--- /dev/null
+From 7904e53ed5a20fc678c01d5d1b07ec486425bb6a Mon Sep 17 00:00:00 2001
+From: Oleg Nesterov <oleg@redhat.com>
+Date: Sat, 9 Sep 2023 18:45:01 +0200
+Subject: fs/proc: do_task_stat: use __for_each_thread()
+
+From: Oleg Nesterov <oleg@redhat.com>
+
+commit 7904e53ed5a20fc678c01d5d1b07ec486425bb6a upstream.
+
+do/while_each_thread should be avoided when possible.
+
+Link: https://lkml.kernel.org/r/20230909164501.GA11581@redhat.com
+Signed-off-by: Oleg Nesterov <oleg@redhat.com>
+Cc: Eric W. Biederman <ebiederm@xmission.com>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Stable-dep-of: 7601df8031fd ("fs/proc: do_task_stat: use sig->stats_lock to gather the threads/children stats")
+Cc: stable@vger.kernel.org
+[ mheyne: adjusted context ]
+Signed-off-by: Maximilian Heyne <mheyne@amazon.de>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ fs/proc/array.c | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+--- a/fs/proc/array.c
++++ b/fs/proc/array.c
+@@ -512,18 +512,18 @@ static int do_task_stat(struct seq_file
+ cgtime = sig->cgtime;
+
+ if (whole) {
+- struct task_struct *t = task;
++ struct task_struct *t;
+
+ min_flt = sig->min_flt;
+ maj_flt = sig->maj_flt;
+ gtime = sig->gtime;
+
+ rcu_read_lock();
+- do {
++ __for_each_thread(sig, t) {
+ min_flt += t->min_flt;
+ maj_flt += t->maj_flt;
+ gtime += task_gtime(t);
+- } while_each_thread(task, t);
++ }
+ rcu_read_unlock();
+
+ thread_group_cputime_adjusted(task, &utime, &stime);