linux-kernel - Re: [PATCH R2 5/7] xen/balloon: Protect before CPU exhaust by event/x process

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Message-ID: <20101230220228.GA17191@router-fw-old.local.net-space.pl>
Date:	Thu, 30 Dec 2010 23:02:28 +0100
From:	Daniel Kiper <dkiper@...-space.pl>
To:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc:	Daniel Kiper <dkiper@...-space.pl>, ian.campbell@...rix.com,
	akpm@...ux-foundation.org, andi.kleen@...el.com,
	haicheng.li@...ux.intel.com, fengguang.wu@...el.com,
	jeremy@...p.org, dan.magenheimer@...cle.com, v.tolstov@...fip.ru,
	xen-devel@...ts.xensource.com, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: [PATCH R2 5/7] xen/balloon: Protect before CPU exhaust by event/x process

Hi,

On Thu, Dec 30, 2010 at 11:26:11AM -0500, Konrad Rzeszutek Wilk wrote:
> > -static int increase_reservation(unsigned long nr_pages)
> > +static enum bp_state increase_reservation(unsigned long nr_pages)
> >  {
> > +	enum bp_state state = BP_DONE;
> > +	int rc;
> >  	unsigned long  pfn, i, flags;
> >  	struct page   *page;
> > -	long           rc;
>
> How come? Is it just a cleanup?

I forgot to move it to separate patch. When I was working
on protection before CPU exhaust I discovered that
HYPERVISOR_memory_op() returns int and rc could be
declared as int not as long.

Daniel
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