37 	struct afs_cell *cell;  in afs_cell_alloc()  local
54 	cell = kzalloc(sizeof(struct afs_cell) + namelen + 1, GFP_KERNEL);  in afs_cell_alloc()
55 	if (!cell) {  in afs_cell_alloc()
60 	memcpy(cell->name, name, namelen);  in afs_cell_alloc()
61 	cell->name[namelen] = 0;  in afs_cell_alloc()
63 	atomic_set(&cell->usage, 1);  in afs_cell_alloc()
64 	INIT_LIST_HEAD(&cell->link);  in afs_cell_alloc()
65 	rwlock_init(&cell->servers_lock);  in afs_cell_alloc()
66 	INIT_LIST_HEAD(&cell->servers);  in afs_cell_alloc()
67 	init_rwsem(&cell->vl_sem);  in afs_cell_alloc()
68 	INIT_LIST_HEAD(&cell->vl_list);  in afs_cell_alloc()
69 	spin_lock_init(&cell->vl_lock);  in afs_cell_alloc()
105 		cell->vl_addrs[cell->vl_naddrs++].s_addr =  in afs_cell_alloc()
108 	} while (cell->vl_naddrs < AFS_CELL_MAX_ADDRS && (_vllist = next));  in afs_cell_alloc()
113 	cp = cell->name;  in afs_cell_alloc()
124 	cell->anonymous_key = key;  in afs_cell_alloc()
127 	       cell->anonymous_key, key_serial(cell->anonymous_key));  in afs_cell_alloc()
129 	_leave(" = %p", cell);  in afs_cell_alloc()
130 	return cell;  in afs_cell_alloc()
136 	key_put(cell->anonymous_key);  in afs_cell_alloc()
138 	kfree(cell);  in afs_cell_alloc()
153 	struct afs_cell *cell;  in afs_cell_create()  local
160 	list_for_each_entry(cell, &afs_cells, link) {  in afs_cell_create()
161 		if (strncasecmp(cell->name, name, namesz) == 0)  in afs_cell_create()
166 	cell = afs_cell_alloc(name, namesz, vllist);  in afs_cell_create()
167 	if (IS_ERR(cell)) {  in afs_cell_create()
168 		_leave(" = %ld", PTR_ERR(cell));  in afs_cell_create()
170 		return cell;  in afs_cell_create()
174 	ret = afs_proc_cell_setup(cell);  in afs_cell_create()
180 	cell->cache = fscache_acquire_cookie(afs_cache_netfs.primary_index,  in afs_cell_create()
182 					     cell, true);  in afs_cell_create()
187 	list_add_tail(&cell->link, &afs_cells);  in afs_cell_create()
191 	list_add_tail(&cell->proc_link, &afs_proc_cells);  in afs_cell_create()
195 	_leave(" = %p", cell);  in afs_cell_create()
196 	return cell;  in afs_cell_create()
200 	key_put(cell->anonymous_key);  in afs_cell_create()
201 	kfree(cell);  in afs_cell_create()
206 	if (retref && !IS_ERR(cell))  in afs_cell_create()
207 		afs_get_cell(cell);  in afs_cell_create()
213 		_leave(" = %p", cell);  in afs_cell_create()
214 		return cell;  in afs_cell_create()
271 	struct afs_cell *cell;  in afs_cell_lookup()  local
280 		list_for_each_entry(cell, &afs_cells, link) {  in afs_cell_lookup()
281 			if (strncmp(cell->name, name, namesz) == 0) {  in afs_cell_lookup()
282 				afs_get_cell(cell);  in afs_cell_lookup()
286 		cell = ERR_PTR(-ENOENT);  in afs_cell_lookup()
292 		cell = afs_cell_root;  in afs_cell_lookup()
293 		if (!cell) {  in afs_cell_lookup()
300 			cell = ERR_PTR(-EDESTADDRREQ);  in afs_cell_lookup()
302 			afs_get_cell(cell);  in afs_cell_lookup()
309 	_leave(" = %p", cell);  in afs_cell_lookup()
310 	return cell;  in afs_cell_lookup()
316 	cell = afs_cell_create(name, namesz, NULL, true);  in afs_cell_lookup()
318 	_leave(" = %p", cell);  in afs_cell_lookup()
319 	return cell;  in afs_cell_lookup()
326 struct afs_cell *afs_get_cell_maybe(struct afs_cell *cell)
330 	if (cell && !list_empty(&cell->link))
331 		afs_get_cell(cell);
333 		cell = NULL;
336 	return cell;
343 void afs_put_cell(struct afs_cell *cell)  in afs_put_cell()  argument
345 	if (!cell)  in afs_put_cell()
348 	_enter("%p{%d,%s}", cell, atomic_read(&cell->usage), cell->name);  in afs_put_cell()
350 	ASSERTCMP(atomic_read(&cell->usage), >, 0);  in afs_put_cell()
356 	if (likely(!atomic_dec_and_test(&cell->usage))) {  in afs_put_cell()
362 	ASSERT(list_empty(&cell->servers));  in afs_put_cell()
363 	ASSERT(list_empty(&cell->vl_list));  in afs_put_cell()
377 static void afs_cell_destroy(struct afs_cell *cell)  in afs_cell_destroy()  argument
379 	_enter("%p{%d,%s}", cell, atomic_read(&cell->usage), cell->name);  in afs_cell_destroy()
381 	ASSERTCMP(atomic_read(&cell->usage), >=, 0);  in afs_cell_destroy()
382 	ASSERT(list_empty(&cell->link));  in afs_cell_destroy()
385 	if (atomic_read(&cell->usage) > 0) {  in afs_cell_destroy()
388 		_debug("wait for cell %s", cell->name);  in afs_cell_destroy()
392 		while (atomic_read(&cell->usage) > 0) {  in afs_cell_destroy()
402 	ASSERTCMP(atomic_read(&cell->usage), ==, 0);  in afs_cell_destroy()
403 	ASSERT(list_empty(&cell->servers));  in afs_cell_destroy()
404 	ASSERT(list_empty(&cell->vl_list));  in afs_cell_destroy()
406 	afs_proc_cell_remove(cell);  in afs_cell_destroy()
409 	list_del_init(&cell->proc_link);  in afs_cell_destroy()
413 	fscache_relinquish_cookie(cell->cache, 0);  in afs_cell_destroy()
415 	key_put(cell->anonymous_key);  in afs_cell_destroy()
416 	kfree(cell);  in afs_cell_destroy()
427 	struct afs_cell *cell;  in afs_cell_purge()  local
436 		cell = NULL;  in afs_cell_purge()
442 			cell = list_entry(afs_cells.next,  in afs_cell_purge()
444 			list_del_init(&cell->link);  in afs_cell_purge()
449 		if (cell) {  in afs_cell_purge()
451 			       cell->name, atomic_read(&cell->usage));  in afs_cell_purge()
454 			afs_cell_destroy(cell);  in afs_cell_purge()