Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer type cleanups from Thomas Gleixner:
 "This series does a tree wide cleanup of types related to
  timers/timekeeping.

   - Get rid of cycles_t and use a plain u64. The type is not really
     helpful and caused more confusion than clarity

   - Get rid of the ktime union. The union has become useless as we use
     the scalar nanoseconds storage unconditionally now. The 32bit
     timespec alike storage got removed due to the Y2038 limitations
     some time ago.

     That leaves the odd union access around for no reason. Clean it up.

  Both changes have been done with coccinelle and a small amount of
  manual mopping up"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  ktime: Get rid of ktime_equal()
  ktime: Cleanup ktime_set() usage
  ktime: Get rid of the union
  clocksource: Use a plain u64 instead of cycle_t
This commit is contained in:
Linus Torvalds
2016-12-25 14:30:04 -08:00
當前提交 3ddc76dfc7
共有 227 個文件被更改,包括 604 次插入665 次删除

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@@ -791,7 +791,7 @@ static union hpet_lock hpet __cacheline_aligned = {
{ .lock = __ARCH_SPIN_LOCK_UNLOCKED, },
};
static cycle_t read_hpet(struct clocksource *cs)
static u64 read_hpet(struct clocksource *cs)
{
unsigned long flags;
union hpet_lock old, new;
@@ -802,7 +802,7 @@ static cycle_t read_hpet(struct clocksource *cs)
* Read HPET directly if in NMI.
*/
if (in_nmi())
return (cycle_t)hpet_readl(HPET_COUNTER);
return (u64)hpet_readl(HPET_COUNTER);
/*
* Read the current state of the lock and HPET value atomically.
@@ -821,7 +821,7 @@ static cycle_t read_hpet(struct clocksource *cs)
WRITE_ONCE(hpet.value, new.value);
arch_spin_unlock(&hpet.lock);
local_irq_restore(flags);
return (cycle_t)new.value;
return (u64)new.value;
}
local_irq_restore(flags);
@@ -843,15 +843,15 @@ contended:
new.lockval = READ_ONCE(hpet.lockval);
} while ((new.value == old.value) && arch_spin_is_locked(&new.lock));
return (cycle_t)new.value;
return (u64)new.value;
}
#else
/*
* For UP or 32-bit.
*/
static cycle_t read_hpet(struct clocksource *cs)
static u64 read_hpet(struct clocksource *cs)
{
return (cycle_t)hpet_readl(HPET_COUNTER);
return (u64)hpet_readl(HPET_COUNTER);
}
#endif
@@ -867,7 +867,7 @@ static struct clocksource clocksource_hpet = {
static int hpet_clocksource_register(void)
{
u64 start, now;
cycle_t t1;
u64 t1;
/* Start the counter */
hpet_restart_counter();