356 	struct devfs_mount *dmp;  in devfs_populate_vp()  local
361 	dmp = VFSTODEVFS(vp->v_mount);  in devfs_populate_vp()
362 	if (!devfs_populate_needed(dmp)) {  in devfs_populate_vp()
363 		sx_xlock(&dmp->dm_lock);  in devfs_populate_vp()
369 	sx_xlock(&dmp->dm_lock);  in devfs_populate_vp()
370 	DEVFS_DMP_HOLD(dmp);  in devfs_populate_vp()
374 	devfs_populate(dmp);  in devfs_populate_vp()
376 	sx_xunlock(&dmp->dm_lock);  in devfs_populate_vp()
378 	sx_xlock(&dmp->dm_lock);  in devfs_populate_vp()
379 	if (DEVFS_DMP_DROP(dmp)) {  in devfs_populate_vp()
380 		sx_xunlock(&dmp->dm_lock);  in devfs_populate_vp()
381 		devfs_unmount_final(dmp);  in devfs_populate_vp()
386 		sx_xunlock(&dmp->dm_lock);  in devfs_populate_vp()
393 		sx_xunlock(&dmp->dm_lock);  in devfs_populate_vp()
405 	struct devfs_mount *dmp;  in devfs_vptocnp()  local
411 	dmp = VFSTODEVFS(vp->v_mount);  in devfs_vptocnp()
423 	if (vp->v_type == VDIR && dd == dmp->dm_rootdir) {  in devfs_vptocnp()
456 	sx_xunlock(&dmp->dm_lock);  in devfs_vptocnp()
465 devfs_fqpn(char *buf, struct devfs_mount *dmp, struct devfs_dirent *dd,  in devfs_fqpn()  argument
471 	sx_assert(&dmp->dm_lock, SA_LOCKED);  in devfs_fqpn()
482 	while (de != dmp->dm_rootdir) {  in devfs_fqpn()
502 devfs_allocv_drop_refs(int drop_dm_lock, struct devfs_mount *dmp,  in devfs_allocv_drop_refs()  argument
514 	if (DEVFS_DMP_DROP(dmp)) {  in devfs_allocv_drop_refs()
518 		sx_xunlock(&dmp->dm_lock);  in devfs_allocv_drop_refs()
519 		devfs_unmount_final(dmp);  in devfs_allocv_drop_refs()
522 		sx_unlock(&dmp->dm_lock);  in devfs_allocv_drop_refs()
537 	struct devfs_mount *dmp;  in devfs_allocv()  local
541 	dmp = VFSTODEVFS(mp);  in devfs_allocv()
543 		sx_xunlock(&dmp->dm_lock);  in devfs_allocv()
548 	DEVFS_DMP_HOLD(dmp);  in devfs_allocv()
554 		sx_xunlock(&dmp->dm_lock);  in devfs_allocv()
556 		sx_xlock(&dmp->dm_lock);  in devfs_allocv()
557 		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()
629 		(void) devfs_allocv_drop_refs(1, dmp, de);  in devfs_allocv()
632 	if (devfs_allocv_drop_refs(0, dmp, de)) {  in devfs_allocv()
640 	sx_xunlock(&dmp->dm_lock);  in devfs_allocv()
805 	struct devfs_mount *dmp;  in devfs_getattr()  local
814 	dmp = VFSTODEVFS(vp->v_mount);  in devfs_getattr()
815 	sx_xunlock(&dmp->dm_lock);  in devfs_getattr()
1050 	struct devfs_mount *dmp;  in devfs_lookupx()  local
1064 	dmp = VFSTODEVFS(mp);  in devfs_lookupx()
1115 		pname = devfs_fqpn(specname, dmp, dd, cnp);  in devfs_lookupx()
1120 		DEVFS_DMP_HOLD(dmp);  in devfs_lookupx()
1121 		sx_xunlock(&dmp->dm_lock);  in devfs_lookupx()
1126 			sx_xlock(&dmp->dm_lock);  in devfs_lookupx()
1129 			sx_xlock(&dmp->dm_lock);  in devfs_lookupx()
1130 			if (DEVFS_DMP_DROP(dmp)) {  in devfs_lookupx()
1131 				sx_xunlock(&dmp->dm_lock);  in devfs_lookupx()
1132 				devfs_unmount_final(dmp);  in devfs_lookupx()
1134 				sx_xunlock(&dmp->dm_lock);  in devfs_lookupx()
1138 		if (DEVFS_DMP_DROP(dmp)) {  in devfs_lookupx()
1140 			sx_xunlock(&dmp->dm_lock);  in devfs_lookupx()
1141 			devfs_unmount_final(dmp);  in devfs_lookupx()
1151 		dde = &cdev2priv(cdev)->cdp_dirents[dmp->dm_idx];  in devfs_lookupx()
1189 	struct devfs_mount *dmp;  in devfs_lookup()  local
1195 	dmp = VFSTODEVFS(ap->a_dvp->v_mount);  in devfs_lookup()
1199 		sx_xunlock(&dmp->dm_lock);  in devfs_lookup()
1209 	struct devfs_mount *dmp;  in devfs_mknod()  local
1219 	dmp = VFSTODEVFS(dvp->v_mount);  in devfs_mknod()
1226 	sx_xlock(&dmp->dm_lock);  in devfs_mknod()
1246 	sx_xunlock(&dmp->dm_lock);  in devfs_mknod()
1452 	struct devfs_mount *dmp;  in devfs_readdir()  local
1478 	dmp = VFSTODEVFS(ap->a_vp->v_mount);  in devfs_readdir()
1511 	sx_xunlock(&dmp->dm_lock);  in devfs_readdir()
1590 	struct devfs_mount *dmp = VFSTODEVFS(vp->v_mount);  in devfs_remove()  local
1595 	sx_xlock(&dmp->dm_lock);  in devfs_remove()
1610 		devfs_delete(dmp, de, 0);  in devfs_remove()
1611 		sx_xunlock(&dmp->dm_lock);  in devfs_remove()
1617 		sx_xunlock(&dmp->dm_lock);  in devfs_remove()
1704 	struct devfs_mount *dmp;  in devfs_rioctl()  local
1713 	dmp = VFSTODEVFS(vp->v_mount);  in devfs_rioctl()
1714 	sx_xlock(&dmp->dm_lock);  in devfs_rioctl()
1716 	DEVFS_DMP_HOLD(dmp);  in devfs_rioctl()
1717 	devfs_populate(dmp);  in devfs_rioctl()
1718 	if (DEVFS_DMP_DROP(dmp)) {  in devfs_rioctl()
1719 		sx_xunlock(&dmp->dm_lock);  in devfs_rioctl()
1720 		devfs_unmount_final(dmp);  in devfs_rioctl()
1723 	error = devfs_rules_ioctl(dmp, ap->a_command, ap->a_data, ap->a_td);  in devfs_rioctl()
1724 	sx_xunlock(&dmp->dm_lock);  in devfs_rioctl()
1863 	struct devfs_mount *dmp;  in devfs_symlink()  local
1868 	dmp = VFSTODEVFS(ap->a_dvp->v_mount);  in devfs_symlink()
1885 	mac_devfs_create_symlink(ap->a_cnp->cn_cred, dmp->dm_mount, dd, de);  in devfs_symlink()
1891 			devfs_delete(dmp, de, DEVFS_DEL_NORECURSE);  in devfs_symlink()
1892 			sx_xunlock(&dmp->dm_lock);  in devfs_symlink()
1903 	devfs_dir_ref_de(dmp, dd);  in devfs_symlink()
1904 	devfs_rules_apply(dmp, de);  in devfs_symlink()