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

From: Michael S. Tsirkin
Date: Wed May 02 2012 - 01:50:34 EST


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@xxxxxxxxxx>

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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