From c9f299d9862deadf9fbee3ca28d915fdb006975a Mon Sep 17 00:00:00 2001 From: KOSAKI Motohiro Date: Wed, 7 Jan 2009 18:08:16 -0800 Subject: mm: add zone nr_pages helper function Add zone_nr_pages() helper function. It is used by a later patch. This patch doesn't have any functional change. Reviewed-by: KAMEZAWA Hiroyuki Signed-off-by: KOSAKI Motohiro Acked-by: Rik van Riel Cc: Balbir Singh Cc: Daisuke Nishimura Cc: Hugh Dickins Cc: KOSAKI Motohiro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/vmscan.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) (limited to 'mm') diff --git a/mm/vmscan.c b/mm/vmscan.c index 03ca923c6656..6827d35954fb 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -136,6 +136,13 @@ static struct zone_reclaim_stat *get_reclaim_stat(struct zone *zone, return &zone->reclaim_stat; } +static unsigned long zone_nr_pages(struct zone *zone, struct scan_control *sc, + enum lru_list lru) +{ + return zone_page_state(zone, NR_LRU_BASE + lru); +} + + /* * Add a shrinker callback to be called from the vm */ @@ -1365,10 +1372,10 @@ static void get_scan_ratio(struct zone *zone, struct scan_control *sc, return; } - anon = zone_page_state(zone, NR_ACTIVE_ANON) + - zone_page_state(zone, NR_INACTIVE_ANON); - file = zone_page_state(zone, NR_ACTIVE_FILE) + - zone_page_state(zone, NR_INACTIVE_FILE); + anon = zone_nr_pages(zone, sc, LRU_ACTIVE_ANON) + + zone_nr_pages(zone, sc, LRU_INACTIVE_ANON); + file = zone_nr_pages(zone, sc, LRU_ACTIVE_FILE) + + zone_nr_pages(zone, sc, LRU_INACTIVE_FILE); free = zone_page_state(zone, NR_FREE_PAGES); /* If we have very few page cache pages, force-scan anon pages. */ -- cgit v1.2.3-58-ga151