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From: Jason Wang <jasowang@redhat.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	kvm@vger.kernel.org, virtualization@lists.linux-foundation.org
Subject: Re: [PATCH net-next 7/8] vhost_net: try batch dequing from skb array
Date: Wed, 29 Mar 2017 17:58:23 +0800	[thread overview]
Message-ID: <bf511f4a-b1d0-d732-a01e-9cd4b8ae6817__15389.788701623$1490781533$gmane$org@redhat.com> (raw)
In-Reply-To: <f41bb12f-10d6-9fb2-1cd2-76e3e9460aff@redhat.com>



On 2017年03月23日 13:34, Jason Wang wrote:
>
>
>>
>>> +{
>>> +    if (rvq->rh != rvq->rt)
>>> +        goto out;
>>> +
>>> +    rvq->rh = rvq->rt = 0;
>>> +    rvq->rt = skb_array_consume_batched_bh(rvq->rx_array, rvq->rxq,
>>> +                        VHOST_RX_BATCH);
>> A comment explaining why is is -bh would be helpful.
>
> Ok.
>
> Thanks 

Rethink about this. It looks like -bh is not needed in this case since 
no consumer run in bh.

Thanks
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  reply	other threads:[~2017-03-29  9:58 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-21  4:04 [PATCH net-next 0/8] vhost-net rx batching Jason Wang
2017-03-21  4:04 ` Jason Wang
2017-03-21  4:04 ` [PATCH net-next 1/8] ptr_ring: introduce batch dequeuing Jason Wang
2017-03-21  4:04   ` Jason Wang
2017-03-21 10:25   ` Sergei Shtylyov
2017-03-22  3:16     ` Jason Wang
2017-03-22  3:16       ` Jason Wang
2017-03-22 13:43   ` Michael S. Tsirkin
2017-03-22 13:43     ` Michael S. Tsirkin
2017-03-23  5:33     ` Jason Wang
2017-03-23  5:33       ` Jason Wang
2017-03-21  4:04 ` [PATCH net-next 2/8] skb_array: " Jason Wang
2017-03-21  4:04   ` Jason Wang
2017-03-21  4:04 ` [PATCH net-next 3/8] tun: export skb_array Jason Wang
2017-03-21  4:04   ` Jason Wang
2017-03-21  4:04 ` [PATCH net-next 4/8] tap: " Jason Wang
2017-03-21  4:04   ` Jason Wang
2017-03-21  4:04 ` [PATCH net-next 5/8] tun: support receiving skb through msg_control Jason Wang
2017-03-21  4:04   ` Jason Wang
2017-03-21  4:04 ` [PATCH net-next 6/8] tap: support receiving skb from msg_control Jason Wang
2017-03-21  4:04   ` Jason Wang
2017-03-21  4:04 ` [PATCH net-next 7/8] vhost_net: try batch dequing from skb array Jason Wang
2017-03-21  4:04   ` Jason Wang
2017-03-22 14:16   ` Michael S. Tsirkin
2017-03-22 14:16     ` Michael S. Tsirkin
2017-03-23  5:34     ` Jason Wang
2017-03-23  5:34       ` Jason Wang
2017-03-29  9:58       ` Jason Wang [this message]
2017-03-29  9:58       ` Jason Wang
2017-03-29 10:46         ` Pankaj Gupta
2017-03-29 10:46           ` Pankaj Gupta
2017-03-29 10:53           ` Jason Wang
2017-03-29 10:53             ` Jason Wang
2017-03-29 21:47             ` Michael S. Tsirkin
2017-03-29 21:47               ` Michael S. Tsirkin
2017-03-21  4:04 ` [PATCH net-next 8/8] vhost_net: use lockless peeking for skb array during busy polling Jason Wang
2017-03-21  4:04   ` Jason Wang
2017-03-29 12:07   ` Michael S. Tsirkin
2017-03-29 12:07     ` Michael S. Tsirkin
2017-03-30  2:16     ` Jason Wang
2017-03-30  2:33       ` Michael S. Tsirkin
2017-03-30  2:33         ` Michael S. Tsirkin
2017-03-30  3:53         ` Jason Wang
2017-03-30  3:53           ` Jason Wang
2017-03-30  2:16     ` Jason Wang

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