diff options
Diffstat (limited to 'kernel/trace/trace_clock.c')
-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 | /* |