Commit-ID: d49e4695077278ee3016cd242967de23072ec331 Gitweb: http://git.kernel.org/tip/d49e4695077278ee3016cd242967de23072ec331 Author: Arnaldo Carvalho de Melo <a...@redhat.com> AuthorDate: Thu, 27 Aug 2015 08:07:40 -0400 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Fri, 28 Aug 2015 14:53:49 -0300
perf evsel: Add a backpointer to the evlist a evsel is in So that functions that deal primarily with an evsel to access information that concerns the whole evlist it is in. Cc: Adrian Hunter <adrian.hun...@intel.com> Cc: Andi Kleen <a...@linux.intel.com> Cc: Andy Lutomirski <l...@kernel.org> Cc: Jiri Olsa <jo...@kernel.org> Cc: Kan Liang <kan.li...@intel.com> Cc: Mark Rutland <mark.rutl...@arm.com> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Cc: Stephane Eranian <eran...@google.com> Link: http://lkml.kernel.org/r/1440677263-21954-5-git-send-email-kan.li...@intel.com Signed-off-by: Kan Liang <kan.li...@intel.com> Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/util/evlist.c | 2 ++ tools/perf/util/evsel.c | 2 ++ tools/perf/util/evsel.h | 4 ++++ 3 files changed, 8 insertions(+) diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index e9a5d43..8d00039 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -98,6 +98,7 @@ static void perf_evlist__purge(struct perf_evlist *evlist) evlist__for_each_safe(evlist, n, pos) { list_del_init(&pos->node); + pos->evlist = NULL; perf_evsel__delete(pos); } @@ -125,6 +126,7 @@ void perf_evlist__delete(struct perf_evlist *evlist) void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry) { + entry->evlist = evlist; list_add_tail(&entry->node, &evlist->entries); entry->idx = evlist->nr_entries; entry->tracking = !entry->idx; diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index b096ef7..bac25f4 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -206,6 +206,7 @@ void perf_evsel__init(struct perf_evsel *evsel, evsel->leader = evsel; evsel->unit = ""; evsel->scale = 1.0; + evsel->evlist = NULL; INIT_LIST_HEAD(&evsel->node); INIT_LIST_HEAD(&evsel->config_terms); perf_evsel__object.init(evsel); @@ -1026,6 +1027,7 @@ void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads) void perf_evsel__exit(struct perf_evsel *evsel) { assert(list_empty(&evsel->node)); + assert(evsel->evlist == NULL); perf_evsel__free_fd(evsel); perf_evsel__free_id(evsel); perf_evsel__free_config_terms(evsel); diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index 93ac6b1..298e6bb 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -60,6 +60,9 @@ struct perf_evsel_config_term { /** struct perf_evsel - event selector * + * @evlist - evlist this evsel is in, if it is in one. + * @node - To insert it into evlist->entries or in other list_heads, say in + * the event parsing routines. * @name - Can be set to retain the original event name passed by the user, * so that when showing results in tools such as 'perf stat', we * show the name used, not some alias. @@ -73,6 +76,7 @@ struct perf_evsel_config_term { */ struct perf_evsel { struct list_head node; + struct perf_evlist *evlist; struct perf_event_attr attr; char *filter; struct xyarray *fd; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
