diff options
| author | Frederic Weisbecker <fweisbec@gmail.com> | 2017-01-31 04:09:39 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-02-01 09:13:57 +0100 |
| commit | 18b43a9bd7ae91185e398dd983fb4fffb9e81b3a (patch) | |
| tree | 6b7b4afb75cb9b6fe0d42ca61fe460ab5ed82e27 /kernel/sched/cputime.c | |
| parent | be9095ed4fb3cf69e9fdf64e28ff6b5bd0ec7215 (diff) | |
| download | linux-18b43a9bd7ae91185e398dd983fb4fffb9e81b3a.tar.bz2 | |
sched/cputime: Push time to account_idle_time() in nsecs
This is one more step toward converting cputime accounting to pure nsecs.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Wanpeng Li <wanpeng.li@hotmail.com>
Link: http://lkml.kernel.org/r/1485832191-26889-24-git-send-email-fweisbec@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched/cputime.c')
| -rw-r--r-- | kernel/sched/cputime.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c index 9a8028760930..fd5375f956fe 100644 --- a/kernel/sched/cputime.c +++ b/kernel/sched/cputime.c @@ -218,15 +218,15 @@ void account_steal_time(u64 cputime) * Account for idle time. * @cputime: the cpu time spent in idle wait */ -void account_idle_time(cputime_t cputime) +void account_idle_time(u64 cputime) { u64 *cpustat = kcpustat_this_cpu->cpustat; struct rq *rq = this_rq(); if (atomic_read(&rq->nr_iowait) > 0) - cpustat[CPUTIME_IOWAIT] += cputime_to_nsecs(cputime); + cpustat[CPUTIME_IOWAIT] += cputime; else - cpustat[CPUTIME_IDLE] += cputime_to_nsecs(cputime); + cpustat[CPUTIME_IDLE] += cputime; } /* @@ -392,7 +392,7 @@ static void irqtime_account_process_tick(struct task_struct *p, int user_tick, } else if (user_tick) { account_user_time(p, cputime); } else if (p == rq->idle) { - account_idle_time(old_cputime); + account_idle_time(cputime); } else if (p->flags & PF_VCPU) { /* System time or guest time */ account_guest_time(p, old_cputime); @@ -504,7 +504,7 @@ void account_process_tick(struct task_struct *p, int user_tick) else if ((p != rq->idle) || (irq_count() != HARDIRQ_OFFSET)) account_system_time(p, HARDIRQ_OFFSET, old_cputime); else - account_idle_time(old_cputime); + account_idle_time(cputime); } /* @@ -513,15 +513,15 @@ void account_process_tick(struct task_struct *p, int user_tick) */ void account_idle_ticks(unsigned long ticks) { - cputime_t cputime, steal; + u64 cputime, steal; if (sched_clock_irqtime) { irqtime_account_idle_ticks(ticks); return; } - cputime = jiffies_to_cputime(ticks); - steal = steal_account_process_time(ULONG_MAX); + cputime = ticks * TICK_NSEC; + steal = cputime_to_nsecs(steal_account_process_time(ULONG_MAX)); if (steal >= cputime) return; @@ -787,7 +787,7 @@ void vtime_account_idle(struct task_struct *tsk) { cputime_t delta_cpu = get_vtime_delta(tsk); - account_idle_time(delta_cpu); + account_idle_time(cputime_to_nsecs(delta_cpu)); } void arch_vtime_task_switch(struct task_struct *prev) |