[dpdk-dev] [PATCH RFC v3 1/3] vhost: use SMP barriers instead of compiler ones.

Xie, Huawei huawei.xie at intel.com
Fri Mar 18 11:08:41 CET 2016


On 2/24/2016 7:47 PM, Ilya Maximets wrote:
>  		 * Wait until it's our turn to add our buffer
> @@ -979,7 +979,7 @@ rte_vhost_dequeue_burst(struct virtio_net *dev, uint16_t queue_id,
>  		entry_success++;
>  	}
>  
> -	rte_compiler_barrier();
> +	rte_smp_rmb();

smp_rmb()?

>  	vq->used->idx += entry_success;
>  	vhost_log_used_vring(dev, vq, offsetof(struct vring_used, idx),
>  			sizeof(vq->used->idx));
> -- 2.5.0



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