Commit-ID: 61fa0e94ca6ab62db5e095a5528150bf9962196d
Gitweb: http://git.kernel.org/tip/61fa0e94ca6ab62db5e095a5528150bf9962196d
Author: Namhyung Kim <namhyung@xxxxxxxxxx>
AuthorDate: Thu, 10 Dec 2015 16:53:20 +0900
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Thu, 10 Dec 2015 15:56:58 -0300
perf top: Delete half-processed hist entries when exit
After sample processing is done, hist entries are in both of
hists->entries and hists->entries_in (or hists->entries_collapsed). So
I guess perf report does not have leaks on hists.
But for perf top, it's possible to have half-processed entries which are
only in hists->entries_in. Eventually they will go to the
hists->entries and get freed but they cannot be deleted by current
hists__delete_entries(). This patch adds hists__delete_all_entries
function to delete those entries.
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Tested-and-Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Andi Kleen <andi@xxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1449734015-9148-2-git-send-email-namhyung@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/hist.c | 26 +++++++++++++++++++++++++-
1 file changed, 25 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 565ea35..56e97f5 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -270,6 +270,8 @@ static void hists__delete_entry(struct hists *hists, struct hist_entry *he)
if (sort__need_collapse)
rb_erase(&he->rb_node_in, &hists->entries_collapsed);
+ else
+ rb_erase(&he->rb_node_in, hists->entries_in);
--hists->nr_entries;
if (!he->filtered)
@@ -1567,11 +1569,33 @@ static int hists_evsel__init(struct perf_evsel *evsel)
return 0;
}
+static void hists__delete_remaining_entries(struct rb_root *root)
+{
+ struct rb_node *node;
+ struct hist_entry *he;
+
+ while (!RB_EMPTY_ROOT(root)) {
+ node = rb_first(root);
+ rb_erase(node, root);
+
+ he = rb_entry(node, struct hist_entry, rb_node_in);
+ hist_entry__delete(he);
+ }
+}
+
+static void hists__delete_all_entries(struct hists *hists)
+{
+ hists__delete_entries(hists);
+ hists__delete_remaining_entries(&hists->entries_in_array[0]);
+ hists__delete_remaining_entries(&hists->entries_in_array[1]);
+ hists__delete_remaining_entries(&hists->entries_collapsed);
+}
+
static void hists_evsel__exit(struct perf_evsel *evsel)
{
struct hists *hists = evsel__hists(evsel);
- hists__delete_entries(hists);
+ hists__delete_all_entries(hists);
}
/*
--
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