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(parent: 7f78b93) | patch
dm cache: only use overwrite optimisation for promotion when in writeback mode
authorJoe Thornber <ejt@redhat.com>
Thu, 27 Nov 2014 12:21:08 +0000 (12:21 +0000)
committerMike Snitzer <snitzer@redhat.com>
Mon, 1 Dec 2014 16:30:12 +0000 (11:30 -0500)
commitb92c8e3614c71b9344c6fbc610b3eec233643b61
tree21867997b4b5be3b677e0265adbfd33d3a6ef4adtree | snapshot
parent7f78b93bf484bd4e13dcac7d747c86a660187125commit | diff
dm cache: only use overwrite optimisation for promotion when in writeback mode

Overwrite causes the cache block and origin blocks to diverge, which
is only allowed in writeback mode.

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