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Alex Lyakas c9851c6445 md: Whenassemble the array, consult the superblock of the freshest device 
[ Upstream commit dc1cc22ed5 ]

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>
 		2024-02-05 20:14:24 +00:00
..
bcache bcache: avoid NULL checking to c->root in run_cache_set() 2023-12-20 17:01:56 +01:00
persistent-data dm thin metadata: Fix ABBA deadlock by resetting dm_bufio_client 2023-06-16 18:24:13 -04:00
Kconfig dm audit: fix Kconfig so DM_AUDIT depends on BLK_DEV_DM 2024-01-20 11:51:45 +01:00
Makefile hardening updates for v5.20-rc1 2022-08-02 14:38:59 -07:00
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 dm: improve hash_locks sizing and hash function 2023-03-30 15:57:51 -04:00
dm-bio-prison-v1.h dm bio prison v1: add dm_cell_key_has_valid_range 2023-03-30 15:57:51 -04:00
dm-bio-prison-v2.c dm: address space issues relative to switch/while/for/... 2023-02-14 14:23:06 -05:00
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: fix no-sleep mode 2023-11-28 17:20:12 +00:00
dm-builtin.c dm: adjust EXPORT_SYMBOL() to follow functions immediately 2023-02-14 14:23:07 -05:00
dm-cache-background-tracker.c dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
dm-cache-background-tracker.h dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
dm-cache-block-types.h dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-cache-metadata.c Revert "mm: shrinkers: convert shrinker_rwsem to mutex" 2023-06-19 13:19:33 -07:00
dm-cache-metadata.h dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
dm-cache-policy-internal.h dm: add missing empty lines 2023-02-14 14:23:06 -05:00
dm-cache-policy-smq.c dm cache policy smq: ensure IO doesn't prevent cleaner policy progress 2023-07-25 11:55:50 -04:00
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 block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
dm-clone-metadata.c
…
dm-clone-metadata.h
…
dm-clone-target.c block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
dm-core.h dm: fix a race condition in retrieve_deps 2023-09-14 11:18:29 -04:00
dm-crypt.c dm-crypt: start allocating with MAX_ORDER 2023-12-13 18:45:01 +01:00
dm-delay.c dm-delay: fix a race between delay_presuspend and delay_bio 2023-12-03 07:33:09 +01:00
dm-dust.c dm: add helper macro for simple DM target module init and exit 2023-04-11 12:09:08 -04:00
dm-ebs-target.c dm: add helper macro for simple DM target module init and exit 2023-04-11 12:09:08 -04:00
dm-era-target.c block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
dm-exception-store.c dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
dm-exception-store.h dm: avoid spaces before function arguments or in favour of tabs 2023-02-14 14:23:06 -05:00
dm-flakey.c dm flakey: introduce random_read_corrupt and random_write_corrupt options 2023-06-16 18:24:13 -04:00
dm-ima.c dm: avoid inline filenames 2023-02-14 14:23:07 -05:00
dm-ima.h dm: avoid inline filenames 2023-02-14 14:23:07 -05:00
dm-init.c dm: open code dm_get_dev_t in dm_init_init 2023-06-05 10:57:40 -06:00
dm-integrity.c dm-integrity: don't modify bio's immutable bio_vec in integrity_metadata() 2024-01-01 12:42:45 +00:00
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 dm: remove unnecessary (void*) conversions 2023-04-11 12:01:01 -04:00
dm-ioctl.c dm: fix a race condition in retrieve_deps 2023-09-14 11:18:29 -04:00
dm-kcopyd.c dm: remove unnecessary (void*) conversions 2023-04-11 12:01:01 -04:00
dm-linear.c dm: remove unnecessary (void*) conversions 2023-04-11 12:01:01 -04:00
dm-log-userspace-base.c dm: avoid void function return statements 2023-02-14 14:23:07 -05:00
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 dm: add helper macro for simple DM target module init and exit 2023-04-11 12:09:08 -04:00
dm-log.c dm: remove unnecessary (void*) conversions 2023-04-11 12:01:01 -04:00
dm-mpath.c dm: push error reporting down to dm_register_target() 2023-04-11 12:01:01 -04:00
dm-mpath.h dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
dm-path-selector.c dm: adjust EXPORT_SYMBOL() to follow functions immediately 2023-02-14 14:23:07 -05:00
dm-path-selector.h dm: avoid spaces before function arguments or in favour of tabs 2023-02-14 14:23:06 -05:00
dm-ps-historical-service-time.c dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-ps-io-affinity.c dm: address space issues relative to switch/while/for/... 2023-02-14 14:23:06 -05:00
dm-ps-queue-length.c dm: avoid spaces before function arguments or in favour of tabs 2023-02-14 14:23:06 -05:00
dm-ps-round-robin.c dm: correct block comments format. 2023-02-14 14:23:06 -05:00
dm-ps-service-time.c dm: avoid spaces before function arguments or in favour of tabs 2023-02-14 14:23:06 -05:00
dm-raid.c for-6.6/block-2023-08-28 2023-08-29 20:21:42 -07:00
dm-raid1.c dm: remove unnecessary (void*) conversions 2023-04-11 12:01:01 -04:00
dm-region-hash.c dm: correct block comments format. 2023-02-14 14:23:06 -05:00
dm-rq.c dm: avoid using symbolic permissions 2023-02-14 14:23:07 -05:00
dm-rq.h dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
dm-snap-persistent.c dm: remove unnecessary (void*) conversions 2023-04-11 12:01:01 -04:00
dm-snap-transient.c dm: avoid split of quoted strings where possible 2023-02-14 14:23:07 -05:00
dm-snap.c block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
dm-stats.c dm stats: check for and propagate alloc_percpu failure 2023-03-16 13:37:06 -04:00
dm-stats.h dm stats: check for and propagate alloc_percpu failure 2023-03-16 13:37:06 -04:00
dm-stripe.c dm: remove unnecessary (void*) conversions 2023-04-11 12:01:01 -04:00
dm-switch.c dm: add helper macro for simple DM target module init and exit 2023-04-11 12:09:08 -04:00
dm-sysfs.c dm sysfs: make kobj_type structure constant 2023-02-14 14:23:08 -05:00
dm-table.c dm: fix a race condition in retrieve_deps 2023-09-14 11:18:29 -04:00
dm-target.c dm: push error reporting down to dm_register_target() 2023-04-11 12:01:01 -04:00
dm-thin-metadata.c - Update DM crypt to allocate compound pages if possible. 2023-06-30 12:16:00 -07:00
dm-thin-metadata.h dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-thin.c - Update DM crypt to allocate compound pages if possible. 2023-06-30 12:16:00 -07:00
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 dm: add helper macro for simple DM target module init and exit 2023-04-11 12:09:08 -04:00
dm-verity-fec.c dm-verity: align struct dm_verity_fec_io properly 2023-12-08 08:52:16 +01:00
dm-verity-fec.h dm: change "unsigned" to "unsigned int" 2023-02-14 14:23:06 -05:00
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 dm verity: don't perform FEC for failed readahead IO 2023-12-08 08:52:18 +01:00
dm-verity-verify-sig.c dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-verity-verify-sig.h dm: add missing SPDX-License-Indentifiers 2023-02-14 14:23:06 -05:00
dm-verity.h dm-verity: align struct dm_verity_fec_io properly 2023-12-08 08:52:16 +01:00
dm-writecache.c dm: add helper macro for simple DM target module init and exit 2023-04-11 12:09:08 -04:00
dm-zero.c dm: add helper macro for simple DM target module init and exit 2023-04-11 12:09:08 -04:00
dm-zone.c dm zone: Use the bitmap API to allocate bitmaps 2023-06-16 18:24:13 -04:00
dm-zoned-metadata.c dm: dm-zoned: use __bio_add_page for adding single metadata page 2023-05-31 09:50:02 -06:00
dm-zoned-reclaim.c dm kcopyd: avoid useless atomic operations 2021-06-04 12:07:24 -04:00
dm-zoned-target.c dm zoned: free dmz->ddev array in dmz_put_zoned_devices 2023-09-20 13:48:06 -04:00
dm-zoned.h dm/dm-zoned: Use the enum req_op type 2022-07-14 12:14:31 -06:00
dm.c dm: don't attempt to queue IO under RCU protection 2023-09-15 15:39:59 -04:00
dm.h dm: remove stale/redundant dm_internal_{suspend,resume} prototypes in dm.h 2023-06-16 18:24:14 -04:00
md-autodetect.c init: improve the name_to_dev_t interface 2023-06-05 10:56:46 -06:00
md-bitmap.c md/md-bitmap: hold 'reconfig_mutex' in backlog_store() 2023-07-27 00:13:30 -07:00
md-bitmap.h md-bitmap: don't use ->index for pages backing the bitmap file 2023-07-27 00:13:29 -07:00
md-cluster.c md: Hold mddev->reconfig_mutex when trying to get mddev->sync_thread 2023-08-15 09:40:26 -07:00
md-cluster.h
…
md-faulty.c md/md-faulty: enable io accounting 2023-07-27 00:13:30 -07:00
md-linear.c md/md-linear: enable io accounting 2023-07-27 00:13:30 -07:00
md-linear.h
…
md-multipath.c md/md-multipath: enable io accounting 2023-07-27 00:13:29 -07:00
md-multipath.h
…
md.c md: Whenassemble the array, consult the superblock of the freshest device 2024-02-05 20:14:24 +00:00
md.h md: fix warning for holder mismatch from export_rdev() 2023-09-08 13:16:40 -07:00
raid0.c md: raid0: account for split bio in iostat accounting 2023-08-17 21:11:31 -07:00
raid0.h md/raid0: add discard support for the 'original' layout 2023-06-30 15:43:50 -07:00
raid1-10.c md/raid1-10: fix casting from randomized structure in raid1_submit_write() 2023-06-23 09:33:16 -07:00
raid1.c md/raid1: Use blk_opf_t for read and write operations 2024-01-25 15:35:46 -08:00
raid1.h md/raid1: switch to use md_account_bio() for io accounting 2023-07-27 00:13:29 -07:00
raid5-cache.c md/raid5-cache: fix null-ptr-deref for r5l_flush_stripe_to_raid() 2023-08-15 09:40:27 -07:00
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 md: raid5: use __bio_add_page to add single page to new bio 2023-05-31 09:50:02 -06:00
raid5.c Revert "Revert "md/raid5: Wait for MD_SB_CHANGE_PENDING in raid5d"" 2024-01-25 15:36:01 -08:00
raid5.h hardening updates for v6.5-rc1 2023-06-27 21:24:18 -07:00
raid10.c md: Hold mddev->reconfig_mutex when trying to get mddev->sync_thread 2023-08-15 09:40:26 -07:00
raid10.h md/raid10: switch to use md_account_bio() for io accounting 2023-07-27 00:13:29 -07:00