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Thu, 11 Apr 2024 08:43:10 -0700 (PDT) Received: from localhost.localdomain ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id jc25-20020a056638891900b0047f14b7f6c0sm457056jab.5.2024.04.11.08.43.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Apr 2024 08:43:08 -0700 (PDT) From: Jens Axboe To: linux-kernel@vger.kernel.org Cc: Jens Axboe Subject: [PATCH 412/437] hv: convert to read/write iterators Date: Thu, 11 Apr 2024 09:19:12 -0600 Message-ID: <20240411153126.16201-413-axboe@kernel.dk> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240411153126.16201-1-axboe@kernel.dk> References: <20240411153126.16201-1-axboe@kernel.dk> 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" Signed-off-by: Jens Axboe --- drivers/hv/hv_utils_transport.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/hv/hv_utils_transport.c b/drivers/hv/hv_utils_transpor= t.c index 832885198643..fa93ac3800ae 100644 --- a/drivers/hv/hv_utils_transport.c +++ b/drivers/hv/hv_utils_transport.c @@ -24,13 +24,13 @@ static void hvt_reset(struct hvutil_transport *hvt) hvt->on_reset(); } =20 -static ssize_t hvt_op_read(struct file *file, char __user *buf, - size_t count, loff_t *ppos) +static ssize_t hvt_op_read(struct kiocb *iocb, struct iov_iter *to) { + size_t count =3D iov_iter_count(to); struct hvutil_transport *hvt; int ret; =20 - hvt =3D container_of(file->f_op, struct hvutil_transport, fops); + hvt =3D container_of(iocb->ki_filp->f_op, struct hvutil_transport, fops); =20 if (wait_event_interruptible(hvt->outmsg_q, hvt->outmsg_len > 0 || hvt->mode !=3D HVUTIL_TRANSPORT_CHARDEV)) @@ -53,7 +53,7 @@ static ssize_t hvt_op_read(struct file *file, char __user= *buf, goto out_unlock; } =20 - if (!copy_to_user(buf, hvt->outmsg, hvt->outmsg_len)) + if (copy_to_iter_full(hvt->outmsg, hvt->outmsg_len, to)) ret =3D hvt->outmsg_len; else ret =3D -EFAULT; @@ -71,16 +71,16 @@ static ssize_t hvt_op_read(struct file *file, char __us= er *buf, return ret; } =20 -static ssize_t hvt_op_write(struct file *file, const char __user *buf, - size_t count, loff_t *ppos) +static ssize_t hvt_op_write(struct kiocb *iocb, struct iov_iter *from) { + size_t count =3D iov_iter_count(from); struct hvutil_transport *hvt; u8 *inmsg; int ret; =20 - hvt =3D container_of(file->f_op, struct hvutil_transport, fops); + hvt =3D container_of(iocb->ki_filp->f_op, struct hvutil_transport, fops); =20 - inmsg =3D memdup_user(buf, count); + inmsg =3D iterdup(from, count); if (IS_ERR(inmsg)) return PTR_ERR(inmsg); =20 @@ -285,8 +285,8 @@ struct hvutil_transport *hvutil_transport_init(const ch= ar *name, hvt->mdev.name =3D name; =20 hvt->fops.owner =3D THIS_MODULE; - hvt->fops.read =3D hvt_op_read; - hvt->fops.write =3D hvt_op_write; + hvt->fops.read_iter =3D hvt_op_read; + hvt->fops.write_iter =3D hvt_op_write; hvt->fops.poll =3D hvt_op_poll; hvt->fops.open =3D hvt_op_open; hvt->fops.release =3D hvt_op_release; --=20 2.43.0