releases/4.19.122/cgroup-netclassid-remove-double-cond_resched.patch

From 526f3d96b8f83b1b13d73bd0b5c79cc2c487ec8e Mon Sep 17 00:00:00 2001
From: Jiri Slaby <jslaby@suse.cz>
Date: Mon, 20 Apr 2020 09:04:24 +0200
Subject: cgroup, netclassid: remove double cond_resched

From: Jiri Slaby <jslaby@suse.cz>

commit 526f3d96b8f83b1b13d73bd0b5c79cc2c487ec8e upstream.

Commit 018d26fcd12a ("cgroup, netclassid: periodically release file_lock
on classid") added a second cond_resched to write_classid indirectly by
update_classid_task. Remove the one in write_classid.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Dmitry Yakunin <zeil@yandex-team.ru>
Cc: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 net/core/netclassid_cgroup.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/net/core/netclassid_cgroup.c
+++ b/net/core/netclassid_cgroup.c
@@ -131,10 +131,8 @@ static int write_classid(struct cgroup_s
 	cs->classid = (u32)value;
 
 	css_task_iter_start(css, 0, &it);
-	while ((p = css_task_iter_next(&it))) {
+	while ((p = css_task_iter_next(&it)))
 		update_classid_task(p, cs->classid);
-		cond_resched();
-	}
 	css_task_iter_end(&it);
 
 	return 0;