[PATCH cgroup] cgroup: set the correct return code if hierarchy limits are reached

[Vasily Averin]

When cgroup_mkdir reaches the limits of the cgroup hierarchy, it should
not return -EAGAIN, but instead react similarly to reaching the global
limit.

Signed-off-by: Vasily Averin <vvs@xxxxxxxxxx>
---
 kernel/cgroup/cgroup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index 1be0f81fe8e1..243239553ea3 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -5495,7 +5495,7 @@ int cgroup_mkdir(struct kernfs_node *parent_kn, const char *name, umode_t mode)
 		return -ENODEV;
 
 	if (!cgroup_check_hierarchy_limits(parent)) {
-		ret = -EAGAIN;
+		ret = -ENOSPC;
 		goto out_unlock;
 	}
 
-- 
2.36.1