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perf stat: Fix cmd_stat to release cpu_map 

Fix cmd_stat() to release cpu_map objects (aggr_map and
cpus_aggr_map) afterwards.

refcnt debugger shows that the cmd_stat initializes cpu_map
but not puts it.
  ----
  # ./perf stat -v ls
  ....
  REFCNT: BUG: Unreclaimed objects found.
  ==== [0] ====
  Unreclaimed cpu_map@0x29339c0
  Refcount +1 => 1 at
    ./perf(cpu_map__empty_new+0x6d) [0x4e64bd]
    ./perf(cmd_stat+0x5fe) [0x43594e]
    ./perf() [0x47b785]
    ./perf(main+0x617) [0x422587]
    /lib64/libc.so.6(__libc_start_main+0xf5) [0x7f2dff420af5]
    ./perf() [0x4226fd]
  REFCNT: Total 1 objects are not reclaimed.
    "cpu_map" leaks 1 objects
  ----

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20151209021127.10245.93697.stgit@localhost.localdomain
[ Remove NULL checks before calling the put operation, it checks it already ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Masami Hiramatsu 2015-12-09 11:11:27 +09:00 committed by Arnaldo Carvalho de Melo
parent bae32b50ea
commit 544c2ae7b1
1 changed files with 9 additions and 0 deletions
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9
tools/perf/builtin-stat.c
View File

@ -1094,6 +1094,14 @@ static int perf_stat_init_aggr_mode(void)
return cpus_aggr_map ? 0 : -ENOMEM;
}
static void perf_stat__exit_aggr_mode(void)
{
cpu_map__put(aggr_map);
cpu_map__put(cpus_aggr_map);
aggr_map = NULL;
cpus_aggr_map = NULL;
}
/*
* Add default attributes, if there were no attributes specified or
* if -d/--detailed, -d -d or -d -d -d is used:
@ -1442,6 +1450,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
if (!forever && status != -1 && !interval)
print_counters(NULL, argc, argv);
perf_stat__exit_aggr_mode();
perf_evlist__free_stats(evsel_list);
out:
perf_evlist__delete(evsel_list);