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yaml
---
r: 147426
b: refs/heads/master
c: 0d905bc
h: refs/heads/master
v: v3
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Ingo Molnar committed May 4, 2009
1 parent e27bb4d commit 4c4bcc5
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Showing 4 changed files with 10 additions and 7 deletions.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: ba77813a2a22d631fe5bc0bf1ec0d11350544b70
refs/heads/master: 0d905bca23aca5c86a10ee101bcd3b1abbd40b25
5 changes: 4 additions & 1 deletion trunk/include/linux/perf_counter.h
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Expand Up @@ -573,6 +573,8 @@ extern struct perf_callchain_entry *perf_callchain(struct pt_regs *regs);

extern int sysctl_perf_counter_priv;

extern void perf_counter_init(void);

#else
static inline void
perf_counter_task_sched_in(struct task_struct *task, int cpu) { }
Expand Down Expand Up @@ -600,9 +602,10 @@ perf_counter_mmap(unsigned long addr, unsigned long len,

static inline void
perf_counter_munmap(unsigned long addr, unsigned long len,
unsigned long pgoff, struct file *file) { }
unsigned long pgoff, struct file *file) { }

static inline void perf_counter_comm(struct task_struct *tsk) { }
static inline void perf_counter_init(void) { }
#endif

#endif /* __KERNEL__ */
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5 changes: 1 addition & 4 deletions trunk/kernel/perf_counter.c
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Expand Up @@ -3265,15 +3265,12 @@ static struct notifier_block __cpuinitdata perf_cpu_nb = {
.notifier_call = perf_cpu_notify,
};

static int __init perf_counter_init(void)
void __init perf_counter_init(void)
{
perf_cpu_notify(&perf_cpu_nb, (unsigned long)CPU_UP_PREPARE,
(void *)(long)smp_processor_id());
register_cpu_notifier(&perf_cpu_nb);

return 0;
}
early_initcall(perf_counter_init);

static ssize_t perf_show_reserve_percpu(struct sysdev_class *class, char *buf)
{
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5 changes: 4 additions & 1 deletion trunk/kernel/sched.c
Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,7 @@
#include <linux/completion.h>
#include <linux/kernel_stat.h>
#include <linux/debug_locks.h>
#include <linux/perf_counter.h>
#include <linux/security.h>
#include <linux/notifier.h>
#include <linux/profile.h>
Expand Down Expand Up @@ -8996,7 +8997,7 @@ void __init sched_init(void)
* 1024) and two child groups A0 and A1 (of weight 1024 each),
* then A0's share of the cpu resource is:
*
* A0's bandwidth = 1024 / (10*1024 + 1024 + 1024) = 8.33%
* A0's bandwidth = 1024 / (10*1024 + 1024 + 1024) = 8.33%
*
* We achieve this by letting init_task_group's tasks sit
* directly in rq->cfs (i.e init_task_group->se[] = NULL).
Expand Down Expand Up @@ -9097,6 +9098,8 @@ void __init sched_init(void)
alloc_bootmem_cpumask_var(&cpu_isolated_map);
#endif /* SMP */

perf_counter_init();

scheduler_running = 1;
}

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