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authorThomas Gleixner <tglx@linutronix.de>2016-12-25 11:38:40 +0100
committerThomas Gleixner <tglx@linutronix.de>2016-12-25 17:21:22 +0100
commit2456e855354415bfaeb7badaa14e11b3e02c8466 (patch)
tree6fc81500645174c246c3fdb568cba32aa01960c6 /kernel/time/tick-sched.c
parenta5a1d1c2914b5316924c7893eb683a5420ebd3be (diff)
ktime: Get rid of the union
ktime is a union because the initial implementation stored the time in scalar nanoseconds on 64 bit machine and in a endianess optimized timespec variant for 32bit machines. The Y2038 cleanup removed the timespec variant and switched everything to scalar nanoseconds. The union remained, but become completely pointless. Get rid of the union and just keep ktime_t as simple typedef of type s64. The conversion was done with coccinelle and some manual mopping up. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org>
Diffstat (limited to 'kernel/time/tick-sched.c')
-rw-r--r--kernel/time/tick-sched.c22
1 files changed, 11 insertions, 11 deletions
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 71496a20e670..2c115fdab397 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -58,21 +58,21 @@ static void tick_do_update_jiffies64(ktime_t now)
* Do a quick check without holding jiffies_lock:
*/
delta = ktime_sub(now, last_jiffies_update);
- if (delta.tv64 < tick_period.tv64)
+ if (delta < tick_period)
return;
/* Reevaluate with jiffies_lock held */
write_seqlock(&jiffies_lock);
delta = ktime_sub(now, last_jiffies_update);
- if (delta.tv64 >= tick_period.tv64) {
+ if (delta >= tick_period) {
delta = ktime_sub(delta, tick_period);
last_jiffies_update = ktime_add(last_jiffies_update,
tick_period);
/* Slow path for long timeouts */
- if (unlikely(delta.tv64 >= tick_period.tv64)) {
+ if (unlikely(delta >= tick_period)) {
s64 incr = ktime_to_ns(tick_period);
ticks = ktime_divns(delta, incr);
@@ -101,7 +101,7 @@ static ktime_t tick_init_jiffy_update(void)
write_seqlock(&jiffies_lock);
/* Did we start the jiffies update yet ? */
- if (last_jiffies_update.tv64 == 0)
+ if (last_jiffies_update == 0)
last_jiffies_update = tick_next_period;
period = last_jiffies_update;
write_sequnlock(&jiffies_lock);
@@ -669,7 +669,7 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts,
/* Read jiffies and the time when jiffies were updated last */
do {
seq = read_seqbegin(&jiffies_lock);
- basemono = last_jiffies_update.tv64;
+ basemono = last_jiffies_update;
basejiff = jiffies;
} while (read_seqretry(&jiffies_lock, seq));
ts->last_jiffies = basejiff;
@@ -697,7 +697,7 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts,
*/
delta = next_tick - basemono;
if (delta <= (u64)TICK_NSEC) {
- tick.tv64 = 0;
+ tick = 0;
/*
* Tell the timer code that the base is not idle, i.e. undo
@@ -764,10 +764,10 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts,
expires = KTIME_MAX;
expires = min_t(u64, expires, next_tick);
- tick.tv64 = expires;
+ tick = expires;
/* Skip reprogram of event if its not changed */
- if (ts->tick_stopped && (expires == dev->next_event.tv64))
+ if (ts->tick_stopped && (expires == dev->next_event))
goto out;
/*
@@ -864,7 +864,7 @@ static bool can_stop_idle_tick(int cpu, struct tick_sched *ts)
}
if (unlikely(ts->nohz_mode == NOHZ_MODE_INACTIVE)) {
- ts->sleep_length = (ktime_t) { .tv64 = NSEC_PER_SEC/HZ };
+ ts->sleep_length = NSEC_PER_SEC / HZ;
return false;
}
@@ -914,7 +914,7 @@ static void __tick_nohz_idle_enter(struct tick_sched *ts)
ts->idle_calls++;
expires = tick_nohz_stop_sched_tick(ts, now, cpu);
- if (expires.tv64 > 0LL) {
+ if (expires > 0LL) {
ts->idle_sleeps++;
ts->idle_expires = expires;
}
@@ -1051,7 +1051,7 @@ static void tick_nohz_handler(struct clock_event_device *dev)
struct pt_regs *regs = get_irq_regs();
ktime_t now = ktime_get();
- dev->next_event.tv64 = KTIME_MAX;
+ dev->next_event = KTIME_MAX;
tick_sched_do_timer(now);
tick_sched_handle(ts, regs);