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Subject: Re: [PATCH v3] sock: allow reading and changing sk_userlocks with
 setsockopt
From:   patchwork-bot+netdevbpf@kernel.org
Message-Id: <162807840601.323.12461942403559350811.git-patchwork-notify@kernel.org>
Date:   Wed, 04 Aug 2021 12:00:06 +0000
References: <20210804075556.2582-1-ptikhomirov@virtuozzo.com>
In-Reply-To: <20210804075556.2582-1-ptikhomirov@virtuozzo.com>
To:     Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Cc:     netdev@vger.kernel.org, davem@davemloft.net, kuba@kernel.org,
        arnd@arndb.de, edumazet@google.com, pabeni@redhat.com,
        fw@strlen.de, linux-kernel@vger.kernel.org,
        linux-alpha@vger.kernel.org, linux-mips@vger.kernel.org,
        linux-parisc@vger.kernel.org, sparclinux@vger.kernel.org,
        linux-arch@vger.kernel.org, avagin@gmail.com, kernel@openvz.org
Precedence: bulk

Hello:

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

On Wed,  4 Aug 2021 10:55:56 +0300 you wrote:
> SOCK_SNDBUF_LOCK and SOCK_RCVBUF_LOCK flags disable automatic socket
> buffers adjustment done by kernel (see tcp_fixup_rcvbuf() and
> tcp_sndbuf_expand()). If we've just created a new socket this adjustment
> is enabled on it, but if one changes the socket buffer size by
> setsockopt(SO_{SND,RCV}BUF*) it becomes disabled.
> 
> CRIU needs to call setsockopt(SO_{SND,RCV}BUF*) on each socket on
> restore as it first needs to increase buffer sizes for packet queues
> restore and second it needs to restore back original buffer sizes. So
> after CRIU restore all sockets become non-auto-adjustable, which can
> decrease network performance of restored applications significantly.
> 
> [...]

Here is the summary with links:
  - [v3] sock: allow reading and changing sk_userlocks with setsockopt
    https://git.kernel.org/netdev/net-next/c/04190bf8944d

You are awesome, thank you!
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