Commit-ID: f9094a65755df86ec931f47b781f68ea3095cb56 Gitweb: http://git.kernel.org/tip/f9094a65755df86ec931f47b781f68ea3095cb56 Author: Frederic Weisbecker <[email protected]> AuthorDate: Mon, 26 Sep 2016 02:29:17 +0200 Committer: Ingo Molnar <[email protected]> CommitDate: Fri, 30 Sep 2016 11:46:38 +0200
sched/irqtime: No need for preempt-safe accessors We can safely use the preempt-unsafe accessors for irqtime when we flush its counters to kcpustat as IRQs are disabled at this time. 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 | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c index b93c72d..f111076 100644 --- a/kernel/sched/cputime.c +++ b/kernel/sched/cputime.c @@ -82,7 +82,7 @@ static cputime_t irqtime_account_hi_update(cputime_t maxtime) cputime_t irq_cputime; local_irq_save(flags); - irq_cputime = nsecs_to_cputime64(this_cpu_read(cpu_hardirq_time)) - + irq_cputime = nsecs_to_cputime64(__this_cpu_read(cpu_hardirq_time)) - cpustat[CPUTIME_IRQ]; irq_cputime = min(irq_cputime, maxtime); cpustat[CPUTIME_IRQ] += irq_cputime; @@ -97,7 +97,7 @@ static cputime_t irqtime_account_si_update(cputime_t maxtime) cputime_t softirq_cputime; local_irq_save(flags); - softirq_cputime = nsecs_to_cputime64(this_cpu_read(cpu_softirq_time)) - + softirq_cputime = nsecs_to_cputime64(__this_cpu_read(cpu_softirq_time)) - cpustat[CPUTIME_SOFTIRQ]; softirq_cputime = min(softirq_cputime, maxtime); cpustat[CPUTIME_SOFTIRQ] += softirq_cputime;
