| Message ID | 20241018052310.2612084-1-edumazet@google.com (mailing list archive) |
|---|---|
| State | New |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | [net-next] net: netdev_tx_sent_queue() small optimization | expand |
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 86a0b7eb9461433822996d3f6374cca8ec5a85b9..bbd30f3c5d290f323394d9f6f9b668f4d87ae042 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -3517,7 +3517,7 @@ static inline void netdev_tx_sent_queue(struct netdev_queue *dev_queue, * because in netdev_tx_completed_queue we update the dql_completed * before checking the XOFF flag. */ - smp_mb(); + smp_mb__after_atomic(); /* check again in case another CPU has just made room avail */ if (unlikely(dql_avail(&dev_queue->dql) >= 0))
Change smp_mb() imediately following a set_bit() with smp_mb__after_atomic(). Signed-off-by: Eric Dumazet <edumazet@google.com> --- include/linux/netdevice.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)