static atomic_t *prof_buffer;
static unsigned long prof_len, prof_shift;
+
int prof_on __read_mostly;
+EXPORT_SYMBOL_GPL(prof_on);
+
static cpumask_t prof_cpu_mask = CPU_MASK_ALL;
#ifdef CONFIG_SMP
static DEFINE_PER_CPU(struct profile_hit *[2], cpu_profile_hits);
{
static char __initdata schedstr[] = "schedule";
static char __initdata sleepstr[] = "sleep";
+ static char __initdata kvmstr[] = "kvm";
int par;
if (!strncmp(str, sleepstr, strlen(sleepstr))) {
printk(KERN_INFO
"kernel sleep profiling enabled (shift: %ld)\n",
prof_shift);
- } else if (!strncmp(str, sleepstr, strlen(sleepstr))) {
+ } else if (!strncmp(str, schedstr, strlen(schedstr))) {
prof_on = SCHED_PROFILING;
if (str[strlen(schedstr)] == ',')
str += strlen(schedstr) + 1;
printk(KERN_INFO
"kernel schedule profiling enabled (shift: %ld)\n",
prof_shift);
+ } else if (!strncmp(str, kvmstr, strlen(kvmstr))) {
+ prof_on = KVM_PROFILING;
+ if (str[strlen(kvmstr)] == ',')
+ str += strlen(kvmstr) + 1;
+ if (get_option(&str, &par))
+ prof_shift = par;
+ printk(KERN_INFO
+ "kernel KVM profiling enabled (shift: %ld)\n",
+ prof_shift);
} else if (get_option(&str, &par)) {
prof_shift = par;
prof_on = CPU_PROFILING;
put_cpu();
}
-#ifdef CONFIG_HOTPLUG_CPU
static int __devinit profile_cpu_callback(struct notifier_block *info,
unsigned long action, void *__cpu)
{
}
return NOTIFY_OK;
}
-#endif /* CONFIG_HOTPLUG_CPU */
#else /* !CONFIG_SMP */
#define profile_flip_buffers() do { } while (0)
#define profile_discard_flip_buffers() do { } while (0)
+#define profile_cpu_callback NULL
void profile_hits(int type, void *__pc, unsigned int nr_hits)
{
}
#endif /* !CONFIG_SMP */
+EXPORT_SYMBOL_GPL(profile_hits);
+
void profile_tick(int type)
{
struct pt_regs *regs = get_irq_regs();
/* create /proc/irq/prof_cpu_mask */
if (!(entry = create_proc_entry("prof_cpu_mask", 0600, root_irq_dir)))
return;
- entry->nlink = 1;
entry->data = (void *)&prof_cpu_mask;
entry->read_proc = prof_cpu_mask_read_proc;
entry->write_proc = prof_cpu_mask_write_proc;
return count;
}
-static struct file_operations proc_profile_operations = {
+static const struct file_operations proc_profile_operations = {
.read = read_profile,
.write = write_profile,
};