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dm raid: fix rebuild of specific devices by updating superblock 

Update superblock when particular devices are requested via rebuild
(e.g. lvconvert --replace ...) to avoid spurious failure with the "New
device injected into existing raid set without 'delta_disks' or
'rebuild' parameter specified" error message.

Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Heinz Mauelshagen 2018-09-06 18:33:40 +02:00 committed by Mike Snitzer
parent 644e2537fd
commit c44a5ee803
1 changed files with 5 additions and 0 deletions
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5
drivers/md/dm-raid.c
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@ -3126,6 +3126,11 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv)
set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags);
rs_set_new(rs);
} else if (rs_is_recovering(rs)) {
/* Rebuild particular devices */
if (test_bit(__CTR_FLAG_REBUILD, &rs->ctr_flags)) {
set_bit(RT_FLAG_UPDATE_SBS, &rs->runtime_flags);
rs_setup_recovery(rs, MaxSector);
}
/* A recovering raid set may be resized */
; /* skip setup rs */
} else if (rs_is_reshaping(rs)) {