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authorHeinz Mauelshagen <heinzm@redhat.com>2016-10-17 21:20:07 +0200
committerMike Snitzer <snitzer@redhat.com>2016-10-17 16:41:31 -0400
commitb052b07c39d593c9954a84d5bbe1563999483f38 (patch)
tree8846cbd53b679e7edae513880c0c4e3c7ad8638e /Documentation/device-mapper
parent12a7cf5ba6c776a2621d8972c7d42e8d3d959d20 (diff)
dm raid: fix activation of existing raid4/10 devices
dm-raid 1.9.0 fails to activate existing RAID4/10 devices that have the old superblock format (which does not have takeover/reshaping support that was added via commit 33e53f06850f). Fix validation path for old superblocks by reverting to the old raid4 layout and basing checks on mddev->new_{level,layout,...} members in super_init_validation(). Cc: stable@vger.kernel.org # 4.8 Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'Documentation/device-mapper')
-rw-r--r--Documentation/device-mapper/dm-raid.txt1
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/device-mapper/dm-raid.txt b/Documentation/device-mapper/dm-raid.txt
index e5b6497116f4..c75b64a85859 100644
--- a/Documentation/device-mapper/dm-raid.txt
+++ b/Documentation/device-mapper/dm-raid.txt
@@ -309,3 +309,4 @@ Version History
with a reshape in progress.
1.9.0 Add support for RAID level takeover/reshape/region size
and set size reduction.
+1.9.1 Fix activation of existing RAID 4/10 mapped devices