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authorChristoph Lameter <clameter@sgi.com>2007-10-16 04:25:36 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 12:42:58 -0400
commit37c0708dbee5825df3bd9ce6ef2199c6c1713970 (patch)
tree747551aa58484e7f872da118b864c8f3ca6e892d /mm/page_alloc.c
parent56bbd65df0e92a4a8eb70c5f2b416ae2b6c5fb31 (diff)
Memoryless nodes: Add N_CPU node state
We need the check for a node with cpu in zone reclaim. Zone reclaim will not allow remote zone reclaim if a node has a cpu. [Lee.Schermerhorn@hp.com: Move setup of N_CPU node state mask] Signed-off-by: Christoph Lameter <clameter@sgi.com> Tested-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Acked-by: Bob Picco <bob.picco@hp.com> Cc: Nishanth Aravamudan <nacc@us.ibm.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Mel Gorman <mel@skynet.ie> Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/page_alloc.c')
-rw-r--r--mm/page_alloc.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 07dfd89992fa..161bcb711b30 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2353,6 +2353,9 @@ static struct per_cpu_pageset boot_pageset[NR_CPUS];
2353static int __cpuinit process_zones(int cpu) 2353static int __cpuinit process_zones(int cpu)
2354{ 2354{
2355 struct zone *zone, *dzone; 2355 struct zone *zone, *dzone;
2356 int node = cpu_to_node(cpu);
2357
2358 node_set_state(node, N_CPU); /* this node has a cpu */
2356 2359
2357 for_each_zone(zone) { 2360 for_each_zone(zone) {
2358 2361
@@ -2360,7 +2363,7 @@ static int __cpuinit process_zones(int cpu)
2360 continue; 2363 continue;
2361 2364
2362 zone_pcp(zone, cpu) = kmalloc_node(sizeof(struct per_cpu_pageset), 2365 zone_pcp(zone, cpu) = kmalloc_node(sizeof(struct per_cpu_pageset),
2363 GFP_KERNEL, cpu_to_node(cpu)); 2366 GFP_KERNEL, node);
2364 if (!zone_pcp(zone, cpu)) 2367 if (!zone_pcp(zone, cpu))
2365 goto bad; 2368 goto bad;
2366 2369