This fixes the failure path, so we won't set the visible flag though
the mount is failed.
Signed-off-by: Li Zefan <lizefan@xxxxxxxxxx>
---
kernel/cgroup.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index dabc486..0b6b44e 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -1671,7 +1671,6 @@ static struct dentry *cgroup_mount(struct file_system_type *fs_type,
/* look for a matching existing root */
if (!opts.subsys_mask && !opts.none && !opts.name) {
- cgrp_dfl_root_visible = true;
root = &cgrp_dfl_root;
cgroup_get(&root->cgrp);
ret = 0;
@@ -1770,6 +1769,9 @@ out_free:
dentry = kernfs_mount(fs_type, flags, root->kf_root, &new_sb);
if (IS_ERR(dentry) || !new_sb)
cgroup_put(&root->cgrp);
+ else if (root == &cgrp_dfl_root)
+ cgrp_dfl_root_visible = true;
+
return dentry;
}
--
1.8.0.2
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