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| author | Mandeep Singh Baines <msb@chromium.org> | 2013-02-28 02:03:18 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-28 04:10:11 +0100 |
| commit | 6aa9707099c4b25700940eb3d016f16c4434360d (patch) | |
| tree | 6996f5789a3c0a09eea2fe57d318c1d387c24f3a /arch/microblaze | |
| parent | fs/proc/vmcore.c: put if tests in the top of the while loop to reduce duplica... (diff) | |
| download | linux-6aa9707099c4b25700940eb3d016f16c4434360d.tar.xz linux-6aa9707099c4b25700940eb3d016f16c4434360d.zip | |
lockdep: check that no locks held at freeze time
We shouldn't try_to_freeze if locks are held. Holding a lock can cause a
deadlock if the lock is later acquired in the suspend or hibernate path
(e.g. by dpm). Holding a lock can also cause a deadlock in the case of
cgroup_freezer if a lock is held inside a frozen cgroup that is later
acquired by a process outside that group.
[akpm@linux-foundation.org: export debug_check_no_locks_held]
Signed-off-by: Mandeep Singh Baines <msb@chromium.org>
Cc: Ben Chan <benchan@chromium.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/microblaze')
0 files changed, 0 insertions, 0 deletions