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| author | Mel Gorman <mel@csn.ul.ie> | 2010-05-25 01:32:26 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-25 19:06:59 +0400 |
| commit | c175a0ce7584e5b498fff8cbdb9aa7912aa9fbba (patch) | |
| tree | dd924daef4a9e0ac9729c5b61c30b8e3cc96f971 /include/linux | |
| parent | f1a5ab1210579e2d3ac8c0c227645823af5aafb0 (diff) | |
| download | linux-c175a0ce7584e5b498fff8cbdb9aa7912aa9fbba.tar.xz | |
mm: move definition for LRU isolation modes to a header
Currently, vmscan.c defines the isolation modes for __isolate_lru_page().
Memory compaction needs access to these modes for isolating pages for
migration. This patch exports them.
Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Acked-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/swap.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h index 600b03b7732e..1e8ce148d058 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -229,6 +229,11 @@ static inline void lru_cache_add_file(struct page *page) __lru_cache_add(page, LRU_INACTIVE_FILE); } +/* LRU Isolation modes. */ +#define ISOLATE_INACTIVE 0 /* Isolate inactive pages. */ +#define ISOLATE_ACTIVE 1 /* Isolate active pages. */ +#define ISOLATE_BOTH 2 /* Isolate both active and inactive pages. */ + /* linux/mm/vmscan.c */ extern unsigned long try_to_free_pages(struct zonelist *zonelist, int order, gfp_t gfp_mask, nodemask_t *mask); |