129 static int iso_mountfs(struct vnode *devvp, struct mount *mp,
185 iso_checkupdate(const struct vnode *devvp, const struct iso_mnt *imp,  in iso_checkupdate()  argument
189 	if (devvp != imp->im_devvp && devvp->v_rdev != imp->im_devvp->v_rdev)  in iso_checkupdate()
256 	struct vnode *devvp;  in cd9660_mount()  local
298 	    NSM_FOLLOW_NOEMULROOT, &devvp);  in cd9660_mount()
302 	if (devvp->v_type != VBLK) {  in cd9660_mount()
303 		vrele(devvp);  in cd9660_mount()
306 	if (bdevsw_lookup(devvp->v_rdev) == NULL) {  in cd9660_mount()
307 		vrele(devvp);  in cd9660_mount()
314 	vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);  in cd9660_mount()
316 	    KAUTH_REQ_SYSTEM_MOUNT_DEVICE, mp, devvp, KAUTH_ARG(VREAD));  in cd9660_mount()
321 		error = VOP_OPEN(devvp, FREAD, FSCRED);  in cd9660_mount()
324 		VOP_UNLOCK(devvp);  in cd9660_mount()
325 		error = iso_mountfs(devvp, mp, l, args);  in cd9660_mount()
326 		vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);  in cd9660_mount()
328 			(void)VOP_CLOSE(devvp, FREAD, NOCRED);  in cd9660_mount()
331 		VOP_UNLOCK(devvp);  in cd9660_mount()
334 		if ((error = iso_checkupdate(devvp, imp, args)) != 0)  in cd9660_mount()
336 		VOP_UNLOCK(devvp);  in cd9660_mount()
337 		vrele(devvp);  in cd9660_mount()
343 	VOP_UNLOCK(devvp);  in cd9660_mount()
344 	vrele(devvp);  in cd9660_mount()
390 iso_mountfs(struct vnode *devvp, struct mount *mp, struct lwp *l,  in iso_mountfs()  argument
395 	dev_t dev = devvp->v_rdev;  in iso_mountfs()
411 	vn_lock(devvp, LK_EXCLUSIVE | LK_RETRY);  in iso_mountfs()
412 	error = vinvalbuf(devvp, V_SAVE, l->l_cred, l, 0, 0);  in iso_mountfs()
413 	VOP_UNLOCK(devvp);  in iso_mountfs()
423 	error = VOP_IOCTL(devvp, DIOCGDINFO, &label, FREAD, FSCRED);  in iso_mountfs()
429 		error = VOP_IOCTL(devvp, CDIOREADMSADDR, &sess, 0, FSCRED);  in iso_mountfs()
438 		if ((error = bread(devvp, (iso_blknum+sess) * btodb(iso_bsize),  in iso_mountfs()
507 	isomp->im_devvp = devvp;  in iso_mountfs()
584 	spec_node_setmountedfs(devvp, mp);  in iso_mountfs()