23 bool afs_begin_vnode_operation(struct afs_fs_cursor *fc, struct afs_vnode *vnode,  in afs_begin_vnode_operation()  argument
27 	fc->vnode = vnode;  in afs_begin_vnode_operation()
34 		if (mutex_lock_interruptible(&vnode->io_lock) < 0) {  in afs_begin_vnode_operation()
40 		mutex_lock(&vnode->io_lock);  in afs_begin_vnode_operation()
43 	if (vnode->lock_state != AFS_VNODE_LOCK_NONE)  in afs_begin_vnode_operation()
53 				   struct afs_vnode *vnode)  in afs_start_fs_iteration()  argument
58 	read_lock(&vnode->volume->servers_lock);  in afs_start_fs_iteration()
59 	fc->server_list = afs_get_serverlist(vnode->volume->servers);  in afs_start_fs_iteration()
60 	read_unlock(&vnode->volume->servers_lock);  in afs_start_fs_iteration()
65 	cbi = rcu_dereference_protected(vnode->cb_interest,  in afs_start_fs_iteration()
66 					lockdep_is_held(&vnode->io_lock));  in afs_start_fs_iteration()
86 		write_seqlock(&vnode->cb_lock);  in afs_start_fs_iteration()
87 		ASSERTCMP(cbi, ==, rcu_access_pointer(vnode->cb_interest));  in afs_start_fs_iteration()
88 		rcu_assign_pointer(vnode->cb_interest, NULL);  in afs_start_fs_iteration()
89 		if (test_and_clear_bit(AFS_VNODE_CB_PROMISED, &vnode->flags))  in afs_start_fs_iteration()
90 			vnode->cb_break++;  in afs_start_fs_iteration()
91 		write_sequnlock(&vnode->cb_lock);  in afs_start_fs_iteration()
93 		afs_put_cb_interest(afs_v2net(vnode), cbi);  in afs_start_fs_iteration()
144 	struct afs_vnode *vnode = fc->vnode;  in afs_select_fileserver()  local
190 			write_lock(&vnode->volume->servers_lock);  in afs_select_fileserver()
192 			write_unlock(&vnode->volume->servers_lock);  in afs_select_fileserver()
194 			set_bit(AFS_VOLUME_NEEDS_UPDATE, &vnode->volume->flags);  in afs_select_fileserver()
195 			error = afs_check_volume_status(vnode->volume, fc->key);  in afs_select_fileserver()
199 			if (test_bit(AFS_VOLUME_DELETED, &vnode->volume->flags)) {  in afs_select_fileserver()
207 			if (vnode->volume->servers == fc->server_list) {  in afs_select_fileserver()
227 			if (!test_and_set_bit(AFS_VOLUME_OFFLINE, &vnode->volume->flags)) {  in afs_select_fileserver()
228 				afs_busy(vnode->volume, fc->ac.abort_code);  in afs_select_fileserver()
229 				clear_bit(AFS_VOLUME_BUSY, &vnode->volume->flags);  in afs_select_fileserver()
251 			if (!test_and_set_bit(AFS_VOLUME_BUSY, &vnode->volume->flags)) {  in afs_select_fileserver()
252 				afs_busy(vnode->volume, fc->ac.abort_code);  in afs_select_fileserver()
253 				clear_bit(AFS_VOLUME_OFFLINE, &vnode->volume->flags);  in afs_select_fileserver()
282 			set_bit(AFS_VOLUME_WAIT, &vnode->volume->flags);  in afs_select_fileserver()
283 			set_bit(AFS_VOLUME_NEEDS_UPDATE, &vnode->volume->flags);  in afs_select_fileserver()
284 			error = afs_check_volume_status(vnode->volume, fc->key);  in afs_select_fileserver()
297 			if (vnode->volume->servers == fc->server_list) {  in afs_select_fileserver()
305 			clear_bit(AFS_VOLUME_OFFLINE, &vnode->volume->flags);  in afs_select_fileserver()
306 			clear_bit(AFS_VOLUME_BUSY, &vnode->volume->flags);  in afs_select_fileserver()
335 	afs_put_cb_interest(afs_v2net(vnode), fc->cbi);  in afs_select_fileserver()
337 	afs_put_serverlist(afs_v2net(vnode), fc->server_list);  in afs_select_fileserver()
344 	error = afs_check_volume_status(vnode->volume, fc->key);  in afs_select_fileserver()
348 	if (!afs_start_fs_iteration(fc, vnode))  in afs_select_fileserver()
351 	_debug("__ VOL %llx __", vnode->volume->vid);  in afs_select_fileserver()
352 	error = afs_probe_fileservers(afs_v2net(vnode), fc->key, fc->server_list);  in afs_select_fileserver()
370 		afs_put_cb_interest(afs_v2net(vnode), fc->cbi);  in afs_select_fileserver()
412 	error = afs_register_server_cb_interest(vnode, fc->server_list,  in afs_select_fileserver()
418 		rcu_dereference_protected(vnode->cb_interest,  in afs_select_fileserver()
419 					  lockdep_is_held(&vnode->io_lock)));  in afs_select_fileserver()
488 	struct afs_vnode *vnode = fc->vnode;  in afs_select_current_fileserver()  local
495 	cbi = rcu_dereference_protected(vnode->cb_interest,  in afs_select_current_fileserver()
496 					lockdep_is_held(&vnode->io_lock));  in afs_select_current_fileserver()
618 	struct afs_net *net = afs_v2net(fc->vnode);  in afs_end_vnode_operation()
626 	mutex_unlock(&fc->vnode->io_lock);  in afs_end_vnode_operation()