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ktime: Cleanup ktime_set() usage

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ktime_set(S,N) was required for the timespec storage type and is still
useful for situations where a Seconds and Nanoseconds part of a time value
needs to be converted. For anything where the Seconds argument is 0, this
is pointless and can be replaced with a simple assignment.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
This commit is contained in:
Thomas Gleixner
2016-12-25 12:30:41 +01:00
parent 2456e85535
commit 8b0e195314
56 changed files with 84 additions and 95 deletions
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3
arch/powerpc/kvm/book3s_hv.c
View File

@@ -1872,8 +1872,7 @@ static void kvmppc_set_timer(struct kvm_vcpu *vcpu)
}
dec_nsec = (vcpu->arch.dec_expires - now) * NSEC_PER_SEC
/ tb_ticks_per_sec;
hrtimer_start(&vcpu->arch.dec_timer, ktime_set(0, dec_nsec),
HRTIMER_MODE_REL);
hrtimer_start(&vcpu->arch.dec_timer, dec_nsec, HRTIMER_MODE_REL);
vcpu->arch.timer_running = 1;
}

4
arch/powerpc/oprofile/cell/spu_profiler.c
View File

@@ -180,7 +180,7 @@ static enum hrtimer_restart profile_spus(struct hrtimer *timer)
smp_wmb(); /* insure spu event buffer updates are written */
/* don't want events intermingled... */
kt = ktime_set(0, profiling_interval);
kt = profiling_interval;
if (!spu_prof_running)
goto stop;
hrtimer_forward(timer, timer->base->get_time(), kt);
@@ -204,7 +204,7 @@ int start_spu_profiling_cycles(unsigned int cycles_reset)
ktime_t kt;
pr_debug("timer resolution: %lu\n", TICK_NSEC);
kt = ktime_set(0, profiling_interval);
kt = profiling_interval;
hrtimer_init(&timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
hrtimer_set_expires(&timer, kt);
timer.function = profile_spus;

2
arch/s390/kvm/interrupt.c
View File

@@ -1019,7 +1019,7 @@ int kvm_s390_handle_wait(struct kvm_vcpu *vcpu)
return 0;
__set_cpu_idle(vcpu);
hrtimer_start(&vcpu->arch.ckc_timer, ktime_set (0, sltime) , HRTIMER_MODE_REL);
hrtimer_start(&vcpu->arch.ckc_timer, sltime, HRTIMER_MODE_REL);
VCPU_EVENT(vcpu, 4, "enabled wait: %llu ns", sltime);
no_timer:
srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx);

4
arch/x86/kvm/lapic.c
View File

@@ -1106,7 +1106,7 @@ static u32 apic_get_tmcct(struct kvm_lapic *apic)
now = ktime_get();
remaining = ktime_sub(apic->lapic_timer.target_expiration, now);
if (ktime_to_ns(remaining) < 0)
remaining = ktime_set(0, 0);
remaining = 0;
ns = mod_64(ktime_to_ns(remaining), apic->lapic_timer.period);
tmcct = div64_u64(ns,
@@ -2057,7 +2057,7 @@ void kvm_inject_apic_timer_irqs(struct kvm_vcpu *vcpu)
apic->lapic_timer.tscdeadline = 0;
if (apic_lvtt_oneshot(apic)) {
apic->lapic_timer.tscdeadline = 0;
apic->lapic_timer.target_expiration = ktime_set(0, 0);
apic->lapic_timer.target_expiration = 0;
}
atomic_set(&apic->lapic_timer.pending, 0);
}