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SubjectRe: [PATCH v4 07/12] sched/numa: fix set cpupid on page migration twice against normal page
On Tue, Dec 10, 2013 at 05:19:30PM +0800, Wanpeng Li wrote:
> commit 7851a45cd3 (mm: numa: Copy cpupid on page migration) copy over
> the cpupid at page migration time, there is unnecessary to set it again
> in function alloc_misplaced_dst_page, this patch fix it.
>
> Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>

Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>

> ---
> mm/migrate.c | 2 --
> 1 files changed, 0 insertions(+), 2 deletions(-)
>
> diff --git a/mm/migrate.c b/mm/migrate.c
> index b1b6663..508cde4 100644
> --- a/mm/migrate.c
> +++ b/mm/migrate.c
> @@ -1557,8 +1557,6 @@ static struct page *alloc_misplaced_dst_page(struct page *page,
> __GFP_NOMEMALLOC | __GFP_NORETRY |
> __GFP_NOWARN) &
> ~GFP_IOFS, 0);
> - if (newpage)
> - page_cpupid_xchg_last(newpage, page_cpupid_last(page));
>
> return newpage;
> }
> --
> 1.7.7.6
>
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