preempt_count_sub 54 include/linux/hardirq.h preempt_count_sub(HARDIRQ_OFFSET); \ preempt_count_sub 77 include/linux/hardirq.h preempt_count_sub(NMI_OFFSET + HARDIRQ_OFFSET); \ preempt_count_sub 22 include/linux/preempt.h extern void preempt_count_sub(int val); preempt_count_sub 23 include/linux/preempt.h #define preempt_count_dec_and_test() ({ preempt_count_sub(1); should_resched(); }) preempt_count_sub 34 include/linux/preempt.h #define preempt_count_dec() preempt_count_sub(1)