The patch titled
OOM: use the N_MEMORY map instead of constructing one on the fly
has been added to the -mm tree. Its filename is
oom-use-the-n_memory-map-instead-of-constructing-one-on-the-fly.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: OOM: use the N_MEMORY map instead of constructing one on the fly
From: Lee Schermerhorn <lee.schermerhorn@xxxxxx>
constrained_alloc() builds its own memory map for nodes with memory. We have
that available in node_memory_map now. So simplify the code.
Signed-off-by: Christoph Lameter <clameter@xxxxxxx>
Acked-by: Nishanth Aravamudan <nacc@xxxxxxxxxx>
Acked-by: Lee Schermerhorn <lee.schermerhorn@xxxxxx>
Acked-by: Bob Picco <bob.picco@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/oom_kill.c | 9 +--------
1 file changed, 1 insertion(+), 8 deletions(-)
diff -puN mm/oom_kill.c~oom-use-the-n_memory-map-instead-of-constructing-one-on-the-fly mm/oom_kill.c
--- a/mm/oom_kill.c~oom-use-the-n_memory-map-instead-of-constructing-one-on-the-fly
+++ a/mm/oom_kill.c
@@ -176,14 +176,7 @@ static inline int constrained_alloc(stru
{
#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_MEMORY];
for (z = zonelist->zones; *z; z++)
if (cpuset_zone_allowed_softwall(*z, gfp_mask))
_
Patches currently in -mm which might be from lee.schermerhorn@xxxxxx are
numa-generic-management-of-nodemasks-for-various-purposes.patch
memoryless-nodes-introduce-mask-of-nodes-with-memory.patch
memoryless-nodes-fix-interleave-behavior.patch
oom-use-the-n_memory-map-instead-of-constructing-one-on-the-fly.patch
memoryless-nodes-no-need-for-kswapd.patch
memoryless-node-slab-support.patch
memoryless-nodes-slub-support.patch
uncached-allocator-handle-memoryless-nodes.patch
memoryless-node-allow-profiling-data-to-fall-back-to-other-nodes.patch
memoryless-nodes-update-memory-policy-and-page-migration.patch
add-n_cpu-node-state.patch
memoryless-nodes-fix-gfp_thisnode-behavior.patch
memoryless-nodes-use-node_memory_map-for-cpusets.patch
memoryless-nodes-drop-one-memoryless-node-boot-warning.patch
-
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