[tip: timers/core] posix-cpu-timers: Use PF_EXITING to indicate exit

[tip-bot2 for Thomas Gleixner]

The following commit has been merged into the timers/core branch of tip:

Commit-ID:     760ad335d600b1d45f05bc5fad59c05d909710be
Gitweb:        https://git.kernel.org/tip/760ad335d600b1d45f05bc5fad59c05d909710be
Author:        Thomas Gleixner <tglx@xxxxxxxxxx>
AuthorDate:    Fri, 11 Sep 2026 11:09:35 +02:00
Committer:     Thomas Gleixner <tglx@xxxxxxxxxx>
CommitterDate: Wed, 16 Sep 2026 18:44:04 +02:00

posix-cpu-timers: Use PF_EXITING to indicate exit

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>
Tested-by: Kijo Park <red993688@xxxxxxxxx>
Reviewed-by: Frederic Weisbecker <frederic@xxxxxxxxxx>
Link: https://patch.msgid.link/20260911090541.837831386@xxxxxxxxxx
---
 kernel/time/posix-cpu-timers.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index e635834..cf4bd1f 100644
--- 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;
 
 	/*