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| author | Rusty Russell <rusty@rustcorp.com.au> | 2008-12-31 18:08:47 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-03 19:15:40 +0100 |
| commit | 2fdf66b491ac706657946442789ec644cc317e1a (patch) | |
| tree | 3442c3e1f7bceb870ab1ba2624e21767f8347508 /arch/x86/kernel/cpu/cpufreq/powernow-k7.c | |
| parent | ee943a82b697456f9d2ac46f1e6d230beedb4b6c (diff) | |
| download | op-kernel-dev-2fdf66b491ac706657946442789ec644cc317e1a.zip op-kernel-dev-2fdf66b491ac706657946442789ec644cc317e1a.tar.gz | |
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.c | 9 |
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 7c7d56b..1b446d7 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 |
