git: 171f0832c5b1 - main - EVFILT_TIMER: intialize stop timer list in type-stable proc init, instead of fork

The branch main has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=171f0832c5b15f2f66d2fe59967348a42814b0c1

commit 171f0832c5b15f2f66d2fe59967348a42814b0c1
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2023-11-28 15:42:49 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2023-11-28 17:29:58 +0000

    EVFILT_TIMER: intialize stop timer list in type-stable proc init, instead of fork
    
    Since kqueue timer may exist after the process that created it exited
    (same scenario with rfork(2) as in PR 275286), make the tailq
    p_kqtim_stop accessed by filt_timerdetach() type-stable.
    
    Noted and reviewed by:  markj
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week
    Differential revision:  https://reviews.freebsd.org/D42777
---
 sys/kern/kern_fork.c | 1 -
 sys/kern/kern_proc.c | 1 +
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/kern/kern_fork.c b/sys/kern/kern_fork.c
index 7b9aa4cd61d1..c7b2b1195841 100644
--- a/sys/kern/kern_fork.c
+++ b/sys/kern/kern_fork.c
@@ -622,7 +622,6 @@ do_fork(struct thread *td, struct fork_req *fr, struct proc *p2, struct thread *
 	LIST_INIT(&p2->p_orphans);
 
 	callout_init_mtx(&p2->p_itcallout, &p2->p_mtx, 0);
-	TAILQ_INIT(&p2->p_kqtim_stop);
 
 	/*
 	 * This begins the section where we must prevent the parent
diff --git a/sys/kern/kern_proc.c b/sys/kern/kern_proc.c
index 2c115202636e..8a396e208ff6 100644
--- a/sys/kern/kern_proc.c
+++ b/sys/kern/kern_proc.c
@@ -275,6 +275,7 @@ proc_init(void *mem, int size, int flags)
 	EVENTHANDLER_DIRECT_INVOKE(process_init, p);
 	p->p_stats = pstats_alloc();
 	p->p_pgrp = NULL;
+	TAILQ_INIT(&p->p_kqtim_stop);
 	return (0);
 }