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[tip:perf/core] perf cpu_map: Add cpu_map__empty_new function

From tip-bot for Jiri Olsa <tipbot@zytor.com>
Newsgroups linux.kernel
Subject [tip:perf/core] perf cpu_map: Add cpu_map__empty_new function
Date 2015-10-29 10:50 +0100
Message-ID <qoS0j-6Ul-43@gated-at.bofh.it> (permalink)
References <qnvfs-4Bx-17@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Commit-ID:  2322f573f8131da9c6d1fab01fe0a0c2c23aa549
Gitweb:     http://git.kernel.org/tip/2322f573f8131da9c6d1fab01fe0a0c2c23aa549
Author:     Jiri Olsa <jolsa@kernel.org>
AuthorDate: Sun, 25 Oct 2015 15:51:17 +0100
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 27 Oct 2015 15:05:36 -0300

perf cpu_map: Add cpu_map__empty_new function

Adding cpu_map__empty_new interface to create empty cpumap with given
size. The cpumap entries are initialized with -1.

It'll be used for caching cpu_map in following patches.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Kan Liang <kan.liang@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1445784728-21732-2-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/cpumap.c | 17 +++++++++++++++++
 tools/perf/util/cpumap.h |  1 +
 2 files changed, 18 insertions(+)

diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
index aa6b490..10af1e7 100644
--- a/tools/perf/util/cpumap.c
+++ b/tools/perf/util/cpumap.c
@@ -203,6 +203,23 @@ struct cpu_map *cpu_map__dummy_new(void)
 	return cpus;
 }
 
+struct cpu_map *cpu_map__empty_new(int nr)
+{
+	struct cpu_map *cpus = malloc(sizeof(*cpus) + sizeof(int) * nr);
+
+	if (cpus != NULL) {
+		int i;
+
+		cpus->nr = nr;
+		for (i = 0; i < nr; i++)
+			cpus->map[i] = -1;
+
+		atomic_set(&cpus->refcnt, 1);
+	}
+
+	return cpus;
+}
+
 static void cpu_map__delete(struct cpu_map *map)
 {
 	if (map) {
diff --git a/tools/perf/util/cpumap.h b/tools/perf/util/cpumap.h
index f1bcd2c..85f7772 100644
--- a/tools/perf/util/cpumap.h
+++ b/tools/perf/util/cpumap.h
@@ -15,6 +15,7 @@ struct cpu_map {
 };
 
 struct cpu_map *cpu_map__new(const char *cpu_list);
+struct cpu_map *cpu_map__empty_new(int nr);
 struct cpu_map *cpu_map__dummy_new(void);
 struct cpu_map *cpu_map__read(FILE *file);
 size_t cpu_map__fprintf(struct cpu_map *map, FILE *fp);
--
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[PATCHv5 00/52] perf stat: Add scripting support Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
  [PATCH 22/52] perf tools: Add event_update event scale type Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
  [PATCH 04/52] perf tools: Add thread_map event sythesize function Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
  [PATCH 43/52] perf stat report: Process event update events Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
  [PATCH 12/52] perf tools: Add stat config event synthesize function Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
  [PATCH 52/52] perf script: Add stat-cpi.py script Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
  [PATCH 45/52] perf stat report: Allow to override aggr_mode Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
  [PATCH 49/52] perf script: Add stat default handlers Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
  [PATCH 39/52] perf stat report: Process cpu/threads maps Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
  [PATCH 26/52] perf report: Display newly added events in raw dump Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
  [PATCH 18/52] perf tools: Add stat round event synthesize function Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
  [PATCH 06/52] perf tools: Add perf_event__fprintf_thread_map function Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
  [PATCH 47/52] perf script: Process stat config event Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
  [PATCH 02/52] perf stat: Cache aggregated map entries in extra cpumap Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
    [tip:perf/core] perf stat:   Cache aggregated map entries in extra cpumap tip-bot for Jiri Olsa <tipbot@zytor.com> - 2015-10-29 10:50 +0100
  [PATCH 16/52] perf tools: Add stat event read function Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
  [PATCH 38/52] perf stat report: Add report command Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
  [PATCH 34/52] perf stat record: Write stat events on record Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
  [PATCH 44/52] perf stat report: Move csv_sep initialization before report command Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
  [PATCH 05/52] perf tools: Add thread_map__new_event function Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
  [PATCH 08/52] perf tools: Add cpu_map event synthesize function Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
  [PATCH 14/52] perf tools: Add stat event Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:00 +0100
  [PATCH 27/52] perf tools: Introduce stat feature Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:10 +0100
  [PATCH 17/52] perf tools: Add stat round event Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:10 +0100
  [PATCH 25/52] perf tools: Add perf_event__fprintf_event_update function Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:10 +0100
  [PATCH 11/52] perf tools: Add stat config event Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:10 +0100
    Re: [PATCH 11/52] perf tools: Add stat config event Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-27 14:20 +0100
      Re: [PATCH 11/52] perf tools: Add stat config event Jiri Olsa <jolsa@redhat.com> - 2015-10-27 14:40 +0100
        Re: [PATCH 11/52] perf tools: Add stat config event Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-27 14:50 +0100
          Re: [PATCH 11/52] perf tools: Add stat config event Jiri Olsa <jolsa@redhat.com> - 2015-10-27 15:00 +0100
            Re: [PATCH 11/52] perf tools: Add stat config event Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-27 15:20 +0100
  [PATCH 13/52] perf tools: Add stat config event read function Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:10 +0100
  [PATCH 28/52] perf tools: Move id_offset out of struct perf_evsel union Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:10 +0100
    [tip:perf/core] perf evsel:   Move id_offset out of struct perf_evsel union member tip-bot for Jiri Olsa <tipbot@zytor.com> - 2015-10-29 10:50 +0100
  [PATCH 15/52] perf tools: Add stat event synthesize function Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:10 +0100
  [PATCH 35/52] perf stat record: Write stat round events on record Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:10 +0100
  [PATCH 24/52] perf tools: Add event_update event cpus type Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:10 +0100
  [PATCH 21/52] perf tools: Add event_update event unit type Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:10 +0100
  [PATCH 31/52] perf stat record: Synthesize stat record data Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:10 +0100
    Re: [PATCH 31/52] perf stat record: Synthesize stat record data Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-27 15:50 +0100
      Re: [PATCH 31/52] perf stat record: Synthesize stat record data Jiri Olsa <jolsa@redhat.com> - 2015-10-28 13:20 +0100
      Re: [PATCH 31/52] perf stat record: Synthesize stat record data Jiri Olsa <jolsa@redhat.com> - 2015-10-28 14:10 +0100
      Re: [PATCH 31/52] perf stat record: Synthesize stat record data Jiri Olsa <jolsa@redhat.com> - 2015-10-28 14:10 +0100
  [PATCH 36/52] perf stat record: Do not allow record with multiple runs mode Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:10 +0100
  [PATCH 19/52] perf tools: Add stat events fprintf functions Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:10 +0100
  [PATCH 40/52] perf stat report: Process stat config event Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:10 +0100
  [PATCH 41/52] perf stat report: Add support to initialize aggr_map from file Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:10 +0100
  [PATCH 33/52] perf stat record: Add pipe support for record command Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:10 +0100
  [PATCH 30/52] perf stat record: Initialize record features Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:10 +0100
  [PATCH 23/52] perf tools: Add event_update event name type Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:10 +0100
  [PATCH 37/52] perf stat record: Synthesize event update events Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:10 +0100
  [PATCH 09/52] perf tools: Add cpu_map__new_event function Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:20 +0100
  [PATCH 03/52] perf tools: Add thread_map event Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:20 +0100
    Re: [PATCH 03/52] perf tools: Add thread_map event Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-26 18:50 +0100
      Re: [PATCH 03/52] perf tools: Add thread_map event Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-26 18:50 +0100
        Re: [PATCH 03/52] perf tools: Add thread_map event Jiri Olsa <jolsa@redhat.com> - 2015-10-26 19:00 +0100
          Re: [PATCH 03/52] perf tools: Add thread_map event Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-26 19:00 +0100
      Re: [PATCH 03/52] perf tools: Add thread_map event Jiri Olsa <jolsa@redhat.com> - 2015-10-26 18:50 +0100
  [PATCH 07/52] perf tools: Add cpu_map event Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:20 +0100
  [PATCH 01/52] perf cpu_map: Add cpu_map__empty_new function Jiri Olsa <jolsa@kernel.org> - 2015-10-25 16:20 +0100
    [tip:perf/core] perf cpu_map: Add cpu_map__empty_new function tip-bot for Jiri Olsa <tipbot@zytor.com> - 2015-10-29 10:50 +0100
  Re: [PATCHv5 00/52] perf stat: Add scripting support Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-26 18:40 +0100
    RE: [PATCHv5 00/52] perf stat: Add scripting support "Liang, Kan" <kan.liang@intel.com> - 2015-10-27 15:30 +0100
      Re: [PATCHv5 00/52] perf stat: Add scripting support Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-10-27 15:50 +0100

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