[patch 6/8] posix-cpu-timers: Use PF_EXITING to indicate exit

[Thomas Gleixner]

Right now POSIX CPU timers use task::exit_state to check whether a task is
exiting. That works correctly, but exit_state is set later in do_exit() and
too late for allowing to cleanup POSIX timers earlier.

It does not matter in case of exit whether the cutoff is a bit earlier.

Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxx>
---
 kernel/time/posix-cpu-timers.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -1505,7 +1505,7 @@ void run_posix_cpu_timers(void)
 	 * posix_cpu_timer_del() may fail to lock_task_sighand(tsk) and
 	 * miss timer->it.cpu.firing != 0.
 	 */
-	if (tsk->exit_state)
+	if (tsk->flags & PF_EXITING)
 		return;
 
 	/*