linux-kernel - Re: [V2 PATCH 0/9] vhost/macvtap zeropcopy fixes

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Message-ID: <20120502055008.GA29319@redhat.com>
Date:	Wed, 2 May 2012 08:50:09 +0300
From:	"Michael S. Tsirkin" <mst@...hat.com>
To:	Jason Wang <jasowang@...hat.com>
Cc:	eric.dumazet@...il.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, ebiederm@...ssion.com,
	davem@...emloft.net
Subject: Re: [V2 PATCH 0/9] vhost/macvtap zeropcopy fixes

On Wed, May 02, 2012 at 11:41:21AM +0800, Jason Wang wrote:
> This is an updated since the last series of vhost/macvtap zerocopy fixes which
> fixes the the possible transmission stall, host kernel stack overflow and other
> misc fixes.
> 
> Changes from V1:
> - Addressing comments from Eric and Michael.
> - Adding more fixes into the seires.

Thanks for fixing this.
Acked-by: Michael S. Tsirkin <mst@...hat.com>

Dave, can you merge this for 3.4 please?
Thanks!

> ---
> 
> Jason Wang (9):
>       macvtap: zerocopy: fix offset calculation when building skb
>       macvtap: zerocopy: fix truesize underestimation
>       macvtap: zerocopy: put page when fail to get all requested user pages
>       macvtap: zerocopy: set SKBTX_DEV_ZEROCOPY only when skb is built successfully
>       macvtap: zerocopy: validate vectors before building skb
>       vhost_net: zerocopy: fix possible NULL pointer dereference of vq->bufs
>       vhost_net: re-poll only on EAGAIN or ENOBUFS
>       vhost_net: zerocopy: adding and signalling immediately when fully copied
>       vhost: zerocopy: poll vq in zerocopy callback
> 
> 
>  drivers/net/macvtap.c |   57 ++++++++++++++++++++++++++++++++++---------------
>  drivers/vhost/net.c   |    7 ++++--
>  drivers/vhost/vhost.c |    1 +
>  3 files changed, 46 insertions(+), 19 deletions(-)
> 
> -- 
> Jason Wang
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