From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH 1/2] split inode_wb_list_lock into bdi_writeback.list_lock
Date: Wed, 27 Apr 2011 02:06:42 -0400
Message-ID: <20110427060642.GA11727@infradead.org>
References: <20110426144218.GA14862@localhost>
 <20110426144209.06317674.akpm@linux-foundation.org>
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Cc: Wu Fengguang <fengguang.wu@intel.com>,
	Christoph Hellwig <hch@infradead.org>, Jan Kara <jack@suse.cz>,
	Mel Gorman <mel@linux.vnet.ibm.com>,
	Dave Chinner <david@fromorbit.com>,
	Trond Myklebust <Trond.Myklebust@netapp.com>,
	Itaru Kitayama <kitayama@cl.bb4u.ne.jp>,
	Minchan Kim <minchan.kim@gmail.com>,
	LKML <linux-kernel@vger.kernel.org>,
	"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
	Linux Memory Management List <linux-mm@kvack.org>
To: Andrew Morton <akpm@linux-foundation.org>
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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.

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