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

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Message-ID: <20130204015333.GA6548@kroah.com>
Date:	Sun, 3 Feb 2013 17:53:33 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Minchan Kim <minchan@...nel.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

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.

thanks,

greg k-h
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