From: Mike Snitzer <snitzer@redhat.com>
Date: Wed, 15 Jul 2015 15:42:59 +0000 (-0400)
Subject: dm cache: display 'needs_check' in status if it is set
X-Git-Tag: omap-for-v4.3/fixes-merge-window~228^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=255eac20054e90ac7a52b3e179b61de1168a8fe6;p=pandora-kernel.git

dm cache: display 'needs_check' in status if it is set

There is currently no way to see that the needs_check flag has been set
in the metadata.  Display 'needs_check' in the cache status if it is set
in the cache metadata.

Also, update cache documentation.

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