From nobody Sun Feb 8 18:49:34 2026 Received: from mail-pl1-f228.google.com (mail-pl1-f228.google.com [209.85.214.228]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C48B72343C0 for ; Sat, 3 Jan 2026 00:45:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.228 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767401137; cv=none; b=qHpuTl2obRAfqKH1/NgaGfgHnaS9zFbGE19Jtd6ipYtgGd25eriOSYVCiND6POSZEKKJpk2OS+PtpQieKuzyXhCHtLcbxI9Sn2vsYK/KMjvJsyLyPEnwZUPId8PM2ZMMwRKk2XglezRaec6UxHePhfgn45QMvvzvfv6zcZpVBhE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767401137; c=relaxed/simple; bh=5miXCM+/LRoHoro59T+z+kk+Lnrwb+6jT45GlYIcY/g=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=e2tD0oWKrzam3A2QtHEdew/nUJxhrF9+ToKUnvx9XFVhGC6nnnKR6flxoV4x9Q7kGuHOKQRDGpYashtmRJYtq9uToYLxd4wAGQAG/EmtTVK3VNeHg9Ua4M+0vGIZN1l/TOlfbG95FSziI6jBiWqW9+1bMXOW5buaUyq78n+Cw7o= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=purestorage.com; spf=fail smtp.mailfrom=purestorage.com; dkim=pass (2048-bit key) header.d=purestorage.com header.i=@purestorage.com header.b=cOgDs9t5; arc=none smtp.client-ip=209.85.214.228 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=purestorage.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=purestorage.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=purestorage.com header.i=@purestorage.com header.b="cOgDs9t5" Received: by mail-pl1-f228.google.com with SMTP id d9443c01a7336-2a31d7107faso16995615ad.0 for ; Fri, 02 Jan 2026 16:45:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=purestorage.com; s=google2022; t=1767401134; x=1768005934; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=1p1lVHFdfrJVwcqNN1Ki9cbLGf4AMYaFBS/YOLtQ7ow=; b=cOgDs9t515MUNFKkFh3u1OsUX6W22RI2o6cDtXm71uJnVDtd/dcwQKzCiE/qwwhd1q tal4757Yg9EJn3hqVZMSJeXvWp084F06CYyw+lePbATcb6LkgP++CZjuN3dfvg0NLjte V2o6tOeX6PCumaDBL/gb5CIi3JdpbhC1iGloTezxKmLlVseBmWoHQ2ROcYCVANEnvlqn SVvi+dewPEjZ26j7c0t4dIBZbHY327GOWFIh+MXgSpfCyOOJA4iJ04JOOassLkahWMaU OhboYg2yroTpWrlk8t1do0vo4EsNYjoeocPlArhG7tS3hl35OI7REKpqCoF0kTdBk+HQ 4FTQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767401134; x=1768005934; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=1p1lVHFdfrJVwcqNN1Ki9cbLGf4AMYaFBS/YOLtQ7ow=; b=wZuxsL9KnQJ7PrsR8eTEvDo8LJTav8lbLOdp7mV8V9/fayDCGXdB8t0th5R1so99fD ALXGUirjjQA6VJDZzwE3xwMUbTrnNbXrtVK7jjuJzS6qGYnC7dC66tbRCMNnjIaWm1M2 /BW8WpddrU08Nhl6wd5sj676Lfs1ZGkVFZIzU0omKBEaKS0eh/DyEijJDsqPXZcrhnnG 2hRg/OHnvRi1SP53JKXPu7qBZCBuQlClh+rqXPvdPwjJzV3fiwXiUpSzlc7U0lxvsfjo VdJfQHXR9f1rFffbe+GEqFCKeNgw9rBJpWyFDQQ2DhsobgqvVSU1fA9ApSMn1oKtyTok nxPw== X-Forwarded-Encrypted: i=1; AJvYcCUerbjCl5cTwnjmzjaaNJJa2t2T/W4ibvQ6EmZuP36VDxEYD3YZw8ttIQIwrG7lhh7ouTgbWMsJ/JgOnEU=@vger.kernel.org X-Gm-Message-State: AOJu0Yw2141QOg/n4+IuLFCLRq2z1urGM6Mup4DJiPTJm08lJ0+bZxZb X/GjhWNjxUyiF/IVeqpGwKNCOSQSREHzvQ5Br/pwG4fllfzE3WwMC8rj4lYRRxH+6gavYPNgT1D 6dy3jQZW8PQ3bOvvTh+2p7Td41oq2UxEtaDNkFyPYRa2KB0po4O/m X-Gm-Gg: AY/fxX7Y+hy4rqOEu2/WiQF3zJrvDgUisnE7/+I9r87QqmWEyKshHHlFz8ZU/9OWyre xDONqpQf8m0owepEHqlGiDJI90QDYDG4t6qpEQK2YB9rqIBgP5Z4CbFeHFWdqB9HHPIwvRy5HTA ErRD10+OLUh9f7V2Wa/OAKNznDQaRpbFSrrNa7pK8i6uiSSPv+0/8cdUwb+c7jipRbJDuRtVrM6 i9AJDOKSiXOm+oZV9Ux7dX8gM83w6fEcPxuEOUaj6ZFtOIAdqPl+fo1LZfUx7vHF8WGsqpIm+kG ThIZph2b8IA46Mmnpve8qA9QxPV2KBSnoxjji1M4giPvioKnuUkJttlC1XEInIwwxwZv/AbYoq2 ZX+qX+cypoHw4g2JgoOXOuQYKVNo= X-Google-Smtp-Source: AGHT+IEwudaVuvqRly7l0IRDlqEmKMwk/cSbKTNqZ6zXG9WgrlcQ8cTYpnhco7okGJPfRp9k59cr+7f7Cz0/ X-Received: by 2002:a17:902:da4b:b0:2a0:d662:7283 with SMTP id d9443c01a7336-2a2f2216199mr286221655ad.3.1767401133671; Fri, 02 Jan 2026 16:45:33 -0800 (PST) Received: from c7-smtp-2023.dev.purestorage.com ([2620:125:9017:12:36:3:5:0]) by smtp-relay.gmail.com with ESMTPS id d9443c01a7336-2a2f3c64bd9sm8170985ad.7.2026.01.02.16.45.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Jan 2026 16:45:33 -0800 (PST) X-Relaying-Domain: purestorage.com Received: from dev-csander.dev.purestorage.com (dev-csander.dev.purestorage.com [10.49.34.222]) by c7-smtp-2023.dev.purestorage.com (Postfix) with ESMTP id 1AA0F341FB6; Fri, 2 Jan 2026 17:45:33 -0700 (MST) Received: by dev-csander.dev.purestorage.com (Postfix, from userid 1557716354) id 183DFE4426F; Fri, 2 Jan 2026 17:45:33 -0700 (MST) From: Caleb Sander Mateos To: Ming Lei , Jens Axboe , Shuah Khan Cc: linux-block@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, Stanley Zhang , Uday Shankar , Caleb Sander Mateos Subject: [PATCH v2 07/19] ublk: inline ublk_check_and_get_req() into ublk_user_copy() Date: Fri, 2 Jan 2026 17:45:17 -0700 Message-ID: <20260103004529.1582405-8-csander@purestorage.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20260103004529.1582405-1-csander@purestorage.com> References: <20260103004529.1582405-1-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" ublk_check_and_get_req() has a single callsite in ublk_user_copy(). It takes a ton of arguments in order to pass local variables from ublk_user_copy() to ublk_check_and_get_req() and vice versa. And more are about to be added. Combine the functions to reduce the argument passing noise. Signed-off-by: Caleb Sander Mateos Reviewed-by: Ming Lei --- drivers/block/ublk_drv.c | 51 ++++++++++++++-------------------------- 1 file changed, 18 insertions(+), 33 deletions(-) diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c index 73547ecf14cd..a4f95a0f1223 100644 --- a/drivers/block/ublk_drv.c +++ b/drivers/block/ublk_drv.c @@ -2682,70 +2682,55 @@ static inline bool ublk_check_ubuf_dir(const struct= request *req, return true; =20 return false; } =20 -static struct request *ublk_check_and_get_req(struct kiocb *iocb, - struct iov_iter *iter, size_t *off, int dir, - struct ublk_io **io) +static ssize_t +ublk_user_copy(struct kiocb *iocb, struct iov_iter *iter, int dir) { struct ublk_device *ub =3D iocb->ki_filp->private_data; struct ublk_queue *ubq; struct request *req; + struct ublk_io *io; size_t buf_off; u16 tag, q_id; + ssize_t ret; =20 if (!user_backed_iter(iter)) - return ERR_PTR(-EACCES); + return -EACCES; =20 if (ub->dev_info.state =3D=3D UBLK_S_DEV_DEAD) - return ERR_PTR(-EACCES); + return -EACCES; =20 tag =3D ublk_pos_to_tag(iocb->ki_pos); q_id =3D ublk_pos_to_hwq(iocb->ki_pos); buf_off =3D ublk_pos_to_buf_off(iocb->ki_pos); =20 if (q_id >=3D ub->dev_info.nr_hw_queues) - return ERR_PTR(-EINVAL); + return -EINVAL; =20 ubq =3D ublk_get_queue(ub, q_id); if (!ublk_dev_support_user_copy(ub)) - return ERR_PTR(-EACCES); + return -EACCES; =20 if (tag >=3D ub->dev_info.queue_depth) - return ERR_PTR(-EINVAL); + return -EINVAL; =20 - *io =3D &ubq->ios[tag]; - req =3D __ublk_check_and_get_req(ub, q_id, tag, *io, buf_off); + io =3D &ubq->ios[tag]; + req =3D __ublk_check_and_get_req(ub, q_id, tag, io, buf_off); if (!req) - return ERR_PTR(-EINVAL); - - if (!ublk_check_ubuf_dir(req, dir)) - goto fail; - - *off =3D buf_off; - return req; -fail: - ublk_put_req_ref(*io, req); - return ERR_PTR(-EACCES); -} - -static ssize_t -ublk_user_copy(struct kiocb *iocb, struct iov_iter *iter, int dir) -{ - struct request *req; - struct ublk_io *io; - size_t buf_off; - size_t ret; + return -EINVAL; =20 - req =3D ublk_check_and_get_req(iocb, iter, &buf_off, dir, &io); - if (IS_ERR(req)) - return PTR_ERR(req); + if (!ublk_check_ubuf_dir(req, dir)) { + ret =3D -EACCES; + goto out; + } =20 ret =3D ublk_copy_user_pages(req, buf_off, iter, dir); - ublk_put_req_ref(io, req); =20 +out: + ublk_put_req_ref(io, req); return ret; } =20 static ssize_t ublk_ch_read_iter(struct kiocb *iocb, struct iov_iter *to) { --=20 2.45.2