PREEMPT_MASK 4309 kernel/sched.c DEBUG_LOCKS_WARN_ON((preempt_count() & PREEMPT_MASK) >= PREEMPT_MASK 4310 kernel/sched.c PREEMPT_MASK - 10); PREEMPT_MASK 4328 kernel/sched.c if (DEBUG_LOCKS_WARN_ON((val < PREEMPT_MASK) && PREEMPT_MASK 4329 kernel/sched.c !(preempt_count() & PREEMPT_MASK)))