mm/migrate.c: fix setting of cpupid on page migration twice against normal page
authorWanpeng Li <liwanp@linux.vnet.ibm.com>
Tue, 28 Jan 2014 01:07:17 +0000 (17:07 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 28 Jan 2014 05:02:40 +0000 (21:02 -0800)
Commit 7851a45cd3f6 ("mm: numa: Copy cpupid on page migration") copies
over the cpupid at page migration time.  It is unnecessary to set it
again in alloc_misplaced_dst_page().

Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/migrate.c

index 734704f..482a33d 100644 (file)
@@ -1548,8 +1548,6 @@ 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;
 }