diff options
Diffstat (limited to 'tools/perf/util/util.c')
| -rw-r--r-- | tools/perf/util/util.c | 26 |
1 files changed, 1 insertions, 25 deletions
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c index d5eab3f3323f..b86744f29eef 100644 --- a/tools/perf/util/util.c +++ b/tools/perf/util/util.c | |||
| @@ -442,23 +442,6 @@ unsigned long parse_tag_value(const char *str, struct parse_tag *tags) | |||
| 442 | return (unsigned long) -1; | 442 | return (unsigned long) -1; |
| 443 | } | 443 | } |
| 444 | 444 | ||
| 445 | int filename__read_int(const char *filename, int *value) | ||
| 446 | { | ||
| 447 | char line[64]; | ||
| 448 | int fd = open(filename, O_RDONLY), err = -1; | ||
| 449 | |||
| 450 | if (fd < 0) | ||
| 451 | return -1; | ||
| 452 | |||
| 453 | if (read(fd, line, sizeof(line)) > 0) { | ||
| 454 | *value = atoi(line); | ||
| 455 | err = 0; | ||
| 456 | } | ||
| 457 | |||
| 458 | close(fd); | ||
| 459 | return err; | ||
| 460 | } | ||
| 461 | |||
| 462 | int filename__read_str(const char *filename, char **buf, size_t *sizep) | 445 | int filename__read_str(const char *filename, char **buf, size_t *sizep) |
| 463 | { | 446 | { |
| 464 | size_t size = 0, alloc_size = 0; | 447 | size_t size = 0, alloc_size = 0; |
| @@ -523,16 +506,9 @@ const char *get_filename_for_perf_kvm(void) | |||
| 523 | 506 | ||
| 524 | int perf_event_paranoid(void) | 507 | int perf_event_paranoid(void) |
| 525 | { | 508 | { |
| 526 | char path[PATH_MAX]; | ||
| 527 | const char *procfs = procfs__mountpoint(); | ||
| 528 | int value; | 509 | int value; |
| 529 | 510 | ||
| 530 | if (!procfs) | 511 | if (sysctl__read_int("kernel/perf_event_paranoid", &value)) |
| 531 | return INT_MAX; | ||
| 532 | |||
| 533 | scnprintf(path, PATH_MAX, "%s/sys/kernel/perf_event_paranoid", procfs); | ||
| 534 | |||
| 535 | if (filename__read_int(path, &value)) | ||
| 536 | return INT_MAX; | 512 | return INT_MAX; |
| 537 | 513 | ||
| 538 | return value; | 514 | return value; |
