diff options
| author | Namhyung Kim <namhyung@kernel.org> | 2015-05-20 19:03:41 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-05-27 18:21:44 +0300 |
| commit | 4bb11d012ab248d0e383008d725be0d26a74fac2 (patch) | |
| tree | 56d8b7f278f2dad61c936b981b2844249e48c129 /tools/perf/tests/dso-data.c | |
| parent | e840238d7c6afcde0f6402aac3a74723ee9c448f (diff) | |
| download | linux-4bb11d012ab248d0e383008d725be0d26a74fac2.tar.xz | |
perf tools: Add dso__data_get/put_fd()
Using dso__data_fd() in multi-thread environment is not safe since
returned fd can be closed and/or reused anytime.
So convert it to the dso__data_get/put_fd() pair to protect the access
with lock.
The original dso__data_fd() is deprecated and kept only for testing.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1432137821-10853-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/tests/dso-data.c')
| -rw-r--r-- | tools/perf/tests/dso-data.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/tools/perf/tests/dso-data.c b/tools/perf/tests/dso-data.c index 513e5febbe5a..3e41c61bd861 100644 --- a/tools/perf/tests/dso-data.c +++ b/tools/perf/tests/dso-data.c @@ -99,6 +99,17 @@ struct test_data_offset offsets[] = { }, }; +/* move it from util/dso.c for compatibility */ +static int dso__data_fd(struct dso *dso, struct machine *machine) +{ + int fd = dso__data_get_fd(dso, machine); + + if (fd >= 0) + dso__data_put_fd(dso); + + return fd; +} + int test__dso_data(void) { struct machine machine; |