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(parent: f55c665) | 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)
commit33817cbe79938e921f40181ba6d92a49d9c434e5
tree21867997b4b5be3b677e0265adbfd33d3a6ef4adtree | snapshot
parentf55c6656f5203adf81a1e5673b91ec17491e6501commit | 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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