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Fri, 03 Apr 2026 11:31:07 -0700 (PDT) Message-ID: <83e2f358-8be3-45c0-b877-03088ff9b516@kernel.dk> Date: Fri, 3 Apr 2026 12:31:07 -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 v5 0/4] io_uring: extend bvec registration To: Joanne Koong Cc: csander@purestorage.com, io-uring@vger.kernel.org References: <20260402160929.2749744-1-joannelkoong@gmail.com> <789726e1-c896-4073-b712-e4d03cce5133@kernel.dk> Content-Language: en-US From: Jens Axboe In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On 4/3/26 11:30 AM, Joanne Koong wrote: > On Fri, Apr 3, 2026 at 9:21 AM Jens Axboe wrote: >> >> On 4/2/26 10:09 AM, Joanne Koong wrote: >>> This series refactors and extends the io_uring registered buffers >>> infrastructure to allow external subsystems to register pre-existing bvec >>> arrays directly. >>> >>> The motivation for the patches in this series is to make fuse zero-copy >>> possible. These patches are split out from a previous larger >>> fuse-over-io_uring series [1]. The fuse zero-copy work that builds on top of >>> this is in [2]. >>> >>> Thanks, >>> Joanne >>> >>> [1] https://lore.kernel.org/linux-fsdevel/20260116233044.1532965-1-joannelkoong@gmail.com/ >>> [2] https://lore.kernel.org/linux-fsdevel/20260324224532.3733468-9-joannelkoong@gmail.com/ >>> >>> Changelog: >>> v4: https://lore.kernel.org/io-uring/20260327172631.3380702-1-joannelkoong@gmail.com/ >>> v4 -> v5: >>> * rebase to origin/for-7.1/io_uring >>> * drop the io_uring_registered_mem_region_get() patch >> >> Series looks good to me, but I don't think you used the right base? It >> does not seem to apply to for-7.1/io_uring, patch 1 runs into issues on >> the ublk part. >> >> Since this touches both and applies to neither right now, maybe do a >> respin and just base it on my for-next. Then I'll setup a >> for-7.1/io_uring-fuse branch that is just for-7.1/io_uring and >> for-7.1/block merged together. > > Ahh that's weird, it applies cleanly to for-7.1/io_uring on my end (on > top of commit f847bf6d2930) but I do see some merge conflicts with > for-next for the ublk commit 24d4c90286b9. Right, sorry I wasn't clear, does apply to for-7.1/io_uring, but you end up with non-trivial merge conflicts. It's always a bit tricky as the ublk changes generally take the block route, not the io_uring route, as it's more closely tied to that side. > I'll rebase this to for-next and send that out. Thanks! -- Jens Axboe