From: Mel Gorman Date: Mon, 24 May 2010 21:32:26 +0000 (-0700) Subject: mm: move definition for LRU isolation modes to a header X-Git-Tag: v2.6.35-rc1~376 X-Git-Url: http://ftp.safe.ca/?p=safe%2Fjmp%2Flinux-2.6;a=commitdiff_plain;h=c175a0ce7584e5b498fff8cbdb9aa7912aa9fbba 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 Acked-by: Christoph Lameter Cc: Rik van Riel Cc: Minchan Kim Cc: KOSAKI Motohiro Cc: KAMEZAWA Hiroyuki Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/include/linux/swap.h b/include/linux/swap.h index 600b03b..1e8ce14 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); diff --git a/mm/vmscan.c b/mm/vmscan.c index f2c367c..25b0202 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -839,11 +839,6 @@ keep: return nr_reclaimed; } -/* 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. */ - /* * Attempt to remove the specified page from its LRU. Only take this page * if it is of the appropriate PageActive status. Pages which are being