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authorChristoph Lameter <clameter@sgi.com>2007-10-16 01:25:36 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 09:42:58 -0700
commit37c0708dbee5825df3bd9ce6ef2199c6c1713970 (patch)
tree747551aa58484e7f872da118b864c8f3ca6e892d /mm/page_alloc.c
parent56bbd65df0e92a4a8eb70c5f2b416ae2b6c5fb31 (diff)
downloadop-kernel-dev-37c0708dbee5825df3bd9ce6ef2199c6c1713970.zip
op-kernel-dev-37c0708dbee5825df3bd9ce6ef2199c6c1713970.tar.gz
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 07dfd89..161bcb7 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2353,6 +2353,9 @@ static struct per_cpu_pageset boot_pageset[NR_CPUS];
static int __cpuinit process_zones(int cpu)
{
struct zone *zone, *dzone;
+ int node = cpu_to_node(cpu);
+
+ node_set_state(node, N_CPU); /* this node has a cpu */
for_each_zone(zone) {
@@ -2360,7 +2363,7 @@ static int __cpuinit process_zones(int cpu)
continue;
zone_pcp(zone, cpu) = kmalloc_node(sizeof(struct per_cpu_pageset),
- GFP_KERNEL, cpu_to_node(cpu));
+ GFP_KERNEL, node);
if (!zone_pcp(zone, cpu))
goto bad;
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