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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2010-05-18 18:08:32 +0200
committerIngo Molnar <mingo@elte.hu>2010-05-18 18:35:46 +0200
commit4f41c013f553957765902fb01475972f0af3e8e7 (patch)
treeddaa54947cc990094a4b270f2f8b3d6da195044f /kernel/trace/trace_kprobe.c
parentef4f30f54e265c2f6f9ac9eda4db158a4e16050b (diff)
downloadblackbird-op-linux-4f41c013f553957765902fb01475972f0af3e8e7.tar.gz
blackbird-op-linux-4f41c013f553957765902fb01475972f0af3e8e7.zip
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 <a.p.zijlstra@chello.nl> Tested-by: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace/trace_kprobe.c')
-rw-r--r--kernel/trace/trace_kprobe.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index a7514326052b..2d7bf4146be8 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -1362,7 +1362,7 @@ static __kprobes void kprobe_perf_func(struct kprobe *kp,
for (i = 0; i < tp->nr_args; i++)
call_fetch(&tp->args[i].fetch, regs, data + tp->args[i].offset);
- perf_trace_buf_submit(entry, size, rctx, entry->ip, 1, irq_flags, regs);
+ perf_trace_buf_submit(entry, size, rctx, entry->ip, 1, irq_flags, regs, call->perf_data);
}
/* Kretprobe profile handler */
@@ -1395,7 +1395,7 @@ static __kprobes void kretprobe_perf_func(struct kretprobe_instance *ri,
call_fetch(&tp->args[i].fetch, regs, data + tp->args[i].offset);
perf_trace_buf_submit(entry, size, rctx, entry->ret_ip, 1,
- irq_flags, regs);
+ irq_flags, regs, call->perf_data);
}
static int probe_perf_enable(struct ftrace_event_call *call)
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