From 563b2aa62c8fa84a2df1a2f4b2d8dbf94f78491b Mon Sep 17 00:00:00 2001 From: Konstantin Khlebnikov Date: Wed, 4 Apr 2012 10:08:22 +1000 Subject: [PATCH] mm/memcg: use vm_swappiness from target memory cgroup Use vm_swappiness from memory cgroup which is triggered this memory reclaim. This is more reasonable and allows to kill one argument. Signed-off-by: Konstantin Khlebnikov Acked-by: KAMEZAWA Hiroyuki Cc: Hugh Dickins Cc: Glauber Costa Cc: Michal Hocko Cc: Johannes Weiner Cc: Minchan Kim Signed-off-by: Andrew Morton --- mm/vmscan.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index ec38e5692f34..479bd7a7f6ab 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1840,12 +1840,11 @@ static unsigned long shrink_list(enum lru_list lru, unsigned long nr_to_scan, return shrink_inactive_list(nr_to_scan, mz, sc, priority, lru); } -static int vmscan_swappiness(struct mem_cgroup_zone *mz, - struct scan_control *sc) +static int vmscan_swappiness(struct scan_control *sc) { if (global_reclaim(sc)) return vm_swappiness; - return mem_cgroup_swappiness(mz->mem_cgroup); + return mem_cgroup_swappiness(sc->target_mem_cgroup); } /* @@ -1913,8 +1912,8 @@ static void get_scan_count(struct mem_cgroup_zone *mz, struct scan_control *sc, * With swappiness at 100, anonymous and file have the same priority. * This scanning priority is essentially the inverse of IO cost. */ - anon_prio = vmscan_swappiness(mz, sc); - file_prio = 200 - vmscan_swappiness(mz, sc); + anon_prio = vmscan_swappiness(sc); + file_prio = 200 - vmscan_swappiness(sc); /* * OK, so we have swap space and a fair amount of page cache -- 2.39.5