From: Arnaldo Carvalho de Melo <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Don Zickus <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
---
tools/perf/util/record.c | 11 +----------
tools/perf/util/util.c | 9 +--------
2 files changed, 2 insertions(+), 18 deletions(-)
diff --git a/tools/perf/util/record.c b/tools/perf/util/record.c
index cf69325b985f..8acd0df88b5c 100644
--- a/tools/perf/util/record.c
+++ b/tools/perf/util/record.c
@@ -137,16 +137,7 @@ void perf_evlist__config(struct perf_evlist *evlist,
struct record_opts *opts)
static int get_max_rate(unsigned int *rate)
{
- char path[PATH_MAX];
- const char *procfs = procfs__mountpoint();
-
- if (!procfs)
- return -1;
-
- snprintf(path, PATH_MAX,
- "%s/sys/kernel/perf_event_max_sample_rate", procfs);
-
- return filename__read_int(path, (int *) rate);
+ return sysctl__read_int("kernel/perf_event_max_sample_rate", (int
*)rate);
}
static int record_opts__config_freq(struct record_opts *opts)
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 41125e5b011e..b86744f29eef 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -506,16 +506,9 @@ const char *get_filename_for_perf_kvm(void)
int perf_event_paranoid(void)
{
- char path[PATH_MAX];
- const char *procfs = procfs__mountpoint();
int value;
- if (!procfs)
- return INT_MAX;
-
- scnprintf(path, PATH_MAX, "%s/sys/kernel/perf_event_paranoid", procfs);
-
- if (filename__read_int(path, &value))
+ if (sysctl__read_int("kernel/perf_event_paranoid", &value))
return INT_MAX;
return value;
--
1.9.3
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
