Joe Thornber ed9571f0cf dm array: fix a reference counting bug in shadow_ablock ...

An old array block could have its reference count decremented below
zero when it is being replaced in the btree by a new array block.

The fix is to increment the old ablock's reference count just before
inserting a new ablock into the btree.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org # 3.9+

2013-12-13 14:22:10 -05:00

20 KiB

Raw Blame History

View Raw