From: Mike Snitzer <snitzer@redhat.com>
Date: Thu, 12 Feb 2015 21:25:05 +0000 (-0500)
Subject: dm space map disk: fix sm_disk_count_is_more_than_one()
X-Git-Tag: fixes-v4.0-rc1~28^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=145b9006a0ae753582902170ec1da49f89501845;p=pandora-kernel.git

dm space map disk: fix sm_disk_count_is_more_than_one()

dm_tm_shadow_block() is the only caller of
dm_sm_count_is_more_than_one() which only ever operates on a metadata
space-map.  So in practice, sm_disk_count_is_more_than_one() isn't
actually used (which explains why this bug never amounted to anything).

But fix sm_disk_count_is_more_than_one() to properly set *result and
return 0.

Reported-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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