[PATCH] ext2 synchronous mount fix

The optimisation for synchronous mounts was only correct for S_ISREG
files.  Directories do not pass through generic_osync_inode() and we
still need to synchronously write out their indirect blocks.

fs/ext2/inode.c

@@ -430,8 +430,12 @@ static int ext2_alloc_branch(struct inode *inode,
 		mark_buffer_dirty_inode(bh, inode);
 		/* We used to sync bh here if IS_SYNC(inode).
 		 * But we now rely upon generic_osync_inode()
-		 * and b_inode_buffers
+		 * and b_inode_buffers.  But not for directories.
 		 */
+		if (S_ISDIR(inode->i_mode) && IS_DIRSYNC(inode)) {
+			ll_rw_block(WRITE, 1, &bh);
+			wait_on_buffer(bh);
+		}
 		parent = nr;
 	}
 	if (n == num)