ovl_is_real_file: constify realpath argument

Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c
index f5b8877d5fe275830cd96db657de75187a2a88ae..fc52c796061dc8bfe620abb6df6e7f77c0693442 100644 (file)
--- a/fs/overlayfs/file.c
+++ b/fs/overlayfs/file.c
@@ -120,7 +120,7 @@ static bool ovl_is_real_file(const struct file *realfile,
 }
 
 static struct file *ovl_real_file_path(const struct file *file,
-                                      struct path *realpath)
+                                      const struct path *realpath)
 {
        struct ovl_file *of = file->private_data;
        struct file *realfile = of->realfile;