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| author | Riccardo Mancini <rickyman7@gmail.com> | 2021-07-15 18:07:18 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-28 13:30:54 +0200 |
| commit | 51351c6d5a18a37d7c7b6c66d098c1a813df94ca (patch) | |
| tree | e2f789a3ba13c0db24fd8dad4aa5635a8573086d /tools | |
| parent | d2bfc3eda914c8adaf0798b72439559f4da4f129 (diff) | |
| download | linux-stable-51351c6d5a18a37d7c7b6c66d098c1a813df94ca.tar.gz linux-stable-51351c6d5a18a37d7c7b6c66d098c1a813df94ca.tar.bz2 linux-stable-51351c6d5a18a37d7c7b6c66d098c1a813df94ca.zip | |
perf script: Fix memory 'threads' and 'cpus' leaks on exit
[ Upstream commit faf3ac305d61341c74e5cdd9e41daecce7f67bfe ]
ASan reports several memory leaks while running:
# perf test "82: Use vfs_getname probe to get syscall args filenames"
Two of these are caused by some refcounts not being decreased on
perf-script exit, namely script.threads and script.cpus.
This patch adds the missing __put calls in a new perf_script__exit
function, which is called at the end of cmd_script.
This patch concludes the fixes of all remaining memory leaks in perf
test "82: Use vfs_getname probe to get syscall args filenames".
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: cfc8874a48599249 ("perf script: Process cpu/threads maps")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/5ee73b19791c6fa9d24c4d57f4ac1a23609400d7.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/builtin-script.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index da016f398aa8..f3ff825d9dd3 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -2474,6 +2474,12 @@ static void perf_script__exit_per_event_dump_stats(struct perf_script *script) } } +static void perf_script__exit(struct perf_script *script) +{ + perf_thread_map__put(script->threads); + perf_cpu_map__put(script->cpus); +} + static int __cmd_script(struct perf_script *script) { int ret; @@ -3893,6 +3899,7 @@ out_delete: perf_evlist__free_stats(session->evlist); perf_session__delete(session); + perf_script__exit(&script); if (script_started) cleanup_scripting(); |