vfs: namei: use path_equal() in follow_dotdot()

Use path_equal() to detect whether we're already in root.

Signed-off-by: Danilo Krummrich <danilokrummrich@dk-develop.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 1 insertions, 3 deletions

diff --git a/fs/namei.c b/fs/namei.c
index 186bd2464fd5..6f0dc40f88c5 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1438,10 +1438,8 @@ static int path_parent_directory(struct path *path)
 static int follow_dotdot(struct nameidata *nd)
 {
         while(1) {
-                if (nd->path.dentry == nd->root.dentry &&
-                    nd->path.mnt == nd->root.mnt) {
+                if (path_equal(&nd->path, &nd->root))
                         break;
-                }
                 if (nd->path.dentry != nd->path.mnt->mnt_root) {
                         int ret = path_parent_directory(&nd->path);
                         if (ret)