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Alex Lyakas 35350b47ce md: Whenassemble the array, consult the superblock of the freshest device 
[ Upstream commit dc1cc22ed58f11d58d8553c5ec5f11cbfc3e3039 ]

Upon assembling the array, both kernel and mdadm allow the devices to have event
counter difference of 1, and still consider them as up-to-date.
However, a device whose event count is behind by 1, may in fact not be up-to-date,
and array resync with such a device may cause data corruption.
To avoid this, consult the superblock of the freshest device about the status
of a device, whose event counter is behind by 1.

Signed-off-by: Alex Lyakas <alex.lyakas@zadara.com>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/1702470271-16073-1-git-send-email-alex.lyakas@zadara.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-18 12:13:14 +01:00
..
bcache bcache: avoid NULL checking to c->root in run_cache_set() 2024-11-18 12:11:56 +01:00
persistent-data Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
alta_bigdata.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-bio-prison-v1.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-bio-prison-v1.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-bio-prison-v2.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-bio-prison-v2.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-bio-record.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-bow.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-bufio.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-builtin.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-cache-background-tracker.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-cache-background-tracker.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-cache-block-types.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-cache-metadata.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-cache-metadata.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-cache-policy-internal.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-cache-policy-smq.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-cache-policy.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-cache-policy.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-cache-target.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-clone-metadata.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-clone-metadata.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-clone-target.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-core.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-crypt.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-default-key.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-delay.c dm-delay: fix a race between delay_presuspend and delay_bio 2024-11-18 12:10:57 +01:00
dm-dust.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-ebs-target.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-era-target.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-exception-store.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-exception-store.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-flakey.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-historical-service-time.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-init.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-integrity.c dm-integrity: don't modify bio's immutable bio_vec in integrity_metadata() 2024-11-18 12:12:03 +01:00
dm-io.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-ioctl.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-kcopyd.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-linear.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-log-userspace-base.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-log-userspace-transfer.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-log-userspace-transfer.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-log-writes.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-log.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-mpath.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-mpath.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-path-selector.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-path-selector.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-queue-length.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-raid.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-raid1.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-region-hash.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-round-robin.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-rq.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-rq.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-service-time.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-snap-persistent.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-snap-transient.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-snap.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-stats.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-stats.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-stripe.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-switch.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-sysfs.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-table.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-target.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-thin-metadata.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-thin-metadata.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-thin.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-uevent.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-uevent.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-unstripe.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-user.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-verity-debug.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-verity-debug.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-verity-fec.c dm-verity: align struct dm_verity_fec_io properly 2024-11-18 12:11:08 +01:00
dm-verity-fec.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-verity-target.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-verity-verify-sig.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-verity-verify-sig.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-verity.h dm-verity: align struct dm_verity_fec_io properly 2024-11-18 12:11:08 +01:00
dm-writecache.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-zero.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-zoned-metadata.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-zoned-reclaim.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-zoned-target.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm-zoned.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dm.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Kconfig Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Makefile Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
md-autodetect.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
md-bitmap.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
md-bitmap.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
md-cluster.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
md-cluster.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
md-faulty.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
md-linear.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
md-linear.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
md-multipath.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
md-multipath.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
md.c md: Whenassemble the array, consult the superblock of the freshest device 2024-11-18 12:13:14 +01:00
md.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
raid0.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
raid0.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
raid1-10.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
raid1.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
raid1.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
raid5-cache.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
raid5-log.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
raid5-ppl.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
raid5.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
raid5.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
raid10.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
raid10.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00