linux-kernel - Re: {2.6.22.y} quicklists must keep even off node pages on the quicklists until the TLB flush has been completed.

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Date:	Wed, 6 Feb 2008 07:30:22 +0100
From:	"Oliver Pinter" <oliver.pntr@...il.com>
To:	"Dhaval Giani" <dhaval@...ux.vnet.ibm.com>
Cc:	"Linux Kernel" <linux-kernel@...r.kernel.org>, stable@...nel.org,
	stable-commits@...r.kernel.org,
	"Christoph Lameter" <clameter@....com>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	"Greg Kroah-Hartman" <gregkh@...e.de>,
	"chrisw@...s-sol.org" <chrisw@...s-sol.org>,
	"Willy Tarreau" <w@....eu>, "Adrian Bunk" <bunk@...nel.org>
Subject: Re: {2.6.22.y} quicklists must keep even off node pages on the quicklists until the TLB flush has been completed.

I use this, without errors ... but the machine is i386 desktop

On Feb 6, 2008 7:02 AM, Dhaval Giani <dhaval@...ux.vnet.ibm.com> wrote:
>
> On Tue, Feb 05, 2008 at 10:06:02PM +0100, Oliver Pinter wrote:
> > it is already im queue for 2.6.23,
> >
> > ----8<-----
> > >From stable-bounces@...ux.kernel.org Sat Dec 22 14:04:08 2007
> > From: Christoph Lameter <clameter@....com>
> > Date: Sat, 22 Dec 2007 14:03:23 -0800
> > Subject: quicklists: do not release off node pages early
> > To: torvalds@...ux-foundation.org
> > Cc: stable@...nel.org, akpm@...ux-foundation.org,
> > dhaval@...ux.vnet.ibm.com, clameter@....com
> > Message-ID: <200712222203.lBMM3Nsk021922@...p1.linux-foundation.org>
> >
> >
> > From: Christoph Lameter <clameter@....com>
> >
> > patch ed367fc3a7349b17354c7acef551533337764859 in mainline.
> >
> > quicklists must keep even off node pages on the quicklists until the TLB
> > flush has been completed.
> >
> > Signed-off-by: Christoph Lameter <clameter@....com>
> > Cc: Dhaval Giani <dhaval@...ux.vnet.ibm.com>
> > Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
> > Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
> > Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
> >
> > ---
> >  include/linux/quicklist.h |    8 --------
> >  1 file changed, 8 deletions(-)
> >
> > --- a/include/linux/quicklist.h
> > +++ b/include/linux/quicklist.h
> > @@ -56,14 +56,6 @@ static inline void __quicklist_free(int
> >       struct page *page)
> >  {
> >       struct quicklist *q;
> > -     int nid = page_to_nid(page);
> > -
> > -     if (unlikely(nid != numa_node_id())) {
> > -             if (dtor)
> > -                     dtor(p);
> > -             __free_page(page);
> > -             return;
> > -     }
> >
> >       q = &get_cpu_var(quicklist)[nr];
> >       *(void **)p = q->page;
> >
> > ---->8------
> > Tested-by: Oliver Pinter <oliver.pntr@...il.com> (on i386)
> >
>
> Christoph,
>
> Is this one also supposed to be backported?
>
> --
> regards,
> Dhaval
>



-- 
Thanks,
Oliver
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