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| author |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-05-15 15:20:44 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-05-15 15:20:44 -0300 |
| commit | 848cbd2562bb85953884be72b3bdbee0b2f32474 (patch) | |
| tree | ff503a6ea6ef8028eb9c45793a63b62364e36e78 /tools/perf/util/map.c | |
| parent | Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (diff) | |
| download | linux-dev-848cbd2562bb85953884be72b3bdbee0b2f32474.tar.xz linux-dev-848cbd2562bb85953884be72b3bdbee0b2f32474.zip | |
perf tools: Use atomic.h for the map_groups refcount
Now that we have atomic.h, we should convert all of the existing
refcounts to use it.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-onm5u3pioba1hqqhjs8on03e@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/map.c')
| -rw-r--r-- | tools/perf/util/map.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index cd0e335008b4..2d20c5ff8653 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -426,7 +426,7 @@ void map_groups__init(struct map_groups *mg, struct machine *machine) INIT_LIST_HEAD(&mg->removed_maps[i]); } mg->machine = machine; - mg->refcnt = 1; + atomic_set(&mg->refcnt, 1); } static void maps__delete(struct rb_root *maps) @@ -494,7 +494,7 @@ void map_groups__delete(struct map_groups *mg) void map_groups__put(struct map_groups *mg) { - if (--mg->refcnt == 0) + if (mg && atomic_dec_and_test(&mg->refcnt)) map_groups__delete(mg); } |