39 	struct buf_ring *br;  in buf_ring_alloc()  local
43 	br = malloc(sizeof(struct buf_ring) + count*sizeof(caddr_t),  in buf_ring_alloc()
45 	if (br == NULL)  in buf_ring_alloc()
48 	br->br_lock = lock;  in buf_ring_alloc()
50 	br->br_prod_size = br->br_cons_size = count;  in buf_ring_alloc()
51 	br->br_prod_mask = br->br_cons_mask = count-1;  in buf_ring_alloc()
52 	br->br_prod_head = br->br_cons_head = 0;  in buf_ring_alloc()
53 	br->br_prod_tail = br->br_cons_tail = 0;  in buf_ring_alloc()
55 	return (br);  in buf_ring_alloc()
59 buf_ring_free(struct buf_ring *br, struct malloc_type *type)  in buf_ring_free()  argument
61 	free(br, type);  in buf_ring_free()