diff options
Diffstat (limited to 'kernel/sched/clock.c')
| -rw-r--r-- | kernel/sched/clock.c | 48 | 
1 files changed, 1 insertions, 47 deletions
diff --git a/kernel/sched/clock.c b/kernel/sched/clock.c index fedb967a9841..e85a725e5c34 100644 --- a/kernel/sched/clock.c +++ b/kernel/sched/clock.c @@ -318,6 +318,7 @@ u64 sched_clock_cpu(int cpu)  	return clock;  } +EXPORT_SYMBOL_GPL(sched_clock_cpu);  void sched_clock_tick(void)  { @@ -363,39 +364,6 @@ void sched_clock_idle_wakeup_event(u64 delta_ns)  }  EXPORT_SYMBOL_GPL(sched_clock_idle_wakeup_event); -/* - * As outlined at the top, provides a fast, high resolution, nanosecond - * time source that is monotonic per cpu argument and has bounded drift - * between cpus. - * - * ######################### BIG FAT WARNING ########################## - * # when comparing cpu_clock(i) to cpu_clock(j) for i != j, time can # - * # go backwards !!                                                  # - * #################################################################### - */ -u64 cpu_clock(int cpu) -{ -	if (!sched_clock_stable()) -		return sched_clock_cpu(cpu); - -	return sched_clock(); -} - -/* - * Similar to cpu_clock() for the current cpu. Time will only be observed - * to be monotonic if care is taken to only compare timestampt taken on the - * same CPU. - * - * See cpu_clock(). - */ -u64 local_clock(void) -{ -	if (!sched_clock_stable()) -		return sched_clock_cpu(raw_smp_processor_id()); - -	return sched_clock(); -} -  #else /* CONFIG_HAVE_UNSTABLE_SCHED_CLOCK */  void sched_clock_init(void) @@ -410,22 +378,8 @@ u64 sched_clock_cpu(int cpu)  	return sched_clock();  } - -u64 cpu_clock(int cpu) -{ -	return sched_clock(); -} - -u64 local_clock(void) -{ -	return sched_clock(); -} -  #endif /* CONFIG_HAVE_UNSTABLE_SCHED_CLOCK */ -EXPORT_SYMBOL_GPL(cpu_clock); -EXPORT_SYMBOL_GPL(local_clock); -  /*   * Running clock - returns the time that has elapsed while a guest has been   * running.  |