diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-05-17 14:42:39 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-05-17 14:50:38 -0300 |
| commit | 7014e0e3bf9b0d0b6221eb7d2f8a1f690423dd73 (patch) | |
| tree | 37da2c3997d4b2c03a4e1698481e8608925b11cd /tools/perf | |
| parent | 25a7d914274de38637c5199342eb90a297361386 (diff) | |
tools lib api fs tracing_path: Introduce opendir() method
That takes care of using the right call to get the tracing_path
directory, the one that will end up calling tracing_path_set() to figure
out where tracefs is mounted.
One more step in doing just lazy reading of system structures to reduce
the number of operations done unconditionaly at 'perf' start.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-42zzi0f274909bg9mxzl81bu@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/tests/parse-events.c | 2 | ||||
| -rw-r--r-- | tools/perf/util/parse-events.c | 8 |
2 files changed, 5 insertions, 5 deletions
diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c index 6d57d7082637..b9ebe15afb13 100644 --- a/tools/perf/tests/parse-events.c +++ b/tools/perf/tests/parse-events.c @@ -1323,7 +1323,7 @@ static int count_tracepoints(void) DIR *events_dir; int cnt = 0; - events_dir = opendir(tracing_events_path); + events_dir = tracing_events__opendir(); TEST_ASSERT_VAL("Can't open events dir", events_dir); diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 24668300b327..15eec49e71a1 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -191,7 +191,7 @@ struct tracepoint_path *tracepoint_id_to_path(u64 config) char evt_path[MAXPATHLEN]; char *dir_path; - sys_dir = opendir(tracing_events_path); + sys_dir = tracing_events__opendir(); if (!sys_dir) return NULL; @@ -578,7 +578,7 @@ static int add_tracepoint_multi_sys(struct list_head *list, int *idx, DIR *events_dir; int ret = 0; - events_dir = opendir(tracing_events_path); + events_dir = tracing_events__opendir(); if (!events_dir) { tracepoint_error(err, errno, sys_name, evt_name); return -1; @@ -2106,7 +2106,7 @@ void print_tracepoint_events(const char *subsys_glob, const char *event_glob, bool evt_num_known = false; restart: - sys_dir = opendir(tracing_events_path); + sys_dir = tracing_events__opendir(); if (!sys_dir) return; @@ -2200,7 +2200,7 @@ int is_valid_tracepoint(const char *event_string) char evt_path[MAXPATHLEN]; char *dir_path; - sys_dir = opendir(tracing_events_path); + sys_dir = tracing_events__opendir(); if (!sys_dir) return 0; |