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Fri, 28 Mar 2025 11:04:47 -0700 (PDT) X-Relaying-Domain: purestorage.com Received: from dev-csander.dev.purestorage.com (dev-csander.dev.purestorage.com [10.7.70.37]) by c7-smtp-2023.dev.purestorage.com (Postfix) with ESMTP id D725C340721; Fri, 28 Mar 2025 12:04:46 -0600 (MDT) Received: by dev-csander.dev.purestorage.com (Postfix, from userid 1557716354) id D34F9E412FD; Fri, 28 Mar 2025 12:04:46 -0600 (MDT) From: Caleb Sander Mateos To: Ming Lei , Jens Axboe Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, Caleb Sander Mateos Subject: [PATCH 3/5] ublk: get ubq from pdu in ublk_cmd_list_tw_cb() Date: Fri, 28 Mar 2025 12:04:09 -0600 Message-ID: <20250328180411.2696494-4-csander@purestorage.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20250328180411.2696494-1-csander@purestorage.com> References: <20250328180411.2696494-1-csander@purestorage.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Save a few pointer dereferences by obtaining struct ublk_queue *ubq from the ublk_uring_cmd_pdu instead of the request's mq_hctx. Signed-off-by: Caleb Sander Mateos --- drivers/block/ublk_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c index 8b9780c0feab..9276d1fcc100 100644 --- a/drivers/block/ublk_drv.c +++ b/drivers/block/ublk_drv.c @@ -1285,11 +1285,11 @@ static void ublk_queue_cmd(struct ublk_queue *ubq, = struct request *rq) static void ublk_cmd_list_tw_cb(struct io_uring_cmd *cmd, unsigned int issue_flags) { struct ublk_uring_cmd_pdu *pdu =3D ublk_get_uring_cmd_pdu(cmd); struct request *rq =3D pdu->req_list; - struct ublk_queue *ubq =3D rq->mq_hctx->driver_data; + struct ublk_queue *ubq =3D pdu->ubq; struct request *next; =20 do { next =3D rq->rq_next; rq->rq_next =3D NULL; --=20 2.45.2