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dm thin: grab a virtual cell before looking up the mapping
authorJoe Thornber <ejt@redhat.com>
Fri, 10 Oct 2014 08:41:09 +0000 (09:41 +0100)
committerMike Snitzer <snitzer@redhat.com>
Tue, 4 Nov 2014 18:05:53 +0000 (13:05 -0500)
Avoids normal IO racing with discard.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
drivers/md/dm-thin.c patch | blob | history

diff --cc drivers/md/dm-thin.c
Simple merge
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