linux-kernel - [tip:perf/urgent] perf auxtrace: Make auxtrace_queues__add

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Date:   Mon, 9 Apr 2018 22:28:13 -0700
From:   tip-bot for Adrian Hunter <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     hpa@...or.com, mingo@...nel.org, jolsa@...hat.com,
        linux-kernel@...r.kernel.org, adrian.hunter@...el.com,
        acme@...hat.com, tglx@...utronix.de
Subject: [tip:perf/urgent] perf auxtrace: Make auxtrace_queues__add_buffer()
 do CPU filtering

Commit-ID:  b238db655796e74b59d9ece58b645ad0b494d615
Gitweb:     https://git.kernel.org/tip/b238db655796e74b59d9ece58b645ad0b494d615
Author:     Adrian Hunter <adrian.hunter@...el.com>
AuthorDate: Tue, 6 Mar 2018 11:13:18 +0200
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Fri, 6 Apr 2018 09:40:41 -0300

perf auxtrace: Make auxtrace_queues__add_buffer() do CPU filtering

In preparation for supporting AUX area sampling buffers,
auxtrace_queues__add_buffer() needs to be more generic. To that end, move
CPU filtering into it.

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Link: http://lkml.kernel.org/r/1520327598-1317-8-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/auxtrace.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index e1aff91c54a8..857de69a5361 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -302,6 +302,13 @@ static int auxtrace_queues__split_buffer(struct auxtrace_queues *queues,
 	return 0;
 }
 
+static bool filter_cpu(struct perf_session *session, int cpu)
+{
+	unsigned long *cpu_bitmap = session->itrace_synth_opts->cpu_bitmap;
+
+	return cpu_bitmap && cpu != -1 && !test_bit(cpu, cpu_bitmap);
+}
+
 static int auxtrace_queues__add_buffer(struct auxtrace_queues *queues,
 				       struct perf_session *session,
 				       unsigned int idx,
@@ -310,6 +317,9 @@ static int auxtrace_queues__add_buffer(struct auxtrace_queues *queues,
 {
 	int err = -ENOMEM;
 
+	if (filter_cpu(session, buffer->cpu))
+		return 0;
+
 	buffer = memdup(buffer, sizeof(*buffer));
 	if (!buffer)
 		return -ENOMEM;
@@ -344,13 +354,6 @@ out_free:
 	return err;
 }
 
-static bool filter_cpu(struct perf_session *session, int cpu)
-{
-	unsigned long *cpu_bitmap = session->itrace_synth_opts->cpu_bitmap;
-
-	return cpu_bitmap && cpu != -1 && !test_bit(cpu, cpu_bitmap);
-}
-
 int auxtrace_queues__add_event(struct auxtrace_queues *queues,
 			       struct perf_session *session,
 			       union perf_event *event, off_t data_offset,
@@ -367,9 +370,6 @@ int auxtrace_queues__add_event(struct auxtrace_queues *queues,
 	};
 	unsigned int idx = event->auxtrace.idx;
 
-	if (filter_cpu(session, event->auxtrace.cpu))
-		return 0;
-
 	return auxtrace_queues__add_buffer(queues, session, idx, &buffer,
 					   buffer_ptr);
 }