Commit-ID: 447976ef4fd09b1be88b316d1a81553f1aa7cd07 Gitweb: http://git.kernel.org/tip/447976ef4fd09b1be88b316d1a81553f1aa7cd07 Author: Frederic Weisbecker <[email protected]> AuthorDate: Mon, 26 Sep 2016 02:29:21 +0200 Committer: Ingo Molnar <[email protected]> CommitDate: Fri, 30 Sep 2016 11:46:41 +0200
sched/irqtime: Consolidate irqtime flushing code The code performing irqtime nsecs stats flushing to kcpustat is roughly the same for hardirq and softirq. So lets consolidate that common code. Signed-off-by: Frederic Weisbecker <[email protected]> Reviewed-by: Rik van Riel <[email protected]> Cc: Eric Dumazet <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Paolo Bonzini <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Wanpeng Li <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> --- kernel/sched/cputime.c | 26 +++++++++++--------------- 1 file changed, 11 insertions(+), 15 deletions(-) diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c index 1cea2f1..5ebee31 100644 --- a/kernel/sched/cputime.c +++ b/kernel/sched/cputime.c @@ -70,32 +70,28 @@ void irqtime_account_irq(struct task_struct *curr) } EXPORT_SYMBOL_GPL(irqtime_account_irq); -static cputime_t irqtime_account_hi_update(cputime_t maxtime) +static cputime_t irqtime_account_update(u64 irqtime, int idx, cputime_t maxtime) { u64 *cpustat = kcpustat_this_cpu->cpustat; cputime_t irq_cputime; - u64 nsecs; - nsecs = __this_cpu_read(cpu_irqtime.hardirq_time); - irq_cputime = nsecs_to_cputime64(nsecs) - cpustat[CPUTIME_IRQ]; + irq_cputime = nsecs_to_cputime64(irqtime) - cpustat[idx]; irq_cputime = min(irq_cputime, maxtime); - cpustat[CPUTIME_IRQ] += irq_cputime; + cpustat[idx] += irq_cputime; return irq_cputime; } -static cputime_t irqtime_account_si_update(cputime_t maxtime) +static cputime_t irqtime_account_hi_update(cputime_t maxtime) { - u64 *cpustat = kcpustat_this_cpu->cpustat; - cputime_t softirq_cputime; - u64 nsecs; - - nsecs = __this_cpu_read(cpu_irqtime.softirq_time); - softirq_cputime = nsecs_to_cputime64(nsecs) - cpustat[CPUTIME_SOFTIRQ]; - softirq_cputime = min(softirq_cputime, maxtime); - cpustat[CPUTIME_SOFTIRQ] += softirq_cputime; + return irqtime_account_update(__this_cpu_read(cpu_irqtime.hardirq_time), + CPUTIME_IRQ, maxtime); +} - return softirq_cputime; +static cputime_t irqtime_account_si_update(cputime_t maxtime) +{ + return irqtime_account_update(__this_cpu_read(cpu_irqtime.softirq_time), + CPUTIME_SOFTIRQ, maxtime); } #else /* CONFIG_IRQ_TIME_ACCOUNTING */
