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linux/drivers/md
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Shaohua Li 8f177fb603 MD: fix invalid stored role for a disk 
[ Upstream commit d595567dc4 ]

If we change the number of array's device after device is removed from array,
then add the device back to array, we can see that device is added as active
role instead of spare which we expected.

Please see the below link for details:
https://marc.info/?l=linux-raid&m=153736982015076&w=2

This is caused by that we prefer to use device's previous role which is
recorded by saved_raid_disk, but we should respect the new number of
conf->raid_disks since it could be changed after device is removed.

Reported-by: Gioh Kim <gi-oh.kim@profitbricks.com>
Tested-by: Gioh Kim <gi-oh.kim@profitbricks.com>
Acked-by: Guoqing Jiang <gqjiang@suse.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-11-21 09:27:33 +01:00
..
bcache bcache: fix miss key refill->end in writeback 2018-11-21 09:27:30 +01:00
persistent-data dm btree: fix serious bug in btree_split_beneath() 2018-01-23 19:50:16 +01:00
bitmap.c md/bitmap: disable bitmap_resize for file-backed bitmaps. 2017-09-27 11:00:14 +02:00
bitmap.h md-cluster: Use a small window for resync 2015-10-12 01:32:05 -05:00
dm-bio-prison.c block: add a bi_error field to struct bio 2015-07-29 08:55:15 -06:00
dm-bio-prison.h dm bio prison: add dm_cell_promote_or_release() 2015-05-29 14:19:06 -04:00
dm-bio-record.h dm: Refactor for new bio cloning/splitting 2013-11-23 22:33:55 -08:00
dm-bufio.c dm bufio: don't take the lock in dm_bufio_shrink_count 2018-07-11 16:03:51 +02:00
dm-bufio.h dm snapshot: use dm-bufio prefetch 2014-01-14 23:23:03 -05:00
dm-builtin.c dm sysfs: fix a module unload race 2014-01-14 23:23:04 -05:00
dm-cache-block-types.h dm cache: revert "remove remainder of distinct discard block size" 2014-11-10 15:25:30 -05:00
dm-cache-metadata.c dm cache metadata: save in-core policy_hint_size to on-disk superblock 2018-09-09 20:04:33 +02:00
dm-cache-metadata.h dm cache: make sure every metadata function checks fail_io 2016-04-12 09:08:40 -07:00
dm-cache-policy-cleaner.c - Revert a dm-multipath change that caused a regression for unprivledged 2015-11-04 21:19:53 -08:00
dm-cache-policy-internal.h dm cache: age and write back cache entries even without active IO 2015-06-11 17:13:01 -04:00
dm-cache-policy-mq.c dm: convert ffs to __ffs 2015-10-31 19:06:01 -04:00
dm-cache-policy-smq.c dm: convert ffs to __ffs 2015-10-31 19:06:01 -04:00
dm-cache-policy.c dm cache: add policy name to status output 2014-01-16 13:44:11 -05:00
dm-cache-policy.h dm cache: age and write back cache entries even without active IO 2015-06-11 17:13:01 -04:00
dm-cache-target.c dm cache: fix resize crash if user doesn't reload cache table 2018-10-13 09:11:32 +02:00
dm-crypt.c dm crypt: mark key as invalid until properly loaded 2017-01-06 11:16:15 +01:00
dm-delay.c dm delay: document that offsets are specified in sectors 2015-10-31 19:06:05 -04:00
dm-era-target.c dm era: save spacemap metadata root after the pre-commit 2017-05-20 14:27:00 +02:00
dm-exception-store.c - Revert a dm-multipath change that caused a regression for unprivledged 2015-11-04 21:19:53 -08:00
dm-exception-store.h dm snapshot: fix hung bios when copy error occurs 2016-03-03 15:07:14 -08:00
dm-flakey.c dm flakey: return -EINVAL on interval bounds error in flakey_ctr() 2017-01-06 11:16:15 +01:00
dm-io.c dm io: fix duplicate bio completion due to missing ref count 2018-03-11 16:19:47 +01:00
dm-ioctl.c dm ioctl: remove double parentheses 2018-04-08 11:51:57 +02:00
dm-kcopyd.c dm kcopyd: avoid softlockup in run_complete_job 2018-09-15 09:40:39 +02:00
dm-linear.c dm linear: remove redundant target name from error messages 2015-10-31 19:06:03 -04:00
dm-log-userspace-base.c dm: drop NULL test before kmem_cache_destroy() and mempool_destroy() 2015-10-31 19:06:00 -04:00
dm-log-userspace-transfer.c dm log userspace transfer: match wait_for_completion_timeout return type 2015-04-15 12:10:20 -04:00
dm-log-userspace-transfer.h
dm-log-writes.c dm log writes: fix bug with too large bios 2016-10-07 15:23:47 +02:00
dm-log.c dm: use memweight() 2012-07-30 17:25:16 -07:00
dm-mpath.c dm mpath: check if path's request_queue is dying in activate_path() 2016-10-28 03:01:28 -04:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c
dm-raid.c dm raid: fix round up of default region size 2015-10-02 12:02:31 -04:00
dm-raid1.c dm mirror: fix read error on recovery after default leg failure 2016-11-10 16:36:35 +01:00
dm-region-hash.c dm: convert ffs to __ffs 2015-10-31 19:06:01 -04:00
dm-round-robin.c
dm-service-time.c
dm-snap-persistent.c dm snapshot: fix hung bios when copy error occurs 2016-03-03 15:07:14 -08:00
dm-snap-transient.c dm snapshot: fix hung bios when copy error occurs 2016-03-03 15:07:14 -08:00
dm-snap.c dm snapshot: disallow the COW and origin devices from being identical 2016-04-12 09:08:39 -07:00
dm-stats.c dm stats: fix a leaked s->histogram_boundaries array 2017-03-12 06:37:26 +01:00
dm-stats.h dm stats: support precise timestamps 2015-06-17 12:40:40 -04:00
dm-stripe.c Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm 2015-09-02 16:35:26 -07:00
dm-switch.c dm switch: simplify conditional in alloc_region_table() 2015-10-31 19:06:06 -04:00
dm-sysfs.c dm: add 'use_blk_mq' module param and expose in per-device ro sysfs attr 2015-04-15 12:10:17 -04:00
dm-table.c dm snapshot: disallow the COW and origin devices from being identical 2016-04-12 09:08:39 -07:00
dm-target.c dm: allocate requests in target when stacking on blk-mq devices 2015-02-09 13:06:47 -05:00
dm-thin-metadata.c dm thin metadata: fix __udivdi3 undefined on 32-bit 2018-10-10 08:52:13 +02:00
dm-thin-metadata.h dm thin metadata: add dm_thin_remove_range() 2015-06-11 17:13:04 -04:00
dm-thin.c dm thin metadata: try to avoid ever aborting transactions 2018-10-10 08:52:12 +02:00
dm-uevent.c
dm-uevent.h
dm-verity.c dm: refactor ioctl handling 2015-10-31 19:05:59 -04:00
dm-zero.c block: add a bi_error field to struct bio 2015-07-29 08:55:15 -06:00
dm.c dm: correctly handle chained bios in dec_pending() 2018-02-22 15:45:01 +01:00
dm.h block: kill merge_bvec_fn() completely 2015-08-13 12:31:57 -06:00
faulty.c block: add a bi_error field to struct bio 2015-07-29 08:55:15 -06:00
Kconfig dm raid: select the Kconfig option CONFIG_MD_RAID0 2017-05-25 14:30:07 +02:00
linear.c md/linear: shutup lockdep warnning 2017-10-21 17:09:05 +02:00
linear.h md linear: fix a race between linear_add() and linear_congested() 2017-03-12 06:37:30 +01:00
Makefile raid5: add basic stripe log 2015-10-24 17:16:19 +11:00
md-cluster.c md-cluster: clear another node's suspend_area after the copy is finished 2018-10-10 08:52:04 +02:00
md-cluster.h md-cluster: Fix adding of new disk with new reload code 2015-10-12 03:35:30 -05:00
md.c MD: fix invalid stored role for a disk 2018-11-21 09:27:33 +01:00
md.h md/raid: only permit hot-add of compatible integrity profiles 2016-02-17 12:30:57 -08:00
multipath.c md: multipath: don't hardcopy bio in .make_request path 2016-04-12 09:08:57 -07:00
multipath.h
raid1.c md/raid1: fix NULL pointer dereference 2018-05-30 07:49:01 +02:00
raid1.h md-cluster: Use a small window for resync 2015-10-12 01:32:05 -05:00
raid5-cache.c raid5-cache: start raid5 readonly if journal is missing 2015-11-01 13:48:29 +11:00
raid5.c md/raid5: fix data corruption of replacements after originals dropped 2018-09-19 22:48:57 +02:00
raid5.h RAID5: revert e9e4c377e2 to fix a livelock 2016-04-12 09:08:57 -07:00
raid10.c RAID10 BUG_ON in raise_barrier when force is true and conf->barrier is 0 2018-10-10 08:52:11 +02:00
raid10.h md/raid10: ensure device failure recorded before write request returns. 2015-08-31 19:43:45 +02:00
raid0.c md/raid0: apply base queue limits *before* disk_stack_limits 2015-10-02 17:23:44 +10:00
raid0.h block: kill merge_bvec_fn() completely 2015-08-13 12:31:57 -06:00