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Wed, 26 Nov 2025 14:19:01 -0800 (PST) Message-ID: <46280bc6-0db9-4526-aa7d-3e1143c33303@kernel.dk> Date: Wed, 26 Nov 2025 15:19:00 -0700 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] io_uring/net: wire up support for sk->sk_prot->uring_cmd() with SOCKET_URING_OP_PASSTHROUGH_FLAG To: Stefan Metzmacher , io-uring@vger.kernel.org Cc: "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Kuniyuki Iwashima , Willem de Bruijn , netdev@vger.kernel.org, linux-cifs@vger.kernel.org, linux-kernel@vger.kernel.org References: <20251126111931.1788970-1-metze@samba.org> Content-Language: en-US From: Jens Axboe In-Reply-To: <20251126111931.1788970-1-metze@samba.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 11/26/25 4:19 AM, Stefan Metzmacher wrote: > This will allow network protocols to implement async operations > instead of using ioctl() syscalls. > > By using the high bit there's more than enough room for generic > calls to be added, but also more than enough for protocols to > implement their own specific opcodes. > > The IPPROTO_SMBDIRECT socket layer [1] I'm currently working on, > will use this in future in order to let Samba use efficient RDMA offload. Patch looks fine to me, but I think it needs to be submitted with an actual user of it too. If not, then it's just unused infrastructure... > [1] > https://git.samba.org/?p=metze/linux/wip.git;a=shortlog;h=refs/heads/master-ipproto-smbdirect This looks interesting, however! -- Jens Axboe