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linux/drivers/md
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Chia-Ming Chang 7f9f7c6974 md/raid5: fix soft lockup in retry_aligned_read() 
When retry_aligned_read() encounters an overlapped stripe, it releases
the stripe via raid5_release_stripe() which puts it on the lockless
released_stripes llist. In the next raid5d loop iteration,
release_stripe_list() drains the stripe onto handle_list (since
STRIPE_HANDLE is set by the original IO), but retry_aligned_read()
runs before handle_active_stripes() and removes the stripe from
handle_list via find_get_stripe() -> list_del_init(). This prevents
handle_stripe() from ever processing the stripe to resolve the
overlap, causing an infinite loop and soft lockup.

Fix this by using __release_stripe() with temp_inactive_list instead
of raid5_release_stripe() in the failure path, so the stripe does not
go through the released_stripes llist. This allows raid5d to break out
of its loop, and the overlap will be resolved when the stripe is
eventually processed by handle_stripe().

Fixes: 773ca82fa1 ("raid5: make release_stripe lockless")
Cc: stable@vger.kernel.org
Signed-off-by: FengWei Shih <dannyshih@synology.com>
Signed-off-by: Chia-Ming Chang <chiamingc@synology.com>
Link: https://lore.kernel.org/linux-raid/20260402061406.455755-1-chiamingc@synology.com/
Signed-off-by: Yu Kuai <yukuai@fnnas.com>
History 2026-04-07 15:13:52 +08:00
..
bcache bcache: fix uninitialized closure object 2026-04-03 05:11:08 -06:00
dm-pcache Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
dm-vdo dm vdo encodings: clean up header and version functions 2026-01-27 17:00:25 +01:00
persistent-data Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-audit.c dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-audit.h dm: introduce audit event module for device mapper 2021-10-27 16:53:47 -04:00
dm-bio-prison-v1.c Convert 'alloc_flex' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-bio-prison-v1.h dm cache: Remove unused functions in bio-prison-v1 2024-11-20 11:38:04 +01:00
dm-bio-prison-v2.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-bio-prison-v2.h dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
dm-bio-record.h dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-bufio.c dm-bufio: avoid redundant buffer_tree lookups 2026-01-19 15:39:21 +01:00
dm-builtin.c dm: adjust EXPORT_SYMBOL() to follow functions immediately 2023-02-14 14:23:07 -05:00
dm-cache-background-tracker.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-cache-background-tracker.h dm cache: Remove unused btracker_nr_writebacks_queued 2024-11-20 11:38:04 +01:00
dm-cache-block-types.h dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-cache-metadata.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-cache-metadata.h dm cache: Remove unused dm_cache_size 2024-11-20 11:38:04 +01:00
dm-cache-policy-internal.h dm: add missing empty lines 2023-02-14 14:23:06 -05:00
dm-cache-policy-smq.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-cache-policy.c dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
dm-cache-policy.h dm: address indent/space issues 2023-02-14 14:23:06 -05:00
dm-cache-target.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-clone-metadata.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-clone-metadata.h dm clone metadata: Fix return type of dm_clone_nr_of_hydrated_regions() 2020-03-27 14:42:51 -04:00
dm-clone-target.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-core.h Revert "dm: fix a race condition in retrieve_deps" 2026-01-28 15:44:02 +01:00
dm-crypt.c Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
dm-delay.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-dust.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-ebs-target.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-era-target.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-exception-store.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-exception-store.h dm-snapshot: fix 'scheduling while atomic' on real-time kernels 2025-12-10 19:28:22 +01:00
dm-flakey.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-ima.c dm-ima: drop a useless argument 2025-08-19 11:12:50 +02:00
dm-ima.h dm: avoid inline filenames 2023-02-14 14:23:07 -05:00
dm-init.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-integrity.c Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
dm-io-rewind.c dm: avoid void function return statements 2023-02-14 14:23:07 -05:00
dm-io-tracker.h dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-io.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-ioctl.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-kcopyd.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-linear.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-log-userspace-base.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-log-userspace-transfer.c dm: avoid split of quoted strings where possible 2023-02-14 14:23:07 -05:00
dm-log-userspace-transfer.h dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-log-writes.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-log.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-mpath.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-mpath.h dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
dm-path-selector.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-path-selector.h dm-mpath: make dm_unregister_path_selector return void 2025-06-30 16:20:04 +02:00
dm-ps-historical-service-time.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-ps-io-affinity.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-ps-queue-length.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-ps-round-robin.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-ps-service-time.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-raid.c Convert 'alloc_flex' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-raid1.c Convert 'alloc_flex' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-region-hash.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-rq.c - dm-verity: various optimizations and fixes related to forward error 2026-02-11 17:04:21 -08:00
dm-rq.h dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
dm-snap-persistent.c Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
dm-snap-transient.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-snap.c Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
dm-stats.c Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
dm-stats.h dm stats: check for and propagate alloc_percpu failure 2023-03-16 13:37:06 -04:00
dm-stripe.c Convert 'alloc_flex' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-switch.c Convert 'alloc_flex' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-sysfs.c dm: sysfs: use sysfs_emit() in dm-sysfs.c 2025-10-20 15:22:21 +02:00
dm-table.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-target.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-thin-metadata.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-thin-metadata.h dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-thin.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-uevent.c dm: avoid spaces before function arguments or in favour of tabs 2023-02-14 14:23:06 -05:00
dm-uevent.h dm: fix undue/missing spaces 2023-02-14 14:23:06 -05:00
dm-unstripe.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-verity-fec.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-verity-fec.h dm-verity: make verity_fec_is_enabled() an inline function 2026-01-04 20:35:32 +01:00
dm-verity-loadpin.c dm: verity-loadpin: Add NULL pointer check for 'bdev' parameter 2023-06-28 10:43:04 -07:00
dm-verity-target.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-verity-verify-sig.c dm-verity: fix section mismatch error 2026-01-21 14:06:23 +01:00
dm-verity-verify-sig.h dm-verity: fix section mismatch error 2026-01-21 14:06:23 +01:00
dm-verity.h dm-verity: consolidate the BH and normal work structs 2026-01-14 13:18:08 +01:00
dm-writecache.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-zero.c dm: always manage discard support in terms of max_hw_discard_sectors 2024-05-20 15:51:19 -04:00
dm-zone.c dm: use READ_ONCE in dm_blk_report_zones 2026-01-14 13:12:21 +01:00
dm-zoned-metadata.c Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
dm-zoned-reclaim.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-zoned-target.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
dm-zoned.h dm: zoned: Remove unused functions 2024-11-20 11:38:04 +01:00
dm.c dm: use bio_clone_blkg_association 2026-01-26 15:36:22 +01:00
dm.h block: introduce disk_report_zone() 2025-11-05 08:07:21 -07:00
Kconfig dm-verity: allow REED_SOLOMON to be 'm' if DM_VERITY is 'm' 2026-01-04 20:35:32 +01:00
Makefile dm docs: fix typos 2025-10-03 18:48:02 -07:00
md-autodetect.c md: reintroduce md-linear 2025-01-13 07:36:29 -08:00
md-bitmap.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
md-bitmap.h md/md-llbitmap: introduce new lockless bitmap 2025-09-06 17:27:51 +08:00
md-cluster.c Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses 2026-02-22 08:26:33 -08:00
md-cluster.h md: switch md-cluster to use md_submodle_head 2025-03-05 00:28:39 +08:00
md-linear.c Convert 'alloc_flex' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
md-llbitmap.c md/md-llbitmap: optimize initial sync with write_zeroes_unmap support 2026-04-07 13:09:22 +08:00
md.c md: wake raid456 reshape waiters before suspend 2026-04-07 13:09:22 +08:00
md.h md/raid1: serialize overlap io for writemostly disk 2026-04-07 13:09:22 +08:00
raid0.c md/raid0: use kvzalloc/kvfree for strip_zone and devlist allocations 2026-04-07 13:09:21 +08:00
raid0.h md/raid0: add discard support for the 'original' layout 2023-06-30 15:43:50 -07:00
raid1-10.c md/raid5: use mempool to allocate stripe_request_ctx 2026-01-26 13:11:29 +08:00
raid1.c md/raid1: serialize overlap io for writemostly disk 2026-04-07 13:09:22 +08:00
raid1.h md: remove recovery_disabled 2026-01-26 13:17:38 +08:00
raid5-cache.c md/raid5: validate payload size before accessing journal metadata 2026-04-07 13:09:22 +08:00
raid5-log.h md/raid5-ppl: Drop unused argument from ppl_handle_flush_request() 2022-08-02 17:14:31 -06:00
raid5-ppl.c Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
raid5.c md/raid5: fix soft lockup in retry_aligned_read() 2026-04-07 15:13:52 +08:00
raid5.h md/raid5: remove stale md_raid5_kick_device() declaration 2026-03-23 02:15:11 +08:00
raid10.c md/raid10: fix deadlock with check operation and nowait requests 2026-03-16 01:24:59 +08:00
raid10.h md: remove recovery_disabled 2026-01-26 13:17:38 +08:00