From 417eead30434b4bd09a54455e839cf9a62c05460 Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Thu, 7 Feb 2008 00:14:14 -0800 Subject: memory cgroup enhancements: fix zone handling in try_to_free_mem_cgroup_page Because NODE_DATA(node)->node_zonelists[] is guaranteed to contain all necessary zones, it is not necessary to use for_each_online_node. And this for_each_online_node() makes reclaim routine start always from node 0. This is not good. This patch makes reclaim start from caller's node and just use usual (default) zonelist order. [akpm@linux-foundation.org: fix warning] Signed-off-by: KAMEZAWA Hiroyuki Cc: Balbir Singh Cc: Pavel Emelianov Cc: Paul Menage Cc: Peter Zijlstra Cc: "Eric W. Biederman" Cc: Nick Piggin Cc: Kirill Korotaev Cc: Herbert Poetzl Cc: David Rientjes Cc: Vaidyanathan Srinivasan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/vmscan.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) (limited to 'mm/vmscan.c') diff --git a/mm/vmscan.c b/mm/vmscan.c index 1b85217b528c..159e6c760d83 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1365,15 +1365,12 @@ unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem_cont, .mem_cgroup = mem_cont, .isolate_pages = mem_cgroup_isolate_pages, }; - int node; struct zone **zones; int target_zone = gfp_zone(GFP_HIGHUSER_MOVABLE); - for_each_online_node(node) { - zones = NODE_DATA(node)->node_zonelists[target_zone].zones; - if (do_try_to_free_pages(zones, sc.gfp_mask, &sc)) - return 1; - } + zones = NODE_DATA(numa_node_id())->node_zonelists[target_zone].zones; + if (do_try_to_free_pages(zones, sc.gfp_mask, &sc)) + return 1; return 0; } #endif -- cgit v1.2.3-59-g8ed1b