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Wed, 28 Oct 2026 07:44:35 -0700 (PDT) Received: from fedora-laptop ([172.245.82.59]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-85b1f83c972sm1734957a34.9.2026.10.28.07.44.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Oct 2026 07:44:35 -0700 (PDT) Date: Wed, 28 Oct 2026 09:44:27 -0500 From: Ming Lei To: Yoav Cohen Cc: Jens Axboe , linux-block@vger.kernel.org, csander@purestorage.com, jholzman@nvidia.com, omril@nvidia.com, ofer@nvidia.com Subject: Re: [PATCH v4 2/2] selftests: ublk: add rq_affinity test Message-ID: References: <20261028131829.45803-1-yoav@nvidia.com> <20261028131829.45803-3-yoav@nvidia.com> X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20261028131829.45803-3-yoav@nvidia.com> On Wed, Oct 28, 2026 at 03:18:29PM +0200, Yoav Cohen wrote: > Add UBLK_F_SUPPORT_RQ_AFFINITY to kublk's feature table, a > --rq_affinity option, and a test that writes and verifies data on a > single-queue loop device with rq_affinity set to 0, 1 and 2. > > kublk pins the queue thread to the first CPU of the hctx, so submit > from the last CPU in cpu_list. That way rq_affinity=2 always takes the > remote completion path. > > Signed-off-by: Yoav Cohen Reviewed-by: Ming Lei Thanks, Ming