fs/pseudofs/pseudofs.c

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