279 	devnode_t *     dnp = NULL;  in dev_finddir()  local
332 			dnp = dirent_p->de_dnp;  in dev_finddir()
333 			if (dnp->dn_type != DEV_DIR) {  in dev_finddir()
347 			dnp = dirent_p->de_dnp;  in dev_finddir()
352 				dnp, fullpath);  in dev_finddir()
356 		dirnode = dnp; /* continue relative to this directory */  in dev_finddir()
373     devnode_t * dnp, devdirent_t * *dirent_pp)  in dev_add_name()  argument
401 	if (dirnode && (dnp->dn_dvm == NULL)) {  in dev_add_name()
402 		dnp->dn_dvm = dirnode->dn_dvm;  in dev_add_name()
411 	dirent_p->de_dnp = dnp;  in dev_add_name()
412 	dnp->dn_links++;  /* implicit from our own name-node */  in dev_add_name()
418 	if (dnp->dn_linklist) {  in dev_add_name()
419 		dirent_p->de_nextlink = dnp->dn_linklist;  in dev_add_name()
427 	dnp->dn_linklist = dirent_p;  in dev_add_name()
434 	if (dnp->dn_type == DEV_DIR) {  in dev_add_name()
435 		dnp->dn_typeinfo.Dir.myname = dirent_p;  in dev_add_name()
442 		if (dnp->dn_typeinfo.Dir.parent) {  in dev_add_name()
443 			dnp->dn_typeinfo.Dir.parent->dn_links--;  in dev_add_name()
446 			dnp->dn_typeinfo.Dir.parent = dirnode;  in dev_add_name()
448 			dnp->dn_typeinfo.Dir.parent = dnp;  in dev_add_name()
450 		dnp->dn_typeinfo.Dir.parent->dn_links++; /* account for the new '..' */  in dev_add_name()
503 	devnode_t *     dnp = NULL;  in dev_add_node()  local
512 		dnp = proto->dn_nextsibling;  in dev_add_node()
513 		while (dnp != proto) {  in dev_add_node()
514 			if (dnp->dn_dvm == dvm) {  in dev_add_node()
515 				*dn_pp = dnp;  in dev_add_node()
518 			dnp = dnp->dn_nextsibling;  in dev_add_node()
534 	dnp = kalloc_type(devnode_t, Z_WAITOK | Z_ZERO | Z_NOFAIL);  in dev_add_node()
541 		bcopy(proto, dnp, sizeof(devnode_t));  in dev_add_node()
542 		dnp->dn_links = 0;  in dev_add_node()
543 		dnp->dn_linklist = NULL;  in dev_add_node()
544 		dnp->dn_vn = NULL;  in dev_add_node()
545 		dnp->dn_len = 0;  in dev_add_node()
547 		dnp->dn_prevsiblingp = proto->dn_prevsiblingp;  in dev_add_node()
548 		*(dnp->dn_prevsiblingp) = dnp;  in dev_add_node()
549 		dnp->dn_nextsibling = proto;  in dev_add_node()
550 		proto->dn_prevsiblingp = &(dnp->dn_nextsibling);  in dev_add_node()
552 		mac_devfs_label_init(dnp);  in dev_add_node()
553 		mac_devfs_label_copy(mac_devfs_label(proto), mac_devfs_label(dnp));  in dev_add_node()
562 		dnp->dn_type = entrytype;  in dev_add_node()
563 		dnp->dn_nextsibling = dnp;  in dev_add_node()
564 		dnp->dn_prevsiblingp = &(dnp->dn_nextsibling);  in dev_add_node()
565 		dnp->dn_atime.tv_sec = tv.tv_sec;  in dev_add_node()
566 		dnp->dn_mtime.tv_sec = tv.tv_sec;  in dev_add_node()
567 		dnp->dn_ctime.tv_sec = tv.tv_sec;  in dev_add_node()
569 		mac_devfs_label_init(dnp);  in dev_add_node()
572 	dnp->dn_dvm = dvm;  in dev_add_node()
575 	os_ref_init_raw(&dnp->dn_refcount, &devfs_refgrp);  in dev_add_node()
576 	dnp->dn_ino = devfs_unique_fileno;  in dev_add_node()
588 		dnp->dn_typeinfo.Dir.dirlast = &(dnp->dn_typeinfo.Dir.dirlist);  in dev_add_node()
589 		dnp->dn_typeinfo.Dir.dirlist = (devdirent_t *)0;  in dev_add_node()
590 		dnp->dn_typeinfo.Dir.entrycount = 0;  in dev_add_node()
592 		dnp->dn_typeinfo.Dir.parent = NULL;  in dev_add_node()
593 		dnp->dn_links++; /* for .*/  in dev_add_node()
594 		dnp->dn_typeinfo.Dir.myname = NULL;  in dev_add_node()
599 		dnp->dn_ops = &devfs_vnodeop_p;  in dev_add_node()
600 		dnp->dn_mode |= 0555;   /* default perms */  in dev_add_node()
611 		dnp->dn_typeinfo.Slnk.name = kalloc_data(typeinfo->Slnk.namelen + 1, Z_WAITOK);  in dev_add_node()
612 		if (!dnp->dn_typeinfo.Slnk.name) {  in dev_add_node()
616 		strlcpy(dnp->dn_typeinfo.Slnk.name, typeinfo->Slnk.name,  in dev_add_node()
618 		dnp->dn_typeinfo.Slnk.namelen = typeinfo->Slnk.namelen;  in dev_add_node()
619 		DEVFS_INCR_STRINGSPACE(dnp->dn_typeinfo.Slnk.namelen + 1);  in dev_add_node()
620 		dnp->dn_ops = &devfs_vnodeop_p;  in dev_add_node()
621 		dnp->dn_mode |= 0555;   /* default perms */  in dev_add_node()
629 		dnp->dn_ops = &devfs_spec_vnodeop_p;  in dev_add_node()
630 		dnp->dn_typeinfo.dev = typeinfo->dev;  in dev_add_node()
636 		dnp->dn_ops = &devfs_devfd_vnodeop_p;  in dev_add_node()
637 		dnp->dn_mode |= 0555;   /* default perms */  in dev_add_node()
646 		kfree_type(devnode_t, dnp);  in dev_add_node()
648 		*dn_pp = dnp;  in dev_add_node()
660 devnode_free(devnode_t * dnp)  in devnode_free()  argument
663 	mac_devfs_label_destroy(dnp);  in devnode_free()
665 	if (dnp->dn_type == DEV_SLNK) {  in devnode_free()
666 		DEVFS_DECR_STRINGSPACE(dnp->dn_typeinfo.Slnk.namelen + 1);  in devnode_free()
667 		kfree_data(dnp->dn_typeinfo.Slnk.name, dnp->dn_typeinfo.Slnk.namelen + 1);  in devnode_free()
670 	kfree_type(devnode_t, dnp);  in devnode_free()
678 devfs_dn_free(devnode_t * dnp)  in devfs_dn_free()  argument
680 	if (--dnp->dn_links <= 0) { /* can be -1 for initial free, on error */  in devfs_dn_free()
682 		if (dnp->dn_nextsibling != dnp) {  in devfs_dn_free()
683 			devnode_t * *   prevp = dnp->dn_prevsiblingp;  in devfs_dn_free()
684 			*prevp = dnp->dn_nextsibling;  in devfs_dn_free()
685 			dnp->dn_nextsibling->dn_prevsiblingp = prevp;  in devfs_dn_free()
689 		os_ref_count_t rc = os_ref_get_count_raw(&dnp->dn_refcount);  in devfs_dn_free()
692 			(void) os_ref_release_locked_raw(&dnp->dn_refcount, &devfs_refgrp);  in devfs_dn_free()
693 			devnode_free(dnp);  in devfs_dn_free()
695 			dnp->dn_lflags |= DN_DELETE;  in devfs_dn_free()
724 	devnode_t *     dnp = child->de_dnp;  in devfs_propogate()  local
730 	events = (dnp->dn_type == DEV_DIR ? VNODE_EVENT_DIR_CREATED : VNODE_EVENT_FILE_CREATED);  in devfs_propogate()
747 		    NULL, dnp, adnp->dn_dvm,  in devfs_propogate()
771 remove_notify_count(devnode_t *dnp)  in remove_notify_count()  argument
781 	notify_count += dnp->dn_links;  in remove_notify_count()
782 	for (dnp2 = dnp->dn_nextsibling; dnp2 != dnp; dnp2 = dnp2->dn_nextsibling) {  in remove_notify_count()
802 	devnode_t * dnp = ((devdirent_t *)dirent_p)->de_dnp;  in devfs_remove()  local
818 	log_count = remove_notify_count(dnp);  in devfs_remove()
830 		new_count = remove_notify_count(dnp);  in devfs_remove()
846 		devfs_record_event(&event_log, dnp, VNODE_EVENT_DELETE);  in devfs_remove()
850 	while ((dnp2 = dnp->dn_nextsibling) != dnp) {  in devfs_remove()
854 		dnp->dn_nextsibling = dnp2->dn_nextsibling;  in devfs_remove()
855 		dnp->dn_nextsibling->dn_prevsiblingp = &(dnp->dn_nextsibling);  in devfs_remove()
881 	if (dnp->dn_linklist) {  in devfs_remove()
883 			lastlink = (1 == dnp->dn_links);  in devfs_remove()
886 				devfs_record_event(&event_log, dnp->dn_linklist->de_parent, VNODE_EVENT_FILE_REMOVED);  in devfs_remove()
888 			dev_free_name(dnp->dn_linklist);  in devfs_remove()
969 	devnode_t *     dnp = back->de_dnp;  in dev_dup_entry()  local
970 	int type = dnp->dn_type;  in dev_dup_entry()
976 	error = dev_add_entry(back->de_name, parent, type, NULL, dnp,  in dev_dup_entry()
1027 	devnode_t *     dnp = dirent_p->de_dnp;  in dev_free_name()  local
1029 	if (dnp) {  in dev_free_name()
1030 		if (dnp->dn_type == DEV_DIR) {  in dev_free_name()
1033 			if (dnp->dn_typeinfo.Dir.dirlist) {  in dev_free_name()
1036 			p = dnp->dn_typeinfo.Dir.parent;  in dev_free_name()
1037 			devfs_dn_free(dnp);     /* account for '.' */  in dev_free_name()
1047 			dnp->dn_linklist = NULL;  in dev_free_name()
1049 			if (dnp->dn_linklist == dirent_p) {  in dev_free_name()
1050 				dnp->dn_linklist = dirent_p->de_nextlink;  in dev_free_name()
1053 		devfs_dn_free(dnp);  in dev_free_name()
1092 	devnode_t *     dnp = dirent_p->de_dnp;  in dev_free_hier()  local
1094 	if (dnp) {  in dev_free_hier()
1095 		if (dnp->dn_type == DEV_DIR) {  in dev_free_hier()
1096 			while (dnp->dn_typeinfo.Dir.dirlist) {  in dev_free_hier()
1097 				dev_free_hier(dnp->dn_typeinfo.Dir.dirlist);  in dev_free_hier()
1098 				dev_free_name(dnp->dn_typeinfo.Dir.dirlist);  in dev_free_hier()
1116 devfs_dntovn(devnode_t * dnp, struct vnode **vn_pp, __unused struct proc * p)  in devfs_dntovn()  argument
1133 	if (dnp->dn_lflags & DN_DELETE) {  in devfs_dntovn()
1137 	devfs_ref_node(dnp);  in devfs_dntovn()
1141 	vn_p = dnp->dn_vn;  in devfs_dntovn()
1165 		if (dnp->dn_lflags & DN_DELETE) {  in devfs_dntovn()
1222 	if (dnp->dn_lflags & DN_CREATE) {  in devfs_dntovn()
1223 		dnp->dn_lflags |= DN_CREATEWAIT;  in devfs_dntovn()
1224 		msleep(&dnp->dn_lflags, &devfs_mutex, PRIBIO, 0, 0);  in devfs_dntovn()
1228 	dnp->dn_lflags |= DN_CREATE;  in devfs_dntovn()
1230 	switch (dnp->dn_type) {  in devfs_dntovn()
1235 		if (dnp->dn_typeinfo.Dir.parent == dnp) {  in devfs_dntovn()
1242 		vtype = (dnp->dn_type == DEV_BDEV) ? VBLK : VCHR;  in devfs_dntovn()
1250 	vfsp.vnfs_mp = dnp->dn_dvm->mount;  in devfs_dntovn()
1254 	vfsp.vnfs_fsnode = dnp;  in devfs_dntovn()
1256 	vfsp.vnfs_vops = *(dnp->dn_ops);  in devfs_dntovn()
1264 		if (dnp->dn_clone != NULL) {  in devfs_dntovn()
1265 			int     n_major = major(dnp->dn_typeinfo.dev);  in devfs_dntovn()
1267 			n_minor = (*dnp->dn_clone)(dnp->dn_typeinfo.dev, DEVFS_CLONE_ALLOC);  in devfs_dntovn()
1275 			vfsp.vnfs_rdev = dnp->dn_typeinfo.dev;  in devfs_dntovn()
1301 		if ((dnp->dn_clone != NULL) && (dnp->dn_vn != NULLVP)) {  in devfs_dntovn()
1313 		devfs_ref_node(dnp);  in devfs_dntovn()
1319 		if (dnp->dn_clone == NULL) {  in devfs_dntovn()
1320 			dnp->dn_vn = vn_p;  in devfs_dntovn()
1332 		(void)(*dnp->dn_clone)(dnp->dn_typeinfo.dev, DEVFS_CLONE_FREE);  in devfs_dntovn()
1335 	dnp->dn_lflags &= ~DN_CREATE;  in devfs_dntovn()
1336 	if (dnp->dn_lflags & DN_CREATEWAIT) {  in devfs_dntovn()
1337 		dnp->dn_lflags &= ~DN_CREATEWAIT;  in devfs_dntovn()
1338 		wakeup(&dnp->dn_lflags);  in devfs_dntovn()
1347 	devfs_rele_node(dnp);  in devfs_dntovn()
1357 devfs_ref_node(devnode_t *dnp)  in devfs_ref_node()  argument
1359 	os_ref_retain_locked_raw(&dnp->dn_refcount, &devfs_refgrp);  in devfs_ref_node()
1367 devfs_rele_node(devnode_t *dnp)  in devfs_rele_node()  argument
1369 	os_ref_count_t rc = os_ref_release_locked_raw(&dnp->dn_refcount, &devfs_refgrp);  in devfs_rele_node()
1372 	} else if ((rc == 1) && (dnp->dn_lflags & DN_DELETE)) {  in devfs_rele_node()
1374 		(void) os_ref_release_locked_raw(&dnp->dn_refcount, &devfs_refgrp);  in devfs_rele_node()
1375 		devnode_free(dnp);  in devfs_rele_node()
1389 	devnode_t *     dnp;  in dev_add_entry()  local
1392 	if ((error = dev_add_node(type, typeinfo, proto, &dnp,  in dev_add_entry()
1398 	if ((error = dev_add_name(name, parent, NULL, dnp, nm_pp)) != 0) {  in dev_add_entry()
1399 		devfs_dn_free(dnp); /* 1->0 for dir, 0->(-1) for other */  in dev_add_entry()
1421 devfs_record_event(devfs_event_log_t delp, devnode_t *dnp, uint32_t events)  in devfs_record_event()  argument
1428 	if (dnp->dn_vn != NULLVP && vnode_ismonitored(dnp->dn_vn)) {  in devfs_record_event()
1430 		dvep->dve_vp = dnp->dn_vn;  in devfs_record_event()
1431 		dvep->dve_vid = vnode_vid(dnp->dn_vn);  in devfs_record_event()
1561 	devnode_t * dnp;  in devfs_make_node_internal()  local
1628 	if (dev_finddir(path, NULL, DEVFS_CREATE, &dnp, &event_log) == 0) {  in devfs_make_node_internal()
1630 		if (dev_add_entry(name, dnp, type, &typeinfo, NULL, NULL, &new_dev) == 0) {  in devfs_make_node_internal()
1638 			devfs_propogate(dnp->dn_typeinfo.Dir.myname, new_dev, &event_log);  in devfs_make_node_internal()