linux-kernel - Re: [PATCH] aio: clean up aio ring in the fail path

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Message-ID: <20131206153603.GE13581@kvack.org>
Date:	Fri, 6 Dec 2013 10:36:03 -0500
From:	Benjamin LaHaise <bcrl@...ck.org>
To:	Dave Jones <davej@...hat.com>, Gu Zheng <guz.fnst@...fujitsu.com>,
	linux-aio@...ck.org, fsdevel <linux-fsdevel@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Al Viro <viro@...iv.linux.org.uk>, Kent <kmo@...erainc.com>,
	Kristian Nielsen <knielsen@...elsen-hq.org>
Subject: Re: [PATCH] aio: clean up aio ring in the fail path

On Fri, Dec 06, 2013 at 10:34:13AM -0500, Dave Jones wrote:
> On Fri, Dec 06, 2013 at 10:26:54AM -0500, Benjamin LaHaise wrote:
>  > On Wed, Dec 04, 2013 at 06:19:06PM +0800, Gu Zheng wrote:
>  > > Clean up the aio ring file in the fail path of aio_setup_ring
>  > > and ioctx_alloc. And maybe it can fix the GPF issue reported by
>  > > Dave Jones:
>  > > https://lkml.org/lkml/2013/11/25/898
>  > 
>  > Good catch.  I've applied this to my aio-next tree.  It does indeed look 
>  > like it could be the cause of Dave's GPF -- I'll try to trigger it with 
>  > some other kernel debug options on and see if the EAGAIN failure case can 
>  > trip it up.
> 
> I think I forgot to reply and let you know this seems to fix it for me.

Excellent!  I'll send this out and get it queued up for -stable as well.

		-ben

> 	Dave

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