diff options
| -rw-r--r-- | kernel/trace/trace_clock.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/kernel/trace/trace_clock.c b/kernel/trace/trace_clock.c index 2d4953f93560..05b176abfd30 100644 --- a/kernel/trace/trace_clock.c +++ b/kernel/trace/trace_clock.c | |||
| @@ -27,12 +27,19 @@ | |||
| 27 | */ | 27 | */ |
| 28 | u64 notrace trace_clock_local(void) | 28 | u64 notrace trace_clock_local(void) |
| 29 | { | 29 | { |
| 30 | unsigned long flags; | ||
| 31 | u64 clock; | ||
| 32 | |||
| 30 | /* | 33 | /* |
| 31 | * sched_clock() is an architecture implemented, fast, scalable, | 34 | * sched_clock() is an architecture implemented, fast, scalable, |
| 32 | * lockless clock. It is not guaranteed to be coherent across | 35 | * lockless clock. It is not guaranteed to be coherent across |
| 33 | * CPUs, nor across CPU idle events. | 36 | * CPUs, nor across CPU idle events. |
| 34 | */ | 37 | */ |
| 35 | return sched_clock(); | 38 | raw_local_irq_save(flags); |
| 39 | clock = sched_clock(); | ||
| 40 | raw_local_irq_restore(flags); | ||
| 41 | |||
| 42 | return clock; | ||
| 36 | } | 43 | } |
| 37 | 44 | ||
| 38 | /* | 45 | /* |
