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authorKOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>2009-01-07 21:08:25 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-08 11:31:09 -0500
commitc772be939e078afd2505ede7d596a30f8f61de95 (patch)
tree2cf3157fdd2b3570e105f2d91576585750526fb3 /mm/vmscan.c
parenta7885eb8ad465ec9db99ac5b5e6680f0ca8e11c8 (diff)
memcg: fix calculation of active_ratio
Currently, inactive_ratio of memcg is calculated at setting limit. because page_alloc.c does so and current implementation is straightforward porting. However, memcg introduced hierarchy feature recently. In hierarchy restriction, memory limit is not only decided memory.limit_in_bytes of current cgroup, but also parent limit and sibling memory usage. Then, The optimal inactive_ratio is changed frequently. So, everytime calculation is better. Tested-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Balbir Singh <balbir@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmscan.c')
-rw-r--r--mm/vmscan.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index ece2f405187f..9a27c44aa327 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1340,7 +1340,7 @@ static int inactive_anon_is_low(struct zone *zone, struct scan_control *sc)
1340 if (scanning_global_lru(sc)) 1340 if (scanning_global_lru(sc))
1341 low = inactive_anon_is_low_global(zone); 1341 low = inactive_anon_is_low_global(zone);
1342 else 1342 else
1343 low = mem_cgroup_inactive_anon_is_low(sc->mem_cgroup, zone); 1343 low = mem_cgroup_inactive_anon_is_low(sc->mem_cgroup);
1344 return low; 1344 return low;
1345} 1345}
1346 1346