linux-kernel - Re: NFS lockdep lock misordering mmap_sem<->i_mutex

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Message-ID: <20091223163203.GG20539@basil.fritz.box>
Date:	Wed, 23 Dec 2009 17:32:03 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Trond Myklebust <trond.myklebust@....uio.no>
Cc:	Al Viro <viro@...IV.linux.org.uk>,
	Andi Kleen <andi@...stfloor.org>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	linux-kernel@...r.kernel.org
Subject: Re: NFS lockdep lock misordering mmap_sem<->i_mutex_key with
	2.6.32-git1

> The scenario would be that the writing thread triggers a page fault
> (through __get_user()) when holding the i_mutex, while the other thread
> is trying to grab the i_mutex within the mmap() call.

Hi Trond,

What's the state of this bug? Are you going to accept my patch
or do you have a different one in the pipeline?

Thanks,

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only.
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