linux-kernel - Re: [Patch] pipe: use file_update_time() when hold i

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Message-Id: <20090720141150.e9d081ca.akpm@linux-foundation.org>
Date:	Mon, 20 Jul 2009 14:11:50 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Amerigo Wang <amwang@...hat.com>
Cc:	linux-kernel@...r.kernel.org, heiko.carstens@...ibm.com,
	amwang@...hat.com, linux-fsdevel@...r.kernel.org,
	viro@...iv.linux.org.uk, mszeredi@...e.cz
Subject: Re: [Patch] pipe: use file_update_time() when hold i_mutex

On Mon, 6 Jul 2009 01:35:30 -0400
Amerigo Wang <amwang@...hat.com> wrote:

> 
> file_update_time() should be called with i_mutex held,
> move it before mutex_unlock().
> 

Why do you believe that file_update_time() needs i_mutex?
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