sk_rx_queue_mapping is located in a cache line that should be kept read mostly.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
if (skb_rx_queue_recorded(skb)) {
u16 rx_queue = skb_get_rx_queue(skb);
if (skb_rx_queue_recorded(skb)) {
u16 rx_queue = skb_get_rx_queue(skb);
- if (WARN_ON_ONCE(rx_queue == NO_QUEUE_MAPPING))
- return;
-
- sk->sk_rx_queue_mapping = rx_queue;
+ if (unlikely(READ_ONCE(sk->sk_rx_queue_mapping) != rx_queue))
+ WRITE_ONCE(sk->sk_rx_queue_mapping, rx_queue);