From 4f41c013f553957765902fb01475972f0af3e8e7 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Tue, 18 May 2010 18:08:32 +0200 Subject: perf/ftrace: Optimize perf/tracepoint interaction for single events When we've got but a single event per tracepoint there is no reason to try and multiplex it so don't. Signed-off-by: Peter Zijlstra Tested-by: Ingo Molnar Cc: Steven Rostedt Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo LKML-Reference: Signed-off-by: Ingo Molnar --- include/linux/ftrace_event.h | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'include/linux/ftrace_event.h') diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h index c0f4b364c711..c8091001b943 100644 --- a/include/linux/ftrace_event.h +++ b/include/linux/ftrace_event.h @@ -132,6 +132,7 @@ struct ftrace_event_call { void *data; int perf_refcount; + void *perf_data; int (*perf_event_enable)(struct ftrace_event_call *); void (*perf_event_disable)(struct ftrace_event_call *); }; @@ -190,7 +191,7 @@ struct perf_event; DECLARE_PER_CPU(struct pt_regs, perf_trace_regs); -extern int perf_trace_enable(int event_id); +extern int perf_trace_enable(int event_id, void *data); extern void perf_trace_disable(int event_id); extern int ftrace_profile_set_filter(struct perf_event *event, int event_id, char *filter_str); @@ -201,11 +202,12 @@ perf_trace_buf_prepare(int size, unsigned short type, 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, unsigned long irq_flags, struct pt_regs *regs, + void *event) { struct trace_entry *entry = raw_data; - perf_tp_event(entry->type, addr, count, raw_data, size, regs); + perf_tp_event(entry->type, addr, count, raw_data, size, regs, event); perf_swevent_put_recursion_context(rctx); local_irq_restore(irq_flags); } -- cgit v1.2.3