[PATCH] Do not allocate pagesets for unpopulated zones.

We do not need to allocate pagesets for unpopulated zones. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
git-mirror · Sep 27, 2006 · 66a5503 · 66a5503
1 parent d5f541e
commit 66a5503
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
@@ -1829,6 +1829,9 @@ static int __cpuinit process_zones(int cpu)
 
 	for_each_zone(zone) {
 
+		if (!populated_zone(zone))
+			continue;
+
 		zone_pcp(zone, cpu) = kmalloc_node(sizeof(struct per_cpu_pageset),
 					 GFP_KERNEL, cpu_to_node(cpu));
 		if (!zone_pcp(zone, cpu))