56 	struct configfs_dirent *sd = dentry->d_fsdata;  in configfs_d_iput()  local
58 	if (sd) {  in configfs_d_iput()
69 		if (atomic_read(&sd->s_count) <= 2)  in configfs_d_iput()
70 			sd->s_dentry = NULL;  in configfs_d_iput()
73 		configfs_put(sd);  in configfs_d_iput()
104 static void configfs_init_dirent_depth(struct configfs_dirent *sd)  in configfs_init_dirent_depth()  argument
106 	sd->s_depth = -1;  in configfs_init_dirent_depth()
110 					  struct configfs_dirent *sd)  in configfs_set_dir_dirent_depth()  argument
115 		sd->s_depth = parent_depth + 1;  in configfs_set_dir_dirent_depth()
119 configfs_adjust_dir_dirent_depth_before_populate(struct configfs_dirent *sd)  in configfs_adjust_dir_dirent_depth_before_populate()  argument
131 	if (sd->s_depth == -1)  in configfs_adjust_dir_dirent_depth_before_populate()
136 		sd->s_depth = 0;  in configfs_adjust_dir_dirent_depth_before_populate()
140 configfs_adjust_dir_dirent_depth_after_populate(struct configfs_dirent *sd)  in configfs_adjust_dir_dirent_depth_after_populate()  argument
143 	sd->s_depth = -1;  in configfs_adjust_dir_dirent_depth_after_populate()
148 static void configfs_init_dirent_depth(struct configfs_dirent *sd)  in configfs_init_dirent_depth()  argument
153 					  struct configfs_dirent *sd)  in configfs_set_dir_dirent_depth()  argument
158 configfs_adjust_dir_dirent_depth_before_populate(struct configfs_dirent *sd)  in configfs_adjust_dir_dirent_depth_before_populate()  argument
163 configfs_adjust_dir_dirent_depth_after_populate(struct configfs_dirent *sd)  in configfs_adjust_dir_dirent_depth_after_populate()  argument
175 	struct configfs_dirent * sd;  in configfs_new_dirent()  local
177 	sd = kmem_cache_zalloc(configfs_dir_cachep, GFP_KERNEL);  in configfs_new_dirent()
178 	if (!sd)  in configfs_new_dirent()
181 	atomic_set(&sd->s_count, 1);  in configfs_new_dirent()
182 	INIT_LIST_HEAD(&sd->s_links);  in configfs_new_dirent()
183 	INIT_LIST_HEAD(&sd->s_children);  in configfs_new_dirent()
184 	sd->s_element = element;  in configfs_new_dirent()
185 	sd->s_type = type;  in configfs_new_dirent()
186 	configfs_init_dirent_depth(sd);  in configfs_new_dirent()
190 		kmem_cache_free(configfs_dir_cachep, sd);  in configfs_new_dirent()
193 	list_add(&sd->s_sibling, &parent_sd->s_children);  in configfs_new_dirent()
196 	return sd;  in configfs_new_dirent()
209 	struct configfs_dirent * sd;  in configfs_dirent_exists()  local
211 	list_for_each_entry(sd, &parent_sd->s_children, s_sibling) {  in configfs_dirent_exists()
212 		if (sd->s_element) {  in configfs_dirent_exists()
213 			const unsigned char *existing = configfs_get_name(sd);  in configfs_dirent_exists()
229 	struct configfs_dirent * sd;  in configfs_make_dirent()  local
231 	sd = configfs_new_dirent(parent_sd, element, type);  in configfs_make_dirent()
232 	if (IS_ERR(sd))  in configfs_make_dirent()
233 		return PTR_ERR(sd);  in configfs_make_dirent()
235 	sd->s_mode = mode;  in configfs_make_dirent()
236 	sd->s_dentry = dentry;  in configfs_make_dirent()
238 		dentry->d_fsdata = configfs_get(sd);  in configfs_make_dirent()
295 		struct configfs_dirent *sd = dentry->d_fsdata;  in configfs_create_dir()  local
296 		if (sd) {  in configfs_create_dir()
298 			list_del_init(&sd->s_sibling);  in configfs_create_dir()
300 			configfs_put(sd);  in configfs_create_dir()
313 static void configfs_dir_set_ready(struct configfs_dirent *sd)  in configfs_dir_set_ready()  argument
317 	sd->s_type &= ~CONFIGFS_USET_CREATING;  in configfs_dir_set_ready()
318 	list_for_each_entry(child_sd, &sd->s_children, s_sibling)  in configfs_dir_set_ready()
333 int configfs_dirent_is_ready(struct configfs_dirent *sd)  in configfs_dirent_is_ready()  argument
338 	ret = !(sd->s_type & CONFIGFS_USET_CREATING);  in configfs_dirent_is_ready()
356 			struct configfs_dirent *sd = dentry->d_fsdata;  in configfs_create_link()  local
357 			if (sd) {  in configfs_create_link()
359 				list_del_init(&sd->s_sibling);  in configfs_create_link()
361 				configfs_put(sd);  in configfs_create_link()
371 	struct configfs_dirent * sd;  in remove_dir()  local
373 	sd = d->d_fsdata;  in remove_dir()
375 	list_del_init(&sd->s_sibling);  in remove_dir()
377 	configfs_put(sd);  in remove_dir()
415 static int configfs_attach_attr(struct configfs_dirent * sd, struct dentry * dentry)  in configfs_attach_attr()  argument
417 	struct configfs_attribute * attr = sd->s_element;  in configfs_attach_attr()
421 	dentry->d_fsdata = configfs_get(sd);  in configfs_attach_attr()
422 	sd->s_dentry = dentry;  in configfs_attach_attr()
428 		configfs_put(sd);  in configfs_attach_attr()
442 	struct configfs_dirent * sd;  in configfs_lookup()  local
458 	list_for_each_entry(sd, &parent_sd->s_children, s_sibling) {  in configfs_lookup()
459 		if (sd->s_type & CONFIGFS_NOT_PINNED) {  in configfs_lookup()
460 			const unsigned char * name = configfs_get_name(sd);  in configfs_lookup()
466 			err = configfs_attach_attr(sd, dentry);  in configfs_lookup()
497 	struct configfs_dirent *sd;  in configfs_detach_prep()  local
508 	list_for_each_entry(sd, &parent_sd->s_children, s_sibling) {  in configfs_detach_prep()
509 		if (!sd->s_element ||  in configfs_detach_prep()
510 		    (sd->s_type & CONFIGFS_NOT_PINNED))  in configfs_detach_prep()
512 		if (sd->s_type & CONFIGFS_USET_DEFAULT) {  in configfs_detach_prep()
514 			if (sd->s_type & CONFIGFS_USET_IN_MKDIR) {  in configfs_detach_prep()
516 					*wait_mutex = &d_inode(sd->s_dentry)->i_mutex;  in configfs_detach_prep()
524 			ret = configfs_detach_prep(sd->s_dentry, wait_mutex);  in configfs_detach_prep()
544 	struct configfs_dirent *sd;  in configfs_detach_rollback()  local
548 	list_for_each_entry(sd, &parent_sd->s_children, s_sibling)  in configfs_detach_rollback()
549 		if (sd->s_type & CONFIGFS_USET_DEFAULT)  in configfs_detach_rollback()
550 			configfs_detach_rollback(sd->s_dentry);  in configfs_detach_rollback()
557 	struct configfs_dirent * sd, * tmp;  in detach_attrs()  local
566 	list_for_each_entry_safe(sd, tmp, &parent_sd->s_children, s_sibling) {  in detach_attrs()
567 		if (!sd->s_element || !(sd->s_type & CONFIGFS_NOT_PINNED))  in detach_attrs()
570 		list_del_init(&sd->s_sibling);  in detach_attrs()
572 		configfs_drop_dentry(sd, dentry);  in detach_attrs()
573 		configfs_put(sd);  in detach_attrs()
614 	struct configfs_dirent *sd, *tmp;  in detach_groups()  local
620 	list_for_each_entry_safe(sd, tmp, &parent_sd->s_children, s_sibling) {  in detach_groups()
621 		if (!sd->s_element ||  in detach_groups()
622 		    !(sd->s_type & CONFIGFS_USET_DEFAULT))  in detach_groups()
625 		child = sd->s_dentry;  in detach_groups()
629 		configfs_detach_group(sd->s_element);  in detach_groups()
657 	struct configfs_dirent *sd;  in create_default_group()  local
672 			sd = child->d_fsdata;  in create_default_group()
673 			sd->s_type |= CONFIGFS_USET_DEFAULT;  in create_default_group()
845 	struct configfs_dirent *sd;  in configfs_attach_group()  local
849 		sd = dentry->d_fsdata;  in configfs_attach_group()
850 		sd->s_type |= CONFIGFS_USET_DIR;  in configfs_attach_group()
862 		configfs_adjust_dir_dirent_depth_before_populate(sd);  in configfs_attach_group()
869 		configfs_adjust_dir_dirent_depth_after_populate(sd);  in configfs_attach_group()
933 static void configfs_dump_one(struct configfs_dirent *sd, int level)  in configfs_dump_one()  argument
935 	pr_info("%*s\"%s\":\n", level, " ", configfs_get_name(sd));  in configfs_dump_one()
937 #define type_print(_type) if (sd->s_type & _type) pr_info("%*s %s\n", level, " ", #_type);  in configfs_dump_one()
948 static int configfs_dump(struct configfs_dirent *sd, int level)  in configfs_dump()  argument
953 	configfs_dump_one(sd, level);  in configfs_dump()
955 	if (!(sd->s_type & (CONFIGFS_DIR|CONFIGFS_ROOT)))  in configfs_dump()
958 	list_for_each_entry(child_sd, &sd->s_children, s_sibling) {  in configfs_dump()
1030 	struct configfs_dirent *child_sd, *sd;  in configfs_depend_prep()  local
1034 	sd = origin->d_fsdata;  in configfs_depend_prep()
1036 	if (sd->s_element == target)  /* Boo-yah */  in configfs_depend_prep()
1039 	list_for_each_entry(child_sd, &sd->s_children, s_sibling) {  in configfs_depend_prep()
1134 	struct configfs_dirent *sd;  in configfs_undepend_item()  local
1142 	sd = target->ci_dentry->d_fsdata;  in configfs_undepend_item()
1143 	BUG_ON(sd->s_dependent_count < 1);  in configfs_undepend_item()
1145 	sd->s_dependent_count -= 1;  in configfs_undepend_item()
1163 	struct configfs_dirent *sd;  in configfs_mkdir()  local
1168 	sd = dentry->d_parent->d_fsdata;  in configfs_mkdir()
1174 	if (!configfs_dirent_is_ready(sd)) {  in configfs_mkdir()
1179 	if (!(sd->s_type & CONFIGFS_USET_DIR)) {  in configfs_mkdir()
1282 	sd->s_type |= CONFIGFS_USET_IN_MKDIR;  in configfs_mkdir()
1291 	sd->s_type &= ~CONFIGFS_USET_IN_MKDIR;  in configfs_mkdir()
1335 	struct configfs_dirent *sd;  in configfs_rmdir()  local
1339 	sd = dentry->d_fsdata;  in configfs_rmdir()
1340 	if (sd->s_type & CONFIGFS_USET_DEFAULT)  in configfs_rmdir()
1371 		ret = sd->s_dependent_count ? -EBUSY : 0;  in configfs_rmdir()
1401 	if (sd->s_type & CONFIGFS_USET_DIR) {  in configfs_rmdir()
1520 static inline unsigned char dt_type(struct configfs_dirent *sd)  in dt_type()  argument
1522 	return (sd->s_mode >> 12) & 15;  in dt_type()
1607 			struct configfs_dirent *sd = dentry->d_fsdata;  in configfs_dir_lseek()  local
1614 			p = sd->s_children.next;  in configfs_dir_lseek()
1615 			while (n && p != &sd->s_children) {  in configfs_dir_lseek()
1755 	struct configfs_dirent *sd;  in configfs_register_subsystem()  local
1764 	sd = root->d_fsdata;  in configfs_register_subsystem()
1765 	link_group(to_config_group(sd->s_element), group);  in configfs_register_subsystem()
1774 		err = configfs_attach_group(sd->s_element, &group->cg_item,  in configfs_register_subsystem()