From: Jonathan Brassow <jbrassow@redhat.com>
Date: Thu, 11 Oct 2012 02:40:24 +0000 (+1100)
Subject: DM RAID: Add rebuild capability for RAID10
X-Git-Tag: v3.7-rc1~10^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4ec1e369af83f7ecdfbd48a905e44fc9910115ba;p=pandora-kernel.git

DM RAID: Add rebuild capability for RAID10

DM RAID:  Add code to validate replacement slots for RAID10 arrays

RAID10 can handle 'copies - 1' failures for each mirror group.  This code
ensures the user has provided a valid array - one whose devices specified for
rebuild do not exceed the amount of redundancy available.

Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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