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authorIngo Molnar <mingo@elte.hu>2010-03-12 10:20:57 +0100
committerIngo Molnar <mingo@elte.hu>2010-03-12 10:20:59 +0100
commit937779db13fb6cb621e28d9ae0a6cf1d05b57d05 (patch)
tree6c27402677c347c4dc01980de78c270630588847 /kernel/perf_event.c
parent6230f2c7ef01a69e2ba9370326572c287209d32a (diff)
parent9f591fd76afdc0e5192e9ed00a36f8efc0b4dfe6 (diff)
downloadlinux-937779db13fb6cb621e28d9ae0a6cf1d05b57d05.tar.bz2
Merge branch 'perf/urgent' into perf/core
Merge reason: We want to queue up a dependent patch. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/perf_event.c')
-rw-r--r--kernel/perf_event.c30
1 files changed, 21 insertions, 9 deletions
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 3853d49c7d56..8bf61273c58b 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -2790,6 +2790,11 @@ __weak struct perf_callchain_entry *perf_callchain(struct pt_regs *regs)
return NULL;
}
+__weak
+void perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip, int skip)
+{
+}
+
/*
* Output
*/
@@ -4317,9 +4322,8 @@ static const struct pmu perf_ops_task_clock = {
#ifdef CONFIG_EVENT_TRACING
void perf_tp_event(int event_id, u64 addr, u64 count, void *record,
- int entry_size)
+ int entry_size, struct pt_regs *regs)
{
- struct pt_regs *regs = get_irq_regs();
struct perf_sample_data data;
struct perf_raw_record raw = {
.size = entry_size,
@@ -4329,12 +4333,9 @@ void perf_tp_event(int event_id, u64 addr, u64 count, void *record,
perf_sample_data_init(&data, addr);
data.raw = &raw;
- if (!regs)
- regs = task_pt_regs(current);
-
/* Trace events already protected against recursion */
do_perf_sw_event(PERF_TYPE_TRACEPOINT, event_id, count, 1,
- &data, regs);
+ &data, regs);
}
EXPORT_SYMBOL_GPL(perf_tp_event);
@@ -4350,7 +4351,7 @@ static int perf_tp_event_match(struct perf_event *event,
static void tp_perf_event_destroy(struct perf_event *event)
{
- ftrace_profile_disable(event->attr.config);
+ perf_trace_disable(event->attr.config);
}
static const struct pmu *tp_perf_event_init(struct perf_event *event)
@@ -4364,7 +4365,7 @@ static const struct pmu *tp_perf_event_init(struct perf_event *event)
!capable(CAP_SYS_ADMIN))
return ERR_PTR(-EPERM);
- if (ftrace_profile_enable(event->attr.config))
+ if (perf_trace_enable(event->attr.config))
return NULL;
event->destroy = tp_perf_event_destroy;
@@ -5371,12 +5372,22 @@ int perf_event_init_task(struct task_struct *child)
return ret;
}
+static void __init perf_event_init_all_cpus(void)
+{
+ int cpu;
+ struct perf_cpu_context *cpuctx;
+
+ for_each_possible_cpu(cpu) {
+ cpuctx = &per_cpu(perf_cpu_context, cpu);
+ __perf_event_init_context(&cpuctx->ctx, NULL);
+ }
+}
+
static void __cpuinit perf_event_init_cpu(int cpu)
{
struct perf_cpu_context *cpuctx;
cpuctx = &per_cpu(perf_cpu_context, cpu);
- __perf_event_init_context(&cpuctx->ctx, NULL);
spin_lock(&perf_resource_lock);
cpuctx->max_pertask = perf_max_events - perf_reserved_percpu;
@@ -5442,6 +5453,7 @@ static struct notifier_block __cpuinitdata perf_cpu_nb = {
void __init perf_event_init(void)
{
+ perf_event_init_all_cpus();
perf_cpu_notify(&perf_cpu_nb, (unsigned long)CPU_UP_PREPARE,
(void *)(long)smp_processor_id());
perf_cpu_notify(&perf_cpu_nb, (unsigned long)CPU_ONLINE,