341 	struct devfs_mount *dmp;  in devfs_populate_vp()  local
346 	dmp = VFSTODEVFS(vp->v_mount);  in devfs_populate_vp()
347 	if (!devfs_populate_needed(dmp)) {  in devfs_populate_vp()
348 		sx_xlock(&dmp->dm_lock);  in devfs_populate_vp()
354 	sx_xlock(&dmp->dm_lock);  in devfs_populate_vp()
355 	DEVFS_DMP_HOLD(dmp);  in devfs_populate_vp()
359 	devfs_populate(dmp);  in devfs_populate_vp()
361 	sx_xunlock(&dmp->dm_lock);  in devfs_populate_vp()
363 	sx_xlock(&dmp->dm_lock);  in devfs_populate_vp()
364 	if (DEVFS_DMP_DROP(dmp)) {  in devfs_populate_vp()
365 		sx_xunlock(&dmp->dm_lock);  in devfs_populate_vp()
366 		devfs_unmount_final(dmp);  in devfs_populate_vp()
371 		sx_xunlock(&dmp->dm_lock);  in devfs_populate_vp()
378 		sx_xunlock(&dmp->dm_lock);  in devfs_populate_vp()
390 	struct devfs_mount *dmp;  in devfs_vptocnp()  local
396 	dmp = VFSTODEVFS(vp->v_mount);  in devfs_vptocnp()
408 	if (vp->v_type == VDIR && dd == dmp->dm_rootdir) {  in devfs_vptocnp()
441 	sx_xunlock(&dmp->dm_lock);  in devfs_vptocnp()
450 devfs_fqpn(char *buf, struct devfs_mount *dmp, struct devfs_dirent *dd,  in devfs_fqpn()  argument
456 	sx_assert(&dmp->dm_lock, SA_LOCKED);  in devfs_fqpn()
467 	while (de != dmp->dm_rootdir) {  in devfs_fqpn()
487 devfs_allocv_drop_refs(int drop_dm_lock, struct devfs_mount *dmp,  in devfs_allocv_drop_refs()  argument
499 	if (DEVFS_DMP_DROP(dmp)) {  in devfs_allocv_drop_refs()
503 		sx_xunlock(&dmp->dm_lock);  in devfs_allocv_drop_refs()
504 		devfs_unmount_final(dmp);  in devfs_allocv_drop_refs()
507 		sx_unlock(&dmp->dm_lock);  in devfs_allocv_drop_refs()
536 	struct devfs_mount *dmp;  in devfs_allocv()  local
540 	dmp = VFSTODEVFS(mp);  in devfs_allocv()
542 		sx_xunlock(&dmp->dm_lock);  in devfs_allocv()
547 	DEVFS_DMP_HOLD(dmp);  in devfs_allocv()
553 		sx_xunlock(&dmp->dm_lock);  in devfs_allocv()
555 		sx_xlock(&dmp->dm_lock);  in devfs_allocv()
556 		if (devfs_allocv_drop_refs(0, dmp, de)) {  in devfs_allocv()
570 		sx_xunlock(&dmp->dm_lock);  in devfs_allocv()
577 			devfs_allocv_drop_refs(1, dmp, de);  in devfs_allocv()
586 		devfs_allocv_drop_refs(1, dmp, de);  in devfs_allocv()
623 		(void) devfs_allocv_drop_refs(1, dmp, de);  in devfs_allocv()
626 	if (devfs_allocv_drop_refs(0, dmp, de)) {  in devfs_allocv()
633 	sx_xunlock(&dmp->dm_lock);  in devfs_allocv()
797 	struct devfs_mount *dmp;  in devfs_getattr()  local
806 	dmp = VFSTODEVFS(vp->v_mount);  in devfs_getattr()
807 	sx_xunlock(&dmp->dm_lock);  in devfs_getattr()
1042 	struct devfs_mount *dmp;  in devfs_lookupx()  local
1056 	dmp = VFSTODEVFS(mp);  in devfs_lookupx()
1107 		pname = devfs_fqpn(specname, dmp, dd, cnp);  in devfs_lookupx()
1112 		DEVFS_DMP_HOLD(dmp);  in devfs_lookupx()
1113 		sx_xunlock(&dmp->dm_lock);  in devfs_lookupx()
1120 			sx_xlock(&dmp->dm_lock);  in devfs_lookupx()
1123 			sx_xlock(&dmp->dm_lock);  in devfs_lookupx()
1124 			if (DEVFS_DMP_DROP(dmp)) {  in devfs_lookupx()
1125 				sx_xunlock(&dmp->dm_lock);  in devfs_lookupx()
1126 				devfs_unmount_final(dmp);  in devfs_lookupx()
1128 				sx_xunlock(&dmp->dm_lock);  in devfs_lookupx()
1132 		if (DEVFS_DMP_DROP(dmp)) {  in devfs_lookupx()
1134 			sx_xunlock(&dmp->dm_lock);  in devfs_lookupx()
1135 			devfs_unmount_final(dmp);  in devfs_lookupx()
1145 		dde = &cdev2priv(cdev)->cdp_dirents[dmp->dm_idx];  in devfs_lookupx()
1184 	struct devfs_mount *dmp;  in devfs_lookup()  local
1190 	dmp = VFSTODEVFS(ap->a_dvp->v_mount);  in devfs_lookup()
1194 		sx_xunlock(&dmp->dm_lock);  in devfs_lookup()
1204 	struct devfs_mount *dmp;  in devfs_mknod()  local
1214 	dmp = VFSTODEVFS(dvp->v_mount);  in devfs_mknod()
1221 	sx_xlock(&dmp->dm_lock);  in devfs_mknod()
1241 	sx_xunlock(&dmp->dm_lock);  in devfs_mknod()
1447 	struct devfs_mount *dmp;  in devfs_readdir()  local
1473 	dmp = VFSTODEVFS(ap->a_vp->v_mount);  in devfs_readdir()
1506 	sx_xunlock(&dmp->dm_lock);  in devfs_readdir()
1585 	struct devfs_mount *dmp = VFSTODEVFS(vp->v_mount);  in devfs_remove()  local
1590 	sx_xlock(&dmp->dm_lock);  in devfs_remove()
1605 		devfs_delete(dmp, de, 0);  in devfs_remove()
1606 		sx_xunlock(&dmp->dm_lock);  in devfs_remove()
1612 		sx_xunlock(&dmp->dm_lock);  in devfs_remove()
1695 	struct devfs_mount *dmp;  in devfs_rioctl()  local
1704 	dmp = VFSTODEVFS(vp->v_mount);  in devfs_rioctl()
1705 	sx_xlock(&dmp->dm_lock);  in devfs_rioctl()
1707 	DEVFS_DMP_HOLD(dmp);  in devfs_rioctl()
1708 	devfs_populate(dmp);  in devfs_rioctl()
1709 	if (DEVFS_DMP_DROP(dmp)) {  in devfs_rioctl()
1710 		sx_xunlock(&dmp->dm_lock);  in devfs_rioctl()
1711 		devfs_unmount_final(dmp);  in devfs_rioctl()
1714 	error = devfs_rules_ioctl(dmp, ap->a_command, ap->a_data, ap->a_td);  in devfs_rioctl()
1715 	sx_xunlock(&dmp->dm_lock);  in devfs_rioctl()
1854 	struct devfs_mount *dmp;  in devfs_symlink()  local
1859 	dmp = VFSTODEVFS(ap->a_dvp->v_mount);  in devfs_symlink()
1876 	mac_devfs_create_symlink(ap->a_cnp->cn_cred, dmp->dm_mount, dd, de);  in devfs_symlink()
1882 			devfs_delete(dmp, de, DEVFS_DEL_NORECURSE);  in devfs_symlink()
1883 			sx_xunlock(&dmp->dm_lock);  in devfs_symlink()
1894 	devfs_dir_ref_de(dmp, dd);  in devfs_symlink()
1895 	devfs_rules_apply(dmp, de);  in devfs_symlink()