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authorNamhyung Kim <namhyung@kernel.org>2014-12-30 08:38:13 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2015-01-08 17:56:35 +0300
commitd114960c488b5a95705a04bba305f931cef0efd6 (patch)
treef77f5ed8815a9fd1ce543b837be35c70d8af9c8c /tools/perf/util/callchain.h
parent5ca8271022da8583f0d618aeda5b2bae785e7882 (diff)
downloadlinux-d114960c488b5a95705a04bba305f931cef0efd6.tar.xz
perf callchain: Free callchains when hist entries are deleted
Markus reported that "perf top -g" can leak ~300MB per second on his machine. This is partly because it missed to free callchains when hist entries are deleted. Fix it. Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Markus Trippelsdorf <markus@trippelsdorf.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20141230053813.GD6081@sejong Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/callchain.h')
-rw-r--r--tools/perf/util/callchain.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index dbc08cf5f970..c0ec1acc38e4 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -198,4 +198,6 @@ static inline int arch_skip_callchain_idx(struct thread *thread __maybe_unused,
char *callchain_list__sym_name(struct callchain_list *cl,
char *bf, size_t bfsize, bool show_dso);
+void free_callchain(struct callchain_root *root);
+
#endif /* __PERF_CALLCHAIN_H */