diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-03-25 15:26:44 -0300 |
|---|---|---|
| committer | Jiri Olsa <jolsa@kernel.org> | 2014-04-28 13:43:26 +0200 |
| commit | a26ca6716a6c683f40bd676cea7e89704653b98d (patch) | |
| tree | aa5fdacbf7eecbd959686d2ab3d28ed1cfebba83 /tools/perf/util/map.h | |
| parent | 93d5731dcb5b8cb7fa56ee11a5891f10c96c2a45 (diff) | |
perf tools: Reference count map_groups objects
We will share it among threads in the same process.
Adding map_groups__get/map_groups__put interface for that.
Signed-off-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1397490723-1992-4-git-send-email-jolsa@redhat.com
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Diffstat (limited to 'tools/perf/util/map.h')
| -rw-r--r-- | tools/perf/util/map.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h index 1073e2d8b797..d6445b27d672 100644 --- a/tools/perf/util/map.h +++ b/tools/perf/util/map.h @@ -59,11 +59,20 @@ struct map_groups { struct rb_root maps[MAP__NR_TYPES]; struct list_head removed_maps[MAP__NR_TYPES]; struct machine *machine; + int refcnt; }; struct map_groups *map_groups__new(void); void map_groups__delete(struct map_groups *mg); +static inline struct map_groups *map_groups__get(struct map_groups *mg) +{ + ++mg->refcnt; + return mg; +} + +void map_groups__put(struct map_groups *mg); + static inline struct kmap *map__kmap(struct map *map) { return (struct kmap *)(map + 1); |