console_sem        86 kernel/printk/printk.c static DEFINE_SEMAPHORE(console_sem);
console_sem       222 kernel/printk/printk.c 	down(&console_sem);\
console_sem       237 kernel/printk/printk.c 	lock_failed = down_trylock(&console_sem);
console_sem       254 kernel/printk/printk.c 	up(&console_sem);