diff options
| author | Arve Hjønnevåg <arve@android.com> | 2023-06-02 21:23:46 +0000 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2023-06-16 17:08:01 +0200 |
| commit | ef73d6a4ef0b35524125c3cfc6deafc26a0c966a (patch) | |
| tree | c7c854cb2d8ed6157dc87733d955a36947e17fd8 /include/linux/kthread.h | |
| parent | 0cce0fde499a92c726cd2e24f7763644f7c9f971 (diff) | |
sched/wait: Fix a kthread_park race with wait_woken()
kthread_park and wait_woken have a similar race that
kthread_stop and wait_woken used to have before it was fixed in
commit cb6538e740d7 ("sched/wait: Fix a kthread race with
wait_woken()"). Extend that fix to also cover kthread_park.
[jstultz: Made changes suggested by Peter to optimize
memory loads]
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: John Stultz <jstultz@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <vschneid@redhat.com>
Link: https://lore.kernel.org/r/20230602212350.535358-1-jstultz@google.com
Diffstat (limited to 'include/linux/kthread.h')
| -rw-r--r-- | include/linux/kthread.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/kthread.h b/include/linux/kthread.h index 30e5bec81d2b..f1f95a71a4bc 100644 --- a/include/linux/kthread.h +++ b/include/linux/kthread.h @@ -89,6 +89,7 @@ int kthread_stop(struct task_struct *k); bool kthread_should_stop(void); bool kthread_should_park(void); bool __kthread_should_park(struct task_struct *k); +bool kthread_should_stop_or_park(void); bool kthread_freezable_should_stop(bool *was_frozen); void *kthread_func(struct task_struct *k); void *kthread_data(struct task_struct *k); |