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[PATCH 1/3] net: hns3: modify the sensitive words
by Yang Yingliang 30 Sep '20

30 Sep '20

From: Shengzui You <youshengzui(a)huawei.com> driver inclusion category: bugfix bugzilla: NA CVE: NA ----------------------------------- Reviewed-by: Weiwei Deng <dengweiwei(a)huawei.com> Reviewed-by: Zhaohui Zhong <zhongzhaohui(a)huawei.com> Reviewed-by: Junxin Chen <chenjunxin1(a)huawei.com> Signed-off-by: Shengzui You <youshengzui(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- .../hisilicon/hns3/hns-customer/hns3pf/hclge_main_it.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns-customer/hns3pf/hclge_main_it.h b/drivers/net/ethernet/hisilicon/hns3/hns-customer/hns3pf/hclge_main_it.h index cd1636e6dd65..343e036412d4 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns-customer/hns3pf/hclge_main_it.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns-customer/hns3pf/hclge_main_it.h @@ -36,14 +36,14 @@ typedef void (*nic_event_fn_t) (struct net_device *netdev, enum hnae3_event_type_custom); /** - * nic_register_event - register for nic event listening + * nic_register_event - register for nic event handling * @event_call: nic event handler * return 0 - success , negative - fail */ int nic_register_event(nic_event_fn_t event_call); /** - * nic_unregister_event - quit nic event listening + * nic_unregister_event - quit nic event handling * return 0 - success , negative - fail */ int nic_unregister_event(void); -- 2.25.1

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[PATCH kernel-5.5] riscv/kvm: Add Linux-syscall-note at kvm.h
by Yipeng Yin 29 Sep '20

29 Sep '20

euleros inclusion category: bugfix bugzilla: NA CVE: NA It will raise 'missing "WITH Linux-syscall-note" for SPDX-License-Identifier' when make headers_install. this patch fix it. Link: https://gitee.com/openeuler/kernel/issues/I1WZL5 Signed-off-by: Yipeng Yin <yinyipeng1(a)huawei.com> Reviewed-by: Xie XiuQi <xiexiuqi(a)huawei.com> --- arch/riscv/include/uapi/asm/kvm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h index f4274c2e5..65cd00654 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -1,4 +1,4 @@ -/* SPDX-License-Identifier: GPL-2.0 */ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * Copyright (C) 2019 Western Digital Corporation or its affiliates. * -- 2.19.1

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[PATCH] block: allow for_each_bvec to support zero len bvec
by Yang Yingliang 29 Sep '20

29 Sep '20

From: Ming Lei <ming.lei(a)redhat.com> stable inclusion from linux-4.19.144 commit b48bcb664b657ae94b19c0728978c88e012f7a37 CVE: CVE-2020-25641 -------------------------------- commit 7e24969022cbd61ddc586f14824fc205661bb124 upstream. Block layer usually doesn't support or allow zero-length bvec. Since commit 1bdc76aea115 ("iov_iter: use bvec iterator to implement iterate_bvec()"), iterate_bvec() switches to bvec iterator. However, Al mentioned that 'Zero-length segments are not disallowed' in iov_iter. Fixes for_each_bvec() so that it can move on after seeing one zero length bvec. Fixes: 1bdc76aea115 ("iov_iter: use bvec iterator to implement iterate_bvec()") Reported-by: syzbot <syzbot+61acc40a49a3e46e25ea(a)syzkaller.appspotmail.com> Signed-off-by: Ming Lei <ming.lei(a)redhat.com> Tested-by: Tetsuo Handa <penguin-kernel(a)i-love.sakura.ne.jp> Cc: Al Viro <viro(a)zeniv.linux.org.uk> Cc: Matthew Wilcox <willy(a)infradead.org> Cc: <stable(a)vger.kernel.org> Link: https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg2262077.html Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> Reviewed-by: Jason Yan <yanaijie(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- include/linux/bvec.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/include/linux/bvec.h b/include/linux/bvec.h index fe7a22dd133b..bc1f16e9f3f4 100644 --- a/include/linux/bvec.h +++ b/include/linux/bvec.h @@ -119,11 +119,18 @@ static inline bool bvec_iter_rewind(const struct bio_vec *bv, return true; } +static inline void bvec_iter_skip_zero_bvec(struct bvec_iter *iter) +{ + iter->bi_bvec_done = 0; + iter->bi_idx++; +} + #define for_each_bvec(bvl, bio_vec, iter, start) \ for (iter = (start); \ (iter).bi_size && \ ((bvl = bvec_iter_bvec((bio_vec), (iter))), 1); \ - bvec_iter_advance((bio_vec), &(iter), (bvl).bv_len)) + (bvl).bv_len ? (void)bvec_iter_advance((bio_vec), &(iter), \ + (bvl).bv_len) : bvec_iter_skip_zero_bvec(&(iter))) /* for iterating one bio from start to end */ #define BVEC_ITER_ALL_INIT (struct bvec_iter) \ -- 2.25.1

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[PATCH 1/6] loop: Report EOPNOTSUPP properly
by Yang Yingliang 28 Sep '20

28 Sep '20

From: Evan Green <evgreen(a)chromium.org> mainline inclusion from mainline-v5.7-rc1 commit 8cd55087dc45b2e1a73ed2a197cbf405f32deb08 category: bugfix bugzilla: 38877 CVE: NA Properly plumb out EOPNOTSUPP from loop driver operations, which may get returned when for instance a discard operation is attempted but not supported by the underlying block device. Before this change, everything was reported in the log as an I/O error, which is scary and not helpful in debugging. Signed-off-by: Evan Green <evgreen(a)chromium.org> Reviewed-by: Gwendal Grignou <gwendal(a)chromium.org> Reviewed-by: Bart Van Assche <bvanassche(a)acm.org> Signed-off-by: Andrzej Pietrasiewicz <andrzej.p(a)collabora.com> Reviewed-by: Christoph Hellwig <hch(a)lst.de> Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Signed-off-by: Luo Meng <luomeng12(a)huawei.com> Reviewed-by: Hou Tao <houtao1(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- drivers/block/loop.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/block/loop.c b/drivers/block/loop.c index da68c42aed68..19b64ca8c4e3 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -461,7 +461,7 @@ static void lo_complete_rq(struct request *rq) if (!cmd->use_aio || cmd->ret < 0 || cmd->ret == blk_rq_bytes(rq) || req_op(rq) != REQ_OP_READ) { if (cmd->ret < 0) - ret = BLK_STS_IOERR; + ret = errno_to_blk_status(cmd->ret); goto end_io; } @@ -1924,7 +1924,10 @@ static void loop_handle_cmd(struct loop_cmd *cmd) failed: /* complete non-aio request */ if (!cmd->use_aio || ret) { - cmd->ret = ret ? -EIO : 0; + if (ret == -EOPNOTSUPP) + cmd->ret = ret; + else + cmd->ret = ret ? -EIO : 0; blk_mq_complete_request(rq); } } -- 2.25.1

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[PATCH 00/38] backport stable-4.19.148
by Yang Yingliang 28 Sep '20

28 Sep '20

Dan Carpenter (1): hdlc_ppp: add range checks in ppp_cp_parse_cr() David Ahern (1): ipv4: Update exception handling for multipath routes via same device Dmitry Golovin (1): x86/boot: kbuild: allow readelf executable to be specified Edwin Peer (1): bnxt_en: return proper error codes in bnxt_show_temp Eric Dumazet (3): ipv6: avoid lockdep issue in fib6_del() net: qrtr: check skb_put_padto() return value net: add __must_check to skb_put_padto() Fangrui Song (1): Documentation/llvm: fix the name of llvm-size Florian Fainelli (1): net: phy: Avoid NPD upon phy_detach() when driver is unbound Ganji Aravind (1): cxgb4: Fix offset when clearing filter byte counters Greg Kroah-Hartman (1): Linux 4.19.148 Jakub Kicinski (1): nfp: use correct define to return NONE fec Linus Walleij (1): net: dsa: rtl8366: Properly clear member config Lukas Wunner (1): serial: 8250: Avoid error message on reprobe Mark Gray (1): geneve: add transport ports in route lookup for geneve Mark Salyzyn (1): af_key: pfkey_dump needs parameter validation Masahiro Yamada (5): net: wan: wanxl: use allow to pass CROSS_COMPILE_M68k for rebuilding firmware net: wan: wanxl: use $(M68KCC) instead of $(M68KAS) for rebuilding firmware kbuild: remove AS variable kbuild: replace AS=clang with LLVM_IAS=1 kbuild: support LLVM=1 to switch the default tools to Clang/LLVM Michael Chan (1): bnxt_en: Protect bnxt_set_eee() and bnxt_set_pauseparam() with mutex. Muchun Song (1): kprobes: fix kill kprobe which has been marked as gone Necip Fazil Yildiran (1): net: ipv6: fix kconfig dependency warning for IPV6_SEG6_HMAC Nick Desaulniers (2): MAINTAINERS: add CLANG/LLVM BUILD SUPPORT info Documentation/llvm: add documentation on building w/ Clang/LLVM Peilin Ye (1): tipc: Fix memory leak in tipc_group_create_member() Petr Machata (1): net: DCB: Validate DCB_ATTR_DCB_BUFFER argument Priyaranjan Jha (2): tcp_bbr: refactor bbr_target_cwnd() for general inflight provisioning tcp_bbr: adapt cwnd based on ack aggregation estimation Ralph Campbell (1): mm/thp: fix __split_huge_pmd_locked() for migration PMD Rustam Kovhaev (1): KVM: fix memory leak in kvm_io_bus_unregister_dev() Tetsuo Handa (1): tipc: fix shutdown() of connection oriented socket Vasily Gorbik (1): kbuild: add OBJSIZE variable for the size tool Wei Wang (1): ip: fix tos reflection in ack and reset packets Xin Long (1): tipc: use skb_unshare() instead in tipc_buf_append() Xunlei Pang (1): mm: memcg: fix memcg reclaim soft lockup Yunsheng Lin (1): net: sch_generic: aviod concurrent reset and enqueue op for lockless qdisc Documentation/kbuild/llvm.rst | 87 +++++++++ MAINTAINERS | 9 + Makefile | 38 +++- arch/x86/boot/compressed/Makefile | 2 +- drivers/net/dsa/rtl8366.c | 20 +- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 19 +- .../net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 31 +-- .../net/ethernet/chelsio/cxgb4/cxgb4_filter.c | 9 +- .../ethernet/netronome/nfp/nfp_net_ethtool.c | 4 +- drivers/net/geneve.c | 37 +++- drivers/net/phy/phy_device.c | 3 +- drivers/net/wan/Kconfig | 2 +- drivers/net/wan/Makefile | 12 +- drivers/net/wan/hdlc_ppp.c | 16 +- drivers/tty/serial/8250/8250_core.c | 11 +- include/linux/skbuff.h | 7 +- include/net/inet_connection_sock.h | 4 +- kernel/kprobes.c | 9 +- mm/huge_memory.c | 40 ++-- mm/vmscan.c | 8 + net/dcb/dcbnl.c | 8 + net/ipv4/ip_output.c | 3 +- net/ipv4/route.c | 13 +- net/ipv4/tcp_bbr.c | 180 ++++++++++++++++-- net/ipv6/Kconfig | 1 + net/ipv6/ip6_fib.c | 13 +- net/key/af_key.c | 7 + net/qrtr/qrtr.c | 20 +- net/sched/sch_generic.c | 49 +++-- net/tipc/group.c | 14 +- net/tipc/msg.c | 3 +- net/tipc/socket.c | 5 +- tools/objtool/Makefile | 6 + virt/kvm/kvm_main.c | 21 +- 34 files changed, 550 insertions(+), 161 deletions(-) create mode 100644 Documentation/kbuild/llvm.rst -- 2.25.1

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【议题收集】【Meeting Notice】openEuler kernel sig meeting Time: 2020-10-16 10:00-12:00
by Xie XiuQi 28 Sep '20

28 Sep '20

openEuler kernel sig meeting 定于 2020-10-16 10:00-12:00 召开，欢迎回复邮件申报议题。 (受十一假期影响，中间跳过一次例会，如有问题需要交流，可以先发邮件列表） --- 会议信息 --- 会议链接：https://zoom.us/j/94156903933 会议 ID : 94156903933 --- 会议纪要归档 --- Meeting Record 20200918： https://gitee.com/openeuler/kernel/issues/I1WGN0

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[PATCH kernel-5.5] riscv/kvm: Add Linux-syscall-note at kvm.h
by Yipeng Yin 28 Sep '20

28 Sep '20

euleros inclusion category: bugfix bugzilla: NA CVE: NA It will raise 'missing "WITH Linux-syscall-note" for SPDX-License-Identifier' when make headers_install. this patch fix it. Link: https://gitee.com/openeuler/kernel/issues/I1WZL5 Signed-off-by: Yipeng Yin <yinyipeng1(a)huawei.com> --- arch/riscv/include/uapi/asm/kvm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/riscv/include/uapi/asm/kvm.h b/arch/riscv/include/uapi/asm/kvm.h index f4274c2e5..65cd00654 100644 --- a/arch/riscv/include/uapi/asm/kvm.h +++ b/arch/riscv/include/uapi/asm/kvm.h @@ -1,4 +1,4 @@ -/* SPDX-License-Identifier: GPL-2.0 */ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * Copyright (C) 2019 Western Digital Corporation or its affiliates. * -- 2.19.1

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[PATCH openEuler-1.0-LTS 00/13] steal tasks to improve CPU utilization
by Wei Li 27 Sep '20

27 Sep '20

Steal tasks to improve CPU utilization, backported from branch 'kernel-4.19'. Cheng Jian (3): disable stealing by default sched/fair: introduce SCHED_STEAL config: enable CONFIG_SCHED_STEAL by default Steve Sistare (10): sched: Provide sparsemask, a reduced contention bitmap sched/topology: Provide hooks to allocate data shared per LLC sched/topology: Provide cfs_overload_cpus bitmap sched/fair: Dynamically update cfs_overload_cpus sched/fair: Hoist idle_stamp up from idle_balance sched/fair: Generalize the detach_task interface sched/fair: Provide can_migrate_task_llc sched/fair: Steal work from an overloaded CPU when CPU goes idle sched/fair: disable stealing if too many NUMA nodes sched/fair: Provide idle search schedstats arch/arm64/configs/euleros_defconfig | 1 + arch/arm64/configs/hulk_defconfig | 1 + arch/arm64/configs/openeuler_defconfig | 1 + arch/arm64/configs/storage_ci_defconfig | 1 + arch/arm64/configs/syzkaller_defconfig | 1 + arch/x86/configs/hulk_defconfig | 1 + arch/x86/configs/openeuler_defconfig | 1 + arch/x86/configs/storage_ci_defconfig | 1 + include/linux/sched/topology.h | 3 + init/Kconfig | 15 + kernel/sched/core.c | 35 ++- kernel/sched/fair.c | 367 ++++++++++++++++++++++-- kernel/sched/features.h | 8 + kernel/sched/sched.h | 20 ++ kernel/sched/sparsemask.h | 210 ++++++++++++++ kernel/sched/stats.c | 15 + kernel/sched/stats.h | 20 ++ kernel/sched/topology.c | 141 ++++++++- 18 files changed, 810 insertions(+), 32 deletions(-) create mode 100644 kernel/sched/sparsemask.h -- 2.17.1

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[PATCH 00/50] backport stable-4.19.147
by Yang Yingliang 24 Sep '20

24 Sep '20

Adam Borowski (1): x86/defconfig: Enable CONFIG_USB_XHCI_HCD=y Alexey Kardashevskiy (1): powerpc/dma: Fix dma_map_ops::get_required_mask Arvind Sankar (1): x86/boot/compressed: Disable relocation relaxation Bob Peterson (1): gfs2: initialize transaction tr_ailX_lists earlier Christophe JAILLET (1): clk: davinci: Use the correct size when allocating memory Chuck Lever (1): NFS: Zero-stateid SETATTR should first return delegation Daniel Mack (1): dsa: Allow forwarding of redirected IGMP traffic David Milburn (2): nvme-fc: cancel async events before freeing event struct nvme-rdma: cancel async events before freeing event struct Dinghao Liu (1): scsi: pm8001: Fix memleak in pm8001_exec_internal_task_abort Evan Nimmo (1): i2c: algo: pca: Reapply i2c bus settings after reset Gabriel Krisman Bertazi (1): f2fs: Return EOF on unaligned end of file DIO read Greg Kroah-Hartman (2): Revert "ALSA: hda - Fix silent audio output and corrupted input on MSI X570-A PRO" Linux 4.19.147 Gustav Wiklander (1): spi: Fix memory leak on splited transfers Haiyang Zhang (1): hv_netvsc: Remove "unlikely" from netvsc_select_queue Hans de Goede (1): Input: i8042 - add Entroware Proteus EL07R4 to nomux and reset lists Huacai Chen (1): KVM: MIPS: Change the definition of kvm type J. Bruce Fields (1): SUNRPC: stop printk reading past end of string James Smart (1): scsi: lpfc: Fix FLOGI/PLOGI receive race condition in pt2pt discovery Javed Hasan (1): scsi: libfc: Fix for double free() Jiri Olsa (1): perf test: Fix the "signal" test inline assembly Laurent Pinchart (1): rapidio: Replace 'select' DMAENGINES 'with depends on' Miaohe Lin (1): net: handle the return value of pskb_carve_frag_list() correctly Michael Kelley (1): Drivers: hv: vmbus: Add timeout to vmbus_wait_for_unload Namhyung Kim (1): perf test: Free formats for perf pmu parse test Naresh Kumar PBS (1): RDMA/bnxt_re: Restrict the max_gids to 256 Nathan Chancellor (1): clk: rockchip: Fix initialization of mux_pll_src_4plls_p Olga Kornievskaia (1): NFSv4.1 handle ERR_DELAY error reclaiming locking state on delegation recall Oliver Neukum (2): USB: UAS: fix disconnect by unplugging a hub usblp: fix race between disconnect() and read() Penghao (1): USB: quirks: Add USB_QUIRK_IGNORE_REMOTE_WAKEUP quirk for BYD zhaoxin notebook Quentin Perret (1): ehci-hcd: Move include to keep CRC stable Quinn Tran (3): scsi: qla2xxx: Update rscn_rcvd field to more meaningful scan_needed scsi: qla2xxx: Move rport registration out of internal work_list scsi: qla2xxx: Reduce holding sess_lock to prevent CPU lock-up Sahitya Tummala (1): f2fs: fix indefinite loop scanning for free nid Stafford Horne (1): openrisc: Fix cache API compile issue when not inlining Stephan Gerhold (1): ASoC: qcom: Set card->owner to avoid warnings Sunghyun Jin (1): percpu: fix first chunk size calculation for populated bitmap Tetsuo Handa (1): fbcon: Fix user font detection test at fbcon_resize(). Thomas Bogendoerfer (2): MIPS: SNI: Fix MIPS_L1_CACHE_SHIFT MIPS: SNI: Fix spurious interrupts Tobias Diedrich (1): serial: 8250_pci: Add Realtek 816a and 816b Vincent Huang (1): Input: trackpoint - add new trackpoint variant IDs Vincent Whitchurch (2): regulator: pwm: Fix machine constraints application spi: spi-loopback-test: Fix out-of-bounds read Volker Rümelin (1): i2c: i801: Fix resume bug Yu Kuai (2): drm/mediatek: Add exception handing in mtk_drm_probe() if component init fail drm/mediatek: Add missing put_device() call in mtk_hdmi_dt_parse_pdata() Makefile | 2 +- arch/mips/Kconfig | 1 + arch/mips/kvm/mips.c | 2 + arch/mips/sni/a20r.c | 9 +- arch/openrisc/mm/cache.c | 2 +- arch/powerpc/kernel/dma-iommu.c | 3 +- arch/x86/boot/compressed/Makefile | 2 + arch/x86/configs/i386_defconfig | 1 + arch/x86/configs/x86_64_defconfig | 1 + drivers/clk/davinci/pll.c | 2 +- drivers/clk/rockchip/clk-rk3228.c | 2 +- drivers/gpu/drm/mediatek/mtk_drm_drv.c | 7 +- drivers/gpu/drm/mediatek/mtk_hdmi.c | 26 ++++-- drivers/hv/channel_mgmt.c | 7 +- drivers/i2c/algos/i2c-algo-pca.c | 35 +++++--- drivers/i2c/busses/i2c-i801.c | 21 +++-- drivers/infiniband/hw/bnxt_re/qplib_sp.c | 2 +- drivers/infiniband/hw/bnxt_re/qplib_sp.h | 1 + drivers/input/mouse/trackpoint.c | 10 ++- drivers/input/mouse/trackpoint.h | 10 ++- drivers/input/serio/i8042-x86ia64io.h | 16 ++++ drivers/net/hyperv/netvsc_drv.c | 2 +- drivers/nvme/host/fc.c | 1 + drivers/nvme/host/rdma.c | 1 + drivers/rapidio/Kconfig | 2 +- drivers/regulator/pwm-regulator.c | 2 +- drivers/scsi/libfc/fc_disc.c | 2 - drivers/scsi/lpfc/lpfc_els.c | 4 +- drivers/scsi/pm8001/pm8001_sas.c | 2 +- drivers/scsi/qla2xxx/qla_def.h | 10 ++- drivers/scsi/qla2xxx/qla_gbl.h | 5 +- drivers/scsi/qla2xxx/qla_gs.c | 30 ++++--- drivers/scsi/qla2xxx/qla_init.c | 101 +++++++++++++++++------ drivers/scsi/qla2xxx/qla_os.c | 29 ++++--- drivers/scsi/qla2xxx/qla_target.c | 85 +++++++++++++++---- drivers/spi/spi-loopback-test.c | 2 +- drivers/spi/spi.c | 9 +- drivers/tty/serial/8250/8250_pci.c | 11 +++ drivers/usb/class/usblp.c | 5 ++ drivers/usb/core/quirks.c | 4 + drivers/usb/host/ehci-hcd.c | 1 + drivers/usb/host/ehci-hub.c | 1 - drivers/usb/storage/uas.c | 14 +++- drivers/video/fbdev/core/fbcon.c | 2 +- fs/f2fs/data.c | 3 + fs/f2fs/node.c | 3 + fs/gfs2/glops.c | 2 + fs/gfs2/log.c | 2 - fs/gfs2/trans.c | 2 + fs/nfs/nfs4proc.c | 11 ++- include/linux/i2c-algo-pca.h | 15 ++++ include/uapi/linux/kvm.h | 5 +- mm/percpu.c | 2 +- net/core/skbuff.c | 10 ++- net/dsa/tag_edsa.c | 37 ++++++++- net/sunrpc/rpcb_clnt.c | 4 +- sound/pci/hda/patch_realtek.c | 1 - sound/soc/qcom/apq8016_sbc.c | 1 + sound/soc/qcom/apq8096.c | 1 + sound/soc/qcom/sdm845.c | 1 + sound/soc/qcom/storm.c | 1 + tools/perf/tests/bp_signal.c | 5 +- tools/perf/tests/pmu.c | 1 + tools/perf/util/pmu.c | 11 +++ tools/perf/util/pmu.h | 1 + 65 files changed, 457 insertions(+), 149 deletions(-) -- 2.25.1

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[PATCH 1/5] loop: Report EOPNOTSUPP properly
by Yang Yingliang 24 Sep '20

24 Sep '20

From: Evan Green <evgreen(a)chromium.org> mainline inclusion from mainline-v5.7-rc1 commit 8cd55087dc45b2e1a73ed2a197cbf405f32deb08 category: bugfix bugzilla: 38877 CVE: NA Properly plumb out EOPNOTSUPP from loop driver operations, which may get returned when for instance a discard operation is attempted but not supported by the underlying block device. Before this change, everything was reported in the log as an I/O error, which is scary and not helpful in debugging. Signed-off-by: Evan Green <evgreen(a)chromium.org> Reviewed-by: Gwendal Grignou <gwendal(a)chromium.org> Reviewed-by: Bart Van Assche <bvanassche(a)acm.org> Signed-off-by: Andrzej Pietrasiewicz <andrzej.p(a)collabora.com> Reviewed-by: Christoph Hellwig <hch(a)lst.de> Signed-off-by: Jens Axboe <axboe(a)kernel.dk> Signed-off-by: Luo Meng <luomeng12(a)huawei.com> Reviewed-by: Hou Tao <houtao1(a)huawei.com> Signed-off-by: Yang Yingliang <yangyingliang(a)huawei.com> --- drivers/block/loop.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 19042b42a8ba..d0687e90e5d4 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -461,7 +461,7 @@ static void lo_complete_rq(struct request *rq) if (!cmd->use_aio || cmd->ret < 0 || cmd->ret == blk_rq_bytes(rq) || req_op(rq) != REQ_OP_READ) { if (cmd->ret < 0) - ret = BLK_STS_IOERR; + ret = errno_to_blk_status(cmd->ret); goto end_io; } @@ -1927,7 +1927,10 @@ static void loop_handle_cmd(struct loop_cmd *cmd) failed: /* complete non-aio request */ if (!cmd->use_aio || ret) { - cmd->ret = ret ? -EIO : 0; + if (ret == -EOPNOTSUPP) + cmd->ret = ret; + else + cmd->ret = ret ? -EIO : 0; blk_mq_complete_request(rq); } } -- 2.25.1

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