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perf session: Make ordered_events reusable

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ordered_events__free() leaves linked lists and timestamps not cleared,
so unable to be reused after ordered_events__free(). Which is inconvenient
after 'perf record' supports generating multiple perf.data output and
process build-ids for each of them.

Use ordered_events__reinit() for this.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1460535673-159866-2-git-send-email-wangnan0@huawei.com
Signed-off-by: He Kuang <hekuang@huawei.com>
[ Split from larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Wang Nan 2016-04-13 08:21:04 +00:00 committed by Arnaldo Carvalho de Melo
parent 4532f64297
commit b26dc73018
1 changed files with 5 additions and 1 deletions
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6
tools/perf/util/session.c
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@ -1836,7 +1836,11 @@ static int __perf_session__process_events(struct perf_session *session,
out_err:
ui_progress__finish();
perf_session__warn_about_errors(session);
ordered_events__free(&session->ordered_events);
/*
* We may switching perf.data output, make ordered_events
* reusable.
*/
ordered_events__reinit(&session->ordered_events);
auxtrace__free_events(session);
session->one_mmap = false;
return err;