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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2010-05-19 10:52:27 +0200
committerIngo Molnar <mingo@elte.hu>2010-05-21 11:37:56 +0200
commitb7e2ecef92d2e7785e6d76b41e5ba8bcbc45259d (patch)
tree341c3a03743108bbdf82ee0eed9f4c4085f1b694 /include/linux/ftrace_event.h
parent1c34bde13a3cdcd4c7c6322f8052e67c2c91caf1 (diff)
downloadop-kernel-dev-b7e2ecef92d2e7785e6d76b41e5ba8bcbc45259d.zip
op-kernel-dev-b7e2ecef92d2e7785e6d76b41e5ba8bcbc45259d.tar.gz
perf, trace: Optimize tracepoints by removing IRQ-disable from perf/tracepoint interaction
Improves performance. Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <1274259525.5605.10352.camel@twins> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/linux/ftrace_event.h')
-rw-r--r--include/linux/ftrace_event.h9
1 files changed, 3 insertions, 6 deletions
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index a9775dd..126071b 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -197,20 +197,17 @@ extern void perf_trace_disable(int event_id);
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,
- void *event)
+ u64 count, struct pt_regs *regs, void *event)
{
struct trace_entry *entry = raw_data;
perf_tp_event(entry->type, addr, count, raw_data, size, regs, event);
perf_swevent_put_recursion_context(rctx);
- local_irq_restore(irq_flags);
}
#endif
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