129 	RING_IDX cons, prod;  in p9_xen_write_todo()  local
132 	prod = ring->intf->out_prod;  in p9_xen_write_todo()
136 		xen_9pfs_queued(prod, cons, XEN_9PFS_RING_SIZE) >= size;  in p9_xen_write_todo()
142 	RING_IDX cons, prod, masked_cons, masked_prod;  in p9_xen_request()  local
167 	prod = ring->intf->out_prod;  in p9_xen_request()
170 	if (XEN_9PFS_RING_SIZE - xen_9pfs_queued(prod, cons,  in p9_xen_request()
176 	masked_prod = xen_9pfs_mask(prod, XEN_9PFS_RING_SIZE);  in p9_xen_request()
184 	prod += size;  in p9_xen_request()
185 	ring->intf->out_prod = prod;  in p9_xen_request()
197 	RING_IDX cons, prod, masked_cons, masked_prod;  in p9_xen_response()  local
207 		prod = ring->intf->in_prod;  in p9_xen_response()
210 		if (xen_9pfs_queued(prod, cons, XEN_9PFS_RING_SIZE) <  in p9_xen_response()
216 		masked_prod = xen_9pfs_mask(prod, XEN_9PFS_RING_SIZE);  in p9_xen_response()