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| author | Rusty Russell <rusty@rustcorp.com.au> | 2009-12-17 11:43:24 -0600 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2009-12-17 11:43:25 +1030 |
| commit | cc216b86e51e9ab22265ea9591769c9ee235e1e4 (patch) | |
| tree | 797a38135c7f4cd95f09f10e9fcc6fa3ce7053c9 /drivers/idle | |
| parent | 6957177f5c3c0e51b9e90a1d7fadb3177a333949 (diff) | |
| download | lwn-cc216b86e51e9ab22265ea9591769c9ee235e1e4.tar.gz lwn-cc216b86e51e9ab22265ea9591769c9ee235e1e4.zip | |
cpumask: convert drivers/idle/i7300_idle.c to cpumask_var_t
Fairly simple transformation:
1) cpumask_t -> cpumask_var_t and alloc_cpumask_var/free_cpumask_var
(which are a NOOP unless CONFIG_CPUMASK_OFFSTACK=y).
2) cpu_set -> cpumask_set_cpu
3) cpus_weight -> cpumask_weight
4) cpu_clear -> cpumask_clear_cpu
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
To: Andy Henroid <andrew.d.henroid@intel.com>
Diffstat (limited to 'drivers/idle')
| -rw-r--r-- | drivers/idle/i7300_idle.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/idle/i7300_idle.c b/drivers/idle/i7300_idle.c index 1f20a042a4f5..dd253002cd50 100644 --- a/drivers/idle/i7300_idle.c +++ b/drivers/idle/i7300_idle.c @@ -81,7 +81,7 @@ static u8 i7300_idle_thrtctl_saved; static u8 i7300_idle_thrtlow_saved; static u32 i7300_idle_mc_saved; -static cpumask_t idle_cpumask; +static cpumask_var_t idle_cpumask; static ktime_t start_ktime; static unsigned long avg_idle_us; @@ -459,9 +459,9 @@ static int i7300_idle_notifier(struct notifier_block *nb, unsigned long val, spin_lock_irqsave(&i7300_idle_lock, flags); if (val == IDLE_START) { - cpu_set(smp_processor_id(), idle_cpumask); + cpumask_set_cpu(smp_processor_id(), idle_cpumask); - if (cpus_weight(idle_cpumask) != num_online_cpus()) + if (cpumask_weight(idle_cpumask) != num_online_cpus()) goto end; now_ktime = ktime_get(); @@ -478,8 +478,8 @@ static int i7300_idle_notifier(struct notifier_block *nb, unsigned long val, i7300_idle_ioat_start(); } else if (val == IDLE_END) { - cpu_clear(smp_processor_id(), idle_cpumask); - if (cpus_weight(idle_cpumask) == (num_online_cpus() - 1)) { + cpumask_clear_cpu(smp_processor_id(), idle_cpumask); + if (cpumask_weight(idle_cpumask) == (num_online_cpus() - 1)) { /* First CPU coming out of idle */ u64 idle_duration_us; @@ -553,7 +553,6 @@ struct debugfs_file_info { static int __init i7300_idle_init(void) { spin_lock_init(&i7300_idle_lock); - cpus_clear(idle_cpumask); total_us = 0; if (i7300_idle_platform_probe(&fbd_dev, &ioat_dev, forceload)) @@ -565,6 +564,9 @@ static int __init i7300_idle_init(void) if (i7300_idle_ioat_init()) return -ENODEV; + if (!zalloc_cpumask_var(&idle_cpumask, GFP_KERNEL)) + return -ENOMEM; + debugfs_dir = debugfs_create_dir("i7300_idle", NULL); if (debugfs_dir) { int i = 0; @@ -589,6 +591,7 @@ static int __init i7300_idle_init(void) static void __exit i7300_idle_exit(void) { idle_notifier_unregister(&i7300_idle_nb); + free_cpumask_var(idle_cpumask); if (debugfs_dir) { int i = 0; |