linux-kernel - Re: [-mm PATCH 4/8] Memory controller memory accounting (v2)

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Date:	Tue, 10 Jul 2007 17:44:27 +0900 (JST)
From:	yamamoto@...inux.co.jp (YAMAMOTO Takashi)
To:	balbir@...ux.vnet.ibm.com
Cc:	svaidy@...ux.vnet.ibm.com, akpm@...ux-foundation.org,
	xemul@...nvz.org, a.p.zijlstra@...llo.nl,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	ebiederm@...ssion.com, containers@...ts.osdl.org, menage@...gle.com
Subject: Re: [-mm PATCH 4/8] Memory controller memory accounting (v2)

> On 7/10/07, YAMAMOTO Takashi <yamamoto@...inux.co.jp> wrote:
> > hi,
> >
> > > diff -puN mm/memory.c~mem-control-accounting mm/memory.c
> > > --- linux-2.6.22-rc6/mm/memory.c~mem-control-accounting       2007-07-05 13:45:18.000000000 -0700
> > > +++ linux-2.6.22-rc6-balbir/mm/memory.c       2007-07-05 13:45:18.000000000 -0700
> >
> > > @@ -1731,6 +1736,9 @@ gotten:
> > >               cow_user_page(new_page, old_page, address, vma);
> > >       }
> > >
> > > +     if (mem_container_charge(new_page, mm))
> > > +             goto oom;
> > > +
> > >       /*
> > >        * Re-check the pte - we dropped the lock
> > >        */
> >
> > it seems that the page will be leaked on error.
> 
> You mean meta_page right?

no.  i meant 'new_page'.

YAMAMOTO Takashi
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