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authorPeter Zijlstra <peterz@infradead.org>2013-10-07 14:29:20 +0400
committerIngo Molnar <mingo@kernel.org>2013-10-09 16:47:45 +0400
commit90572890d202527c366aa9489b32404e88a7c020 (patch)
tree0577f3b043e312f6d53e50105b236514f7df2455 /mm/migrate.c
parente1dda8a797b59d7ec4b17e393152ec3273a552d5 (diff)
downloadlinux-90572890d202527c366aa9489b32404e88a7c020.tar.xz
mm: numa: Change page last {nid,pid} into {cpu,pid}
Change the per page last fault tracking to use cpu,pid instead of nid,pid. This will allow us to try and lookup the alternate task more easily. Note that even though it is the cpu that is store in the page flags that the mpol_misplaced decision is still based on the node. Signed-off-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Link: http://lkml.kernel.org/r/1381141781-10992-43-git-send-email-mgorman@suse.de [ Fixed build failure on 32-bit systems. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/migrate.c')
-rw-r--r--mm/migrate.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/migrate.c b/mm/migrate.c
index 025d1e3d2ad2..ff537749d3b4 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1498,7 +1498,7 @@ static struct page *alloc_misplaced_dst_page(struct page *page,
__GFP_NOWARN) &
~GFP_IOFS, 0);
if (newpage)
- page_nidpid_xchg_last(newpage, page_nidpid_last(page));
+ page_cpupid_xchg_last(newpage, page_cpupid_last(page));
return newpage;
}
@@ -1675,7 +1675,7 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm,
if (!new_page)
goto out_fail;
- page_nidpid_xchg_last(new_page, page_nidpid_last(page));
+ page_cpupid_xchg_last(new_page, page_cpupid_last(page));
isolated = numamigrate_isolate_page(pgdat, page);
if (!isolated) {