linux-kernel - Re: [PATCH v6 4/4] zram: get rid of lockdep warning

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Message-ID: <20130204034208.GF2688@blaptop>
Date:	Mon, 4 Feb 2013 12:42:08 +0900
From:	Minchan Kim <minchan@...nel.org>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Nitin Gupta <ngupta@...are.org>,
	Seth Jennings <sjenning@...ux.vnet.ibm.com>,
	Konrad Rzeszutek Wilk <konrad@...nok.org>,
	Dan Magenheimer <dan.magenheimer@...cle.com>,
	Pekka Enberg <penberg@...helsinki.fi>, jmarchan@...hat.com
Subject: Re: [PATCH v6 4/4] zram: get rid of lockdep warning

Hi Greg,

On Sun, Feb 03, 2013 at 05:53:33PM -0800, Greg Kroah-Hartman wrote:
> On Wed, Jan 30, 2013 at 11:41:42AM +0900, Minchan Kim wrote:
> > Lockdep complains about recursive deadlock of zram->init_lock.
> > [1] made it false positive because we can't request IO to zram
> > before setting disksize. Anyway, we should shut lockdep up to
> > avoid many reporting from user.
> > 
> > [1] : zram: force disksize setting before using zram
> > 
> > Acked-by: Jerome Marchand <jmarchand@...hat.com>
> > Acked-by: Nitin Gupta <ngupta@...are.org>
> > Signed-off-by: Minchan Kim <minchan@...nel.org>
> > ---
> >  drivers/staging/zram/zram_drv.c   |  189 +++++++++++++++++++------------------
> >  drivers/staging/zram/zram_drv.h   |   12 ++-
> >  drivers/staging/zram/zram_sysfs.c |   11 ++-
> >  3 files changed, 116 insertions(+), 96 deletions(-)
> 
> This patch fails to apply to my staging-next branch, but the three
> others did, so I took them.  Please refresh this one and resend if you
> want it applied.

We must have missed each other.
A few hours ago, I sent to you v7 based on next-20130202.
https://lkml.org/lkml/2013/2/3/319

v7 includes acks of Jerome and resolve conflict with latest staging.
I believe it is okay to apply your tree.

Please reapply v7 instead of v6.

Thanks.
> 
> thanks,
> 
> greg k-h
> 
> --
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-- 
Kind regards,
Minchan Kim
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