diff options
Diffstat (limited to 'tools/perf/util/util.c')
| -rw-r--r-- | tools/perf/util/util.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c index 969ae560dad9..d707c9624dd9 100644 --- a/tools/perf/util/util.c +++ b/tools/perf/util/util.c @@ -55,6 +55,24 @@ int sysctl__max_stack(void) return sysctl_perf_event_max_stack; } +bool sysctl__nmi_watchdog_enabled(void) +{ + static bool cached; + static bool nmi_watchdog; + int value; + + if (cached) + return nmi_watchdog; + + if (sysctl__read_int("kernel/nmi_watchdog", &value) < 0) + return false; + + nmi_watchdog = (value > 0) ? true : false; + cached = true; + + return nmi_watchdog; +} + bool test_attr__enabled; bool perf_host = true; |