Mikulas Patocka 771ba4c6a8 dm: use bio_clone_blkg_association ...

[ Upstream commit 2df8b310bc ]

The origin bio carries blk-cgroup information which could be set from
foreground(task_css(css) - wbc->wb->blkcg_css), so the blkcg won't
control buffer io since commit ca522482e3 ("dm: pass NULL bdev to
bio_alloc_clone"). The synchronous io is still under control by blkcg,
because 'bio->bi_blkg' is set by io submitting task which has been added
into 'cgroup.procs'.

Fix it by using bio_clone_blkg_association when submitting a cloned bio.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=220985
Fixes: ca522482e3 ("dm: pass NULL bdev to bio_alloc_clone")
Reported-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Tested-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2026-03-04 07:20:04 -05:00

..

bcache

bcache: fix I/O accounting leak in detached_dev_do_request

2026-02-06 16:55:44 +01:00

dm-vdo

dm vdo: return error on corrupted metadata in start_restoring_volume functions

2025-10-15 12:00:15 +02:00

persistent-data

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dm-audit.c

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dm-audit.h

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dm-bio-prison-v1.c

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dm-bio-prison-v1.h

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dm-bio-prison-v2.c

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dm-bio-prison-v2.h

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dm-bio-record.h

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dm-bufio.c

dm-bufio: align write boundary on physical block size

2026-01-08 10:14:44 +01:00

dm-builtin.c

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dm-cache-background-tracker.c

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dm-cache-background-tracker.h

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dm-cache-block-types.h

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dm-cache-metadata.c

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dm-cache-metadata.h

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dm-cache-policy-internal.h

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dm-cache-policy-smq.c

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dm-cache-policy.c

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dm-cache-policy.h

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dm-cache-target.c

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dm-clone-metadata.c

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dm-clone-metadata.h

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dm-clone-target.c

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dm-core.h

dm: fix queue start/stop imbalance under suspend/load/resume races

2025-10-15 12:00:22 +02:00

dm-crypt.c

dm: dm-crypt: Do not partially accept write BIOs with zoned targets

2025-08-28 16:30:53 +02:00

dm-delay.c

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dm-dust.c

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dm-ebs-target.c

dm-ebs: Mark full buffer dirty even on partial write

2026-01-08 10:14:44 +01:00

dm-era-target.c

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dm-exception-store.c

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dm-exception-store.h

dm-snapshot: fix 'scheduling while atomic' on real-time kernels

2026-01-17 16:31:19 +01:00

dm-flakey.c

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dm-ima.c

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dm-ima.h

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dm-init.c

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dm-integrity.c

dm-integrity: limit MAX_TAG_SIZE to 255

2025-10-12 12:57:16 +02:00

dm-io-rewind.c

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dm-io-tracker.h

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dm-io.c

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dm-ioctl.c

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dm-kcopyd.c

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dm-linear.c

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dm-log-userspace-base.c

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dm-log-userspace-transfer.c

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dm-log-userspace-transfer.h

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dm-log-writes.c

dm log-writes: Add missing set_freezable() for freezable kthread

2025-12-18 13:55:21 +01:00

dm-log.c

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dm-mpath.c

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dm-mpath.h

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dm-path-selector.c

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dm-path-selector.h

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dm-ps-historical-service-time.c

dm-mpath: don't print the "loaded" message if registering fails

2025-08-20 18:30:46 +02:00

dm-ps-io-affinity.c

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dm-ps-queue-length.c

dm-mpath: don't print the "loaded" message if registering fails

2025-08-20 18:30:46 +02:00

dm-ps-round-robin.c

dm-mpath: don't print the "loaded" message if registering fails

2025-08-20 18:30:46 +02:00

dm-ps-service-time.c

dm-mpath: don't print the "loaded" message if registering fails

2025-08-20 18:30:46 +02:00

dm-raid1.c

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dm-raid.c

dm-raid: fix possible NULL dereference with undefined raid type

2025-12-18 13:55:21 +01:00

dm-region-hash.c

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dm-rq.c

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dm-rq.h

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dm-snap-persistent.c

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dm-snap-transient.c

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dm-snap.c

dm-snapshot: fix 'scheduling while atomic' on real-time kernels

2026-01-17 16:31:19 +01:00

dm-stats.c

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dm-stats.h

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dm-stripe.c

dm-stripe: fix a possible integer overflow

2025-09-25 11:13:45 +02:00

dm-switch.c

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dm-sysfs.c

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dm-table.c

dm-table: fix checking for rq stackable devices

2025-08-20 18:30:46 +02:00

dm-target.c

dm error: mark as DM_TARGET_PASSES_INTEGRITY

2025-11-13 15:34:14 -05:00

dm-thin-metadata.c

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dm-thin-metadata.h

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dm-thin.c

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dm-uevent.c

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dm-uevent.h

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dm-unstripe.c

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dm-verity-fec.c

dm-verity: fix unreliable memory allocation

2025-12-07 06:24:59 +09:00

dm-verity-fec.h

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dm-verity-loadpin.c

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dm-verity-target.c

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dm-verity-verify-sig.c

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dm-verity-verify-sig.h

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dm-verity.h

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dm-writecache.c

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dm-zero.c

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dm-zone.c

dm: use READ_ONCE in dm_blk_report_zones

2026-03-04 07:20:00 -05:00

dm-zoned-metadata.c

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dm-zoned-reclaim.c

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dm-zoned-target.c

md: dm-zoned-target: Initialize return variable r to avoid uninitialized use

2025-08-20 18:30:46 +02:00

dm-zoned.h

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dm.c

dm: use bio_clone_blkg_association

2026-03-04 07:20:04 -05:00

dm.h

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Kconfig

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Makefile

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md-autodetect.c

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md-bitmap.c

md/md-bitmap: fix wrong bitmap_limit for clustermd when write sb

2025-09-09 18:58:21 +02:00

md-bitmap.h

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md-cluster.c

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md-cluster.h

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md-linear.c

md: fix mssing blktrace bio split events

2025-10-23 16:20:42 +02:00

md.c

md: suspend array while updating raid_disks via sysfs

2026-02-11 13:40:19 +01:00

md.h

md: fix rcu protection in md_wakeup_thread

2025-12-18 13:54:55 +01:00

raid0.c

md: fix mssing blktrace bio split events

2025-10-23 16:20:42 +02:00

raid0.h

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raid1-10.c

md/raid1,raid10: don't handle IO error for REQ_RAHEAD and REQ_NOWAIT

2025-09-09 18:58:20 +02:00

raid1.c

md/raid1: fix memory leak in raid1_run()

2026-03-04 07:19:30 -05:00

raid1.h

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raid5-cache.c

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raid5-log.h

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raid5-ppl.c

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raid5.c

md/raid5: fix raid5_run() to return error when log_init() fails

2026-03-04 07:19:28 -05:00

raid5.h

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raid10.c

md/raid10: fix any_working flag handling in raid10_sync_request

2026-03-04 07:19:29 -05:00

raid10.h

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