perf, trace: Optimize tracepoints by using per-tracepoint-per-cpu hlist to track...

[net-next-2.6.git] / include / linux / ftrace_event.h

diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index c0f4b364c711d172c23919b010963620222a2344..7024b7d1126f1369d72453eab91fddb3b50c7a4e 100644 (file)
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -58,6 +58,7 @@ struct trace_iterator {
        /* The below is zeroed out in pipe_read */
        struct trace_seq        seq;
        struct trace_entry      *ent;
+       unsigned long           lost_events;
        int                     leftover;
        int                     cpu;
        u64                     ts;
@@ -132,6 +133,7 @@ struct ftrace_event_call {
        void                    *data;
 
        int                     perf_refcount;
+       struct hlist_head       *perf_events;
        int                     (*perf_event_enable)(struct ftrace_event_call *);
        void                    (*perf_event_disable)(struct ftrace_event_call *);
 };
@@ -190,24 +192,22 @@ struct perf_event;
 
 DECLARE_PER_CPU(struct pt_regs, perf_trace_regs);
 
-extern int perf_trace_enable(int event_id);
-extern void perf_trace_disable(int event_id);
-extern int ftrace_profile_set_filter(struct perf_event *event, int event_id,
+extern int  perf_trace_init(struct perf_event *event);
+extern void perf_trace_destroy(struct perf_event *event);
+extern int  perf_trace_enable(struct perf_event *event);
+extern void perf_trace_disable(struct perf_event *event);
+extern int  ftrace_profile_set_filter(struct perf_event *event, int event_id,
                                     char *filter_str);
 extern void ftrace_profile_free_filter(struct perf_event *event);
-extern void *
-perf_trace_buf_prepare(int size, unsigned short type, int *rctxp,
-                        unsigned long *irq_flags);
+extern void *perf_trace_buf_prepare(int size, unsigned short type,
+                                   struct pt_regs *regs, int *rctxp);
 
 static inline void
 perf_trace_buf_submit(void *raw_data, int size, int rctx, u64 addr,
-                      u64 count, unsigned long irq_flags, struct pt_regs *regs)
+                      u64 count, struct pt_regs *regs, void *head)
 {
-       struct trace_entry *entry = raw_data;
-
-       perf_tp_event(entry->type, addr, count, raw_data, size, regs);
+       perf_tp_event(addr, count, raw_data, size, regs, head);
        perf_swevent_put_recursion_context(rctx);
-       local_irq_restore(irq_flags);
 }
 #endif