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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-10-09 16:01:59 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-10-09 16:01:59 -0700 |
| commit | c71370bde7dbd3aefae0c2e8dd643d68fb2c51c8 (patch) | |
| tree | 448d1b2cc5595324528280ed35505372b79cddf6 | |
| parent | 4899a36f91a9f9b06878471096bd143e7253006d (diff) | |
| parent | a7c01fa93aeb03ab76cd3cb2107990dd160498e6 (diff) | |
Merge tag 'interrupting_kthread_stop-for-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull kthread update from Eric Biederman:
"Break out of wait loops on kthread_stop()
This is a small tweak to kthread_stop so it breaks out of
interruptible waits, that don't explicitly test for kthread_stop.
These interruptible waits occassionaly occur in kernel threads do to
code sharing"
* tag 'interrupting_kthread_stop-for-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
signal: break out of wait loops on kthread_stop()
| -rw-r--r-- | kernel/kthread.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/kthread.c b/kernel/kthread.c index 28a6b7ab4a0f..f97fd01a2932 100644 --- a/kernel/kthread.c +++ b/kernel/kthread.c @@ -704,6 +704,7 @@ int kthread_stop(struct task_struct *k) kthread = to_kthread(k); set_bit(KTHREAD_SHOULD_STOP, &kthread->flags); kthread_unpark(k); + set_tsk_thread_flag(k, TIF_NOTIFY_SIGNAL); wake_up_process(k); wait_for_completion(&kthread->exited); ret = kthread->result; |