dk_lock           706 kern/subr_disk.c 	rw_init(&diskp->dk_lock, lockname);
dk_lock           822 kern/subr_disk.c 	error = rw_enter(&dk->dk_lock, RW_WRITE|RW_INTR);
dk_lock           830 kern/subr_disk.c 	rw_exit(&dk->dk_lock);
dk_lock            75 sys/disk.h     	struct rwlock	dk_lock;	/* disk lock */