From e3790144c9091631a18564aa64db8a971da02c41 Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Fri, 22 Feb 2013 16:35:19 -0800 Subject: mm: refactor inactive_file_is_low() to use get_lru_size() An inactive file list is considered low when its active counterpart is bigger, regardless of whether it is a global zone LRU list or a memcg zone LRU list. The only difference is in how the LRU size is assessed. get_lru_size() does the right thing for both global and memcg reclaim situations. Get rid of inactive_file_is_low_global() and mem_cgroup_inactive_file_is_low() by using get_lru_size() and compare the numbers in common code. Signed-off-by: Johannes Weiner Acked-by: Michal Hocko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/vmscan.c | 19 ++++++------------- 1 file changed, 6 insertions(+), 13 deletions(-) (limited to 'mm/vmscan.c') diff --git a/mm/vmscan.c b/mm/vmscan.c index b7d8015a6d54..396ecee281d0 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1579,16 +1579,6 @@ static inline int inactive_anon_is_low(struct lruvec *lruvec) } #endif -static int inactive_file_is_low_global(struct zone *zone) -{ - unsigned long active, inactive; - - active = zone_page_state(zone, NR_ACTIVE_FILE); - inactive = zone_page_state(zone, NR_INACTIVE_FILE); - - return (active > inactive); -} - /** * inactive_file_is_low - check if file pages need to be deactivated * @lruvec: LRU vector to check @@ -1605,10 +1595,13 @@ static int inactive_file_is_low_global(struct zone *zone) */ static int inactive_file_is_low(struct lruvec *lruvec) { - if (!mem_cgroup_disabled()) - return mem_cgroup_inactive_file_is_low(lruvec); + unsigned long inactive; + unsigned long active; + + inactive = get_lru_size(lruvec, LRU_INACTIVE_FILE); + active = get_lru_size(lruvec, LRU_ACTIVE_FILE); - return inactive_file_is_low_global(lruvec_zone(lruvec)); + return active > inactive; } static int inactive_list_is_low(struct lruvec *lruvec, enum lru_list lru) -- cgit v1.2.3-59-g8ed1b