From: Joe Thornber <ejt@redhat.com>
Date: Thu, 31 Oct 2013 17:55:49 +0000 (-0400)
Subject: dm cache: cache shrinking support
X-Git-Tag: v3.13-rc1~97^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f494a9c6b1b6dd9a9f21bbb75d9210d478eeb498;p=pandora-kernel.git

dm cache: cache shrinking support

Allow a cache to shrink if the blocks being removed from the cache are
not dirty.

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