112 		unsigned long now = jiffies, ack_at;  in __rxrpc_propose_ACK()  local
115 			ack_at = usecs_to_jiffies(call->peer->srtt_us >> 3);  in __rxrpc_propose_ACK()
117 			ack_at = expiry;  in __rxrpc_propose_ACK()
119 		ack_at += READ_ONCE(call->tx_backoff);  in __rxrpc_propose_ACK()
120 		ack_at += now;  in __rxrpc_propose_ACK()
121 		if (time_before(ack_at, call->ack_at)) {  in __rxrpc_propose_ACK()
122 			WRITE_ONCE(call->ack_at, ack_at);  in __rxrpc_propose_ACK()
123 			rxrpc_reduce_call_timer(call, ack_at, now,  in __rxrpc_propose_ACK()
338 	t = READ_ONCE(call->ack_at);  in rxrpc_process_call()
341 		cmpxchg(&call->ack_at, t, now + MAX_JIFFY_OFFSET);  in rxrpc_process_call()
422 	set(call->ack_at);  in rxrpc_process_call()