The patch titled
Subject: openvswitch: replace cpu_to_node() with cpu_to_mem() to support memoryless node
has been added to the -mm tree. Its filename is
openvswitch-replace-cpu_to_node-with-cpu_to_mem-to-support-memoryless-node.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/openvswitch-replace-cpu_to_node-with-cpu_to_mem-to-support-memoryless-node.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/openvswitch-replace-cpu_to_node-with-cpu_to_mem-to-support-memoryless-node.patch
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------------------------------------------------------
From: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
Subject: openvswitch: replace cpu_to_node() with cpu_to_mem() to support memoryless node
ovs_flow_stats_update() allocates memory with __GFP_THISNODE flag set,
which may cause permanent memory allocation failure on memoryless node.
So replace cpu_to_node() with cpu_to_mem() to better support memoryless
node. For node with memory, cpu_to_mem() is the same as cpu_to_node().
This change only affects performance and shouldn't affect functionality.
Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Mike Galbraith <umgwanakikbuti@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: "Rafael J . Wysocki" <rafael.j.wysocki@xxxxxxxxx>
Cc: Tang Chen <tangchen@xxxxxxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
net/openvswitch/flow.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN net/openvswitch/flow.c~openvswitch-replace-cpu_to_node-with-cpu_to_mem-to-support-memoryless-node net/openvswitch/flow.c
--- a/net/openvswitch/flow.c~openvswitch-replace-cpu_to_node-with-cpu_to_mem-to-support-memoryless-node
+++ a/net/openvswitch/flow.c
@@ -69,7 +69,7 @@ void ovs_flow_stats_update(struct sw_flo
const struct sk_buff *skb)
{
struct flow_stats *stats;
- int node = numa_node_id();
+ int node = numa_mem_id();
int len = skb->len + (skb_vlan_tag_present(skb) ? VLAN_HLEN : 0);
stats = rcu_dereference(flow->stats[node]);
_
Patches currently in -mm which might be from jiang.liu@xxxxxxxxxxxxxxx are
linux-next.patch
x86-numa-acpi-online-node-earlier-when-doing-cpu-hot-addition.patch
kernel-profilec-replace-cpu_to_mem-with-cpu_to_node.patch
sgi-xp-replace-cpu_to_node-with-cpu_to_mem-to-support-memoryless-node.patch
openvswitch-replace-cpu_to_node-with-cpu_to_mem-to-support-memoryless-node.patch
i40e-use-numa_mem_id-to-better-support-memoryless-node.patch
i40evf-use-numa_mem_id-to-better-support-memoryless-node.patch
x86-numa-kill-useless-code-to-improve-code-readability.patch
mm-update-_mem_id_-for-every-possible-cpu-when-memory-configuration-changes.patch
mm-x86-enable-memoryless-node-support-to-better-support-cpu-memory-hotplug.patch
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