diff options
Diffstat (limited to 'tools')
-rw-r--r-- | tools/perf/util/record.c | 11 | ||||
-rw-r--r-- | 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) | |||
137 | 137 | ||
138 | static int get_max_rate(unsigned int *rate) | 138 | static int get_max_rate(unsigned int *rate) |
139 | { | 139 | { |
140 | char path[PATH_MAX]; | 140 | return sysctl__read_int("kernel/perf_event_max_sample_rate", (int *)rate); |
141 | const char *procfs = procfs__mountpoint(); | ||
142 | |||
143 | if (!procfs) | ||
144 | return -1; | ||
145 | |||
146 | snprintf(path, PATH_MAX, | ||
147 | "%s/sys/kernel/perf_event_max_sample_rate", procfs); | ||
148 | |||
149 | return filename__read_int(path, (int *) rate); | ||
150 | } | 141 | } |
151 | 142 | ||
152 | static int record_opts__config_freq(struct record_opts *opts) | 143 | 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) | |||
506 | 506 | ||
507 | int perf_event_paranoid(void) | 507 | int perf_event_paranoid(void) |
508 | { | 508 | { |
509 | char path[PATH_MAX]; | ||
510 | const char *procfs = procfs__mountpoint(); | ||
511 | int value; | 509 | int value; |
512 | 510 | ||
513 | if (!procfs) | 511 | if (sysctl__read_int("kernel/perf_event_paranoid", &value)) |
514 | return INT_MAX; | ||
515 | |||
516 | scnprintf(path, PATH_MAX, "%s/sys/kernel/perf_event_paranoid", procfs); | ||
517 | |||
518 | if (filename__read_int(path, &value)) | ||
519 | return INT_MAX; | 512 | return INT_MAX; |
520 | 513 | ||
521 | return value; | 514 | return value; |