qstr: constify instances in overlayfs

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Orabug: 26401569

(backport upstream commit 29c42e80ba5b1e59a4f427b44e2bdebd347b9409)

Signed-off-by: Shan Hai <shan.hai@oracle.com>
Reviewed-by: Somasundaram Krishnasamy <somasundaram.krishnasamy@oracle.com>

diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index 8ec4feb17f137f2ef70363b676bb9a48f7405a32..3672db4617c8e2bb81511a9c12b9d2397357c063 100644 (file)
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -317,7 +317,7 @@ static struct ovl_entry *ovl_alloc_entry(unsigned int numlower)
 
 static inline struct dentry *ovl_lookup_real(struct super_block *ovl_sb,
                                             struct dentry *dir,
-                                            struct qstr *name)
+                                            const struct qstr *name)
 {
        const struct cred *old_cred;
        struct dentry *dentry;