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libperf: Add perf_cpu_map__get()/perf_cpu_map__put()

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Moving the following functions:

  cpu_map__get()
  cpu_map__put()

to libperf with following names:

  perf_cpu_map__get()
  perf_cpu_map__put()

Committer notes:

Added fixes for arm/arm64

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20190721112506.12306-31-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa
2019-07-21 13:24:17 +02:00
committed by Arnaldo Carvalho de Melo
parent 397721e06e
commit 38f01d8da1
33 changed files with 78 additions and 75 deletions
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22
tools/perf/util/cpumap.c
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@@ -273,28 +273,6 @@ struct perf_cpu_map *cpu_map__empty_new(int nr)
return cpus;
}
static void cpu_map__delete(struct perf_cpu_map *map)
{
if (map) {
WARN_ONCE(refcount_read(&map->refcnt) != 0,
"cpu_map refcnt unbalanced\n");
free(map);
}
}
struct perf_cpu_map *cpu_map__get(struct perf_cpu_map *map)
{
if (map)
refcount_inc(&map->refcnt);
return map;
}
void cpu_map__put(struct perf_cpu_map *map)
{
if (map && refcount_dec_and_test(&map->refcnt))
cpu_map__delete(map);
}
static int cpu__get_topology_int(int cpu, const char *name, int *value)
{
char path[PATH_MAX];