29 	struct afs_volume *volume;  in afs_alloc_volume()  local
36 	volume = kzalloc(sizeof(struct afs_volume), GFP_KERNEL);  in afs_alloc_volume()
37 	if (!volume)  in afs_alloc_volume()
40 	volume->vid		= vldb->vid[params->type];  in afs_alloc_volume()
41 	volume->update_at	= ktime_get_real_seconds() + afs_volume_record_life;  in afs_alloc_volume()
42 	volume->cell		= afs_get_cell(params->cell);  in afs_alloc_volume()
43 	volume->type		= params->type;  in afs_alloc_volume()
44 	volume->type_force	= params->force;  in afs_alloc_volume()
45 	volume->name_len	= vldb->name_len;  in afs_alloc_volume()
47 	atomic_set(&volume->usage, 1);  in afs_alloc_volume()
48 	INIT_LIST_HEAD(&volume->proc_link);  in afs_alloc_volume()
49 	rwlock_init(&volume->servers_lock);  in afs_alloc_volume()
50 	memcpy(volume->name, vldb->name, vldb->name_len + 1);  in afs_alloc_volume()
59 	volume->servers = slist;  in afs_alloc_volume()
60 	return volume;  in afs_alloc_volume()
63 	afs_put_cell(params->net, volume->cell);  in afs_alloc_volume()
64 	kfree(volume);  in afs_alloc_volume()
155 	struct afs_volume *volume;  in afs_create_volume()  local
164 		volume = ERR_PTR(vldb->error);  in afs_create_volume()
169 	volume = ERR_PTR(-ENOMEDIUM);  in afs_create_volume()
182 	volume = afs_alloc_volume(params, vldb, type_mask);  in afs_create_volume()
186 	return volume;  in afs_create_volume()
192 static void afs_destroy_volume(struct afs_net *net, struct afs_volume *volume)  in afs_destroy_volume()  argument
194 	_enter("%p", volume);  in afs_destroy_volume()
197 	ASSERTCMP(volume->cache, ==, NULL);  in afs_destroy_volume()
200 	afs_put_serverlist(net, volume->servers);  in afs_destroy_volume()
201 	afs_put_cell(net, volume->cell);  in afs_destroy_volume()
202 	kfree(volume);  in afs_destroy_volume()
210 void afs_put_volume(struct afs_cell *cell, struct afs_volume *volume)  in afs_put_volume()  argument
212 	if (volume) {  in afs_put_volume()
213 		_enter("%s", volume->name);  in afs_put_volume()
215 		if (atomic_dec_and_test(&volume->usage))  in afs_put_volume()
216 			afs_destroy_volume(cell->net, volume);  in afs_put_volume()
223 void afs_activate_volume(struct afs_volume *volume)  in afs_activate_volume()  argument
226 	volume->cache = fscache_acquire_cookie(volume->cell->cache,  in afs_activate_volume()
228 					       &volume->vid, sizeof(volume->vid),  in afs_activate_volume()
230 					       volume, 0, true);  in afs_activate_volume()
233 	write_lock(&volume->cell->proc_lock);  in afs_activate_volume()
234 	list_add_tail(&volume->proc_link, &volume->cell->proc_volumes);  in afs_activate_volume()
235 	write_unlock(&volume->cell->proc_lock);  in afs_activate_volume()
241 void afs_deactivate_volume(struct afs_volume *volume)  in afs_deactivate_volume()  argument
243 	_enter("%s", volume->name);  in afs_deactivate_volume()
245 	write_lock(&volume->cell->proc_lock);  in afs_deactivate_volume()
246 	list_del_init(&volume->proc_link);  in afs_deactivate_volume()
247 	write_unlock(&volume->cell->proc_lock);  in afs_deactivate_volume()
250 	fscache_relinquish_cookie(volume->cache, NULL,  in afs_deactivate_volume()
251 				  test_bit(AFS_VOLUME_DELETED, &volume->flags));  in afs_deactivate_volume()
252 	volume->cache = NULL;  in afs_deactivate_volume()
261 static int afs_update_volume_status(struct afs_volume *volume, struct key *key)  in afs_update_volume_status()  argument
273 	idsz = sprintf(idbuf, "%u", volume->vid);  in afs_update_volume_status()
275 	vldb = afs_vl_lookup_vldb(volume->cell, key, idbuf, idsz);  in afs_update_volume_status()
282 	if (vldb->name_len != volume->name_len ||  in afs_update_volume_status()
283 	    memcmp(vldb->name, volume->name, vldb->name_len) != 0) {  in afs_update_volume_status()
285 		memcpy(volume->name, vldb->name, AFS_MAXVOLNAME);  in afs_update_volume_status()
286 		volume->name_len = vldb->name_len;  in afs_update_volume_status()
290 	new = afs_alloc_server_list(volume->cell, key,  in afs_update_volume_status()
291 				    vldb, (1 << volume->type));  in afs_update_volume_status()
297 	write_lock(&volume->servers_lock);  in afs_update_volume_status()
300 	old = volume->servers;  in afs_update_volume_status()
302 		new->seq = volume->servers_seq + 1;  in afs_update_volume_status()
303 		volume->servers = new;  in afs_update_volume_status()
305 		volume->servers_seq++;  in afs_update_volume_status()
309 	volume->update_at = ktime_get_real_seconds() + afs_volume_record_life;  in afs_update_volume_status()
310 	clear_bit(AFS_VOLUME_NEEDS_UPDATE, &volume->flags);  in afs_update_volume_status()
311 	write_unlock(&volume->servers_lock);  in afs_update_volume_status()
314 	afs_put_serverlist(volume->cell->net, discard);  in afs_update_volume_status()
325 int afs_check_volume_status(struct afs_volume *volume, struct key *key)  in afs_check_volume_status()  argument
332 	if (volume->update_at <= now)  in afs_check_volume_status()
333 		set_bit(AFS_VOLUME_NEEDS_UPDATE, &volume->flags);  in afs_check_volume_status()
336 	if (!test_bit(AFS_VOLUME_NEEDS_UPDATE, &volume->flags) &&  in afs_check_volume_status()
337 	    !test_bit(AFS_VOLUME_WAIT, &volume->flags)) {  in afs_check_volume_status()
342 	if (!test_and_set_bit_lock(AFS_VOLUME_UPDATING, &volume->flags)) {  in afs_check_volume_status()
343 		ret = afs_update_volume_status(volume, key);  in afs_check_volume_status()
344 		clear_bit_unlock(AFS_VOLUME_WAIT, &volume->flags);  in afs_check_volume_status()
345 		clear_bit_unlock(AFS_VOLUME_UPDATING, &volume->flags);  in afs_check_volume_status()
346 		wake_up_bit(&volume->flags, AFS_VOLUME_WAIT);  in afs_check_volume_status()
351 	if (!test_bit(AFS_VOLUME_WAIT, &volume->flags)) {  in afs_check_volume_status()
356 	ret = wait_on_bit(&volume->flags, AFS_VOLUME_WAIT, TASK_INTERRUPTIBLE);  in afs_check_volume_status()