102 pfs_add_node(struct pfs_node *parent, struct pfs_node *pn)  in pfs_add_node()  argument
108 	KASSERT(parent != NULL,  in pfs_add_node()
109 	    ("%s(): parent is NULL", __func__));  in pfs_add_node()
111 	    ("%s(): node already has a parent", __func__));  in pfs_add_node()
112 	KASSERT(parent->pn_info != NULL,  in pfs_add_node()
113 	    ("%s(): parent has no pn_info", __func__));  in pfs_add_node()
114 	KASSERT(parent->pn_type == pfstype_dir ||  in pfs_add_node()
115 	    parent->pn_type == pfstype_procdir ||  in pfs_add_node()
116 	    parent->pn_type == pfstype_root,  in pfs_add_node()
117 	    ("%s(): parent is not a directory", __func__));  in pfs_add_node()
122 		for (iter = parent; iter != NULL; iter = iter->pn_parent)  in pfs_add_node()
125 	for (iter = parent->pn_nodes; iter != NULL; iter = iter->pn_next) {  in pfs_add_node()
134 	pn->pn_parent = parent;  in pfs_add_node()
137 	pfs_lock(parent);  in pfs_add_node()
138 	if ((parent->pn_flags & PFS_PROCDEP) != 0)  in pfs_add_node()
140 	if (parent->pn_nodes == NULL) {  in pfs_add_node()
141 		KASSERT(parent->pn_last_node == NULL,  in pfs_add_node()
143 		parent->pn_nodes = pn;  in pfs_add_node()
144 		parent->pn_last_node = pn;  in pfs_add_node()
146 		KASSERT(parent->pn_last_node != NULL,  in pfs_add_node()
148 		KASSERT(parent->pn_last_node->pn_next == NULL,  in pfs_add_node()
150 		parent->pn_last_node->pn_next = pn;  in pfs_add_node()
151 		parent->pn_last_node = pn;  in pfs_add_node()
153 	pfs_unlock(parent);  in pfs_add_node()
162 	struct pfs_node *node, *parent = pn->pn_parent;  in pfs_detach_node()  local
165 	KASSERT(parent != NULL, ("%s(): node has no parent", __func__));  in pfs_detach_node()
166 	KASSERT(parent->pn_info == pn->pn_info,  in pfs_detach_node()
167 	    ("%s(): parent has different pn_info", __func__));  in pfs_detach_node()
169 	pfs_lock(parent);  in pfs_detach_node()
170 	if (pn == parent->pn_last_node) {  in pfs_detach_node()
172 			parent->pn_last_node = NULL;  in pfs_detach_node()
174 			for (node = parent->pn_nodes;  in pfs_detach_node()
177 			parent->pn_last_node = node;  in pfs_detach_node()
180 	iter = &parent->pn_nodes;  in pfs_detach_node()
189 	pfs_unlock(parent);  in pfs_detach_node()
196 pfs_fixup_dir_flags(struct pfs_node *parent, int flags)  in pfs_fixup_dir_flags()  argument
200 	dot = pfs_alloc_node_flags(parent->pn_info, ".", pfstype_this, flags);  in pfs_fixup_dir_flags()
203 	dotdot = pfs_alloc_node_flags(parent->pn_info, "..", pfstype_parent, flags);  in pfs_fixup_dir_flags()
208 	pfs_add_node(parent, dot);  in pfs_fixup_dir_flags()
209 	pfs_add_node(parent, dotdot);  in pfs_fixup_dir_flags()
214 pfs_fixup_dir(struct pfs_node *parent)  in pfs_fixup_dir()  argument
217 	pfs_fixup_dir_flags(parent, 0);  in pfs_fixup_dir()
224 pfs_create_dir(struct pfs_node *parent, const char *name,  in pfs_create_dir()  argument
231 	pn = pfs_alloc_node_flags(parent->pn_info, name,  in pfs_create_dir()
239 	pfs_add_node(parent, pn);  in pfs_create_dir()
252 pfs_create_file(struct pfs_node *parent, const char *name, pfs_fill_t fill,  in pfs_create_file()  argument
258 	pn = pfs_alloc_node_flags(parent->pn_info, name, pfstype_file, flags);  in pfs_create_file()
266 	pfs_add_node(parent, pn);  in pfs_create_file()
275 pfs_create_link(struct pfs_node *parent, const char *name, pfs_fill_t fill,  in pfs_create_link()  argument
281 	pn = pfs_alloc_node_flags(parent->pn_info, name, pfstype_symlink, flags);  in pfs_create_link()
289 	pfs_add_node(parent, pn);  in pfs_create_link()
298 pfs_find_node(struct pfs_node *parent, const char *name)  in pfs_find_node()  argument
302 	pfs_lock(parent);  in pfs_find_node()
303 	for (pn = parent->pn_nodes; pn != NULL; pn = pn->pn_next)  in pfs_find_node()
306 	pfs_unlock(parent);  in pfs_find_node()
312  * has a parent, the parent's mutex must be held.