From: Heinz Mauelshagen <heinzm@redhat.com>
Date: Tue, 25 Aug 2015 15:15:41 +0000 (+0200)
Subject: dm raid: document RAID 4/5/6 discard support
X-Git-Tag: omap-for-v4.3/fixes-rc1~111^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f15f4d720088c140cdf1fee6aeab3549dbdddc41;p=pandora-kernel.git

dm raid: document RAID 4/5/6 discard support

For RAID 4/5/6 data integrity reasons 'discard_zeroes_data' must work
properly.

Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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