU going to teardown. By the time calling the cpuhp::teardown() callback the cpu_online_mask() hasn't updated yet and still includes the CPU going to teardown. In current driver's implementation we may migrate the context to the teardown CPU and leads to the below calltrace: ... [ 368.104662][ T932] task:cpuhp/0 state:D stack: 0 pid: 15 ppid: 2 flags:0x00000008 [ 368.113699][ T932] Call trace: [ 368.116834][ T932] __switch_to+0x7c/0xbc [ 368.120924][ T932] __schedule+0x338/0x6f0 [ 368.125098][ T932] schedule+0x50/0xe0 [ 368.128926][ T932] schedule_preempt_disabled+0x18/0x24 [ 368.134229][ T932] __mutex_lock.constprop.0+0x1d4/0x5dc [ 368.139617][ T932] __mutex_lock_slowpath+0x1c/0x30 [ 368.144573][ T932] mutex_lock+0x50/0x60 [ 368.148579][ T932] perf_pmu_migrate_context+0x84/0x2b0 [ 368.153884][ T932] hisi_pcie_pmu_offline_cpu+0x90/0xe0 [hisi_pcie_pmu] [ 368.160579][ T932] cpuhp_invoke_callback+0x2a0/0x650 [ 368.165707][ T932] cpuhp_thread_fun+0xe4/0x190 [ 368.170316][ T932] smpboot_thread_fn+0x15c/0x1a0 [ 368.175099][ T932] kthread+0x108/0x13c [ 368.179012][ T932] ret_from_fork+0x10/0x18 ... Use function cpumask_any_but() to find one correct active cpu to fixes this issue. Fixes: 8404b0fbc7fb ("drivers/perf: hisi: Add driver for HiSilicon PCIe PMU") Signed-off-by: Junhao He <hejunhao3(a)huawei.com> --- drivers/perf/hisilicon/hisi_pcie_pmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/perf/hisilicon/hisi_pcie_pmu.c b/drivers/perf/hisilicon/hisi_pcie_pmu.c index 88d488765203..8f59387aeab0 100644 --- a/drivers/perf/hisilicon/hisi_pcie_pmu.c +++ b/drivers/perf/hisilicon/hisi_pcie_pmu.c @@ -689,7 +689,7 @@ static int hisi_pcie_pmu_offline_cpu(unsigned int cpu, struct hlist_node *node) pcie_pmu->on_cpu = -1; /* Choose a new CPU from all online cpus. */ - target = cpumask_first(cpu_online_mask); + target = cpumask_any_but(cpu_online_mask, cpu); if (target >= nr_cpu_ids) { pci_err(pcie_pmu->pdev, "There is no CPU to set\n"); return 0; -- 2.33.0

1 0

[PATCH OLK-5.10] roh: Fix ROH multi-BD cmdq issue
by Ke Chen 08 Jun '23

08 Jun '23

driver inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I77OGM --------------------------------------------------------------- When the ROH CMDQ processes multiple BDs, the operations are inconsistent with those in the UM manual. As a result, the CMDQ parses unexpected return values, interrupts the CMDQ processing process, and the ROH MIB statistics query may fail. This patch fix the process method of roh cmdq multiple BDs. Signed-off-by: Ke Chen <chenke54(a)huawei.com> Reviewed-by: Gang Zhang <gang.zhang(a)huawei.com> --- drivers/roh/core/core.c | 35 +----- drivers/roh/core/core.h | 22 +--- drivers/roh/core/core_priv.h | 3 +- drivers/roh/core/sysfs.c | 180 ++++++++++++++++++++----------- drivers/roh/hw/hns3/hns3_cmdq.c | 131 +++++++++++++++------- drivers/roh/hw/hns3/hns3_cmdq.h | 32 +++--- drivers/roh/hw/hns3/hns3_main.c | 10 +- drivers/roh/hw/hns3/hns3_verbs.c | 22 +--- drivers/roh/hw/hns3/hns3_verbs.h | 1 - 9 files changed, 237 insertions(+), 199 deletions(-) diff --git a/drivers/roh/core/core.c b/drivers/roh/core/core.c index 5d27fcbfd..1b8041004 100644 --- a/drivers/roh/core/core.c +++ b/drivers/roh/core/core.c @@ -2,10 +2,10 @@ // Copyright (c) 2022 Hisilicon Limited. #include <linux/pci.h> -#include <net/rtnetlink.h> +#include <linux/inetdevice.h> -#include "core.h" #include "core_priv.h" +#include "core.h" static DEFINE_XARRAY_FLAGS(devices, XA_FLAGS_ALLOC); static DECLARE_RWSEM(devices_rwsem); @@ -193,20 +193,6 @@ static int assign_name(struct roh_device *device) return ret; } -static int setup_device(struct roh_device *device) -{ - int ret; - - /* Query GUID */ - ret = device->ops.query_guid(device, &device->node_guid); - if (ret) { - pr_err("failed to query guid, ret = %d\n", ret); - return ret; - } - - return 0; -} - static void disable_device(struct roh_device *device) { u32 cid; @@ -264,10 +250,8 @@ static int roh_ipv4_event(struct notifier_block *this, unsigned long event, void device = container_of(this, struct roh_device, nb); ndev = ifa->ifa_dev->dev; - if (device->netdev != ndev) { - pr_warn("netdev mismatch.\n"); + if (device->netdev != ndev || event != NETDEV_UP) return NOTIFY_DONE; - } in.sin_addr.s_addr = ifa->ifa_address; @@ -318,12 +302,6 @@ int roh_register_device(struct roh_device *device) return ret; } - ret = setup_device(device); - if (ret) { - pr_err("roh_core: failed to setup device, ret = %d\n", ret); - return ret; - } - dev_set_uevent_suppress(&device->dev, true); ret = device_add(&device->dev); if (ret) { @@ -559,7 +537,7 @@ static int roh_set_pf_mac_by_eid(struct roh_device *device, u32 eid = eid_attr->base; struct net_device *ndev; struct sockaddr s_addr; - u8 mac[ETH_ALEN]; + u8 mac[ETH_ALEN] = {0}; int ret; ndev = device->netdev; @@ -628,11 +606,6 @@ void roh_device_get_eid(struct roh_device *device, struct roh_eid_attr *attr) mutex_unlock(&device->eid_mutex); } -void roh_device_query_guid(struct roh_device *device, struct roh_guid_attr *attr) -{ - memcpy(attr, &device->node_guid, sizeof(*attr)); -} - enum roh_link_status roh_device_query_link_status(struct roh_device *device) { return device->link_status; diff --git a/drivers/roh/core/core.h b/drivers/roh/core/core.h index fd37192eb..11c8a4578 100644 --- a/drivers/roh/core/core.h +++ b/drivers/roh/core/core.h @@ -7,7 +7,7 @@ #include <linux/types.h> #include <linux/workqueue.h> #include <linux/netdevice.h> -#include <net/bonding.h> +#include <linux/etherdevice.h> #define ROH_DEVICE_NAME_MAX 64 #define MAX_DEVICE_REFCOUNT 2 @@ -23,14 +23,9 @@ enum roh_link_status { ROH_LINK_DOWN = 0, ROH_LINK_UP }; enum roh_mib_type { ROH_MIB_PUBLIC = 0, ROH_MIB_PRIVATE }; -static inline void convert_eid_to_mac(u8 mac[6], u32 eid) +static inline void convert_eid_to_mac(u8 *mac, u32 eid) { - mac[0] = 0; - mac[1] = 0; - mac[2] = 0; - mac[3] = (eid >> 16) & 0xff; - mac[4] = (eid >> 8) & 0xff; - mac[5] = eid & 0xff; + u64_to_ether_addr((u64)eid, mac); } struct roh_eid_attr { @@ -38,10 +33,6 @@ struct roh_eid_attr { u32 num; }; -struct roh_guid_attr { - u8 data[16]; -}; - struct roh_mib_stats { struct mutex lock; /* Protect values[] */ const char * const *names; @@ -51,13 +42,7 @@ struct roh_mib_stats { struct roh_device; struct roh_device_ops { - int (*query_guid)(struct roh_device *device, struct roh_guid_attr *attr); int (*set_eid)(struct roh_device *device, struct roh_eid_attr *attr); - struct sk_buff *(*pkt_create)(struct net_device *ndev, - u8 *dest_mac, u8 *src_mac, int ptype, - struct roh_guid_attr *guid, u16 eid_nums); - int (*pkt_parse)(struct sk_buff *skb, struct roh_eid_attr *eid_attr, int ptype); - enum roh_dev_tx (*xmit_pkt)(struct roh_device *device, struct sk_buff *skb); struct roh_mib_stats *(*alloc_hw_stats)(struct roh_device *device, enum roh_mib_type); int (*get_hw_stats)(struct roh_device *device, struct roh_mib_stats *stats, enum roh_mib_type); @@ -85,7 +70,6 @@ struct roh_device { struct completion unreg_completion; struct mutex unregistration_lock; /* lock for unregiste */ - struct roh_guid_attr node_guid; struct roh_eid_attr eid; struct mutex eid_mutex; /* operate eid needs to be mutexed */ u32 link_status; diff --git a/drivers/roh/core/core_priv.h b/drivers/roh/core/core_priv.h index b8337636f..56f581820 100644 --- a/drivers/roh/core/core_priv.h +++ b/drivers/roh/core/core_priv.h @@ -4,6 +4,8 @@ #ifndef __CORE_PRIV_H__ #define __CORE_PRIV_H__ +#include "core.h" + struct roh_client { char *name; int (*add)(struct roh_device *device); @@ -24,7 +26,6 @@ void roh_device_unregister_sysfs(struct roh_device *device); int roh_device_set_eid(struct roh_device *device, struct roh_eid_attr *attr); void roh_device_get_eid(struct roh_device *device, struct roh_eid_attr *attr); -void roh_device_query_guid(struct roh_device *device, struct roh_guid_attr *attr); enum roh_link_status roh_device_query_link_status(struct roh_device *device); #endif /* __CORE_PRIV_H__ */ diff --git a/drivers/roh/core/sysfs.c b/drivers/roh/core/sysfs.c index a502b9f4f..a65185861 100644 --- a/drivers/roh/core/sysfs.c +++ b/drivers/roh/core/sysfs.c @@ -1,9 +1,9 @@ // SPDX-License-Identifier: GPL-2.0+ // Copyright (c) 2020-2022 Hisilicon Limited. +#include <net/sock.h> #include <linux/sysfs.h> #include <linux/stat.h> -#include <net/sock.h> #include "core.h" #include "core_priv.h" @@ -21,18 +21,6 @@ static ssize_t node_eid_show(struct device *device, return sprintf(buf, "base:%u num:%u\n", eid.base, eid.num); } -static ssize_t node_guid_show(struct device *device, - struct device_attribute *attr, char *buf) -{ - struct roh_device *dev = container_of(device, struct roh_device, dev); - struct roh_guid_attr guid; - u32 *val = (u32 *)guid.data; - - roh_device_query_guid(dev, &guid); - - return sprintf(buf, "%08x:%08x:%08x:%08x\n", val[0], val[1], val[2], val[3]); -} - static ssize_t node_link_status_show(struct device *device, struct device_attribute *attr, char *buf) { @@ -44,12 +32,10 @@ static ssize_t node_link_status_show(struct device *device, } static DEVICE_ATTR_RO(node_eid); -static DEVICE_ATTR_RO(node_guid); static DEVICE_ATTR_RO(node_link_status); static struct device_attribute *roh_class_attr[] = { &dev_attr_node_eid, - &dev_attr_node_guid, &dev_attr_node_link_status, }; @@ -71,7 +57,7 @@ static void remove_device_sysfs(struct roh_device *device) device_remove_file(&device->dev, roh_class_attr[i]); } -static const char * const roh_hw_stats_name[ROH_MIB_STATS_TYPE_NUM] = { +static const char * const g_roh_hw_stats_name[ROH_MIB_STATS_TYPE_NUM] = { "mib_public", "mib_private", }; @@ -91,18 +77,19 @@ static ssize_t print_hw_stat(struct roh_device *dev, static ssize_t node_public_mib_stats_show(struct kobject *kobj, struct attribute *attr, char *buf) { - struct roh_hw_stats_attribute *hsa; struct roh_mib_stats *public_stats; struct roh_device *dev; int ret; - hsa = container_of(attr, struct roh_hw_stats_attribute, attr); dev = container_of(kobj, struct roh_device, dev.kobj); public_stats = dev->hw_public_stats; mutex_lock(&public_stats->lock); ret = dev->ops.get_hw_stats(dev, public_stats, ROH_MIB_PUBLIC); - if (ret) + if (ret) { + dev_err(&dev->dev, + "failed to get roh public hw stats, ret = %d.\n", ret); goto unlock; + } ret = print_hw_stat(dev, public_stats, buf); @@ -115,17 +102,18 @@ static ssize_t node_private_mib_stats_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct roh_mib_stats *private_stats; - struct roh_hw_stats_attribute *hsa; struct roh_device *dev; int ret; - hsa = container_of(attr, struct roh_hw_stats_attribute, attr); dev = container_of(kobj, struct roh_device, dev.kobj); private_stats = dev->hw_private_stats; mutex_lock(&private_stats->lock); ret = dev->ops.get_hw_stats(dev, private_stats, ROH_MIB_PRIVATE); - if (ret) + if (ret) { + dev_err(&dev->dev, + "failed to get roh private hw stats, ret = %d.\n", ret); goto unlock; + } ret = print_hw_stat(dev, private_stats, buf); @@ -134,7 +122,7 @@ static ssize_t node_private_mib_stats_show(struct kobject *kobj, return ret; } -static ssize_t (*show_roh_mib_hw_stats[ROH_MIB_STATS_TYPE_NUM]) +static ssize_t (*g_show_roh_mib_hw_stats[ROH_MIB_STATS_TYPE_NUM]) (struct kobject *, struct attribute *, char *) = { node_public_mib_stats_show, node_private_mib_stats_show @@ -168,70 +156,129 @@ static struct attribute *alloc_hsa(const char *name, return &hsa->attr; } -static void setup_mib_stats(struct roh_device *device) +static void free_hw_stats(struct roh_device *device) +{ + kfree(device->hw_private_stats); + kfree(device->hw_public_stats); +} + +static int alloc_and_get_hw_stats(struct roh_device *device) { struct roh_mib_stats *privite_stats, *public_stats; - struct attribute_group *hsag; - struct kobject *kobj; - int i, j; int ret; public_stats = device->ops.alloc_hw_stats(device, ROH_MIB_PUBLIC); - if (!public_stats) - return; + if (!public_stats) { + dev_err(&device->dev, "failed to alloc roh public hw stats.\n"); + return -ENOMEM; + } privite_stats = device->ops.alloc_hw_stats(device, ROH_MIB_PRIVATE); if (!privite_stats) { + dev_err(&device->dev, "failed to alloc roh privite hw stats.\n"); kfree(public_stats); - return; + return -ENOMEM; } - hsag = kzalloc(sizeof(*hsag) + - sizeof(void *) * (ARRAY_SIZE(roh_hw_stats_name)), - GFP_KERNEL); - if (!hsag) - goto err_free_stats; - ret = device->ops.get_hw_stats(device, public_stats, ROH_MIB_PUBLIC); - if (ret) - goto err_free_hsag; + if (ret) { + dev_err(&device->dev, + "failed to get roh public mib stats, ret = %d\n", ret); + goto err; + } ret = device->ops.get_hw_stats(device, privite_stats, ROH_MIB_PRIVATE); - if (ret) - goto err_free_hsag; + if (ret) { + dev_err(&device->dev, + "failed to get roh privite mib stats, ret = %d\n", ret); + goto err; + } + + mutex_init(&privite_stats->lock); + mutex_init(&public_stats->lock); + + device->hw_public_stats = public_stats; + device->hw_private_stats = privite_stats; + + return 0; + +err: + free_hw_stats(device); + + return ret; +} + +static int alloc_hsag(struct roh_device *device) +{ + struct attribute_group *hsag; + struct kobject *kobj; + int i, j; + int ret; + + /* + * one extra attribue elements here, terminate the + * list for the sysfs core code + */ + hsag = kzalloc(sizeof(*hsag) + + sizeof(void *) * (ARRAY_SIZE(g_roh_hw_stats_name) + 1), + GFP_KERNEL); + if (!hsag) { + dev_err(&device->dev, "failed to kzalloc hsag.\n"); + return -ENOMEM; + } hsag->name = "node_mib_stats"; hsag->attrs = (void *)hsag + sizeof(*hsag); - for (i = 0; i < ARRAY_SIZE(roh_hw_stats_name); i++) { - hsag->attrs[i] = alloc_hsa(roh_hw_stats_name[i], - show_roh_mib_hw_stats[i]); - if (!hsag->attrs[i]) + for (i = 0; i < ARRAY_SIZE(g_roh_hw_stats_name); i++) { + hsag->attrs[i] = alloc_hsa(g_roh_hw_stats_name[i], + g_show_roh_mib_hw_stats[i]); + if (!hsag->attrs[i]) { + ret = -ENOMEM; + dev_err(&device->dev, + "failed to alloc hsa for hsag attrs[%d].\n", i); goto err; + } sysfs_attr_init(hsag->attrs[i]); } - mutex_init(&privite_stats->lock); - mutex_init(&public_stats->lock); - kobj = &device->dev.kobj; ret = sysfs_create_group(kobj, hsag); - if (ret) + if (ret) { + dev_err(&device->dev, + "failed to create roh sysfs group, ret = %d\n", ret); goto err; - device->hw_stats_ag = hsag; - device->hw_public_stats = public_stats; - device->hw_private_stats = privite_stats; + } - return; + device->hw_stats_ag = hsag; + return 0; err: for (j = i - 1; j >= 0; j--) kfree(hsag->attrs[j]); -err_free_hsag: - kfree(hsag); -err_free_stats: - kfree(public_stats); - kfree(privite_stats); + return ret; +} + +static int setup_mib_stats(struct roh_device *device) +{ + int ret; + + ret = alloc_and_get_hw_stats(device); + if (ret) { + dev_err(&device->dev, + "failed to alloc and get roh hw stats, ret = %d.\n", ret); + return ret; + } + + ret = alloc_hsag(device); + if (ret) { + dev_err(&device->dev, + "failed to alloc hsag, ret = %d.\n", ret); + free_hw_stats(device); + return ret; + } + + return 0; } int roh_device_register_sysfs(struct roh_device *device) @@ -242,17 +289,23 @@ int roh_device_register_sysfs(struct roh_device *device) for (i = 0; i < ARRAY_SIZE(roh_class_attr); i++) { ret = device_create_file(&device->dev, roh_class_attr[i]); if (ret) { - pr_err("failed to create node %s, ret = %d.\n", - roh_class_attr[i]->attr.name, ret); + dev_err(&device->dev, + "failed to create node %s, ret = %d.\n", + roh_class_attr[i]->attr.name, ret); goto err; } } - if (device->ops.alloc_hw_stats) - setup_mib_stats(device); + if (device->ops.alloc_hw_stats) { + ret = setup_mib_stats(device); + if (ret) { + dev_err(&device->dev, + "failed to setup roh mib stats, ret = %d.\n", ret); + goto err; + } + } return 0; - err: remove_device_sysfs(device); return ret; @@ -263,8 +316,7 @@ void roh_device_unregister_sysfs(struct roh_device *device) if (device->hw_stats_ag) free_hsag(&device->dev.kobj, device->hw_stats_ag); - kfree(device->hw_private_stats); - kfree(device->hw_public_stats); + free_hw_stats(device); remove_device_sysfs(device); } diff --git a/drivers/roh/hw/hns3/hns3_cmdq.c b/drivers/roh/hw/hns3/hns3_cmdq.c index fccb0c482..75fa2e852 100644 --- a/drivers/roh/hw/hns3/hns3_cmdq.c +++ b/drivers/roh/hw/hns3/hns3_cmdq.c @@ -10,8 +10,8 @@ #include "core.h" #include "hns3_device.h" #include "hns3_common.h" -#include "hns3_cmdq.h" #include "hns3_reg.h" +#include "hns3_cmdq.h" static int hns3_roh_alloc_cmdq_desc(struct hns3_roh_device *hroh_dev, struct hns3_roh_cmdq_ring *ring) @@ -224,6 +224,11 @@ static int hns3_roh_cmdq_build(struct hns3_roh_device *hroh_dev, int handle = 0; if (num > hns3_roh_cmdq_space(csq)) { + /* If CMDQ ring is full, SW HEAD and HW HEAD may be different, + * need update the SW HEAD pointer csq->next_to_clean + */ + csq->next_to_clean = + hns3_roh_read(hroh_dev, HNS3_ROH_TX_CMDQ_HEAD_REG); dev_err(hroh_dev->dev, "cmdq is full, opcode %x\n", desc->opcode); return -EBUSY; } @@ -241,49 +246,96 @@ static int hns3_roh_cmdq_build(struct hns3_roh_device *hroh_dev, return 0; } -static int hns3_roh_cmdq_done_parse(struct hns3_roh_device *hroh_dev, - struct hns3_roh_desc *desc, - int num, int ntc) +static void hns3_roh_cmd_wait_for_resp(struct hns3_roh_device *hroh_dev, + bool *is_completed) { struct hns3_roh_priv *priv = (struct hns3_roh_priv *)hroh_dev->priv; - struct hns3_roh_cmdq_ring *csq = &priv->cmdq.csq; - struct hns3_roh_desc *desc_to_use = NULL; - int handle = 0; - u16 desc_ret; - int ret; + u32 timeout = 0; - if (hns3_roh_cmdq_csq_done(hroh_dev)) { - while (handle < num) { - desc_to_use = &csq->desc[ntc]; - desc[handle] = *desc_to_use; - desc_ret = le16_to_cpu(desc[handle].retval); - if (desc_ret == HNS3_ROH_CMD_EXEC_SUCCESS) { - ret = 0; - } else if (desc_ret == HNS3_ROH_CMD_EXEC_TIMEOUT) { - priv->cmdq.last_status = desc_ret; - ret = -ETIME; - } else { - pr_err("desc_ret = %d\n", desc_ret); - ret = -EIO; - } - - ntc++; - handle++; - if (ntc == csq->desc_num) - ntc = 0; + do { + if (hns3_roh_cmdq_csq_done(hroh_dev)) { + *is_completed = true; + break; } - } else { - ret = -EAGAIN; + udelay(1); + timeout++; + } while (timeout < priv->cmdq.tx_timeout); +} + +static const u16 spec_opcode[] = { HNS3_ROH_OPC_QUERY_MIB_PUBLIC, + HNS3_ROH_OPC_QUERY_MIB_PRIVATE }; + +static bool hns_roh_is_special_opcode(u16 opcode) +{ + /* these commands have several descriptors, + * and use the first one to save opcode and return value + */ + u32 i; + + for (i = 0; i < ARRAY_SIZE(spec_opcode); i++) + if (spec_opcode[i] == opcode) + return true; + + return false; +} + +static int hns3_roh_cmd_convert_err_code(u16 desc_ret) +{ + struct hns3_roh_errcode hns3_roh_cmd_errcode[] = { + { HNS3_ROH_CMD_EXEC_SUCCESS, 0 }, + { HNS3_ROH_CMD_NO_AUTH, -EPERM }, + { HNS3_ROH_CMD_NOT_SUPPORTED, -EOPNOTSUPP }, + { HNS3_ROH_CMD_QUEUE_FULL, -EXFULL }, + { HNS3_ROH_CMD_NEXT_ERR, -ENOSR }, + { HNS3_ROH_CMD_UNEXE_ERR, -ENOTBLK }, + { HNS3_ROH_CMD_PARA_ERR, -EINVAL }, + { HNS3_ROH_CMD_RESULT_ERR, -ERANGE }, + { HNS3_ROH_CMD_TIMEOUT, -ETIME }, + { HNS3_ROH_CMD_HILINK_ERR, -ENOLINK }, + { HNS3_ROH_CMD_QUEUE_ILLEGAL, -ENXIO }, + { HNS3_ROH_CMD_INVALID, -EBADR }, + }; + u32 errcode_count = ARRAY_SIZE(hns3_roh_cmd_errcode); + u32 i; + + for (i = 0; i < errcode_count; i++) + if (hns3_roh_cmd_errcode[i].imp_errcode == desc_ret) + return hns3_roh_cmd_errcode[i].common_errno; + + return -EIO; +} + +static int hns3_roh_cmd_check_retval(struct hns3_roh_device *hroh_dev, + struct hns3_roh_desc *desc, int num, + int next_to_clean) +{ + struct hns3_roh_priv *priv = (struct hns3_roh_priv *)hroh_dev->priv; + int ntc = next_to_clean; + u16 opcode, desc_ret; + int handle; + + opcode = le16_to_cpu(desc[0].opcode); + for (handle = 0; handle < num; handle++) { + desc[handle] = priv->cmdq.csq.desc[ntc]; + ntc++; + if (ntc >= priv->cmdq.csq.desc_num) + ntc = 0; } + if (likely(!hns_roh_is_special_opcode(opcode))) + desc_ret = le16_to_cpu(desc[num - 1].retval); + else + desc_ret = le16_to_cpu(desc[0].retval); - return ret; + priv->cmdq.last_status = desc_ret; + + return hns3_roh_cmd_convert_err_code(desc_ret); } int hns3_roh_cmdq_send(struct hns3_roh_device *hroh_dev, struct hns3_roh_desc *desc, int num) { struct hns3_roh_priv *priv = (struct hns3_roh_priv *)hroh_dev->priv; struct hns3_roh_cmdq_ring *csq = &priv->cmdq.csq; - u32 timeout = 0; + bool is_completed = false; int handle = 0; int ntc = 0; int ret = 0; @@ -298,16 +350,13 @@ int hns3_roh_cmdq_send(struct hns3_roh_device *hroh_dev, struct hns3_roh_desc *d /* Write to hardware */ hns3_roh_write(hroh_dev, HNS3_ROH_TX_CMDQ_TAIL_REG, csq->next_to_use); - if (desc->flag & cpu_to_le16(HNS3_ROH_CMD_FLAG_NO_INTR)) { - do { - if (hns3_roh_cmdq_csq_done(hroh_dev)) - break; - udelay(1); - timeout++; - } while (timeout < priv->cmdq.tx_timeout); - } + if (le16_to_cpu(desc->flag) & HNS3_ROH_CMD_FLAG_NO_INTR) + hns3_roh_cmd_wait_for_resp(hroh_dev, &is_completed); - ret = hns3_roh_cmdq_done_parse(hroh_dev, desc, num, ntc); + if (!is_completed) + ret = -EBADE; + else + ret = hns3_roh_cmd_check_retval(hroh_dev, desc, num, ntc); handle = hns3_roh_cmdq_csq_clean(hroh_dev); if (handle != num) diff --git a/drivers/roh/hw/hns3/hns3_cmdq.h b/drivers/roh/hw/hns3/hns3_cmdq.h index 0176c93d0..224fe1d30 100644 --- a/drivers/roh/hw/hns3/hns3_cmdq.h +++ b/drivers/roh/hw/hns3/hns3_cmdq.h @@ -28,21 +28,28 @@ enum hns3_roh_opcode_type { HNS3_ROH_OPC_GET_INTR_INFO = 0x0023, HNS3_ROH_OPC_QUERY_PORT_LINK_STATUS = 0x038a, HNS3_ROH_OPC_SET_EID = 0x9001, - HNS3_ROH_OPC_GET_GUID = 0x9002, HNS3_ROH_OPC_QUERY_MIB_PUBLIC = 0x9005, HNS3_ROH_OPC_QUERY_MIB_PRIVATE = 0x9006, }; +struct hns3_roh_errcode { + u32 imp_errcode; + int common_errno; +}; + enum hns3_roh_cmd_return_status { - HNS3_ROH_CMD_EXEC_SUCCESS = 0, - HNS3_ROH_CMD_NO_AUTH, - HNS3_ROH_CMD_NOT_EXIST, - HNS3_ROH_CMD_QUEUE_FULL, - HNS3_ROH_CMD_NEXT_ERR, - HNS3_ROH_CMD_NOT_EXEC, - HNS3_ROH_CMD_PARA_ERR, - HNS3_ROH_CMD_RESULT_ERR, - HNS3_ROH_CMD_EXEC_TIMEOUT + HNS3_ROH_CMD_EXEC_SUCCESS = 0, + HNS3_ROH_CMD_NO_AUTH = 1, + HNS3_ROH_CMD_NOT_SUPPORTED = 2, + HNS3_ROH_CMD_QUEUE_FULL = 3, + HNS3_ROH_CMD_NEXT_ERR = 4, + HNS3_ROH_CMD_UNEXE_ERR = 5, + HNS3_ROH_CMD_PARA_ERR = 6, + HNS3_ROH_CMD_RESULT_ERR = 7, + HNS3_ROH_CMD_TIMEOUT = 8, + HNS3_ROH_CMD_HILINK_ERR = 9, + HNS3_ROH_CMD_QUEUE_ILLEGAL = 10, + HNS3_ROH_CMD_INVALID = 11, }; enum hns3_roh_mbx_opcode { @@ -69,11 +76,6 @@ struct hns3_roh_set_eid_info { u8 rsv[16]; }; -struct hns3_roh_get_guid_info { - u8 guid[16]; - u8 rsv[8]; -}; - struct hns3_roh_query_link_status_info { __le32 query_link_status; u8 rsv[20]; diff --git a/drivers/roh/hw/hns3/hns3_main.c b/drivers/roh/hw/hns3/hns3_main.c index 9c618c191..64f9a13e5 100644 --- a/drivers/roh/hw/hns3/hns3_main.c +++ b/drivers/roh/hw/hns3/hns3_main.c @@ -77,7 +77,6 @@ static int hns3_roh_register_device(struct hns3_roh_device *hroh_dev) rohdev->netdev = hroh_dev->netdev; rohdev->ops.set_eid = hns3_roh_set_eid; - rohdev->ops.query_guid = hns3_roh_query_guid; rohdev->ops.alloc_hw_stats = hns3_roh_alloc_hw_stats; rohdev->ops.get_hw_stats = hns3_roh_get_hw_stats; @@ -332,10 +331,8 @@ static int hns3_roh_init_instance(struct hnae3_handle *handle) int ret; id = pci_match_id(hns3_roh_pci_tbl, handle->pdev); - if (!id) { - dev_err(dev, "failed to match pci id.\n"); + if (!id) return 0; - } if (id->driver_data) { dev_err(dev, "not support vf.\n"); @@ -562,8 +559,9 @@ static void hns3_roh_dfx_init(struct hns3_roh_device *hroh_dev) if (IS_ERR_OR_NULL(hroh_dev->dfx_debugfs)) return; - entry = debugfs_create_file("hns3_roh_dfx", 0600, hroh_dev->dfx_debugfs, - hroh_dev, &hns3_roh_dfx_cmd_fops); + entry = debugfs_create_file("hns3_roh_dfx", 0600, + hroh_dev->dfx_debugfs, hroh_dev, + &hns3_roh_dfx_cmd_fops); if (IS_ERR_OR_NULL(entry)) { debugfs_remove_recursive(hroh_dev->dfx_debugfs); hroh_dev->dfx_debugfs = NULL; diff --git a/drivers/roh/hw/hns3/hns3_verbs.c b/drivers/roh/hw/hns3/hns3_verbs.c index 8171f9756..b4d23d66c 100644 --- a/drivers/roh/hw/hns3/hns3_verbs.c +++ b/drivers/roh/hw/hns3/hns3_verbs.c @@ -3,8 +3,8 @@ #include "core.h" -#include "hns3_verbs.h" #include "hns3_cmdq.h" +#include "hns3_verbs.h" int hns3_roh_set_eid(struct roh_device *rohdev, struct roh_eid_attr *eid_attr) { @@ -28,26 +28,6 @@ int hns3_roh_set_eid(struct roh_device *rohdev, struct roh_eid_attr *eid_attr) return 0; } -int hns3_roh_query_guid(struct roh_device *rohdev, struct roh_guid_attr *guid_attr) -{ - struct hns3_roh_device *hroh_dev = to_hroh_dev(rohdev); - struct hns3_roh_get_guid_info *req; - struct hns3_roh_desc desc; - int ret; - - hns3_roh_cmdq_setup_basic_desc(&desc, HNS3_ROH_OPC_GET_GUID, true); - ret = hns3_roh_cmdq_send(hroh_dev, &desc, 1); - if (ret) { - dev_err(hroh_dev->dev, "failed to query guid, ret = %d\n", ret); - return ret; - } - - req = (struct hns3_roh_get_guid_info *)desc.data; - memcpy(guid_attr->data, req->guid, sizeof(req->guid)); - - return 0; -} - static const char * const hns3_roh_hw_stats_name_public[] = { "mac_tx_packet_num", "mac_rx_packet_num", diff --git a/drivers/roh/hw/hns3/hns3_verbs.h b/drivers/roh/hw/hns3/hns3_verbs.h index 152d9b162..f72d0f643 100644 --- a/drivers/roh/hw/hns3/hns3_verbs.h +++ b/drivers/roh/hw/hns3/hns3_verbs.h @@ -7,7 +7,6 @@ #include "hns3_common.h" int hns3_roh_set_eid(struct roh_device *rohdev, struct roh_eid_attr *eid_attr); -int hns3_roh_query_guid(struct roh_device *rohdev, struct roh_guid_attr *guid_attr); struct roh_mib_stats *hns3_roh_alloc_hw_stats(struct roh_device *rohdev, enum roh_mib_type mib_type); int hns3_roh_get_hw_stats(struct roh_device *rohdev, struct roh_mib_stats *stats, -- 2.30.0

2 1

[PATCH PATCH OLK-5.10 0/2] bugfix the lost interruption problem after live migration
by liulongfang 08 Jun '23

08 Jun '23

The problem of service interruption and loss may be triggered during live migration. In order to ensure normal business, it is necessary to resend an interrupt in the live migration driver. And in the QM service driver, it is guaranteed that the retransmission interrupt can be received normally. Longfang Liu (2): crypto: hisilicon/qm - fix EQ/AEQ interrupt issue vfio/migration: bugfix lost interruption after live migration .../hisilicon/migration/acc_vf_migration.c | 66 +++++++---- .../hisilicon/migration/acc_vf_migration.h | 2 + drivers/crypto/hisilicon/qm.c | 107 +++++++----------- include/linux/hisi_acc_qm.h | 1 + 4 files changed, 86 insertions(+), 90 deletions(-) -- 2.24.0

1 2

[PATCH OLK-5.10] drivers/perf: hisi: Fix incorrect get one active cpu
by Junhao He 08 Jun '23

08 Jun '23

driver inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I7BUN2 CVE: NA ---------------------------------------------------------------------- When a cpu going offline, it may be returned by function cpumask_first(). If this happens, the PCIe PMU context is still migrated to the old cpu. Then the CPU continues to run offline processing, which also leads to the call trace. ... [ 368.104662][ T932] task:cpuhp/0 state:D stack: 0 pid: 15 ppid: 2 flags:0x00000008 [ 368.113699][ T932] Call trace: [ 368.116834][ T932] __switch_to+0x7c/0xbc [ 368.120924][ T932] __schedule+0x338/0x6f0 [ 368.125098][ T932] schedule+0x50/0xe0 [ 368.128926][ T932] schedule_preempt_disabled+0x18/0x24 [ 368.134229][ T932] __mutex_lock.constprop.0+0x1d4/0x5dc [ 368.139617][ T932] __mutex_lock_slowpath+0x1c/0x30 [ 368.144573][ T932] mutex_lock+0x50/0x60 [ 368.148579][ T932] perf_pmu_migrate_context+0x84/0x2b0 [ 368.153884][ T932] hisi_pcie_pmu_offline_cpu+0x90/0xe0 [hisi_pcie_pmu] [ 368.160579][ T932] cpuhp_invoke_callback+0x2a0/0x650 [ 368.165707][ T932] cpuhp_thread_fun+0xe4/0x190 [ 368.170316][ T932] smpboot_thread_fn+0x15c/0x1a0 [ 368.175099][ T932] kthread+0x108/0x13c [ 368.179012][ T932] ret_from_fork+0x10/0x18 ... Use function cpumask_any_but() to find one correct active cpu to fixes this issue. Fixes: 8404b0fbc7fb ("drivers/perf: hisi: Add driver for HiSilicon PCIe PMU") Signed-off-by: Junhao He <hejunhao3(a)huawei.com> --- drivers/perf/hisilicon/hisi_pcie_pmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/perf/hisilicon/hisi_pcie_pmu.c b/drivers/perf/hisilicon/hisi_pcie_pmu.c index 88d488765203..8f59387aeab0 100644 --- a/drivers/perf/hisilicon/hisi_pcie_pmu.c +++ b/drivers/perf/hisilicon/hisi_pcie_pmu.c @@ -689,7 +689,7 @@ static int hisi_pcie_pmu_offline_cpu(unsigned int cpu, struct hlist_node *node) pcie_pmu->on_cpu = -1; /* Choose a new CPU from all online cpus. */ - target = cpumask_first(cpu_online_mask); + target = cpumask_any_but(cpu_online_mask, cpu); if (target >= nr_cpu_ids) { pci_err(pcie_pmu->pdev, "There is no CPU to set\n"); return 0; -- 2.33.0

2 1

[PATCH openEuler-1.0-LTS 0/2] smart grid scheduler
by Wang ShaoBo 08 Jun '23

08 Jun '23

v6: ��OK��OK�� ,��mask��level0�� v5: ��pelt. ��review��. v4: fix KABI add 'cpu.affinity_domain_mask' add some statistics v3: ��patchwork��KABI�� v2: formal version 1. Hui Tang (1): sched: Introduce smart grid scheduling strategy for cfs Wang ShaoBo (1): sched: smart grid: init sched_grid_qos structure on QOS purpose fs/proc/array.c | 13 + include/linux/sched.h | 18 ++ include/linux/sched/grid_qos.h | 92 +++++++ include/linux/sched/sysctl.h | 4 + init/Kconfig | 13 + kernel/fork.c | 9 + kernel/sched/Makefile | 1 + kernel/sched/core.c | 145 +++++++++++ kernel/sched/fair.c | 437 ++++++++++++++++++++++++++++++++- kernel/sched/grid/Makefile | 2 + kernel/sched/grid/internal.h | 6 + kernel/sched/grid/power.c | 10 + kernel/sched/grid/qos.c | 126 ++++++++++ kernel/sched/grid/stat.c | 15 ++ kernel/sched/sched.h | 50 ++++ kernel/sysctl.c | 9 + mm/mempolicy.c | 12 +- 17 files changed, 959 insertions(+), 3 deletions(-) create mode 100644 include/linux/sched/grid_qos.h create mode 100644 kernel/sched/grid/Makefile create mode 100644 kernel/sched/grid/internal.h create mode 100644 kernel/sched/grid/power.c create mode 100644 kernel/sched/grid/qos.c create mode 100644 kernel/sched/grid/stat.c -- 2.25.1

1 2

[PATCH openEuler-1.0-LTS 1/3] nbd: get config_lock before sock_shutdown
by Yongqiang Liu 07 Jun '23

07 Jun '23

From: Zhong Jinghua <zhongjinghua(a)huaweicloud.com> hulk inclusion category: bugfix bugzilla: 188799, https://gitee.com/openeuler/kernel/issues/I79QWO CVE: NA ---------------------------------------- Config->socks in sock_shutdown may trigger a UAF problem. The reason is that sock_shutdown does not hold the config_lock, so that nbd_ioctl can release config->socks at this time. T0: NBD_SET_SOCK T1: NBD_DO_IT T0 T1 nbd_ioctl mutex_lock(&nbd->config_lock) // get lock __nbd_ioctl nbd_start_device_ioctl nbd_start_device mutex_unlock(&nbd->config_lock) // relase lock wait_event_interruptible (kill, enter sock_shutdown) sock_shutdown nbd_ioctl mutex_lock(&nbd->config_lock) // get lock __nbd_ioctl nbd_add_socket krealloc kfree(p) //config->socks is NULL nbd_sock *nsock = config->socks // error Fix it by moving config_lock up before sock_shutdown. Signed-off-by: Zhong Jinghua <zhongjinghua(a)huawei.com> Reviewed-by: Yu Kuai <yukuai3(a)huawei.com> Reviewed-by: Hou Tao <houtao1(a)huawei.com> Signed-off-by: Yongqiang Liu <liuyongqiang13(a)huawei.com> --- drivers/block/nbd.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 551b2f7da8ef..a08f35946718 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -1347,11 +1347,16 @@ static int nbd_start_device_ioctl(struct nbd_device *nbd, struct block_device *b mutex_unlock(&nbd->config_lock); ret = wait_event_interruptible(config->recv_wq, atomic_read(&config->recv_threads) == 0); + + /* + * recv_work in flush_workqueue will not get this lock, because nbd_open + * will hold nbd->config_refs + */ + mutex_lock(&nbd->config_lock); if (ret) sock_shutdown(nbd); flush_workqueue(nbd->recv_workq); - mutex_lock(&nbd->config_lock); nbd_bdev_reset(bdev); /* user requested, ignore socket errors */ if (test_bit(NBD_RT_DISCONNECT_REQUESTED, &config->runtime_flags)) -- 2.25.1

1 2

[PATCH OLK-5.10 0/2] ubi: Fix deadlock caused by recursively holding work_sem
by ZhaoLong Wang 07 Jun '23

07 Jun '23

Fix deadlock caused by recursively holding work_sem Lee Jones (1): mtd: ubi: wl: Fix a couple of kernel-doc issues ZhaoLong Wang (1): ubi: Fix deadlock caused by recursively holding work_sem drivers/mtd/ubi/wl.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) -- 2.39.2

2 3

[PATCH OLK-5.10 0/4] io_uring: fix the problem of running
by Li Lingfeng 07 Jun '23

07 Jun '23

patch1: arch: setup PF_IO_WORKER threads like PF_KTHREAD pre patch of patch4 patch2: arch: ensure parisc/powerpc handle PF_IO_WORKER in copy_thread() fix patch of patch1 patch3: kernel: don't call do_exit() for PF_IO_WORKER threads fix the segfault patch4: x86/process: setup io_threads more like normal user space threads allow io worker to exit Jens Axboe (3): arch: setup PF_IO_WORKER threads like PF_KTHREAD arch: ensure parisc/powerpc handle PF_IO_WORKER in copy_thread() kernel: don't call do_exit() for PF_IO_WORKER threads Stefan Metzmacher (1): x86/process: setup io_threads more like normal user space threads arch/alpha/kernel/process.c | 2 +- arch/arc/kernel/process.c | 2 +- arch/arm/kernel/process.c | 2 +- arch/arm64/kernel/process.c | 2 +- arch/csky/kernel/process.c | 2 +- arch/h8300/kernel/process.c | 2 +- arch/hexagon/kernel/process.c | 2 +- arch/ia64/kernel/process.c | 2 +- arch/m68k/kernel/process.c | 2 +- arch/microblaze/kernel/process.c | 2 +- arch/mips/kernel/process.c | 2 +- arch/nds32/kernel/process.c | 2 +- arch/nios2/kernel/process.c | 2 +- arch/openrisc/kernel/process.c | 2 +- arch/parisc/kernel/process.c | 2 +- arch/powerpc/kernel/process.c | 2 +- arch/riscv/kernel/process.c | 2 +- arch/s390/kernel/process.c | 2 +- arch/sh/kernel/process_32.c | 2 +- arch/sparc/kernel/process_32.c | 2 +- arch/sparc/kernel/process_64.c | 2 +- arch/um/kernel/process.c | 2 +- arch/x86/kernel/process.c | 17 +++++++++++++++++ arch/xtensa/kernel/process.c | 2 +- kernel/signal.c | 10 +++++++++- 25 files changed, 49 insertions(+), 24 deletions(-) -- 2.31.1

2 5

[PATCH OLK-5.10 0/4] crypto: hisilicon - fix mailbox operation process
by Weili Qian 07 Jun '23

07 Jun '23

From: JiangShui Yang <yangjiangshui(a)h-partners.com> The mailbox of the Kunpeng accelerator is a special operation. Data(128 bits) needs to be read from hardware or written to hardware at one time. And the operation cannot be canceled by software. Therefore, the software process needs to be modified to avoid mailbox operation errors. Weili Qian (4): crypto: hisilicon/qm - obtain the mailbox configuration at one time vfio/migration: obtain the mailbox configuration at one time crypto: hisilicon/qm - fix the pf2vf timeout when device reset crypto: hisilicon/qm - alloc buffer to set and get xqc drivers/crypto/hisilicon/debugfs.c | 75 +-- .../hisilicon/migration/acc_vf_migration.c | 176 +++--- .../hisilicon/migration/acc_vf_migration.h | 8 +- drivers/crypto/hisilicon/qm.c | 532 +++++++++--------- drivers/crypto/hisilicon/qm_common.h | 5 +- include/linux/hisi_acc_qm.h | 18 +- 6 files changed, 429 insertions(+), 385 deletions(-) -- 2.30.0

1 4

[PATCH OLK-5.10] kobject: Fix slab-out-of-bounds in fill_kobj_path()
by Xia Fukun 07 Jun '23

07 Jun '23

mainline inclusion from mainline-v6.4-rc3 commit 3bb2a01caa813d3a1845d378bbe4169ef280d394 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I697JG CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ---------------------------------------- In kobject_get_path(), if kobj->name is changed between calls get_kobj_path_length() and fill_kobj_path() and the length becomes longer, then fill_kobj_path() will have an out-of-bounds bug. The actual current problem occurs when the ixgbe probe. In ixgbe_mii_bus_init(), if the length of netdev->dev.kobj.name length becomes longer, out-of-bounds will occur. cpu0 cpu1 ixgbe_probe register_netdev(netdev) netdev_register_kobject device_add kobject_uevent // Sending ADD events systemd-udevd // rename netdev dev_change_name device_rename kobject_rename ixgbe_mii_bus_init | mdiobus_register | __mdiobus_register | device_register | device_add | kobject_uevent | kobject_get_path | len = get_kobj_path_length // old name | path = kzalloc(len, gfp_mask); | kobj->name = name; /* name length becomes * longer */ fill_kobj_path /* kobj path length is * longer than path, * resulting in out of * bounds when filling path */ This is the kasan report: ================================================================== BUG: KASAN: slab-out-of-bounds in fill_kobj_path+0x50/0xc0 Write of size 7 at addr ff1100090573d1fd by task kworker/28:1/673 Workqueue: events work_for_cpu_fn Call Trace: <TASK> dump_stack_lvl+0x34/0x48 print_address_description.constprop.0+0x86/0x1e7 print_report+0x36/0x4f kasan_report+0xad/0x130 kasan_check_range+0x35/0x1c0 memcpy+0x39/0x60 fill_kobj_path+0x50/0xc0 kobject_get_path+0x5a/0xc0 kobject_uevent_env+0x140/0x460 device_add+0x5c7/0x910 __mdiobus_register+0x14e/0x490 ixgbe_probe.cold+0x441/0x574 [ixgbe] local_pci_probe+0x78/0xc0 work_for_cpu_fn+0x26/0x40 process_one_work+0x3b6/0x6a0 worker_thread+0x368/0x520 kthread+0x165/0x1a0 ret_from_fork+0x1f/0x30 This reproducer triggers that bug: while: do rmmod ixgbe sleep 0.5 modprobe ixgbe sleep 0.5 When calling fill_kobj_path() to fill path, if the name length of kobj becomes longer, return failure and retry. This fixes the problem. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Wang Hai <wanghai38(a)huawei.com> Link: https://lore.kernel.org/r/20221220012143.52141-1-wanghai38@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Xia Fukun <xiafukun(a)huawei.com> --- lib/kobject.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/lib/kobject.c b/lib/kobject.c index ea53b30cf483..617a25ec355d 100644 --- a/lib/kobject.c +++ b/lib/kobject.c @@ -144,7 +144,7 @@ static int get_kobj_path_length(struct kobject *kobj) return length; } -static void fill_kobj_path(struct kobject *kobj, char *path, int length) +static int fill_kobj_path(struct kobject *kobj, char *path, int length) { struct kobject *parent; @@ -153,12 +153,16 @@ static void fill_kobj_path(struct kobject *kobj, char *path, int length) int cur = strlen(kobject_name(parent)); /* back up enough to print this name with '/' */ length -= cur; + if (length <= 0) + return -EINVAL; memcpy(path + length, kobject_name(parent), cur); *(path + --length) = '/'; } pr_debug("kobject: '%s' (%p): %s: path = '%s'\n", kobject_name(kobj), kobj, __func__, path); + + return 0; } /** @@ -173,13 +177,17 @@ char *kobject_get_path(struct kobject *kobj, gfp_t gfp_mask) char *path; int len; +retry: len = get_kobj_path_length(kobj); if (len == 0) return NULL; path = kzalloc(len, gfp_mask); if (!path) return NULL; - fill_kobj_path(kobj, path, len); + if (fill_kobj_path(kobj, path, len)) { + kfree(path); + goto retry; + } return path; } -- 2.17.1

2 1

[PATCH OLK-5.10 0/2] Fix ORC unwinder on paravirt {save,restore}_fl
by Chen Zhongjin 07 Jun '23

07 Jun '23

ISSUE: gitee.com/openeuler/kernel/issues/I6DK3O Chen Zhongjin (2): x86/unwind: Fix orc entry for paravirt {save,restore}_fl x86/unwind: Fix check_paravirt() calls orc_find() before declaration arch/x86/kernel/unwind_orc.c | 45 +++++++++++++++++++++++++++++++++++- 1 file changed, 44 insertions(+), 1 deletion(-) -- 2.17.1

2 3

[PATCH OLK-5.10 0/6] Support dynamic_hugetlb on arm64 and fix some bug
by Liu Shixin 07 Jun '23

07 Jun '23

Support dynamic_hugetlb on arm64 and fix some bug. Liu Shixin (6): mm/dynamic_hugetlb: fix kabi broken when enable CONFIG_DYNAMIC_HUGETLB on arm64 mm/dynamic_hugetlb: support dynamic hugetlb on arm64 mm/dynamic_hugetlb: isolate hugepage without dissolve mm/dynamic_hugetlb: replace spin_lock with mutex_lock and fix kabi broken mm/dynamic_hugetlb: set PagePool to bad page mm/dynamic_hugetlb: fix type error of pfn in __hpool_split_gigantic_page() fs/Kconfig | 2 +- fs/hugetlbfs/inode.c | 2 +- include/linux/dynamic_hugetlb.h | 24 +++++++++++++-- include/linux/memcontrol.h | 6 +++- mm/dynamic_hugetlb.c | 54 +++++++++++++++++++++++++++------ mm/hugetlb.c | 7 +++++ 6 files changed, 80 insertions(+), 15 deletions(-) -- 2.25.1

2 7

[PATCH 0/4] crypto: hisilicon - fix mailbox operation process
by Weili Qian 07 Jun '23

07 Jun '23

The mailbox of the Kunpeng accelerator is a special operation. Data(128 bits) needs to be read from hardware or written to hardware at one time. And the operation cannot be canceled by software. Therefore, the software process needs to be modified to avoid mailbox operation errors. Weili Qian (4): crypto: hisilicon/qm - obtain the mailbox configuration at one time vfio/migration: obtain the mailbox configuration at one time crypto: hisilicon/qm - fix the pf2vf timeout when device reset crypto: hisilicon/qm - alloc buffer to set and get xqc drivers/crypto/hisilicon/debugfs.c | 75 +-- .../hisilicon/migration/acc_vf_migration.c | 176 +++--- .../hisilicon/migration/acc_vf_migration.h | 8 +- drivers/crypto/hisilicon/qm.c | 532 +++++++++--------- drivers/crypto/hisilicon/qm_common.h | 5 +- include/linux/hisi_acc_qm.h | 18 +- 6 files changed, 429 insertions(+), 385 deletions(-) -- 2.30.0

1 4

[PATCH OLK-5.10] kobject: Fix slab-out-of-bounds in fill_kobj_path()
by Xia Fukun 07 Jun '23

07 Jun '23

mainline inclusion from mainline-v6.4-rc3 commit 3bb2a01caa813d3a1845d378bbe4169ef280d394 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I697JG CVE: NA ---------------------------------------- In kobject_get_path(), if kobj->name is changed between calls get_kobj_path_length() and fill_kobj_path() and the length becomes longer, then fill_kobj_path() will have an out-of-bounds bug. The actual current problem occurs when the ixgbe probe. In ixgbe_mii_bus_init(), if the length of netdev->dev.kobj.name length becomes longer, out-of-bounds will occur. cpu0 cpu1 ixgbe_probe register_netdev(netdev) netdev_register_kobject device_add kobject_uevent // Sending ADD events systemd-udevd // rename netdev dev_change_name device_rename kobject_rename ixgbe_mii_bus_init | mdiobus_register | __mdiobus_register | device_register | device_add | kobject_uevent | kobject_get_path | len = get_kobj_path_length // old name | path = kzalloc(len, gfp_mask); | kobj->name = name; /* name length becomes * longer */ fill_kobj_path /* kobj path length is * longer than path, * resulting in out of * bounds when filling path */ This is the kasan report: ================================================================== BUG: KASAN: slab-out-of-bounds in fill_kobj_path+0x50/0xc0 Write of size 7 at addr ff1100090573d1fd by task kworker/28:1/673 Workqueue: events work_for_cpu_fn Call Trace: <TASK> dump_stack_lvl+0x34/0x48 print_address_description.constprop.0+0x86/0x1e7 print_report+0x36/0x4f kasan_report+0xad/0x130 kasan_check_range+0x35/0x1c0 memcpy+0x39/0x60 fill_kobj_path+0x50/0xc0 kobject_get_path+0x5a/0xc0 kobject_uevent_env+0x140/0x460 device_add+0x5c7/0x910 __mdiobus_register+0x14e/0x490 ixgbe_probe.cold+0x441/0x574 [ixgbe] local_pci_probe+0x78/0xc0 work_for_cpu_fn+0x26/0x40 process_one_work+0x3b6/0x6a0 worker_thread+0x368/0x520 kthread+0x165/0x1a0 ret_from_fork+0x1f/0x30 This reproducer triggers that bug: while: do rmmod ixgbe sleep 0.5 modprobe ixgbe sleep 0.5 When calling fill_kobj_path() to fill path, if the name length of kobj becomes longer, return failure and retry. This fixes the problem. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Wang Hai <wanghai38(a)huawei.com> Link: https://lore.kernel.org/r/20221220012143.52141-1-wanghai38@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Xia Fukun <xiafukun(a)huawei.com> --- lib/kobject.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/lib/kobject.c b/lib/kobject.c index ea53b30cf483..617a25ec355d 100644 --- a/lib/kobject.c +++ b/lib/kobject.c @@ -144,7 +144,7 @@ static int get_kobj_path_length(struct kobject *kobj) return length; } -static void fill_kobj_path(struct kobject *kobj, char *path, int length) +static int fill_kobj_path(struct kobject *kobj, char *path, int length) { struct kobject *parent; @@ -153,12 +153,16 @@ static void fill_kobj_path(struct kobject *kobj, char *path, int length) int cur = strlen(kobject_name(parent)); /* back up enough to print this name with '/' */ length -= cur; + if (length <= 0) + return -EINVAL; memcpy(path + length, kobject_name(parent), cur); *(path + --length) = '/'; } pr_debug("kobject: '%s' (%p): %s: path = '%s'\n", kobject_name(kobj), kobj, __func__, path); + + return 0; } /** @@ -173,13 +177,17 @@ char *kobject_get_path(struct kobject *kobj, gfp_t gfp_mask) char *path; int len; +retry: len = get_kobj_path_length(kobj); if (len == 0) return NULL; path = kzalloc(len, gfp_mask); if (!path) return NULL; - fill_kobj_path(kobj, path, len); + if (fill_kobj_path(kobj, path, len)) { + kfree(path); + goto retry; + } return path; } -- 2.17.1

2 1

[PATCH openEuler-1.0-LTS v5 0/2] introduce smart grid scheduler.
by Wang ShaoBo 07 Jun '23

07 Jun '23

introduce smart grid scheduler. v5: 调度部分已完成评审完成代码修改，逃逸部分仍然使用pelt. 内存策略调整模块已经按照review已将进行修改. v4: fix KABI add 'cpu.affinity_domain_mask' add some statistics v3: 修改了patchwork错误，但是KABI还有个问题待解决。 v2: formal version 1. Hui Tang (1): sched: Introduce smart grid scheduling strategy for cfs Wang ShaoBo (1): sched: smart grid: init sched_grid_qos structure on QOS purpose fs/proc/array.c | 13 + include/linux/sched.h | 18 ++ include/linux/sched/grid_qos.h | 84 +++++++ include/linux/sched/sysctl.h | 4 + init/Kconfig | 13 + kernel/fork.c | 9 + kernel/sched/Makefile | 1 + kernel/sched/core.c | 147 ++++++++++++ kernel/sched/fair.c | 425 ++++++++++++++++++++++++++++++++- kernel/sched/grid/Makefile | 2 + kernel/sched/grid/internal.h | 6 + kernel/sched/grid/power.c | 10 + kernel/sched/grid/qos.c | 125 ++++++++++ kernel/sched/grid/stat.c | 15 ++ kernel/sched/sched.h | 50 ++++ kernel/sysctl.c | 9 + mm/mempolicy.c | 12 +- 17 files changed, 940 insertions(+), 3 deletions(-) create mode 100644 include/linux/sched/grid_qos.h create mode 100644 kernel/sched/grid/Makefile create mode 100644 kernel/sched/grid/internal.h create mode 100644 kernel/sched/grid/power.c create mode 100644 kernel/sched/grid/qos.c create mode 100644 kernel/sched/grid/stat.c -- 2.25.1

1 2

[PATCH OLK-5.10 0/2] block: iocost bugfix
by Li Nan 07 Jun '23

07 Jun '23

This patch series fix iocost life cycle bug. Li Nan (2): block: fix null-pointer dereference in ioc_pd_init block: fix order error in blk_release_queue block/blk-core.c | 2 -- block/blk-sysfs.c | 2 ++ 2 files changed, 2 insertions(+), 2 deletions(-) -- 2.39.2

1 2

[PATCH OLK-5.10 00/35] xfs: fixes patchs and backport patchs
by Long Li 07 Jun '23

07 Jun '23

Allison Henderson (1): xfs: increase rename inode reservation ChenXiaoSong (1): xfs: fix NULL pointer dereference in xfs_getbmap() Darrick J. Wong (6): xfs: check return codes when flushing block devices xfs: fix maxlevels comparisons in the btree staging code xfs: shut down filesystem if we xfs_trans_cancel with deferred work items xfs: don't expose internal symlink metadata buffers to the vfs xfs: fix negative array access in xfs_getbmap iomap: iomap: fix memory corruption when recording errors during writeback Dave Chinner (13): xfs: remove xfs_blkdev_issue_flush xfs: AIL should be log centric xfs: shutdown in intent recovery has non-intent items in the AIL xfs: log shutdown triggers should only shut down the log xfs: xfs_do_force_shutdown needs to block racing shutdowns xfs: xfs_trans_commit() path must check for log shutdown xfs: shutdown during log recovery needs to mark the log shutdown xfs: remove XFS_PREALLOC_SYNC xfs: fallocate() should call file_modified() xfs: sb verifier doesn't handle uncached sb buffer xfs: write page faults in iomap are not buffered writes iomap: write iomap validity checks xfs: use iomap_valid method to detect stale cached iomaps Gao Xiang (1): xfs: account extra freespace btree splits for multiple allocations Guo Xuenan (3): Revert "[Huawei] xfs: fix uaf when leaf dir bestcount not match with dir data blocks" xfs: fix exception caused by unexpected illegal bestcount in leaf dir xfs: force shutdown xfs when xfs_attr_inactive fails Long Li (4): xfs: fix ag count overflow during growfs xfs: fix hung when transaction commit fail in xfs_inactive_ifree xfs: fix a UAF when inode item push xfs: fix a UAF in xfs_iflush_abort_clean Shida Zhang (1): xfs: trim the mapp array accordingly in xfs_da_grow_inode_int Wu Guanghao (1): xfs: fix the problem of mount failure caused by not refreshing mp->m_sb Ye Bin (2): xfs: fix BUG_ON in xfs_getbmap() xfs: fix dead loop when do mount with IO fault injection Zhang Yi (2): xfs: factor out __xfs_da3_node_read() xfs: atomic drop extent entries when inactiving attr fs/iomap/apply.c | 14 +++- fs/iomap/buffered-io.c | 29 ++++++++- fs/xfs/libxfs/xfs_alloc.c | 9 ++- fs/xfs/libxfs/xfs_alloc.h | 1 + fs/xfs/libxfs/xfs_bmap.c | 7 +- fs/xfs/libxfs/xfs_btree_staging.c | 4 +- fs/xfs/libxfs/xfs_da_btree.c | 7 +- fs/xfs/libxfs/xfs_da_btree.h | 15 ++++- fs/xfs/libxfs/xfs_dir2_leaf.c | 21 ++---- fs/xfs/libxfs/xfs_ialloc.c | 1 + fs/xfs/libxfs/xfs_sb.c | 2 +- fs/xfs/libxfs/xfs_trans_resv.c | 4 +- fs/xfs/xfs_aops.c | 2 +- fs/xfs/xfs_attr_inactive.c | 66 ++++++++++++++----- fs/xfs/xfs_bmap_util.c | 34 +++++----- fs/xfs/xfs_buf.c | 7 +- fs/xfs/xfs_buf.h | 7 +- fs/xfs/xfs_buf_item.c | 20 ++++++ fs/xfs/xfs_buf_item_recover.c | 24 +++++++ fs/xfs/xfs_file.c | 49 ++++++++------ fs/xfs/xfs_fsops.c | 9 ++- fs/xfs/xfs_inode.c | 5 +- fs/xfs/xfs_inode_item.c | 11 +++- fs/xfs/xfs_iomap.c | 105 ++++++++++++++++++++++++------ fs/xfs/xfs_iomap.h | 7 +- fs/xfs/xfs_iops.c | 34 +--------- fs/xfs/xfs_log.c | 68 +++++++++++++------ fs/xfs/xfs_log_cil.c | 4 +- fs/xfs/xfs_log_priv.h | 11 ++++ fs/xfs/xfs_log_recover.c | 56 ++++++---------- fs/xfs/xfs_mount.c | 1 + fs/xfs/xfs_pnfs.c | 12 ++-- fs/xfs/xfs_super.c | 7 -- fs/xfs/xfs_super.h | 1 - fs/xfs/xfs_symlink.c | 27 +++++--- fs/xfs/xfs_trans.c | 61 ++++++++++++----- fs/xfs/xfs_trans_ail.c | 30 ++++----- fs/xfs/xfs_trans_priv.h | 3 +- include/linux/iomap.h | 39 +++++++++-- 39 files changed, 549 insertions(+), 265 deletions(-) -- 2.31.1

2 36

[PATCH OLK-5.10] mm: page_counter: remove unneeded atomic ops for low/min
by Peng Zhang 07 Jun '23

07 Jun '23

From: Shakeel Butt <shakeelb(a)google.com> mainline inclusion from mainline-v6.1-rc1 commit cfdab60bfa66b2dc0391c9e405b8af6039924cd4 category: perf bugzilla: https://gitee.com/openeuler/kernel/issues/I7BHGR CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- Patch series "memcg: optimize charge codepath", v2. Recently Linux networking stack has moved from a very old per socket pre-charge caching to per-cpu caching to avoid pre-charge fragmentation and unwarranted OOMs. One impact of this change is that for network traffic workloads, memcg charging codepath can become a bottleneck. The kernel test robot has also reported this regression[1]. This patch series tries to improve the memcg charging for such workloads. This patch series implement three optimizations: (A) Reduce atomic ops in page counter update path. (B) Change layout of struct page_counter to eliminate false sharing between usage and high. (C) Increase the memcg charge batch to 64. To evaluate the impact of these optimizations, on a 72 CPUs machine, we ran the following workload in root memcg and then compared with scenario where the workload is run in a three level of cgroup hierarchy with top level having min and low setup appropriately. $ netserver -6 # 36 instances of netperf with following params $ netperf -6 -H ::1 -l 60 -t TCP_SENDFILE -- -m 10K Results (average throughput of netperf): 1. root memcg 21694.8 Mbps 2. 6.0-rc1 10482.7 Mbps (-51.6%) 3. 6.0-rc1 + (A) 14542.5 Mbps (-32.9%) 4. 6.0-rc1 + (B) 12413.7 Mbps (-42.7%) 5. 6.0-rc1 + (C) 17063.7 Mbps (-21.3%) 6. 6.0-rc1 + (A+B+C) 20120.3 Mbps (-7.2%) With all three optimizations, the memcg overhead of this workload has been reduced from 51.6% to just 7.2%. [1] https://lore.kernel.org/linux-mm/20220619150456.GB34471@xsang-OptiPlex-9020/ This patch (of 3): For cgroups using low or min protections, the function propagate_protected_usage() was doing an atomic xchg() operation irrespectively. We can optimize out this atomic operation for one specific scenario where the workload is using the protection (i.e. min > 0) and the usage is above the protection (i.e. usage > min). This scenario is actually very common where the users want a part of their workload to be protected against the external reclaim. Though this optimization does introduce a race when the usage is around the protection and concurrent charges and uncharged trip it over or under the protection. In such cases, we might see lower effective protection but the subsequent charge/uncharge will correct it. To evaluate the impact of this optimization, on a 72 CPUs machine, we ran the following workload in a three level of cgroup hierarchy with top level having min and low setup appropriately to see if this optimization is effective for the mentioned case. $ netserver -6 # 36 instances of netperf with following params $ netperf -6 -H ::1 -l 60 -t TCP_SENDFILE -- -m 10K Results (average throughput of netperf): Without (6.0-rc1) 10482.7 Mbps With patch 14542.5 Mbps (38.7% improvement) With the patch, the throughput improved by 38.7% Link: https://lkml.kernel.org/r/20220825000506.239406-1-shakeelb@google.com Link: https://lkml.kernel.org/r/20220825000506.239406-2-shakeelb@google.com Signed-off-by: Shakeel Butt <shakeelb(a)google.com> Reported-by: kernel test robot <oliver.sang(a)intel.com> Acked-by: Soheil Hassas Yeganeh <soheil(a)google.com> Reviewed-by: Feng Tang <feng.tang(a)intel.com> Acked-by: Roman Gushchin <roman.gushchin(a)linux.dev> Acked-by: Michal Hocko <mhocko(a)suse.com> Cc: Eric Dumazet <edumazet(a)google.com> Cc: Johannes Weiner <hannes(a)cmpxchg.org> Cc: "Michal Koutný" <mkoutny(a)suse.com> Cc: Muchun Song <songmuchun(a)bytedance.com> Cc: Oliver Sang <oliver.sang(a)intel.com> Cc: Soheil Hassas Yeganeh <soheil(a)google.com> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: ZhangPeng <zhangpeng362(a)huawei.com> --- mm/page_counter.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/mm/page_counter.c b/mm/page_counter.c index 6d8715e3255d..e67e54e836b1 100644 --- a/mm/page_counter.c +++ b/mm/page_counter.c @@ -17,24 +17,23 @@ static void propagate_protected_usage(struct page_counter *c, unsigned long usage) { unsigned long protected, old_protected; - unsigned long low, min; long delta; if (!c->parent) return; - min = READ_ONCE(c->min); - if (min || atomic_long_read(&c->min_usage)) { - protected = min(usage, min); + protected = min(usage, READ_ONCE(c->min)); + old_protected = atomic_long_read(&c->min_usage); + if (protected != old_protected) { old_protected = atomic_long_xchg(&c->min_usage, protected); delta = protected - old_protected; if (delta) atomic_long_add(delta, &c->parent->children_min_usage); } - low = READ_ONCE(c->low); - if (low || atomic_long_read(&c->low_usage)) { - protected = min(usage, low); + protected = min(usage, READ_ONCE(c->low)); + old_protected = atomic_long_read(&c->low_usage); + if (protected != old_protected) { old_protected = atomic_long_xchg(&c->low_usage, protected); delta = protected - old_protected; if (delta) -- 2.25.1

2 1

[PATCH openEuler-1.0-LTS 1/3] dm thin: Fix ABBA deadlock by resetting dm_bufio_client
by Yongqiang Liu 07 Jun '23

07 Jun '23

From: Li Lingfeng <lilingfeng3(a)huawei.com> hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I79ZEK CVE: NA -------------------------------- As described in commit 273494b2cf1f ("dm thin: Fix ABBA deadlock between shrink_slab and dm_pool_abort_metadata"), ABBA deadlock will be triggered since shrinker_rwsem need to be held when operations failed on dm pool metadata. We have noticed the following three problem scenarios: 1) Described by commit 273494b2cf1f ("dm thin: Fix ABBA deadlock between shrink_slab and dm_pool_abort_metadata") 2) shrinker_rwsem and throttle->lock P1(drop cache) P2(kworker) drop_caches_sysctl_handler drop_slab shrink_slab down_read(&shrinker_rwsem) - LOCK A do_shrink_slab super_cache_scan prune_icache_sb dispose_list evict ext4_evict_inode ext4_clear_inode ext4_discard_preallocations ext4_mb_load_buddy_gfp ext4_mb_init_cache ext4_wait_block_bitmap __ext4_error ext4_handle_error ext4_commit_super ... dm_submit_bio do_worker throttle_work_update down_write(&t->lock) -- LOCK B process_deferred_bios commit metadata_operation_failed dm_pool_abort_metadata dm_block_manager_create dm_bufio_client_create register_shrinker down_write(&shrinker_rwsem) -- LOCK A thin_map thin_bio_map thin_defer_bio_with_throttle throttle_lock down_read(&t->lock) - LOCK B 3) shrinker_rwsem and wait_on_buffer P1(drop cache) P2(kworker) drop_caches_sysctl_handler drop_slab shrink_slab down_read(&shrinker_rwsem) - LOCK A do_shrink_slab ... ext4_wait_block_bitmap __ext4_error ext4_handle_error jbd2_journal_abort jbd2_journal_update_sb_errno jbd2_write_superblock submit_bh // LOCK B // RELEASE B do_worker throttle_work_update down_write(&t->lock) - LOCK B process_deferred_bios process_bio commit metadata_operation_failed dm_pool_abort_metadata dm_block_manager_create dm_bufio_client_create register_shrinker register_shrinker_prepared down_write(&shrinker_rwsem) - LOCK A bio_endio wait_on_buffer __wait_on_buffer Fix these by resetting dm_bufio_client without holding shrinker_rwsem. Signed-off-by: Li Lingfeng <lilingfeng3(a)huawei.com> Reviewed-by: Hou Tao <houtao1(a)huawei.com> Signed-off-by: Yongqiang Liu <liuyongqiang13(a)huawei.com> --- drivers/md/dm-bufio.c | 6 ++ drivers/md/dm-thin-metadata.c | 57 ++++++++----------- drivers/md/persistent-data/dm-block-manager.c | 6 ++ drivers/md/persistent-data/dm-block-manager.h | 1 + drivers/md/persistent-data/dm-space-map.h | 3 +- .../persistent-data/dm-transaction-manager.c | 3 + include/linux/dm-bufio.h | 2 + 7 files changed, 45 insertions(+), 33 deletions(-) diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c index b3b799f84dcc..0b41e1db4de9 100644 --- a/drivers/md/dm-bufio.c +++ b/drivers/md/dm-bufio.c @@ -1800,6 +1800,12 @@ void dm_bufio_client_destroy(struct dm_bufio_client *c) } EXPORT_SYMBOL_GPL(dm_bufio_client_destroy); +void dm_bufio_client_reset(struct dm_bufio_client *c) +{ + drop_buffers(c); +} +EXPORT_SYMBOL_GPL(dm_bufio_client_reset); + void dm_bufio_set_sector_offset(struct dm_bufio_client *c, sector_t start) { c->start = start; diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c index 26f04b84e8a2..e37f468cdbf0 100644 --- a/drivers/md/dm-thin-metadata.c +++ b/drivers/md/dm-thin-metadata.c @@ -533,6 +533,8 @@ static int __format_metadata(struct dm_pool_metadata *pmd) r = dm_tm_create_with_sm(pmd->bm, THIN_SUPERBLOCK_LOCATION, &pmd->tm, &pmd->metadata_sm); if (r < 0) { + pmd->tm = NULL; + pmd->metadata_sm = NULL; DMERR("tm_create_with_sm failed"); return r; } @@ -541,6 +543,7 @@ static int __format_metadata(struct dm_pool_metadata *pmd) if (IS_ERR(pmd->data_sm)) { DMERR("sm_disk_create failed"); r = PTR_ERR(pmd->data_sm); + pmd->data_sm = NULL; goto bad_cleanup_tm; } @@ -571,11 +574,15 @@ static int __format_metadata(struct dm_pool_metadata *pmd) bad_cleanup_nb_tm: dm_tm_destroy(pmd->nb_tm); + pmd->nb_tm = NULL; bad_cleanup_data_sm: dm_sm_destroy(pmd->data_sm); + pmd->data_sm = NULL; bad_cleanup_tm: dm_tm_destroy(pmd->tm); + pmd->tm = NULL; dm_sm_destroy(pmd->metadata_sm); + pmd->metadata_sm = NULL; return r; } @@ -641,6 +648,8 @@ static int __open_metadata(struct dm_pool_metadata *pmd) sizeof(disk_super->metadata_space_map_root), &pmd->tm, &pmd->metadata_sm); if (r < 0) { + pmd->tm = NULL; + pmd->metadata_sm = NULL; DMERR("tm_open_with_sm failed"); goto bad_unlock_sblock; } @@ -650,6 +659,7 @@ static int __open_metadata(struct dm_pool_metadata *pmd) if (IS_ERR(pmd->data_sm)) { DMERR("sm_disk_open failed"); r = PTR_ERR(pmd->data_sm); + pmd->data_sm = NULL; goto bad_cleanup_tm; } @@ -676,9 +686,12 @@ static int __open_metadata(struct dm_pool_metadata *pmd) bad_cleanup_data_sm: dm_sm_destroy(pmd->data_sm); + pmd->data_sm = NULL; bad_cleanup_tm: dm_tm_destroy(pmd->tm); + pmd->tm = NULL; dm_sm_destroy(pmd->metadata_sm); + pmd->metadata_sm = NULL; bad_unlock_sblock: dm_bm_unlock(sblock); @@ -725,9 +738,13 @@ static void __destroy_persistent_data_objects(struct dm_pool_metadata *pmd, bool destroy_bm) { dm_sm_destroy(pmd->data_sm); + pmd->data_sm = NULL; dm_sm_destroy(pmd->metadata_sm); + pmd->metadata_sm = NULL; dm_tm_destroy(pmd->nb_tm); + pmd->nb_tm = NULL; dm_tm_destroy(pmd->tm); + pmd->tm = NULL; if (destroy_bm) dm_block_manager_destroy(pmd->bm); } @@ -919,8 +936,7 @@ int dm_pool_metadata_close(struct dm_pool_metadata *pmd) __func__, r); } - if (!pmd->fail_io) - __destroy_persistent_data_objects(pmd, true); + __destroy_persistent_data_objects(pmd, true); kfree(pmd); return 0; @@ -1820,53 +1836,30 @@ static void __set_abort_with_changes_flags(struct dm_pool_metadata *pmd) int dm_pool_abort_metadata(struct dm_pool_metadata *pmd) { int r = -EINVAL; - struct dm_block_manager *old_bm = NULL, *new_bm = NULL; /* fail_io is double-checked with pmd->root_lock held below */ if (unlikely(pmd->fail_io)) return r; - /* - * Replacement block manager (new_bm) is created and old_bm destroyed outside of - * pmd root_lock to avoid ABBA deadlock that would result (due to life-cycle of - * shrinker associated with the block manager's bufio client vs pmd root_lock). - * - must take shrinker_rwsem without holding pmd->root_lock - */ - new_bm = dm_block_manager_create(pmd->bdev, THIN_METADATA_BLOCK_SIZE << SECTOR_SHIFT, - THIN_MAX_CONCURRENT_LOCKS); - down_write(&pmd->root_lock); if (pmd->fail_io) { up_write(&pmd->root_lock); - goto out; + return r; } __set_abort_with_changes_flags(pmd); + + /* destroy data_sm/metadata_sm/nb_tm/tm */ __destroy_persistent_data_objects(pmd, false); - old_bm = pmd->bm; - if (IS_ERR(new_bm)) { - DMERR("could not create block manager during abort"); - pmd->bm = NULL; - r = PTR_ERR(new_bm); - goto out_unlock; - } - pmd->bm = new_bm; + /* reset bm */ + dm_block_manager_reset(pmd->bm); + + /* rebuild data_sm/metadata_sm/nb_tm/tm */ r = __open_or_format_metadata(pmd, false); - if (r) { - pmd->bm = NULL; - goto out_unlock; - } - new_bm = NULL; -out_unlock: if (r) pmd->fail_io = true; up_write(&pmd->root_lock); - dm_block_manager_destroy(old_bm); -out: - if (new_bm && !IS_ERR(new_bm)) - dm_block_manager_destroy(new_bm); - return r; } diff --git a/drivers/md/persistent-data/dm-block-manager.c b/drivers/md/persistent-data/dm-block-manager.c index 0401daa0f7fb..11dd247cf85d 100644 --- a/drivers/md/persistent-data/dm-block-manager.c +++ b/drivers/md/persistent-data/dm-block-manager.c @@ -415,6 +415,12 @@ void dm_block_manager_destroy(struct dm_block_manager *bm) } EXPORT_SYMBOL_GPL(dm_block_manager_destroy); +void dm_block_manager_reset(struct dm_block_manager *bm) +{ + dm_bufio_client_reset(bm->bufio); +} +EXPORT_SYMBOL_GPL(dm_block_manager_reset); + unsigned dm_bm_block_size(struct dm_block_manager *bm) { return dm_bufio_get_block_size(bm->bufio); diff --git a/drivers/md/persistent-data/dm-block-manager.h b/drivers/md/persistent-data/dm-block-manager.h index e728937f376a..644cd7015e28 100644 --- a/drivers/md/persistent-data/dm-block-manager.h +++ b/drivers/md/persistent-data/dm-block-manager.h @@ -35,6 +35,7 @@ struct dm_block_manager *dm_block_manager_create( struct block_device *bdev, unsigned block_size, unsigned max_held_per_thread); void dm_block_manager_destroy(struct dm_block_manager *bm); +void dm_block_manager_reset(struct dm_block_manager *bm); unsigned dm_bm_block_size(struct dm_block_manager *bm); dm_block_t dm_bm_nr_blocks(struct dm_block_manager *bm); diff --git a/drivers/md/persistent-data/dm-space-map.h b/drivers/md/persistent-data/dm-space-map.h index 3e6d1153b7c4..f300aece842a 100644 --- a/drivers/md/persistent-data/dm-space-map.h +++ b/drivers/md/persistent-data/dm-space-map.h @@ -76,7 +76,8 @@ struct dm_space_map { static inline void dm_sm_destroy(struct dm_space_map *sm) { - sm->destroy(sm); + if (sm) + sm->destroy(sm); } static inline int dm_sm_extend(struct dm_space_map *sm, dm_block_t extra_blocks) diff --git a/drivers/md/persistent-data/dm-transaction-manager.c b/drivers/md/persistent-data/dm-transaction-manager.c index abe2c5dd0993..73f57977b2e3 100644 --- a/drivers/md/persistent-data/dm-transaction-manager.c +++ b/drivers/md/persistent-data/dm-transaction-manager.c @@ -197,6 +197,9 @@ EXPORT_SYMBOL_GPL(dm_tm_create_non_blocking_clone); void dm_tm_destroy(struct dm_transaction_manager *tm) { + if (!tm) + return; + if (!tm->is_clone) wipe_shadow_table(tm); diff --git a/include/linux/dm-bufio.h b/include/linux/dm-bufio.h index 45ba37aaf6b7..1f4316c33faf 100644 --- a/include/linux/dm-bufio.h +++ b/include/linux/dm-bufio.h @@ -31,6 +31,8 @@ dm_bufio_client_create(struct block_device *bdev, unsigned block_size, */ void dm_bufio_client_destroy(struct dm_bufio_client *c); +void dm_bufio_client_reset(struct dm_bufio_client *c); + /* * Set the sector range. * When this function is called, there must be no I/O in progress on the bufio -- 2.25.1

1 2

[PATCH OLK-5.10 0/3] locking/rwsem: Prevent potential lock starvation
by Yang Yingliang 06 Jun '23

06 Jun '23

Prevent potential lock starvation by read lock. Peter Zijlstra (1): locking/rwsem: Better collate rwsem_read_trylock() Waiman Long (2): locking/rwsem: Pass the current atomic count to rwsem_down_read_slowpath() locking/rwsem: Prevent potential lock starvation kernel/locking/rwsem.c | 56 ++++++++++++++++++++++++++++-------------- 1 file changed, 37 insertions(+), 19 deletions(-) -- 2.25.1

2 4

[PATCH OLK-5.10 0/4] icost bugfix
by Li Nan 06 Jun '23

06 Jun '23

This patch series fix iocost bug. Li Nan (1): blk-iocost: fix UAF in ioc_pd_free Yu Kuai (3): blk-iocost: track whether iocg is still online blk-iocost: don't throttle bio if iocg is offlined blk-iocost: dispatch all throttled bio in ioc_pd_offline block/blk-iocost.c | 57 ++++++++++++++++++++++++++++++++++++---------- 1 file changed, 45 insertions(+), 12 deletions(-) -- 2.39.2

1 4

[PATCH OLK-5.10] kobject: Fix slab-out-of-bounds in fill_kobj_path()
by Xia Fukun 06 Jun '23

06 Jun '23

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I697JG CVE: NA ---------------------------------------- In kobject_get_path(), if kobj->name is changed between calls get_kobj_path_length() and fill_kobj_path() and the length becomes longer, then fill_kobj_path() will have an out-of-bounds bug. The actual current problem occurs when the ixgbe probe. In ixgbe_mii_bus_init(), if the length of netdev->dev.kobj.name length becomes longer, out-of-bounds will occur. cpu0 cpu1 ixgbe_probe register_netdev(netdev) netdev_register_kobject device_add kobject_uevent // Sending ADD events systemd-udevd // rename netdev dev_change_name device_rename kobject_rename ixgbe_mii_bus_init | mdiobus_register | __mdiobus_register | device_register | device_add | kobject_uevent | kobject_get_path | len = get_kobj_path_length // old name | path = kzalloc(len, gfp_mask); | kobj->name = name; /* name length becomes * longer */ fill_kobj_path /* kobj path length is * longer than path, * resulting in out of * bounds when filling path */ This is the kasan report: ================================================================== BUG: KASAN: slab-out-of-bounds in fill_kobj_path+0x50/0xc0 Write of size 7 at addr ff1100090573d1fd by task kworker/28:1/673 Workqueue: events work_for_cpu_fn Call Trace: <TASK> dump_stack_lvl+0x34/0x48 print_address_description.constprop.0+0x86/0x1e7 print_report+0x36/0x4f kasan_report+0xad/0x130 kasan_check_range+0x35/0x1c0 memcpy+0x39/0x60 fill_kobj_path+0x50/0xc0 kobject_get_path+0x5a/0xc0 kobject_uevent_env+0x140/0x460 device_add+0x5c7/0x910 __mdiobus_register+0x14e/0x490 ixgbe_probe.cold+0x441/0x574 [ixgbe] local_pci_probe+0x78/0xc0 work_for_cpu_fn+0x26/0x40 process_one_work+0x3b6/0x6a0 worker_thread+0x368/0x520 kthread+0x165/0x1a0 ret_from_fork+0x1f/0x30 This reproducer triggers that bug: while: do rmmod ixgbe sleep 0.5 modprobe ixgbe sleep 0.5 When calling fill_kobj_path() to fill path, if the name length of kobj becomes longer, return failure and retry. This fixes the problem. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Wang Hai <wanghai38(a)huawei.com> Signed-off-by: Xia Fukun <xiafukun(a)huawei.com> --- lib/kobject.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/lib/kobject.c b/lib/kobject.c index ea53b30cf483..617a25ec355d 100644 --- a/lib/kobject.c +++ b/lib/kobject.c @@ -144,7 +144,7 @@ static int get_kobj_path_length(struct kobject *kobj) return length; } -static void fill_kobj_path(struct kobject *kobj, char *path, int length) +static int fill_kobj_path(struct kobject *kobj, char *path, int length) { struct kobject *parent; @@ -153,12 +153,16 @@ static void fill_kobj_path(struct kobject *kobj, char *path, int length) int cur = strlen(kobject_name(parent)); /* back up enough to print this name with '/' */ length -= cur; + if (length <= 0) + return -EINVAL; memcpy(path + length, kobject_name(parent), cur); *(path + --length) = '/'; } pr_debug("kobject: '%s' (%p): %s: path = '%s'\n", kobject_name(kobj), kobj, __func__, path); + + return 0; } /** @@ -173,13 +177,17 @@ char *kobject_get_path(struct kobject *kobj, gfp_t gfp_mask) char *path; int len; +retry: len = get_kobj_path_length(kobj); if (len == 0) return NULL; path = kzalloc(len, gfp_mask); if (!path) return NULL; - fill_kobj_path(kobj, path, len); + if (fill_kobj_path(kobj, path, len)) { + kfree(path); + goto retry; + } return path; } -- 2.17.1

2 1

[PATCH OLK-5.10] nbd: get config_lock before sock_shutdown
by Zhong Jinghua 06 Jun '23

06 Jun '23

hulk inclusion category: bugfix bugzilla: 188799, https://gitee.com/openeuler/kernel/issues/I79QWO CVE: NA ---------------------------------------- Config->socks in sock_shutdown may trigger a UAF problem. The reason is that sock_shutdown does not hold the config_lock, so that nbd_ioctl can release config->socks at this time. T0: NBD_SET_SOCK T1: NBD_DO_IT T0 T1 nbd_ioctl mutex_lock(&nbd->config_lock) // get lock __nbd_ioctl nbd_start_device_ioctl nbd_start_device mutex_unlock(&nbd->config_lock) // relase lock wait_event_interruptible (kill, enter sock_shutdown) sock_shutdown nbd_ioctl mutex_lock(&nbd->config_lock) // get lock __nbd_ioctl nbd_add_socket krealloc kfree(p) //config->socks is NULL nbd_sock *nsock = config->socks // error Fix it by moving config_lock up before sock_shutdown. Signed-off-by: Zhong Jinghua <zhongjinghua(a)huawei.com> --- drivers/block/nbd.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index fd20c1d9298c..389e633e32c5 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -1406,13 +1406,18 @@ static int nbd_start_device_ioctl(struct nbd_device *nbd, struct block_device *b mutex_unlock(&nbd->config_lock); ret = wait_event_interruptible(config->recv_wq, atomic_read(&config->recv_threads) == 0); + + /* + * recv_work in flush_workqueue will not get this lock, because nbd_open + * will hold nbd->config_refs + */ + mutex_lock(&nbd->config_lock); if (ret) { sock_shutdown(nbd); nbd_clear_que(nbd); } flush_workqueue(nbd->recv_workq); - mutex_lock(&nbd->config_lock); nbd_bdev_reset(bdev); /* user requested, ignore socket errors */ if (test_bit(NBD_RT_DISCONNECT_REQUESTED, &config->runtime_flags)) -- 2.31.1

2 1

[PATCH OLK-5.10 0/8] Fixed the accelerator capability register issue.
by Zhiqi Song 06 Jun '23

06 Jun '23

From: JiangShui Yang <yangjiangshui(a)h-partners.com> Misc fixes for Kunpeng accelerator drivers! Kai Ye (1): crypto: hisilicon/sec - misc cleanups Wenkai Lin (3): crypto: hisilicon/sec - remove unused parameter crypto: hisilicon/sec - fix for resource leak crypto: hisilicon/qm - add a function to set qm algs Zhiqi Song (4): crypto: hisilicon/qm - save capability registers in qm init process crypto: hisilicon/hpre - save capability registers in probe process crypto: hisilicon/sec2 - save capability registers in probe process crypto: hisilicon/zip - save capability registers in probe process drivers/crypto/hisilicon/hpre/hpre_main.c | 68 ++++++------- drivers/crypto/hisilicon/qm.c | 72 ++++++++++++-- drivers/crypto/hisilicon/sec2/sec.h | 7 ++ drivers/crypto/hisilicon/sec2/sec_crypto.c | 89 +++++++++-------- drivers/crypto/hisilicon/sec2/sec_main.c | 105 ++++++++++----------- drivers/crypto/hisilicon/zip/zip_main.c | 104 ++++++++++---------- include/linux/hisi_acc_qm.h | 12 +++ 7 files changed, 254 insertions(+), 203 deletions(-) -- 2.30.0

1 8

[PATCH v2 OLK-5.10 0/4] support ACPI for MPAM 2.0
by Yu Liao 06 Jun '23

06 Jun '23

This patch series support ACPI for MPAM 2.0. Erik Kaneda (1): ACPICA: ACPI 6.4: PPTT: add new version of subtable type 1 Hesham Almatary (1): ACPICA: Add support for Arm's MPAM ACPI table version 2 Yu Liao (2): ACPI / PPTT: Find PPTT processor node by cache id ACPI/MPAM: Adapt to Arm's MPAM ACPI table version 2 arch/arm64/kernel/mpam/mpam_device.c | 2 +- drivers/acpi/arm64/Makefile | 2 +- drivers/acpi/arm64/mpam.c | 19 ++- drivers/acpi/arm64/mpam_v2.c | 176 +++++++++++++++++++++++++++ drivers/acpi/pptt.c | 55 +++++++++ include/acpi/actbl2.h | 118 ++++++++++++++++++ include/linux/acpi.h | 5 + include/linux/arm_mpam.h | 2 +- 8 files changed, 373 insertions(+), 6 deletions(-) create mode 100644 drivers/acpi/arm64/mpam_v2.c -- 2.25.1

2 5

[OLK-5.10] kobject: Fix slab-out-of-bounds in fill_kobj_path()
by Xia Fukun 06 Jun '23

06 Jun '23

hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I697JG CVE: NA ---------------------------------------- In kobject_get_path(), if kobj->name is changed between calls get_kobj_path_length() and fill_kobj_path() and the length becomes longer, then fill_kobj_path() will have an out-of-bounds bug. The actual current problem occurs when the ixgbe probe. In ixgbe_mii_bus_init(), if the length of netdev->dev.kobj.name length becomes longer, out-of-bounds will occur. cpu0 cpu1 ixgbe_probe register_netdev(netdev) netdev_register_kobject device_add kobject_uevent // Sending ADD events systemd-udevd // rename netdev dev_change_name device_rename kobject_rename ixgbe_mii_bus_init | mdiobus_register | __mdiobus_register | device_register | device_add | kobject_uevent | kobject_get_path | len = get_kobj_path_length // old name | path = kzalloc(len, gfp_mask); | kobj->name = name; /* name length becomes * longer */ fill_kobj_path /* kobj path length is * longer than path, * resulting in out of * bounds when filling path */ This is the kasan report: ================================================================== BUG: KASAN: slab-out-of-bounds in fill_kobj_path+0x50/0xc0 Write of size 7 at addr ff1100090573d1fd by task kworker/28:1/673 Workqueue: events work_for_cpu_fn Call Trace: <TASK> dump_stack_lvl+0x34/0x48 print_address_description.constprop.0+0x86/0x1e7 print_report+0x36/0x4f kasan_report+0xad/0x130 kasan_check_range+0x35/0x1c0 memcpy+0x39/0x60 fill_kobj_path+0x50/0xc0 kobject_get_path+0x5a/0xc0 kobject_uevent_env+0x140/0x460 device_add+0x5c7/0x910 __mdiobus_register+0x14e/0x490 ixgbe_probe.cold+0x441/0x574 [ixgbe] local_pci_probe+0x78/0xc0 work_for_cpu_fn+0x26/0x40 process_one_work+0x3b6/0x6a0 worker_thread+0x368/0x520 kthread+0x165/0x1a0 ret_from_fork+0x1f/0x30 This reproducer triggers that bug: while: do rmmod ixgbe sleep 0.5 modprobe ixgbe sleep 0.5 When calling fill_kobj_path() to fill path, if the name length of kobj becomes longer, return failure and retry. This fixes the problem. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Wang Hai <wanghai38(a)huawei.com> Signed-off-by: Xia Fukun <xiafukun(a)huawei.com> --- lib/kobject.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/lib/kobject.c b/lib/kobject.c index ea53b30cf483..617a25ec355d 100644 --- a/lib/kobject.c +++ b/lib/kobject.c @@ -144,7 +144,7 @@ static int get_kobj_path_length(struct kobject *kobj) return length; } -static void fill_kobj_path(struct kobject *kobj, char *path, int length) +static int fill_kobj_path(struct kobject *kobj, char *path, int length) { struct kobject *parent; @@ -153,12 +153,16 @@ static void fill_kobj_path(struct kobject *kobj, char *path, int length) int cur = strlen(kobject_name(parent)); /* back up enough to print this name with '/' */ length -= cur; + if (length <= 0) + return -EINVAL; memcpy(path + length, kobject_name(parent), cur); *(path + --length) = '/'; } pr_debug("kobject: '%s' (%p): %s: path = '%s'\n", kobject_name(kobj), kobj, __func__, path); + + return 0; } /** @@ -173,13 +177,17 @@ char *kobject_get_path(struct kobject *kobj, gfp_t gfp_mask) char *path; int len; +retry: len = get_kobj_path_length(kobj); if (len == 0) return NULL; path = kzalloc(len, gfp_mask); if (!path) return NULL; - fill_kobj_path(kobj, path, len); + if (fill_kobj_path(kobj, path, len)) { + kfree(path); + goto retry; + } return path; } -- 2.17.1

1 0

[PATCH OLK-5.10] config: Disable CONFIG_EULER_FS by default
by Wei Li 06 Jun '23

06 Jun '23

hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I7BAJ0 -------------------------------- EulerFS was introduced as a technical preview feature in the 21.09 innovation version. Considering the current discontinuation of Intel Optane hardware and immature ecosystem, it has been decided to turn it off in the 22.03 LTS version. It will continue to evolve as an innovative feature in future innovation versions. Signed-off-by: Wei Li <liwei391(a)huawei.com> --- arch/arm64/configs/openeuler_defconfig | 2 +- arch/x86/configs/openeuler_defconfig | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/configs/openeuler_defconfig b/arch/arm64/configs/openeuler_defconfig index 46e5f9652dca..5ef45486a594 100644 --- a/arch/arm64/configs/openeuler_defconfig +++ b/arch/arm64/configs/openeuler_defconfig @@ -6465,7 +6465,7 @@ CONFIG_9P_FS=m CONFIG_9P_FSCACHE=y CONFIG_9P_FS_POSIX_ACL=y CONFIG_9P_FS_SECURITY=y -CONFIG_EULER_FS=m +# CONFIG_EULER_FS is not set CONFIG_NLS=y CONFIG_NLS_DEFAULT="utf8" CONFIG_NLS_CODEPAGE_437=y diff --git a/arch/x86/configs/openeuler_defconfig b/arch/x86/configs/openeuler_defconfig index 62a8e5c1af11..7f86be2502e8 100644 --- a/arch/x86/configs/openeuler_defconfig +++ b/arch/x86/configs/openeuler_defconfig @@ -7559,7 +7559,7 @@ CONFIG_CIFS_DFS_UPCALL=y # CONFIG_SMB_SERVER is not set # CONFIG_CODA_FS is not set # CONFIG_AFS_FS is not set -CONFIG_EULER_FS=m +# CONFIG_EULER_FS is not set CONFIG_NLS=y CONFIG_NLS_DEFAULT="utf8" CONFIG_NLS_CODEPAGE_437=y -- 2.25.1

2 1

[PATCH OLK-5.10] tcp: restrict net.ipv4.tcp_app_win
by YueHaibing 06 Jun '23

06 Jun '23

mainline inclusion from mainline-v6.3-rc7 commit dc5110c2d959c1707e12df5f792f41d90614adaa category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I6WB6P Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- UBSAN: shift-out-of-bounds in net/ipv4/tcp_input.c:555:23 shift exponent 255 is too large for 32-bit type 'int' CPU: 1 PID: 7907 Comm: ssh Not tainted 6.3.0-rc4-00161-g62bad54b26db-dirty #206 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x136/0x150 __ubsan_handle_shift_out_of_bounds+0x21f/0x5a0 tcp_init_transfer.cold+0x3a/0xb9 tcp_finish_connect+0x1d0/0x620 tcp_rcv_state_process+0xd78/0x4d60 tcp_v4_do_rcv+0x33d/0x9d0 __release_sock+0x133/0x3b0 release_sock+0x58/0x1b0 'maxwin' is int, shifting int for 32 or more bits is undefined behaviour. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: YueHaibing <yuehaibing(a)huawei.com> Reviewed-by: Eric Dumazet <edumazet(a)google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu(a)amazon.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: YueHaibing <yuehaibing(a)huawei.com> --- Documentation/networking/ip-sysctl.rst | 2 ++ net/ipv4/sysctl_net_ipv4.c | 5 ++++- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst index 0158dff63887..df26cf4110ef 100644 --- a/Documentation/networking/ip-sysctl.rst +++ b/Documentation/networking/ip-sysctl.rst @@ -272,6 +272,8 @@ tcp_app_win - INTEGER Reserve max(window/2^tcp_app_win, mss) of window for application buffer. Value 0 is special, it means that nothing is reserved. + Possible values are [0, 31], inclusive. + Default: 31 tcp_autocorking - BOOLEAN diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index dee47ef05655..029f46584203 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -37,6 +37,7 @@ static int ip_local_port_range_min[] = { 1, 1 }; static int ip_local_port_range_max[] = { 65535, 65535 }; static int tcp_adv_win_scale_min = -31; static int tcp_adv_win_scale_max = 31; +static int tcp_app_win_max = 31; static int tcp_min_snd_mss_min = TCP_MIN_SND_MSS; static int tcp_min_snd_mss_max = 65535; static int ip_privileged_port_min; @@ -1156,7 +1157,9 @@ static struct ctl_table ipv4_net_table[] = { .data = &init_net.ipv4.sysctl_tcp_app_win, .maxlen = sizeof(int), .mode = 0644, - .proc_handler = proc_dointvec + .proc_handler = proc_dointvec_minmax, + .extra1 = SYSCTL_ZERO, + .extra2 = &tcp_app_win_max, }, { .procname = "tcp_adv_win_scale", -- 2.34.1

2 1

[PATCH OLK-5.10 0/2] ubi: Fix deadlock caused by recursively holding work_sem
by ZhaoLong Wang 06 Jun '23

06 Jun '23

Fix deadlock caused by recursively holding work_sem Lee Jones (1): mtd: ubi: wl: Fix a couple of kernel-doc issues ZhaoLong Wang (1): ubi: Fix deadlock caused by recursively holding work_sem drivers/mtd/ubi/wl.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) -- 2.31.1

2 3

[PATCH openEuler-22.03-LTS v2 0/2] xfs: missing lts patchs
by Long Li 06 Jun '23

06 Jun '23

Dave Chinner (2): xfs: reorder iunlink remove operation in xfs_ifree xfs: validate inode fork size against fork format fs/xfs/libxfs/xfs_inode_buf.c | 35 ++++++++++++++++++++++++++--------- fs/xfs/xfs_inode.c | 22 ++++++++++++---------- 2 files changed, 38 insertions(+), 19 deletions(-) -- 2.31.1

2 3

[PATCH OLK-5.10 v2 00/18] xfs: rework feature flags
by Long Li 06 Jun '23

06 Jun '23

2 19

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