diff options
Diffstat (limited to 'tools/perf/util/smt.c')
| -rw-r--r-- | tools/perf/util/smt.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/perf/util/smt.c b/tools/perf/util/smt.c index 3b791ef2cd50..8481842e9edb 100644 --- a/tools/perf/util/smt.c +++ b/tools/perf/util/smt.c @@ -24,13 +24,13 @@ int smt_on(void) snprintf(fn, sizeof fn, "devices/system/cpu/cpu%d/topology/core_cpus", cpu); - if (access(fn, F_OK) == -1) { + if (sysfs__read_str(fn, &str, &strlen) < 0) { snprintf(fn, sizeof fn, "devices/system/cpu/cpu%d/topology/thread_siblings", cpu); + if (sysfs__read_str(fn, &str, &strlen) < 0) + continue; } - if (sysfs__read_str(fn, &str, &strlen) < 0) - continue; /* Entry is hex, but does not have 0x, so need custom parser */ siblings = strtoull(str, NULL, 16); free(str); |