sched_debug_lock 11 kernel/sched/debug.c static DEFINE_SPINLOCK(sched_debug_lock); sched_debug_lock 669 kernel/sched/debug.c spin_lock_irqsave(&sched_debug_lock, flags); sched_debug_lock 675 kernel/sched/debug.c spin_unlock_irqrestore(&sched_debug_lock, flags);