From: Thomas Gleixner <tglx@kernel.org>
To: LKML <linux-kernel@vger.kernel.org>
Cc: "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 V2 6/8] posix-cpu-timers: Use PF_EXITING to indicate exit
Date: Sat, 05 Sep 2026 20:59:24 +0200 [thread overview]
Message-ID: <20260905185839.920634857@kernel.org> (raw)
In-Reply-To: <20260905181551.738186850@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:[~2026-09-05 18:59 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-05 18:58 [patch V2 0/8] exec/exit: POSIX timer related bugfixes and related cleanups Thomas Gleixner
2026-09-05 18:59 ` [patch V2 1/8] signal: Prevent exec() race Thomas Gleixner
2026-09-06 13:17 ` Oleg Nesterov
2026-09-06 22:39 ` Eric W. Biederman
2026-09-06 23:28 ` Oleg Nesterov
2026-09-07 11:26 ` Thomas Gleixner
2026-09-07 12:31 ` Frederic Weisbecker
2026-09-07 15:26 ` Thomas Gleixner
2026-09-07 20:15 ` Frederic Weisbecker
2026-09-07 22:28 ` Thomas Gleixner
2026-09-08 10:15 ` Frederic Weisbecker
2026-09-09 0:03 ` Oleg Nesterov
2026-09-09 9:17 ` Frederic Weisbecker
2026-09-09 8:04 ` Peter Zijlstra
2026-09-09 9:08 ` Thomas Gleixner
2026-09-09 9:55 ` Peter Zijlstra
2026-09-09 10:20 ` Peter Zijlstra
2026-09-09 11:31 ` Thomas Gleixner
2026-09-09 12:13 ` Frederic Weisbecker
2026-09-09 12:45 ` Peter Zijlstra
2026-09-09 12:51 ` Peter Zijlstra
2026-09-09 13:45 ` Thomas Gleixner
2026-09-09 15:48 ` Frederic Weisbecker
2026-09-09 16:00 ` Frederic Weisbecker
2026-09-09 14:33 ` Alan Stern
2026-09-09 14:45 ` Frederic Weisbecker
2026-09-09 19:28 ` Alan Stern
2026-09-09 20:49 ` Thomas Gleixner
2026-09-09 21:11 ` Alan Stern
2026-09-10 13:21 ` Frederic Weisbecker
2026-09-10 13:28 ` Peter Zijlstra
2026-09-11 9:58 ` Frederic Weisbecker
2026-09-11 10:22 ` Peter Zijlstra
2026-09-11 12:36 ` Frederic Weisbecker
2026-09-11 14:52 ` Alan Stern
2026-09-10 15:26 ` Alan Stern
2026-09-11 12:27 ` Frederic Weisbecker
2026-09-11 19:05 ` Alan Stern
2026-09-16 13:25 ` Frederic Weisbecker
2026-09-09 10:18 ` Frederic Weisbecker
2026-09-09 9:11 ` Frederic Weisbecker
2026-09-05 18:59 ` [patch V2 2/8] exec: Cleanup POSIX timers right after de_thread() Thomas Gleixner
2026-09-06 13:21 ` Oleg Nesterov
2026-09-07 22:13 ` Frederic Weisbecker
2026-09-05 18:59 ` [patch V2 3/8] posix-timers: Move posixtimer_exec_cleanup() out of exec.c Thomas Gleixner
2026-09-10 13:50 ` Frederic Weisbecker
2026-09-05 18:59 ` [patch V2 4/8] posix-timers: Move POSIX timer group exit related code out of do_exit() Thomas Gleixner
2026-09-10 13:59 ` Frederic Weisbecker
2026-09-05 18:59 ` [patch V2 5/8] posix-cpu-timers: Move inlines out of public header Thomas Gleixner
2026-09-10 14:00 ` Frederic Weisbecker
2026-09-05 18:59 ` Thomas Gleixner [this message]
2026-09-05 18:59 ` [patch V2 7/8] posix-cpu-timers: Prevent enqueueing when PF_EXITING is set Thomas Gleixner
2026-09-06 16:26 ` Oleg Nesterov
2026-09-07 12:20 ` Thomas Gleixner
2026-09-05 18:59 ` [patch V2 8/8] posix-timers: Handle exit in do_exit() completely Thomas Gleixner
2026-09-06 16:40 ` Oleg Nesterov
2026-09-07 12:27 ` Thomas Gleixner
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