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| author | Tejun Heo <tj@kernel.org> | 2011-11-21 12:32:26 -0800 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2011-11-21 12:32:26 -0800 |
| commit | 37ad8aca94a1da2112a7c56151390914e80d1113 (patch) | |
| tree | daf5f8956aa7fa7b8d3e15aaf67dd3d6fc6f2375 /kernel/trace/trace_irqsoff.c | |
| parent | 5ece3eae4cdb968c269e0bc7e2c0e2b223552025 (diff) | |
| download | op-kernel-dev-37ad8aca94a1da2112a7c56151390914e80d1113.zip op-kernel-dev-37ad8aca94a1da2112a7c56151390914e80d1113.tar.gz | |
freezer: use lock_task_sighand() in fake_signal_wake_up()
cgroup_freezer calls freeze_task() without holding tasklist_lock and,
if the task is exiting, its ->sighand may be gone by the time
fake_signal_wake_up() is called. Use lock_task_sighand() instead of
accessing ->sighand directly.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Paul Menage <paul@paulmenage.org>
Diffstat (limited to 'kernel/trace/trace_irqsoff.c')
0 files changed, 0 insertions, 0 deletions
