preempt_count_ptr 21 include/asm-generic/preempt.h *preempt_count_ptr() = pc; preempt_count_ptr 54 include/asm-generic/preempt.h *preempt_count_ptr() += val; preempt_count_ptr 59 include/asm-generic/preempt.h *preempt_count_ptr() -= val; preempt_count_ptr 69 include/asm-generic/preempt.h return !--*preempt_count_ptr() && tif_need_resched();