cgroup: Avoid unnecessary looping in cgroup_no_v1()

Xiu Jianfeng · htejun · commit 19fc8a896565 · 2024-04-19T05:43:36.000-10:00
No need to continue the for_each_subsys loop after the token matches the
name of subsys and cgroup_no_v1_mask is set.

Signed-off-by: Xiu Jianfeng &lt;xiujianfeng@huawei.com&gt;
Signed-off-by: Tejun Heo &lt;tj@kernel.org&gt;
diff --git a/kernel/cgroup/cgroup-v1.c b/kernel/cgroup/cgroup-v1.c
@@ -1335,6 +1335,7 @@ static int __init cgroup_no_v1(char *str)
 				continue;
 
 			cgroup_no_v1_mask |= 1 << i;
+			break;
 		}
 	}
 	return 1;

Original file line number	Diff line number	Diff line change
`@@ -1335,6 +1335,7 @@ static int __init cgroup_no_v1(char *str)`
`1335`	`1335`	`continue;`
`1336`	`1336`
`1337`	`1337`	`cgroup_no_v1_mask \|= 1 << i;`
	`1338`	`+ break;`
`1338`	`1339`	`}`
`1339`	`1340`	`}`
`1340`	`1341`	`return 1;`