linux-kernel - Re: [RESEND PATCH v5 1/4] zram: Fix deadlock bug in partial write

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Message-ID: <20130131054123.GE23548@blaptop>
Date:	Thu, 31 Jan 2013 14:41:23 +0900
From:	Minchan Kim <minchan@...nel.org>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Dan Magenheimer <dan.magenheimer@...cle.com>,
	Nitin Gupta <ngupta@...are.org>,
	Konrad Rzeszutek Wilk <konrad@...nok.org>,
	Seth Jennings <sjenning@...ux.vnet.ibm.com>,
	Pekka Enberg <penberg@...helsinki.fi>, stable@...r.kernel.org,
	Jerome Marchand <jmarchan@...hat.com>
Subject: Re: [RESEND PATCH v5 1/4] zram: Fix deadlock bug in partial write

On Wed, Jan 30, 2013 at 05:21:12PM +0900, Minchan Kim wrote:
> Hi Greg,
> 
> On Tue, Jan 29, 2013 at 11:20:06PM -0500, Greg Kroah-Hartman wrote:
> > On Mon, Jan 28, 2013 at 09:38:23AM +0900, Minchan Kim wrote:
> > > Now zram allocates new page with GFP_KERNEL in zram I/O path
> > > if IO is partial. Unfortunately, It may cuase deadlock with
> > > reclaim path so this patch solves the problem.
> > > 
> > > Cc: stable@...r.kernel.org
> > > Cc: Jerome Marchand <jmarchan@...hat.com>
> > > Acked-by: Nitin Gupta <ngupta@...are.org>
> > > Signed-off-by: Minchan Kim <minchan@...nel.org>
> > > ---
> > >  drivers/staging/zram/zram_drv.c |    4 ++--
> > >  1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > Due to the discussion on this series, I don't know what patch to apply,
> > so care to do a v6 of this with the patches that everyone has finally
> > agreed on?
> 
> I already sent v6.
> https://lkml.org/lkml/2013/1/29/680

Greg, If you have a trouble to merge it, let me know it.
Will resend it when linux-next comes in.

Thanks.
-- 
Kind regards,
Minchan Kim
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