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SubjectRe: {2.6.22.y} quicklists must keep even off node pages on the quicklists until the TLB flush has been completed.
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@linux.kernel.org Sat Dec 22 14:04:08 2007
> From: Christoph Lameter <clameter@sgi.com>
> Date: Sat, 22 Dec 2007 14:03:23 -0800
> Subject: quicklists: do not release off node pages early
> To: torvalds@linux-foundation.org
> Cc: stable@kernel.org, akpm@linux-foundation.org,
> dhaval@linux.vnet.ibm.com, clameter@sgi.com
> Message-ID: <200712222203.lBMM3Nsk021922@imap1.linux-foundation.org>
>
>
> From: Christoph Lameter <clameter@sgi.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@sgi.com>
> Cc: Dhaval Giani <dhaval@linux.vnet.ibm.com>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.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@gmail.com> (on i386)
>

Christoph,

Is this one also supposed to be backported?

--
regards,
Dhaval


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