ext4: Use lowercase names of quota functions

Use lowercase names of quota functions instead of old uppercase ones.

Signed-off-by: Jan Kara <jack@suse.cz>
Acked-by: Mingming Cao <cmm@us.ibm.com>
CC: linux-ext4@vger.kernel.org
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 157ce65..62b31c2 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -490,7 +490,7 @@
 		error = ext4_handle_dirty_metadata(handle, inode, bh);
 		if (IS_SYNC(inode))
 			ext4_handle_sync(handle);
-		DQUOT_FREE_BLOCK(inode, 1);
+		vfs_dq_free_block(inode, 1);
 		ea_bdebug(bh, "refcount now=%d; releasing",
 			  le32_to_cpu(BHDR(bh)->h_refcount));
 		if (ce)
@@ -784,7 +784,7 @@
 				/* The old block is released after updating
 				   the inode. */
 				error = -EDQUOT;
-				if (DQUOT_ALLOC_BLOCK(inode, 1))
+				if (vfs_dq_alloc_block(inode, 1))
 					goto cleanup;
 				error = ext4_journal_get_write_access(handle,
 								      new_bh);
@@ -860,7 +860,7 @@
 	return error;
 
 cleanup_dquot:
-	DQUOT_FREE_BLOCK(inode, 1);
+	vfs_dq_free_block(inode, 1);
 	goto cleanup;
 
 bad_block: