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| author | KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> | 2009-01-07 18:08:21 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-08 08:31:08 -0800 |
| commit | 9439c1c95b5c25b8031b2a7eb7e1590eb84be7f5 (patch) | |
| tree | 79eaae56278407e0a223e562a2d0079834ca5529 /mm | |
| parent | 3e2f41f1f64744f7942980d93cc93dd3e5924560 (diff) | |
| download | linux-9439c1c95b5c25b8031b2a7eb7e1590eb84be7f5.tar.gz | |
memcg: remove mem_cgroup_cal_reclaim()
Now, get_scan_ratio() return correct value although memcg reclaim. Then, mem_cgroup_calc_reclaim() can be removed. So, memcg reclaim get the same capability of anon/file reclaim balancing as global reclaim now. Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@redhat.com> Acked-by: Rik van Riel <riel@redhat.com> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: Hugh Dickins <hugh@veritas.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/memcontrol.c | 21 | ||||
| -rw-r--r-- | mm/vmscan.c | 27 |
2 files changed, 10 insertions, 38 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 7b7f4dc05035..b8c1e5acc25a 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -414,27 +414,6 @@ void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem, int priority) mem->prev_priority = priority; } -/* - * Calculate # of pages to be scanned in this priority/zone. - * See also vmscan.c - * - * priority starts from "DEF_PRIORITY" and decremented in each loop. - * (see include/linux/mmzone.h) - */ - -long mem_cgroup_calc_reclaim(struct mem_cgroup *mem, struct zone *zone, - int priority, enum lru_list lru) -{ - long nr_pages; - int nid = zone->zone_pgdat->node_id; - int zid = zone_idx(zone); - struct mem_cgroup_per_zone *mz = mem_cgroup_zoneinfo(mem, nid, zid); - - nr_pages = MEM_CGROUP_ZSTAT(mz, lru); - - return (nr_pages >> priority); -} - int mem_cgroup_inactive_anon_is_low(struct mem_cgroup *memcg, struct zone *zone) { unsigned long active; diff --git a/mm/vmscan.c b/mm/vmscan.c index 56fc7abe4d23..66bb6ef44b5f 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1466,30 +1466,23 @@ static void shrink_zone(int priority, struct zone *zone, get_scan_ratio(zone, sc, percent); for_each_evictable_lru(l) { - if (scan_global_lru(sc)) { - int file = is_file_lru(l); - int scan; + int file = is_file_lru(l); + int scan; - scan = zone_page_state(zone, NR_LRU_BASE + l); - if (priority) { - scan >>= priority; - scan = (scan * percent[file]) / 100; - } + scan = zone_page_state(zone, NR_LRU_BASE + l); + if (priority) { + scan >>= priority; + scan = (scan * percent[file]) / 100; + } + if (scan_global_lru(sc)) { zone->lru[l].nr_scan += scan; nr[l] = zone->lru[l].nr_scan; if (nr[l] >= swap_cluster_max) zone->lru[l].nr_scan = 0; else nr[l] = 0; - } else { - /* - * This reclaim occurs not because zone memory shortage - * but because memory controller hits its limit. - * Don't modify zone reclaim related data. - */ - nr[l] = mem_cgroup_calc_reclaim(sc->mem_cgroup, zone, - priority, l); - } + } else + nr[l] = scan; } while (nr[LRU_INACTIVE_ANON] || nr[LRU_ACTIVE_FILE] || |