netdev - Re: [PATCH net v6] vhost_net: fix ubuf refcount incorrectly when sendmsg fails

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Date:   Mon, 04 Jan 2021 21:30:08 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     wangyunjian <wangyunjian@...wei.com>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, kuba@...nel.org,
        mst@...hat.com, jasowang@...hat.com,
        willemdebruijn.kernel@...il.com,
        virtualization@...ts.linux-foundation.org,
        jerry.lilijun@...wei.com, chenchanghu@...wei.com,
        xudingke@...wei.com, brian.huangbin@...wei.com
Subject: Re: [PATCH net v6] vhost_net: fix ubuf refcount incorrectly when sendmsg
 fails

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Tue, 29 Dec 2020 10:01:48 +0800 you wrote:
> From: Yunjian Wang <wangyunjian@...wei.com>
> 
> Currently the vhost_zerocopy_callback() maybe be called to decrease
> the refcount when sendmsg fails in tun. The error handling in vhost
> handle_tx_zerocopy() will try to decrease the same refcount again.
> This is wrong. To fix this issue, we only call vhost_net_ubuf_put()
> when vq->heads[nvq->desc].len == VHOST_DMA_IN_PROGRESS.
> 
> [...]

Here is the summary with links:
  - [net,v6] vhost_net: fix ubuf refcount incorrectly when sendmsg fails
    https://git.kernel.org/netdev/net/c/01e31bea7e62

You are awesome, thank you!
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