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dm raid: to ensure resynchronization, perform raid set grow in preresume

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This fixes a flaw causing raid set extensions not to be synchronized
in case the MD bitmap resize required additional pages to be allocated.

Also share resize code in the raid constructor between
new size changes and those occuring during recovery.

Bump the target version to define the change and document
it in Documentation/admin-guide/device-mapper/dm-raid.rst.

Reported-by: Steve D <steved424@gmail.com>
Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Heinz Mauelshagen
2019-10-01 17:47:53 +02:00
committed by Mike Snitzer
parent 22c992e1a8
commit 99273d9e6e
2 changed files with 62 additions and 21 deletions
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Documentation/admin-guide/device-mapper/dm-raid.rst
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@@ -417,3 +417,5 @@ Version History
deadlock/potential data corruption. Update superblock when
specific devices are requested via rebuild. Fix RAID leg
rebuild errors.
1.15.0 Fix size extensions not being synchronized in case of new MD bitmap
pages allocated; also fix those not occuring after previous reductions