Memoryless nodes: OOM: use N_HIGH_MEMORY map instead of constructing one on the fly
constrained_alloc() builds its own memory map for nodes with memory. We have
that available in N_HIGH_MEMORY now. So simplify the code.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Acked-by: Nishanth Aravamudan <nacc@us.ibm.com>
Acked-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
Acked-by: Bob Picco <bob.picco@hp.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Mel Gorman <mel@skynet.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index f9b82ad..41b4e36 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -177,14 +177,7 @@
{
#ifdef CONFIG_NUMA
struct zone **z;
- nodemask_t nodes;
- int node;
-
- nodes_clear(nodes);
- /* node has memory ? */
- for_each_online_node(node)
- if (NODE_DATA(node)->node_present_pages)
- node_set(node, nodes);
+ nodemask_t nodes = node_states[N_HIGH_MEMORY];
for (z = zonelist->zones; *z; z++)
if (cpuset_zone_allowed_softwall(*z, gfp_mask))