linux-kernel - [PATCH 32/39] perf evlist: Add perf_evlist_

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Message-Id: <1443474504-16528-33-git-send-email-acme@kernel.org>
Date:	Mon, 28 Sep 2015 18:08:17 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	linux-kernel@...r.kernel.org,
	Adrian Hunter <adrian.hunter@...el.com>,
	Jiri Olsa <jolsa@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 32/39] perf evlist: Add perf_evlist__remove()

From: Adrian Hunter <adrian.hunter@...el.com>

Add a counterpart to perf_evlist__add() that does the opposite and
deletes the evsel.

This will be used by perf inject to remove unwanted evsels.

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Link: http://lkml.kernel.org/r/1443186956-18718-23-git-send-email-adrian.hunter@intel.com
[ Renamed it from perf_evlist__del() to perf_evlist__remove() and removed the perf_evsel__delete() call ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>

Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/evlist.c | 7 +++++++
 tools/perf/util/evlist.h | 1 +
 2 files changed, 8 insertions(+)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index e6760380d731..89546228b8ed 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -165,6 +165,13 @@ void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry)
 	__perf_evlist__propagate_maps(evlist, entry);
 }
 
+void perf_evlist__remove(struct perf_evlist *evlist, struct perf_evsel *evsel)
+{
+	evsel->evlist = NULL;
+	list_del_init(&evsel->node);
+	evlist->nr_entries -= 1;
+}
+
 void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
 				   struct list_head *list)
 {
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 0edf0d4f4efa..66bc9d4c0869 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -73,6 +73,7 @@ void perf_evlist__exit(struct perf_evlist *evlist);
 void perf_evlist__delete(struct perf_evlist *evlist);
 
 void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
+void perf_evlist__remove(struct perf_evlist *evlist, struct perf_evsel *evsel);
 int perf_evlist__add_default(struct perf_evlist *evlist);
 int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
 				     struct perf_event_attr *attrs, size_t nr_attrs);
-- 
2.1.0

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