linux-kernel - Re: [PATCH net-next] kcm: Fix unnecessary psock unreservation.

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Message-Id: <168698642240.16794.4653349244571397318.git-patchwork-notify@kernel.org>
Date:   Sat, 17 Jun 2023 07:20:22 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     David Howells <dhowells@...hat.com>
Cc:     netdev@...r.kernel.org,
        syzbot+dd1339599f1840e4cc65@...kaller.appspotmail.com,
        tom@...bertland.com, tom@...ntonium.net, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
        axboe@...nel.dk, willy@...radead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] kcm: Fix unnecessary psock unreservation.

Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Thu, 15 Jun 2023 12:32:02 +0100 you wrote:
> kcm_write_msgs() calls unreserve_psock() to release its hold on the
> underlying TCP socket if it has run out of things to transmit, but if we
> have nothing in the write queue on entry (e.g. because someone did a
> zero-length sendmsg), we don't actually go into the transmission loop and
> as a consequence don't call reserve_psock().
> 
> Fix this by skipping the call to unreserve_psock() if we didn't reserve a
> psock.
> 
> [...]

Here is the summary with links:
  - [net-next] kcm: Fix unnecessary psock unreservation.
    https://git.kernel.org/netdev/net-next/c/9f8d0dc0ec4a

You are awesome, thank you!
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