From: Lee Schermerhorn <lee.schermerhorn@xxxxxx>
In kernel profiling requires that we be able to allocate "local" memory
for each cpu. Use "cpu_to_mem()" instead of "cpu_to_node()" to support
memoryless nodes.
Depends on the "numa_mem_id()" patch.
Signed-off-by: Lee Schermerhorn <lee.schermerhorn@xxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Mel Gorman <mel@xxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxxxxxxxxxxxxx>
Cc: Nick Piggin <npiggin@xxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Eric Whitney <eric.whitney@xxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: "Luck, Tony" <tony.luck@xxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxxxxxx>
Cc: <linux-arch@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/profile.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN kernel/profile.c~numa-in-kernel-profiling-use-cpu_to_mem-for-per-cpu-allocations kernel/profile.c
--- a/kernel/profile.c~numa-in-kernel-profiling-use-cpu_to_mem-for-per-cpu-allocations
+++ a/kernel/profile.c
@@ -365,7 +365,7 @@ static int __cpuinit profile_cpu_callbac
switch (action) {
case CPU_UP_PREPARE:
case CPU_UP_PREPARE_FROZEN:
- node = cpu_to_node(cpu);
+ node = cpu_to_mem(cpu);
per_cpu(cpu_profile_flip, cpu) = 0;
if (!per_cpu(cpu_profile_hits, cpu)[1]) {
page = alloc_pages_exact_node(node,
@@ -567,7 +567,7 @@ static int create_hash_tables(void)
int cpu;
for_each_online_cpu(cpu) {
- int node = cpu_to_node(cpu);
+ int node = cpu_to_mem(cpu);
struct page *page;
page = alloc_pages_exact_node(node,
_
--
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