Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753181AbbH1REo (ORCPT ); Fri, 28 Aug 2015 13:04:44 -0400 Received: from mga02.intel.com ([134.134.136.20]:26823 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752831AbbH1RED (ORCPT ); Fri, 28 Aug 2015 13:04:03 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,425,1437462000"; d="scan'208";a="777614782" From: Kan Liang To: acme@kernel.org, jolsa@kernel.org Cc: a.p.zijlstra@chello.nl, luto@kernel.org, mingo@redhat.com, eranian@google.com, ak@linux.intel.com, mark.rutland@arm.com, adrian.hunter@intel.com, namhyung@kernel.org, linux-kernel@vger.kernel.org, Kan Liang , Arnaldo Carvalho de Melo Subject: [PATCH V7 5/8] perf evsel: Add a backpointer to the evlist a evsel is in Date: Fri, 28 Aug 2015 05:48:06 -0400 Message-Id: <1440755289-30939-6-git-send-email-kan.liang@intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1440755289-30939-1-git-send-email-kan.liang@intel.com> References: <1440755289-30939-1-git-send-email-kan.liang@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2906 Lines: 83 From: Arnaldo Carvalho de Melo So that functions that deal primarily with an evsel to access information that concerns the whole evlist it is in. Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Kan Liang --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/