From 385e33063fb963f5cccb0a37fe539319b6481fa5 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Fri, 25 Sep 2015 16:15:44 +0300 Subject: [PATCH] perf intel-pt: Move branch filter logic intel_pt_synth_branch_sample() skips synthesizing if the branch does not match the branch filter. That logic was sitting in the middle of the function but is more efficiently placed at the start of the function, so move it. Signed-off-by: Adrian Hunter Cc: Jiri Olsa Link: http://lkml.kernel.org/r/1443186956-18718-14-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/intel-pt.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c index c8bb5ca6a157..2c01e723826a 100644 --- a/tools/perf/util/intel-pt.c +++ b/tools/perf/util/intel-pt.c @@ -891,6 +891,9 @@ static int intel_pt_synth_branch_sample(struct intel_pt_queue *ptq) union perf_event *event = ptq->event_buf; struct perf_sample sample = { .ip = 0, }; + if (pt->branches_filter && !(pt->branches_filter & ptq->flags)) + return 0; + event->sample.header.type = PERF_RECORD_SAMPLE; event->sample.header.misc = PERF_RECORD_MISC_USER; event->sample.header.size = sizeof(struct perf_event_header); @@ -909,9 +912,6 @@ static int intel_pt_synth_branch_sample(struct intel_pt_queue *ptq) sample.flags = ptq->flags; sample.insn_len = ptq->insn_len; - if (pt->branches_filter && !(pt->branches_filter & ptq->flags)) - return 0; - if (pt->synth_opts.inject) { ret = intel_pt_inject_event(event, &sample, pt->branches_sample_type, -- GitLab