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Delete slow-work timers properly 

Slow-work appears to delete its timer as soon as the first user
unregisters, even though other users could be active.  At the same time, it
never seems to delete slow_work_oom_timer.  Arrange for both to happen in
the shutdown path.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jonathan Corbet 2009-04-22 12:01:49 +01:00 committed by Linus Torvalds
parent 3e241ff0c5
commit 418df63c2d
1 changed files with 2 additions and 2 deletions
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4
kernel/slow-work.c
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@ -609,14 +609,14 @@ void slow_work_unregister_user(void)
if (slow_work_user_count == 0) { if (slow_work_user_count == 0) {
printk(KERN_NOTICE "Slow work thread pool: Shutting down\n"); printk(KERN_NOTICE "Slow work thread pool: Shutting down\n");
slow_work_threads_should_exit = true; slow_work_threads_should_exit = true;
del_timer_sync(&slow_work_cull_timer);
del_timer_sync(&slow_work_oom_timer);
wake_up_all(&slow_work_thread_wq); wake_up_all(&slow_work_thread_wq);
wait_for_completion(&slow_work_last_thread_exited); wait_for_completion(&slow_work_last_thread_exited);
printk(KERN_NOTICE "Slow work thread pool:" printk(KERN_NOTICE "Slow work thread pool:"
" Shut down complete\n"); " Shut down complete\n");
} }
del_timer_sync(&slow_work_cull_timer);
mutex_unlock(&slow_work_user_lock); mutex_unlock(&slow_work_user_lock);
} }
EXPORT_SYMBOL(slow_work_unregister_user); EXPORT_SYMBOL(slow_work_unregister_user);