The patch titled
Subject: kernel/profile.c: replace cpu_to_mem() with cpu_to_node()
has been added to the -mm tree. Its filename is
kernel-profilec-replace-cpu_to_mem-with-cpu_to_node.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/kernel-profilec-replace-cpu_to_mem-with-cpu_to_node.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/kernel-profilec-replace-cpu_to_mem-with-cpu_to_node.patch
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------------------------------------------------------
From: Jiang Liu <jiang.liu@xxxxxxxxxxxxxxx>
Subject: kernel/profile.c: replace cpu_to_mem() with cpu_to_node()
Function profile_cpu_callback() allocates memory without specifying
__GFP_THISNODE flag, so replace cpu_to_mem() with cpu_to_node() because
cpu_to_mem() may cause suboptimal memory allocation if there's no free
memory on the node returned by cpu_to_mem().
It's safe to use cpu_to_mem() because build_all_zonelists() also builds
suitable fallback zonelist for memoryless node.
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>
---
kernel/profile.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN kernel/profile.c~kernel-profilec-replace-cpu_to_mem-with-cpu_to_node kernel/profile.c
--- a/kernel/profile.c~kernel-profilec-replace-cpu_to_mem-with-cpu_to_node
+++ a/kernel/profile.c
@@ -336,7 +336,7 @@ static int profile_cpu_callback(struct n
switch (action) {
case CPU_UP_PREPARE:
case CPU_UP_PREPARE_FROZEN:
- node = cpu_to_mem(cpu);
+ node = cpu_to_node(cpu);
per_cpu(cpu_profile_flip, cpu) = 0;
if (!per_cpu(cpu_profile_hits, cpu)[1]) {
page = alloc_pages_exact_node(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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