diff options
| author | Oleg Nesterov <oleg@redhat.com> | 2013-02-19 14:56:53 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-04 06:09:06 +0800 |
| commit | 8a9279a5af607d9f59b3921c639df139a28bcef6 (patch) | |
| tree | cd74e15719dea0c2272f70c29688b4a55a40a8ce /kernel | |
| parent | a214998c48e204227d52a81dd459ea51a8a9ae36 (diff) | |
wake_up_process() should be never used to wakeup a TASK_STOPPED/TRACED task
Upstream commit 9067ac85d533651b98c2ff903182a20cbb361fcb.
wake_up_process() should never wakeup a TASK_STOPPED/TRACED task.
Change it to use TASK_NORMAL and add the WARN_ON().
TASK_ALL has no other users, probably can be killed.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index aacd55f8d4e..cd2b7cb638f 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -2778,7 +2778,8 @@ out: */ int wake_up_process(struct task_struct *p) { - return try_to_wake_up(p, TASK_ALL, 0); + WARN_ON(task_is_stopped_or_traced(p)); + return try_to_wake_up(p, TASK_NORMAL, 0); } EXPORT_SYMBOL(wake_up_process); |