linux-kernel - Re: [PATCH 0/3] mmap vs NFS

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Message-Id: <1195075652.7584.61.camel@heimdal.trondhjem.org>
Date:	Wed, 14 Nov 2007 16:27:32 -0500
From:	Trond Myklebust <trond.myklebust@....uio.no>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linux-arch@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Nick Piggin <npiggin@...e.de>, Hugh Dickins <hugh@...itas.com>
Subject: Re: [PATCH 0/3] mmap vs NFS


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.

Looks good from the NFS point of view.

Acked-by: Trond Myklebust <Trond.Myklebust@...app.com>

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