linux-kernel - [PATCH -next] cgroup_freezer: update comment for freezer_css

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Message-Id: <20240417035028.884560-1-xiujianfeng@huaweicloud.com>
Date: Wed, 17 Apr 2024 03:50:28 +0000
From: Xiu Jianfeng <xiujianfeng@...weicloud.com>
To: tj@...nel.org,
	lizefan.x@...edance.com,
	hannes@...xchg.org
Cc: cgroups@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH -next] cgroup_freezer: update comment for freezer_css_online()

From: Xiu Jianfeng <xiujianfeng@...wei.com>

The freezer->lock was replaced by freezer_mutex in commit e5ced8ebb10c
("cgroup_freezer: replace freezer->lock with freezer_mutex"), so the
comment here is out-of-date, update it.

Signed-off-by: Xiu Jianfeng <xiujianfeng@...wei.com>
---
 kernel/cgroup/legacy_freezer.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/cgroup/legacy_freezer.c b/kernel/cgroup/legacy_freezer.c
index 66d1708042a7..d598cc6ee92e 100644
--- a/kernel/cgroup/legacy_freezer.c
+++ b/kernel/cgroup/legacy_freezer.c
@@ -106,8 +106,7 @@ freezer_css_alloc(struct cgroup_subsys_state *parent_css)
  * @css: css being created
  *
  * We're committing to creation of @css.  Mark it online and inherit
- * parent's freezing state while holding both parent's and our
- * freezer->lock.
+ * parent's freezing state while holding cpus read lock and freezer_mutex.
  */
 static int freezer_css_online(struct cgroup_subsys_state *css)
 {
-- 
2.34.1