From: Oleg Nesterov <oleg@xxxxxxxxxx> [ Upstream commit 7904e53ed5a20fc678c01d5d1b07ec486425bb6a ] do/while_each_thread should be avoided when possible. Link: https://lkml.kernel.org/r/20230909164501.GA11581@xxxxxxxxxx Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx> Cc: Eric W. Biederman <ebiederm@xxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Stable-dep-of: 7601df8031fd ("fs/proc: do_task_stat: use sig->stats_lock to gather the threads/children stats") Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- fs/proc/array.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/fs/proc/array.c b/fs/proc/array.c index 1b0d78dfd20f9..bcb645627991e 100644 --- a/fs/proc/array.c +++ b/fs/proc/array.c @@ -526,12 +526,13 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns, /* add up live thread stats at the group level */ if (whole) { - struct task_struct *t = task; - do { + struct task_struct *t; + + __for_each_thread(sig, t) { min_flt += t->min_flt; maj_flt += t->maj_flt; gtime += task_gtime(t); - } while_each_thread(task, t); + } min_flt += sig->min_flt; maj_flt += sig->maj_flt; -- 2.43.0
