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

Vasily Averin
2022-06-27T02:12:55Z

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-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org>
---
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