summaryrefslogtreecommitdiffstats
path: root/arch/x86/kernel/cpu/cpufreq/powernow-k7.c
diff options
context:
space:
mode:
authorRusty Russell <rusty@rustcorp.com.au>2008-12-31 18:08:47 -0800
committerIngo Molnar <mingo@elte.hu>2009-01-03 19:15:40 +0100
commit2fdf66b491ac706657946442789ec644cc317e1a (patch)
tree3442c3e1f7bceb870ab1ba2624e21767f8347508 /arch/x86/kernel/cpu/cpufreq/powernow-k7.c
parentee943a82b697456f9d2ac46f1e6d230beedb4b6c (diff)
downloadblackbird-obmc-linux-2fdf66b491ac706657946442789ec644cc317e1a.tar.gz
blackbird-obmc-linux-2fdf66b491ac706657946442789ec644cc317e1a.zip
cpumask: convert shared_cpu_map in acpi_processor* structs to cpumask_var_t
Impact: Reduce memory usage, use new API. This is part of an effort to reduce structure sizes for machines configured with large NR_CPUS. cpumask_t gets replaced by cpumask_var_t, which is either struct cpumask[1] (small NR_CPUS) or struct cpumask * (large NR_CPUS). (Changes to powernow-k* by <travis>.) Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Mike Travis <travis@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/cpu/cpufreq/powernow-k7.c')
-rw-r--r--arch/x86/kernel/cpu/cpufreq/powernow-k7.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k7.c b/arch/x86/kernel/cpu/cpufreq/powernow-k7.c
index 7c7d56b43136..1b446d79a8fd 100644
--- a/arch/x86/kernel/cpu/cpufreq/powernow-k7.c
+++ b/arch/x86/kernel/cpu/cpufreq/powernow-k7.c
@@ -310,6 +310,12 @@ static int powernow_acpi_init(void)
goto err0;
}
+ if (!alloc_cpumask_var(&acpi_processor_perf->shared_cpu_map,
+ GFP_KERNEL)) {
+ retval = -ENOMEM;
+ goto err05;
+ }
+
if (acpi_processor_register_performance(acpi_processor_perf, 0)) {
retval = -EIO;
goto err1;
@@ -412,6 +418,8 @@ static int powernow_acpi_init(void)
err2:
acpi_processor_unregister_performance(acpi_processor_perf, 0);
err1:
+ free_cpumask_var(acpi_processor_perf->shared_cpu_map);
+err05:
kfree(acpi_processor_perf);
err0:
printk(KERN_WARNING PFX "ACPI perflib can not be used in this platform\n");
@@ -652,6 +660,7 @@ static int powernow_cpu_exit (struct cpufreq_policy *policy) {
#ifdef CONFIG_X86_POWERNOW_K7_ACPI
if (acpi_processor_perf) {
acpi_processor_unregister_performance(acpi_processor_perf, 0);
+ free_cpumask_var(acpi_processor_perf->shared_cpu_map);
kfree(acpi_processor_perf);
}
#endif
OpenPOWER on IntegriCloud