overlayfs: use uuid_t instead of uuid_be

Signed-off-by: NChristoph Hellwig <hch@lst.de>
Reviewed-by: NAmir Goldstein <amir73il@gmail.com>
Reviewed-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

fs/overlayfs/copy_up.c

@@ -233,7 +233,7 @@ int ovl_set_attr(struct dentry *upperdentry, struct kstat *stat)
 	return err;
 }
 
-static struct ovl_fh *ovl_encode_fh(struct dentry *lower, uuid_be *uuid)
+static struct ovl_fh *ovl_encode_fh(struct dentry *lower, uuid_t *uuid)
 {
 	struct ovl_fh *fh;
 	int fh_type, fh_len, dwords;

fs/overlayfs/overlayfs.h

@@ -56,7 +56,7 @@ struct ovl_fh {
 	u8 len;		/* size of this header + size of fid */
 	u8 flags;	/* OVL_FH_FLAG_* */
 	u8 type;	/* fid_type of fid */
-	uuid_be uuid;	/* uuid of filesystem */
+	uuid_t uuid;	/* uuid of filesystem */
 	u8 fid[0];	/* file identifier */
 } __packed;