diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-08-27 15:07:40 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-08-28 20:53:49 +0300 |
| commit | d49e4695077278ee3016cd242967de23072ec331 (patch) | |
| tree | 7ec67af5457ca6ffadc37c2c0c8110b3105df773 /tools/perf | |
| parent | a598bb5e3558509cbb8aa1d422071ef61fda9d77 (diff) | |
| download | linux-d49e4695077278ee3016cd242967de23072ec331.tar.xz | |
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.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1440677263-21954-5-git-send-email-kan.liang@intel.com
Signed-off-by: Kan Liang <kan.liang@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/evlist.c | 2 | ||||
| -rw-r--r-- | tools/perf/util/evsel.c | 2 | ||||
| -rw-r--r-- | tools/perf/util/evsel.h | 4 |
3 files changed, 8 insertions, 0 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index e9a5d432902c..8d00039d6a20 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 b096ef7a240c..bac25f41a751 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 93ac6b128149..298e6bbca200 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; |