From: Thomas Gleixner <tglx@kernel.org>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Hyunwoo Kim <imv4bel@gmail.com>, Oleg Nesterov <oleg@redhat.com>,
Frederic Weisbecker <frederic@kernel.org>,
Christian Brauner <brauner@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
John Stultz <jstultz@google.com>, Ingo Molnar <mingo@kernel.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
"Eric W. Biederman" <ebiederm@xmission.com>
Subject: [patch 6/8] posix-cpu-timers: Use PF_EXITING to indicate exit
Date: Fri, 04 Sep 2026 13:22:44 +0200 [thread overview]
Message-ID: <20260904112202.348410055@kernel.org> (raw)
In-Reply-To: 20260904112100.683893401@kernel.org
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@kernel.org>
---
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;
/*
next prev parent reply other threads:[~2026-09-04 11:22 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-04 11:22 [patch 0/8] exec/exit: POSIX timer related bugfixes and related cleanups Thomas Gleixner
2026-09-04 11:22 ` [patch 1/8] signal: Prevent exec() race Thomas Gleixner
2026-09-04 11:35 ` Oleg Nesterov
2026-09-05 7:34 ` Thomas Gleixner
2026-09-05 7:50 ` Frederic Weisbecker
2026-09-05 11:22 ` Thomas Gleixner
2026-09-04 11:22 ` [patch 2/8] exec: Cleanup POSIX timers right after de_thread() Thomas Gleixner
2026-09-04 11:22 ` [patch 3/8] posix-timers: Move posixtimer_exec_cleanup() out of exec.c Thomas Gleixner
2026-09-04 11:22 ` [patch 4/8] posix-timers: Move POSIX timer group exit related code out of do_exit() Thomas Gleixner
2026-09-04 11:22 ` [patch 5/8] posix-cpu-timers: Move inlines out of public header Thomas Gleixner
2026-09-04 11:22 ` Thomas Gleixner [this message]
2026-09-04 11:22 ` [patch 7/8] posix-cpu-timers: Prevent enqueueing when PF_EXITING is set Thomas Gleixner
2026-09-04 12:06 ` Eric W. Biederman
2026-09-04 15:47 ` Eric W. Biederman
2026-09-05 7:50 ` Thomas Gleixner
2026-09-04 11:22 ` [patch 8/8] posix-timers: Handle exit in do_exit() completely Thomas Gleixner
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