diff options
| author | Mel Gorman <mgorman@suse.de> | 2012-11-12 09:06:20 +0000 |
|---|---|---|
| committer | Mel Gorman <mgorman@suse.de> | 2012-12-11 14:42:52 +0000 |
| commit | 57e0a0309160b1b4ebde9f3c6a867cd96ac368bf (patch) | |
| tree | 085278ae65303221b638bf4d5063be0d41d35098 /include/linux/mm_types.h | |
| parent | fb003b80daa0dead5b87f4e2e4fb8da68b110ff2 (diff) | |
mm: numa: Introduce last_nid to the page frame
This patch introduces a last_nid field to the page struct. This is used
to build a two-stage filter in the next patch that is aimed at
mitigating a problem whereby pages migrate to the wrong node when
referenced by a process that was running off its home node.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Diffstat (limited to 'include/linux/mm_types.h')
| -rw-r--r-- | include/linux/mm_types.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index d1e246c5e50c..c5fffa239861 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -175,6 +175,10 @@ struct page { */ void *shadow; #endif + +#ifdef CONFIG_NUMA_BALANCING + int _last_nid; +#endif } /* * The struct page can be forced to be double word aligned so that atomic ops |