From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754356Ab1D0GHs (ORCPT ); Wed, 27 Apr 2011 02:07:48 -0400 Received: from bombadil.infradead.org ([18.85.46.34]:48604 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754162Ab1D0GHT (ORCPT ); Wed, 27 Apr 2011 02:07:19 -0400 Date: Wed, 27 Apr 2011 02:06:42 -0400 From: Christoph Hellwig To: Andrew Morton Cc: Wu Fengguang , Christoph Hellwig , Jan Kara , Mel Gorman , Dave Chinner , Trond Myklebust , Itaru Kitayama , Minchan Kim , LKML , "linux-fsdevel@vger.kernel.org" , Linux Memory Management List Subject: Re: [PATCH 1/2] split inode_wb_list_lock into bdi_writeback.list_lock Message-ID: <20110427060642.GA11727@infradead.org> References: <20110426144218.GA14862@localhost> <20110426144209.06317674.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110426144209.06317674.akpm@linux-foundation.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Apr 26, 2011 at 02:42:09PM -0700, Andrew Morton wrote: > Has this patch been well tested under lockdep? Yes. There's only two places locking two bdis, and both use the bdi_lock_two helper which imposes an ordering, and tells lockdep about it.