From mboxrd@z Thu Jan  1 00:00:00 1970
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: Re: [PATCH 0/3] mmap vs NFS
Date: Wed, 14 Nov 2007 21:19:22 +0100
Message-ID: <1195071564.22457.0.camel@lappy>
References: <20071114200136.009242000@chello.nl>
Mime-Version: 1.0
Content-Type: text/plain
Content-Transfer-Encoding: 7bit
Cc: linux-mm@kvack.org, linux-arch@vger.kernel.org,
	linux-fsdevel@vger.kernel.org,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Trond Myklebust <trond.myklebust@fys.uio.no>,
	Nick Piggin <npiggin@suse.de>, Hugh Dickins <hugh@veritas.com>
To: linux-kernel@vger.kernel.org
Return-path: <linux-fsdevel-owner@vger.kernel.org>
Received: from pentafluge.infradead.org ([213.146.154.40]:45828 "EHLO
	pentafluge.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S1753525AbXKNUUH (ORCPT
	<rfc822;linux-fsdevel@vger.kernel.org>);
	Wed, 14 Nov 2007 15:20:07 -0500
In-Reply-To: <20071114200136.009242000@chello.nl>
Sender: linux-fsdevel-owner@vger.kernel.org
List-Id: linux-fsdevel.vger.kernel.org


Seems I forgot to mention this is an RFC :-)

On Wed, 2007-11-14 at 21:01 +0100, Peter Zijlstra wrote:
> Currently there is an AB-BA deadlock in NFS mmap.
> 
> nfs_file_mmap() can take i_mutex, while holding mmap_sem, whereas the regular
> locking order is the other way around.
> 
> This patch-set attempts to solve this issue.
>