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(ring)) >= 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()
171 	    xen_9pfs_queued(prod, cons, XEN_9PFS_RING_SIZE(ring)) < size) {  in p9_xen_request()
176 	masked_prod = xen_9pfs_mask(prod, XEN_9PFS_RING_SIZE(ring));  in p9_xen_request()
185 	prod += size;  in p9_xen_request()
186 	ring->intf->out_prod = prod;  in p9_xen_request()
198 	RING_IDX cons, prod, masked_cons, masked_prod;  in p9_xen_response()  local
208 		prod = ring->intf->in_prod;  in p9_xen_response()
211 		if (xen_9pfs_queued(prod, cons, XEN_9PFS_RING_SIZE(ring)) <  in p9_xen_response()
217 		masked_prod = xen_9pfs_mask(prod, XEN_9PFS_RING_SIZE(ring));  in p9_xen_response()