From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sun, 20 Feb 2022 20:40:20 +0000 (-0800)
Subject: Merge tag 'sched_urgent_for_v5.17_rc5' of git://git.kernel.org/pub/scm/linux/kernel... 
X-Git-Tag: baikal/aarch64/sdk6.1~4624
X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=8a871e6dde8551910a94e9b62945425b5b58dd8f;p=kernel.git

Merge tag 'sched_urgent_for_v5.17_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fix from Borislav Petkov:
 "Fix task exposure order when forking tasks"

* tag 'sched_urgent_for_v5.17_rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched: Fix yet more sched_fork() races
---

8a871e6dde8551910a94e9b62945425b5b58dd8f
diff --cc kernel/fork.c
index bfa933473ff3f,c607d238fc23b..a024bf6254df8
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@@ -2371,11 -2386,8 +2382,11 @@@ static __latent_entropy struct task_str
  	syscall_tracepoint_update(p);
  	write_unlock_irq(&tasklist_lock);
  
 +	if (pidfile)
 +		fd_install(pidfd, pidfile);
 +
  	proc_fork_connector(p);
- 	sched_post_fork(p, args);
+ 	sched_post_fork(p);
  	cgroup_post_fork(p, args);
  	perf_event_fork(p);