filt_timerexpire_l(): re-insert restarted timer into head instead of tail

of the resumed timers list, so that kqtimer_proc_continue() does not
iterated into the same timer again.

PR:	293141
Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
Differential revision:	https://reviews.freebsd.org/D55264

This commit is contained in:

Konstantin Belousov

2026-02-12 22:24:13 +02:00

parent bf149f2e88

commit 75a30ea09f

1 changed files with 6 additions and 1 deletions

									
										sys/kern/kern_event.c
									
		+6
		-1
	
												View File
												
				@@ -873,8 +873,13 @@ filt_timerexpire_l(struct knote *kn, bool proc_locked)

							PROC_LOCK(p);

						if (P_SHOULDSTOP(p) || P_KILLED(p)) {

							if ((kc->flags & KQ_TIMER_CB_ENQUEUED) == 0) {

								/*

								 * Insert into head so that

								 * kqtimer_proc_continue() does not

								 * iterate into us again.

								 */

								kc->flags |= KQ_TIMER_CB_ENQUEUED;

								TAILQ_INSERT_TAIL(&p->p_kqtim_stop, kc, link);

								TAILQ_INSERT_HEAD(&p->p_kqtim_stop, kc, link);

							}

							if (!proc_locked)

								PROC_UNLOCK(p);