301 	unsigned long cons_pos, prod_pos;  in ringbuf_avail_data_sz()  local
304 	prod_pos = smp_load_acquire(&rb->producer_pos);  in ringbuf_avail_data_sz()
305 	return prod_pos - cons_pos;  in ringbuf_avail_data_sz()
410 	unsigned long cons_pos, prod_pos, new_prod_pos, pend_pos, flags;  in __bpf_ringbuf_reserve()  local
431 	prod_pos = rb->producer_pos;  in __bpf_ringbuf_reserve()
432 	new_prod_pos = prod_pos + len;  in __bpf_ringbuf_reserve()
434 	while (pend_pos < prod_pos) {  in __bpf_ringbuf_reserve()
457 	hdr = (void *)rb->data + (prod_pos & rb->mask);  in __bpf_ringbuf_reserve()
680 	u64 cons_pos, prod_pos;  in __bpf_user_ringbuf_peek()  local
683 	prod_pos = smp_load_acquire(&rb->producer_pos);  in __bpf_user_ringbuf_peek()
684 	if (prod_pos % 8)  in __bpf_user_ringbuf_peek()
689 	if (cons_pos >= prod_pos)  in __bpf_user_ringbuf_peek()
700 	if (total_len > prod_pos - cons_pos)  in __bpf_user_ringbuf_peek()