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Merge commit 'v2.6.27-rc5' into tip/oprofile

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Conflicts:
	arch/x86/oprofile/nmi_int.c
This commit is contained in:
Robert Richter
2008-09-24 11:25:31 +02:00
parent 4c168eaf7e 24342c34a0
commit f78e80209c
944 changed files with 31970 additions and 9959 deletions
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39
arch/x86/oprofile/nmi_int.c
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@@ -16,6 +16,7 @@
#include <linux/slab.h>
#include <linux/moduleparam.h>
#include <linux/kdebug.h>
#include <linux/cpu.h>
#include <asm/nmi.h>
#include <asm/msr.h>
#include <asm/apic.h>
@@ -29,23 +30,48 @@ static DEFINE_PER_CPU(unsigned long, saved_lvtpc);
static int nmi_start(void);
static void nmi_stop(void);
static void nmi_cpu_start(void *dummy);
static void nmi_cpu_stop(void *dummy);
/* 0 == registered but off, 1 == registered and on */
static int nmi_enabled = 0;
#ifdef CONFIG_SMP
static int oprofile_cpu_notifier(struct notifier_block *b, unsigned long action,
void *data)
{
int cpu = (unsigned long)data;
switch (action) {
case CPU_DOWN_FAILED:
case CPU_ONLINE:
smp_call_function_single(cpu, nmi_cpu_start, NULL, 0);
break;
case CPU_DOWN_PREPARE:
smp_call_function_single(cpu, nmi_cpu_stop, NULL, 1);
break;
}
return NOTIFY_DONE;
}
static struct notifier_block oprofile_cpu_nb = {
.notifier_call = oprofile_cpu_notifier
};
#endif
#ifdef CONFIG_PM
static int nmi_suspend(struct sys_device *dev, pm_message_t state)
{
/* Only one CPU left, just stop that one */
if (nmi_enabled == 1)
nmi_stop();
nmi_cpu_stop(NULL);
return 0;
}
static int nmi_resume(struct sys_device *dev)
{
if (nmi_enabled == 1)
nmi_start();
nmi_cpu_start(NULL);
return 0;
}
@@ -468,6 +494,9 @@ int __init op_nmi_init(struct oprofile_operations *ops)
return -ENODEV;
}
#ifdef CONFIG_SMP
register_cpu_notifier(&oprofile_cpu_nb);
#endif
/* default values, can be overwritten by model */
ops->create_files = nmi_create_files;
ops->setup = nmi_setup;
@@ -489,8 +518,12 @@ int __init op_nmi_init(struct oprofile_operations *ops)
void op_nmi_exit(void)
{
if (using_nmi)
if (using_nmi) {
exit_sysfs();
#ifdef CONFIG_SMP
unregister_cpu_notifier(&oprofile_cpu_nb);
#endif
}
if (model->exit)
model->exit();
}