vfs: misc struct path constification

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/utimes.c b/fs/utimes.c
index 22307cd..5fdb505 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -48,7 +48,7 @@ static bool nsec_valid(long nsec)
 	return nsec >= 0 && nsec <= 999999999;
 }
 
-static int utimes_common(struct path *path, struct timespec *times)
+static int utimes_common(const struct path *path, struct timespec *times)
 {
 	int error;
 	struct iattr newattrs;