From: NeilBrown <neilb@suse.de>
Date: Thu, 22 Dec 2011 23:17:53 +0000 (+1100)
Subject: md/raid5: If there is a spare and a want_replacement device, start replacement.
X-Git-Tag: v3.3-rc1~164^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7bfec5f35c68121e7b1849f3f4166dd96c8da5b3;p=pandora-kernel.git

md/raid5: If there is a spare and a want_replacement device, start replacement.

When attempting to add a spare to a RAID[456] array, also consider
adding it as a replacement for a want_replacement device.

This requires that common md code attempt hot_add even when the array
is not formally degraded.

Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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