diff options
| author | Mike Travis <travis@sgi.com> | 2009-01-01 02:08:47 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-03 18:15:40 (GMT) |
| commit | 80855f7361eb68205e6bc1981928629d9b02d5c9 (patch) | |
| tree | 029e78df08989c8d335b67a8031c784136a57539 /arch/x86/kernel/cpu | |
| parent | 2fdf66b491ac706657946442789ec644cc317e1a (diff) | |
| download | linux-80855f7361eb68205e6bc1981928629d9b02d5c9.tar.xz | |
cpumask: use alloc_cpumask_var_node where appropriate
Impact: Reduce inter-node memory traffic.
Reduces inter-node memory traffic (offloading the global system bus)
by allocating referenced struct cpumasks on the same node as the
referring struct.
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/cpu')
| -rw-r--r-- | arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c index d0a0010..28102ad 100644 --- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c +++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c @@ -547,8 +547,9 @@ static int __init acpi_cpufreq_early_init(void) return -ENOMEM; } for_each_possible_cpu(i) { - if (!alloc_cpumask_var(&per_cpu_ptr(acpi_perf_data, i) - ->shared_cpu_map, GFP_KERNEL)) { + if (!alloc_cpumask_var_node( + &per_cpu_ptr(acpi_perf_data, i)->shared_cpu_map, + GFP_KERNEL, cpu_to_node(i))) { /* Freeing a NULL pointer is OK: alloc_percpu zeroes. */ free_acpi_perf_data(); |