| commit | 99ba2ae4cd876bbcedb01d94c1a7952ce171418e | [log] [tgz] |
|---|---|---|
| author | Joe Thornber <ejt@redhat.com> | Mon Oct 21 11:44:57 2013 +0100 |
| committer | Mike Snitzer <snitzer@redhat.com> | Sat Nov 09 17:54:34 2013 -0500 |
| tree | e150c06aff63538e6c64ff29a88f6afdb9d9fe20 | |
| parent | 9c1d4de56066e4d6abc66ec188faafd7b303fb08 [diff] |
dm cache policy mq: protect residency method with existing mutex It is safe to use a mutex in mq_residency() at this point since it is only called from ioctl context. But future-proof mq_residency() by using might_sleep() to catch new contexts that cannot sleep. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>