Messages in this thread | | | Date | Fri, 28 Aug 2015 14:47:06 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [PATCH V7 5/8] perf evsel: Add a backpointer to the evlist a evsel is in |
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Em Fri, Aug 28, 2015 at 05:48:06AM -0400, Kan Liang escreveu: > From: Arnaldo Carvalho de Melo <acme@redhat.com> > > So that functions that deal primarily with an evsel to access > information that concerns the whole evlist it is in.
Also already in my perf/core branch.
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> > Signed-off-by: Kan Liang <kan.liang@intel.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 373f65b..a8cc440 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; > -- > 1.8.3.1
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