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Tue, 09 Sep 2025 06:35:09 -0700 (PDT) From: Jens Axboe To: Caleb Sander Mateos Cc: io-uring@vger.kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <20250904170902.2624135-1-csander@purestorage.com> References: <20250904170902.2624135-1-csander@purestorage.com> Subject: Re: [PATCH v2 0/5] io_uring: avoid uring_lock for IORING_SETUP_SINGLE_ISSUER Message-Id: <175742490970.76494.10067269818248850302.b4-ty@kernel.dk> Date: Tue, 09 Sep 2025 07:35:09 -0600 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Mailer: b4 0.14.3-dev-2ce6c On Thu, 04 Sep 2025 11:08:57 -0600, Caleb Sander Mateos wrote: > As far as I can tell, setting IORING_SETUP_SINGLE_ISSUER when creating > an io_uring doesn't actually enable any additional optimizations (aside > from being a requirement for IORING_SETUP_DEFER_TASKRUN). This series > leverages IORING_SETUP_SINGLE_ISSUER's guarantee that only one task > submits SQEs to skip taking the uring_lock mutex in the submission and > task work paths. > > [...] Applied, thanks! [1/5] io_uring: don't include filetable.h in io_uring.h commit: 5d4c52bfa8cdc1dc1ff701246e662be3f43a3fe1 [2/5] io_uring/rsrc: respect submitter_task in io_register_clone_buffers() commit: 2f076a453f75de691a081c89bce31b530153d53b [3/5] io_uring: clear IORING_SETUP_SINGLE_ISSUER for IORING_SETUP_SQPOLL commit: 6f5a203998fcf43df1d43f60657d264d1918cdcd [4/5] io_uring: factor out uring_lock helpers commit: 7940a4f3394a6af801af3f2bcd1d491a71a7631d [5/5] io_uring: avoid uring_lock for IORING_SETUP_SINGLE_ISSUER commit: 4cc292a0faf1f0755935aebc9b288ce578d0ced2 Best regards, -- Jens Axboe