diff options
| author | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-06-28 14:06:39 -0400 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-06-28 14:06:39 -0400 |
| commit | f28e71617ddaf2483e3e5c5237103484a303743f (patch) | |
| tree | 67627d2d8ddbf6a4449371e9261d796c013b1fa1 /kernel/cpu.c | |
| parent | dc6a78f1af10d28fb8c395034ae1e099b85c05b0 (diff) | |
| parent | a39727f212426b9d5f9267b3318a2afaf9922d3b (diff) | |
Merge ../linux-2.6/
Conflicts:
drivers/scsi/aacraid/comminit.c
Fixed up by removing the now renamed CONFIG_IOMMU option from
aacraid
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'kernel/cpu.c')
| -rw-r--r-- | kernel/cpu.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c index fe2b8d0bfe4..70fbf2e8376 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -13,12 +13,12 @@ #include <linux/module.h> #include <linux/kthread.h> #include <linux/stop_machine.h> -#include <asm/semaphore.h> +#include <linux/mutex.h> /* This protects CPUs going up and down... */ -static DECLARE_MUTEX(cpucontrol); +static DEFINE_MUTEX(cpucontrol); -static BLOCKING_NOTIFIER_HEAD(cpu_chain); +static __cpuinitdata BLOCKING_NOTIFIER_HEAD(cpu_chain); #ifdef CONFIG_HOTPLUG_CPU static struct task_struct *lock_cpu_hotplug_owner; @@ -30,9 +30,9 @@ static int __lock_cpu_hotplug(int interruptible) if (lock_cpu_hotplug_owner != current) { if (interruptible) - ret = down_interruptible(&cpucontrol); + ret = mutex_lock_interruptible(&cpucontrol); else - down(&cpucontrol); + mutex_lock(&cpucontrol); } /* @@ -56,7 +56,7 @@ void unlock_cpu_hotplug(void) { if (--lock_cpu_hotplug_depth == 0) { lock_cpu_hotplug_owner = NULL; - up(&cpucontrol); + mutex_unlock(&cpucontrol); } } EXPORT_SYMBOL_GPL(unlock_cpu_hotplug); @@ -69,10 +69,13 @@ EXPORT_SYMBOL_GPL(lock_cpu_hotplug_interruptible); #endif /* CONFIG_HOTPLUG_CPU */ /* Need to know about CPUs going up/down? */ -int register_cpu_notifier(struct notifier_block *nb) +int __cpuinit register_cpu_notifier(struct notifier_block *nb) { return blocking_notifier_chain_register(&cpu_chain, nb); } + +#ifdef CONFIG_HOTPLUG_CPU + EXPORT_SYMBOL(register_cpu_notifier); void unregister_cpu_notifier(struct notifier_block *nb) @@ -81,7 +84,6 @@ void unregister_cpu_notifier(struct notifier_block *nb) } EXPORT_SYMBOL(unregister_cpu_notifier); -#ifdef CONFIG_HOTPLUG_CPU static inline void check_for_tasks(int cpu) { struct task_struct *p; |