From: Mike Snitzer <snitzer@redhat.com>
Date: Wed, 20 Mar 2013 17:21:27 +0000 (+0000)
Subject: dm cache: policy change version from string to integer set
X-Git-Tag: v3.9-rc4~20^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4e7f506f6429636115e2f58f9f97089acc62524a;p=pandora-kernel.git

dm cache: policy change version from string to integer set

Separate dm cache policy version string into 3 unsigned numbers
corresponding to major, minor and patchlevel and store them at the end
of the on-disk metadata so we know which version of the policy generated
the hints in case a future version wants to use them differently.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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