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Muchun Song authored
The cpuacct_charge() and cpuacct_account_field() are called with rq->lock held, and this means preemption(and IRQs) are indeed disabled, so it is safe to use __this_cpu_*() to allow for better code-generation. Signed-off-by: Muchun Song <songmuchun@bytedance.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20200507031039.32615-1-songmuchun@bytedance.com
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