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authorJoe Thornber <ejt@redhat.com>2015-09-01 13:38:19 +0300
committerMike Snitzer <snitzer@redhat.com>2015-09-01 15:56:14 +0300
commitcc7da0ba9c96699592d0a69d7d146ac6adcc18e7 (patch)
tree84a021e91e6bb4a9e395315fcf4a80bfc3f3fd51 /net/packet/internal.h
parentdc9cee5db50afaf38506bc12eb479fb8ea536dba (diff)
downloadlinux-cc7da0ba9c96699592d0a69d7d146ac6adcc18e7.tar.xz
dm cache: fix use after freeing migrations
Both free_io_migration() and issue_discard() dereference a migration that was just freed. Fix those by saving off the migrations's cache object before freeing the migration. Also cleanup needless mg->cache dereferences now that the cache object is available directly. Fixes: e44b6a5a3c ("dm cache: move wake_waker() from free_migrations() to where it is needed") Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'net/packet/internal.h')
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