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Revert "timer: Added usleep_range timer"

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This reverts commit 18464b0b75.
This commit is contained in:
黄涛 2011-07-30 15:54:41 +08:00
parent 57a57994d5
commit 3f2bbceb46
2 changed files with 0 additions and 23 deletions
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1
include/linux/delay.h
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@ -45,7 +45,6 @@ extern unsigned long lpj_fine;
void calibrate_delay(void);
void msleep(unsigned int msecs);
unsigned long msleep_interruptible(unsigned int msecs);
void usleep_range(unsigned long min, unsigned long max);
static inline void ssleep(unsigned int seconds)
{

22
kernel/timer.c
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@ -1690,25 +1690,3 @@ unsigned long msleep_interruptible(unsigned int msecs)
}
EXPORT_SYMBOL(msleep_interruptible);
static int __sched do_usleep_range(unsigned long min, unsigned long max)
{
ktime_t kmin;
unsigned long delta;
kmin = ktime_set(0, min * NSEC_PER_USEC);
delta = (max - min) * NSEC_PER_USEC;
return schedule_hrtimeout_range(&kmin, delta, HRTIMER_MODE_REL);
}
/**
* usleep_range - Drop in replacement for udelay where wakeup is flexible
* @min: Minimum time in usecs to sleep
* @max: Maximum time in usecs to sleep
*/
void usleep_range(unsigned long min, unsigned long max)
{
__set_current_state(TASK_UNINTERRUPTIBLE);
do_usleep_range(min, max);
}
EXPORT_SYMBOL(usleep_range);