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| author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2008-02-07 00:14:14 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-07 08:42:20 -0800 |
| commit | 417eead30434b4bd09a54455e839cf9a62c05460 (patch) | |
| tree | 138ed49bab9cf21579ffff98a9d428fbabe74fc8 | |
| parent | fa1de9008c9bcce8ab5122529dd19b24c273eba2 (diff) | |
| download | linux-3.10-417eead30434b4bd09a54455e839cf9a62c05460.tar.gz linux-3.10-417eead30434b4bd09a54455e839cf9a62c05460.tar.bz2 linux-3.10-417eead30434b4bd09a54455e839cf9a62c05460.zip | |
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 <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Pavel Emelianov <xemul@openvz.org>
Cc: Paul Menage <menage@google.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Kirill Korotaev <dev@sw.ru>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: David Rientjes <rientjes@google.com>
Cc: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/vmscan.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 1b85217b528..159e6c760d8 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 |