perf: Remove the nmi parameter from the swevent and overflow interface
[linux-2.6.git] / kernel / events / core.c
index 270e32f..dbd1ca7 100644 (file)
@@ -3972,7 +3972,7 @@ void perf_prepare_sample(struct perf_event_header *header,
        }
 }
 
-static void perf_event_output(struct perf_event *event, int nmi,
+static void perf_event_output(struct perf_event *event,
                                struct perf_sample_data *data,
                                struct pt_regs *regs)
 {
@@ -3984,7 +3984,7 @@ static void perf_event_output(struct perf_event *event, int nmi,
 
        perf_prepare_sample(&header, data, event, regs);
 
-       if (perf_output_begin(&handle, event, header.size, nmi, 1))
+       if (perf_output_begin(&handle, event, header.size, 1))
                goto exit;
 
        perf_output_sample(&handle, &header, data, event);
@@ -4024,7 +4024,7 @@ perf_event_read_event(struct perf_event *event,
        int ret;
 
        perf_event_header__init_id(&read_event.header, &sample, event);
-       ret = perf_output_begin(&handle, event, read_event.header.size, 0, 0);
+       ret = perf_output_begin(&handle, event, read_event.header.size, 0);
        if (ret)
                return;
 
@@ -4067,7 +4067,7 @@ static void perf_event_task_output(struct perf_event *event,
        perf_event_header__init_id(&task_event->event_id.header, &sample, event);
 
        ret = perf_output_begin(&handle, event,
-                               task_event->event_id.header.size, 0, 0);
+                               task_event->event_id.header.size, 0);
        if (ret)
                goto out;
 
@@ -4204,7 +4204,7 @@ static void perf_event_comm_output(struct perf_event *event,
 
        perf_event_header__init_id(&comm_event->event_id.header, &sample, event);
        ret = perf_output_begin(&handle, event,
-                               comm_event->event_id.header.size, 0, 0);
+                               comm_event->event_id.header.size, 0);
 
        if (ret)
                goto out;
@@ -4351,7 +4351,7 @@ static void perf_event_mmap_output(struct perf_event *event,
 
        perf_event_header__init_id(&mmap_event->event_id.header, &sample, event);
        ret = perf_output_begin(&handle, event,
-                               mmap_event->event_id.header.size, 0, 0);
+                               mmap_event->event_id.header.size, 0);
        if (ret)
                goto out;
 
@@ -4546,7 +4546,7 @@ static void perf_log_throttle(struct perf_event *event, int enable)
        perf_event_header__init_id(&throttle_event.header, &sample, event);
 
        ret = perf_output_begin(&handle, event,
-                               throttle_event.header.size, 1, 0);
+                               throttle_event.header.size, 0);
        if (ret)
                return;
 
@@ -4559,7 +4559,7 @@ static void perf_log_throttle(struct perf_event *event, int enable)
  * Generic event overflow handling, sampling.
  */
 
-static int __perf_event_overflow(struct perf_event *event, int nmi,
+static int __perf_event_overflow(struct perf_event *event,
                                   int throttle, struct perf_sample_data *data,
                                   struct pt_regs *regs)
 {
@@ -4602,34 +4602,28 @@ static int __perf_event_overflow(struct perf_event *event, int nmi,
        if (events && atomic_dec_and_test(&event->event_limit)) {
                ret = 1;
                event->pending_kill = POLL_HUP;
-               if (nmi) {
-                       event->pending_disable = 1;
-                       irq_work_queue(&event->pending);
-               } else
-                       perf_event_disable(event);
+               event->pending_disable = 1;
+               irq_work_queue(&event->pending);
        }
 
        if (event->overflow_handler)
-               event->overflow_handler(event, nmi, data, regs);
+               event->overflow_handler(event, data, regs);
        else
-               perf_event_output(event, nmi, data, regs);
+               perf_event_output(event, data, regs);
 
        if (event->fasync && event->pending_kill) {
-               if (nmi) {
-                       event->pending_wakeup = 1;
-                       irq_work_queue(&event->pending);
-               } else
-                       perf_event_wakeup(event);
+               event->pending_wakeup = 1;
+               irq_work_queue(&event->pending);
        }
 
        return ret;
 }
 
-int perf_event_overflow(struct perf_event *event, int nmi,
+int perf_event_overflow(struct perf_event *event,
                          struct perf_sample_data *data,
                          struct pt_regs *regs)
 {
-       return __perf_event_overflow(event, nmi, 1, data, regs);
+       return __perf_event_overflow(event, 1, data, regs);
 }
 
 /*
@@ -4678,7 +4672,7 @@ again:
 }
 
 static void perf_swevent_overflow(struct perf_event *event, u64 overflow,
-                                   int nmi, struct perf_sample_data *data,
+                                   struct perf_sample_data *data,
                                    struct pt_regs *regs)
 {
        struct hw_perf_event *hwc = &event->hw;
@@ -4692,7 +4686,7 @@ static void perf_swevent_overflow(struct perf_event *event, u64 overflow,
                return;
 
        for (; overflow; overflow--) {
-               if (__perf_event_overflow(event, nmi, throttle,
+               if (__perf_event_overflow(event, throttle,
                                            data, regs)) {
                        /*
                         * We inhibit the overflow from happening when
@@ -4705,7 +4699,7 @@ static void perf_swevent_overflow(struct perf_event *event, u64 overflow,
 }
 
 static void perf_swevent_event(struct perf_event *event, u64 nr,
-                              int nmi, struct perf_sample_data *data,
+                              struct perf_sample_data *data,
                               struct pt_regs *regs)
 {
        struct hw_perf_event *hwc = &event->hw;
@@ -4719,12 +4713,12 @@ static void perf_swevent_event(struct perf_event *event, u64 nr,
                return;
 
        if (nr == 1 && hwc->sample_period == 1 && !event->attr.freq)
-               return perf_swevent_overflow(event, 1, nmi, data, regs);
+               return perf_swevent_overflow(event, 1, data, regs);
 
        if (local64_add_negative(nr, &hwc->period_left))
                return;
 
-       perf_swevent_overflow(event, 0, nmi, data, regs);
+       perf_swevent_overflow(event, 0, data, regs);
 }
 
 static int perf_exclude_event(struct perf_event *event,
@@ -4812,7 +4806,7 @@ find_swevent_head(struct swevent_htable *swhash, struct perf_event *event)
 }
 
 static void do_perf_sw_event(enum perf_type_id type, u32 event_id,
-                                   u64 nr, int nmi,
+                                   u64 nr,
                                    struct perf_sample_data *data,
                                    struct pt_regs *regs)
 {
@@ -4828,7 +4822,7 @@ static void do_perf_sw_event(enum perf_type_id type, u32 event_id,
 
        hlist_for_each_entry_rcu(event, node, head, hlist_entry) {
                if (perf_swevent_match(event, type, event_id, data, regs))
-                       perf_swevent_event(event, nr, nmi, data, regs);
+                       perf_swevent_event(event, nr, data, regs);
        }
 end:
        rcu_read_unlock();
@@ -4849,8 +4843,7 @@ inline void perf_swevent_put_recursion_context(int rctx)
        put_recursion_context(swhash->recursion, rctx);
 }
 
-void __perf_sw_event(u32 event_id, u64 nr, int nmi,
-                           struct pt_regs *regs, u64 addr)
+void __perf_sw_event(u32 event_id, u64 nr, struct pt_regs *regs, u64 addr)
 {
        struct perf_sample_data data;
        int rctx;
@@ -4862,7 +4855,7 @@ void __perf_sw_event(u32 event_id, u64 nr, int nmi,
 
        perf_sample_data_init(&data, addr);
 
-       do_perf_sw_event(PERF_TYPE_SOFTWARE, event_id, nr, nmi, &data, regs);
+       do_perf_sw_event(PERF_TYPE_SOFTWARE, event_id, nr, &data, regs);
 
        perf_swevent_put_recursion_context(rctx);
        preempt_enable_notrace();
@@ -5110,7 +5103,7 @@ void perf_tp_event(u64 addr, u64 count, void *record, int entry_size,
 
        hlist_for_each_entry_rcu(event, node, head, hlist_entry) {
                if (perf_tp_event_match(event, &data, regs))
-                       perf_swevent_event(event, count, 1, &data, regs);
+                       perf_swevent_event(event, count, &data, regs);
        }
 
        perf_swevent_put_recursion_context(rctx);
@@ -5203,7 +5196,7 @@ void perf_bp_event(struct perf_event *bp, void *data)
        perf_sample_data_init(&sample, bp->attr.bp_addr);
 
        if (!bp->hw.state && !perf_exclude_event(bp, regs))
-               perf_swevent_event(bp, 1, 1, &sample, regs);
+               perf_swevent_event(bp, 1, &sample, regs);
 }
 #endif
 
@@ -5232,7 +5225,7 @@ static enum hrtimer_restart perf_swevent_hrtimer(struct hrtimer *hrtimer)
 
        if (regs && !perf_exclude_event(event, regs)) {
                if (!(event->attr.exclude_idle && current->pid == 0))
-                       if (perf_event_overflow(event, 0, &data, regs))
+                       if (perf_event_overflow(event, &data, regs))
                                ret = HRTIMER_NORESTART;
        }