From: Arnaldo Carvalho de Melo <a...@redhat.com> It is not really closing the cgroup, but instead dropping a reference count and if it hits zero, then calling delete, which will, among other cleanup shores, close the cgroup fd.
So it is really dropping a reference to that cgroup, and the method name for that is "put", so rename close_cgroup() to cgroup__put() to follow this naming convention. Cc: Adrian Hunter <adrian.hun...@intel.com> Cc: David Ahern <dsah...@gmail.com> Cc: Jiri Olsa <jo...@kernel.org> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Stephane Eranian <eran...@google.com> Cc: Wang Nan <wangn...@huawei.com> Link: https://lkml.kernel.org/n/tip-sccxpnd7bgwc1llgokt6f...@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/util/cgroup.c | 5 ++--- tools/perf/util/cgroup.h | 3 ++- tools/perf/util/evsel.c | 2 +- 3 files changed, 5 insertions(+), 5 deletions(-) diff --git a/tools/perf/util/cgroup.c b/tools/perf/util/cgroup.c index 4dd52feb1ae6..b078d54d4245 100644 --- a/tools/perf/util/cgroup.c +++ b/tools/perf/util/cgroup.c @@ -135,9 +135,8 @@ static int add_cgroup(struct perf_evlist *evlist, char *str) goto found; n++; } - if (refcount_dec_and_test(&cgrp->refcnt)) - free(cgrp); + cgroup__put(cgrp); return -1; found: counter->cgrp = cgrp; @@ -151,7 +150,7 @@ static void cgroup__delete(struct cgroup *cgroup) free(cgroup); } -void close_cgroup(struct cgroup *cgrp) +void cgroup__put(struct cgroup *cgrp) { if (cgrp && refcount_dec_and_test(&cgrp->refcnt)) { cgroup__delete(cgrp); diff --git a/tools/perf/util/cgroup.h b/tools/perf/util/cgroup.h index 934daa8e4c19..69169fbf8d13 100644 --- a/tools/perf/util/cgroup.h +++ b/tools/perf/util/cgroup.h @@ -14,7 +14,8 @@ struct cgroup { extern int nr_cgroups; /* number of explicit cgroups defined */ -void close_cgroup(struct cgroup *cgrp); + +void cgroup__put(struct cgroup *cgroup); int parse_cgroups(const struct option *opt, const char *str, int unset); diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index b56e1c2ddaee..f1f883bb41a8 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -1233,7 +1233,7 @@ void perf_evsel__exit(struct perf_evsel *evsel) perf_evsel__free_fd(evsel); perf_evsel__free_id(evsel); perf_evsel__free_config_terms(evsel); - close_cgroup(evsel->cgrp); + cgroup__put(evsel->cgrp); cpu_map__put(evsel->cpus); cpu_map__put(evsel->own_cpus); thread_map__put(evsel->threads); -- 2.14.3
