It's enough to check that dentries match; if path->dentry is equal to
m->mnt_root, superblocks will match as well.
Reviewed-by: Christian Brauner <brauner@xxxxxxxxxx>
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
fs/namespace.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/fs/namespace.c b/fs/namespace.c
index 86c6dd432b13..bdb33270ac6e 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -3798,8 +3798,7 @@ int finish_automount(struct vfsmount *m, const struct path *path)
mnt = real_mount(m);
- if (m->mnt_sb == path->mnt->mnt_sb &&
- m->mnt_root == dentry) {
+ if (m->mnt_root == path->dentry) {
err = -ELOOP;
goto discard;
}
--
2.47.2
