linux-kernel - Re: RFC: Fix f_flags races without the BKL

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Message-ID: <20090102190902.GA25969@redhat.com>
Date:	Fri, 2 Jan 2009 20:09:03 +0100
From:	Oleg Nesterov <oleg@...hat.com>
To:	Al Viro <viro@...IV.linux.org.uk>
Cc:	Jonathan Corbet <corbet@....net>,
	LKML <linux-kernel@...r.kernel.org>,
	Andi Kleen <andi@...stfloor.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>, bfields@...ldses.org,
	xfs-masters@....sgi.com
Subject: Re: RFC: Fix f_flags races without the BKL

On 01/02, Al Viro wrote:
>
> Bloating with mutex is over the top, indeed, but why can't we simply keep
> a pointer to fasync_struct in there?  Do we ever have a struct file with
> several fasync_struct?

pipe_rdwr_fasync() ?

Oleg.

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