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Wed, 18 Mar 2026 12:04:27 -0700 (PDT) Received: from [192.168.1.102] ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id 5614622812f47-467ba88efb2sm2300090b6e.3.2026.03.18.12.04.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 18 Mar 2026 12:04:25 -0700 (PDT) Message-ID: <8dc16ad6-f329-40de-b7f8-6bf051df3d35@kernel.dk> Date: Wed, 18 Mar 2026 13:04:23 -0600 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 v2 0/13] io_uring: add IORING_OP_BPF for extending io_uring To: Ming Lei Cc: io-uring@vger.kernel.org, Pavel Begunkov , Caleb Sander Mateos , Stefan Metzmacher References: <20260106101126.4064990-1-ming.lei@redhat.com> Content-Language: en-US From: Jens Axboe In-Reply-To: <20260106101126.4064990-1-ming.lei@redhat.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 1/6/26 3:11 AM, Ming Lei wrote: > Hello, > > Add IORING_OP_BPF for extending io_uring operations, follows typical cases: > > - buffer registered zero copy [1] > > Also there are some RAID like ublk servers which needs to generate data > parity in case of ublk zero copy > > - extend io_uring operations from application > > Easy to add one new syscall with IORING_OP_BPF > > - extend 64 byte SQE > > bpf map can store IO data conveniently > > - communicate in IO chain > > IORING_OP_BPF can be used for communicate among IOs seamlessly without requiring > extra syscall > > - pretty handy to inject error for test purpose > > Any comments & feedback are welcome! Ming, can you respin your series against the current tree? -- Jens Axboe