Messages in this thread Patch in this message | | | From | Frederic Weisbecker <> | Subject | [RFC PATCH 28/30] cputime: Push time to account_idle_time() in nanosecs | Date | Fri, 28 Nov 2014 19:23:58 +0100 |
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Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> --- arch/ia64/kernel/time.c | 2 +- arch/powerpc/kernel/time.c | 2 +- arch/s390/kernel/idle.c | 2 +- include/linux/kernel_stat.h | 2 +- kernel/sched/cputime.c | 10 +++++----- 5 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c index 0518131..2f9e8f0 100644 --- a/arch/ia64/kernel/time.c +++ b/arch/ia64/kernel/time.c @@ -143,7 +143,7 @@ EXPORT_SYMBOL_GPL(vtime_account_system); void vtime_account_idle(struct task_struct *tsk) { - account_idle_time(vtime_delta(tsk)); + account_idle_time(cputime_to_nsecs(vtime_delta(tsk))); } #endif /* CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */ diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index e44558c..cdd78a2 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -355,7 +355,7 @@ void vtime_account_idle(struct task_struct *tsk) u64 delta, sys_scaled, stolen; delta = vtime_delta(tsk, &sys_scaled, &stolen); - account_idle_time(delta + stolen); + account_idle_time(cputime_to_nsecs(delta + stolen)); } /* diff --git a/arch/s390/kernel/idle.c b/arch/s390/kernel/idle.c index 9b75577..d2130ed 100644 --- a/arch/s390/kernel/idle.c +++ b/arch/s390/kernel/idle.c @@ -41,7 +41,7 @@ void __kprobes enabled_wait(void) idle->clock_idle_enter = idle->clock_idle_exit = 0ULL; idle->idle_time += idle_time; idle->idle_count++; - account_idle_time(idle_time); + account_idle_time(cputime_to_nsecs(idle_time)); write_seqcount_end(&idle->seqcount); } diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h index b164be9..2b26786 100644 --- a/include/linux/kernel_stat.h +++ b/include/linux/kernel_stat.h @@ -87,7 +87,7 @@ extern unsigned long long task_delta_exec(struct task_struct *); extern void account_user_time(struct task_struct *, u64, u64); extern void account_system_time(struct task_struct *, int, cputime_t, cputime_t); extern void account_steal_time(u64); -extern void account_idle_time(cputime_t); +extern void account_idle_time(u64); #ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE static inline void account_process_tick(struct task_struct *tsk, int user) diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c index ee8a9bf..7d818bb 100644 --- a/kernel/sched/cputime.c +++ b/kernel/sched/cputime.c @@ -234,15 +234,15 @@ 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; } static __always_inline bool steal_account_process_tick(void) @@ -348,7 +348,7 @@ static void irqtime_account_process_tick(struct task_struct *p, int user_tick, } else if (user_tick) { account_user_time(p, nsec, nsec_scaled); } else if (p == rq->idle) { - account_idle_time(cputime); + account_idle_time(nsec); } else if (p->flags & PF_VCPU) { /* System time or guest time */ account_guest_time(p, cputime, scaled); } else { @@ -496,7 +496,7 @@ void account_idle_ticks(unsigned long ticks) return; } - account_idle_time(jiffies_to_cputime(ticks)); + account_idle_time(jiffies_to_nsecs(ticks)); } /* -- 2.1.3
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