Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Subject: Re: [PATCH v7 bpf-next 01/11] net: Introduce
 net.ipv4.tcp_migrate_req.
To:     Kuniyuki Iwashima <kuniyu@amazon.co.jp>,
        "David S . Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        Eric Dumazet <edumazet@google.com>,
        Alexei Starovoitov <ast@kernel.org>,
        Daniel Borkmann <daniel@iogearbox.net>,
        Andrii Nakryiko <andrii@kernel.org>,
        Martin KaFai Lau <kafai@fb.com>
Cc:     Benjamin Herrenschmidt <benh@amazon.com>,
        Kuniyuki Iwashima <kuni1840@gmail.com>, bpf@vger.kernel.org,
        netdev@vger.kernel.org, linux-kernel@vger.kernel.org
References: <20210521182104.18273-1-kuniyu@amazon.co.jp>
 <20210521182104.18273-2-kuniyu@amazon.co.jp>
From:   Eric Dumazet <eric.dumazet@gmail.com>
Message-ID: <3a9ecbe4-fe7e-1acf-36b7-1f999f8f01d6@gmail.com>
Date:   Thu, 10 Jun 2021 19:24:14 +0200
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101
 Thunderbird/78.10.0
MIME-Version: 1.0
In-Reply-To: <20210521182104.18273-2-kuniyu@amazon.co.jp>
Content-Type: text/plain; charset=utf-8
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Precedence: bulk


On 5/21/21 8:20 PM, Kuniyuki Iwashima wrote:
> This commit adds a new sysctl option: net.ipv4.tcp_migrate_req. If this
> option is enabled or eBPF program is attached, we will be able to migrate
> child sockets from a listener to another in the same reuseport group after
> close() or shutdown() syscalls.
> 
> Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
> Reviewed-by: Benjamin Herrenschmidt <benh@amazon.com>
> Acked-by: Martin KaFai Lau <kafai@fb.com>
> ---
>  Documentation/networking/ip-sysctl.rst | 25 +++++++++++++++++++++++++
>  include/net/netns/ipv4.h               |  1 +
>  net/ipv4/sysctl_net_ipv4.c             |  9 +++++++++
>  3 files changed, 35 insertions(+)

Reviewed-by: Eric Dumazet <edumazet@google.com>