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Thu, 11 Apr 2024 08:41:22 -0700 (PDT) Received: from localhost.localdomain ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id jc25-20020a056638891900b0047f14b7f6c0sm457056jab.5.2024.04.11.08.41.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Apr 2024 08:41:20 -0700 (PDT) From: Jens Axboe To: linux-kernel@vger.kernel.org Cc: Jens Axboe Subject: [PATCH 350/437] s390: monwriter: convert to read/write iterators Date: Thu, 11 Apr 2024 09:18:10 -0600 Message-ID: <20240411153126.16201-351-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/s390/char/monwriter.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/s390/char/monwriter.c b/drivers/s390/char/monwriter.c index bc5193d81f9c..8baf04d05748 100644 --- a/drivers/s390/char/monwriter.c +++ b/drivers/s390/char/monwriter.c @@ -216,10 +216,10 @@ static int monwrite_close(struct inode *inode, struct= file *filp) return 0; } =20 -static ssize_t monwrite_write(struct file *filp, const char __user *data, - size_t count, loff_t *ppos) +static ssize_t monwrite_write(struct kiocb *iocb, struct iov_iter *from) { - struct mon_private *monpriv =3D filp->private_data; + struct mon_private *monpriv =3D iocb->ki_filp->private_data; + size_t count =3D iov_iter_count(from); size_t len, written; void *to; int rc; @@ -230,7 +230,7 @@ static ssize_t monwrite_write(struct file *filp, const = char __user *data, len =3D min(count - written, monpriv->hdr_to_read); to =3D (char *) &monpriv->hdr + sizeof(monpriv->hdr) - monpriv->hdr_to_read; - if (copy_from_user(to, data + written, len)) { + if (!copy_from_iter_full(to, len, from)) { rc =3D -EFAULT; goto out_error; } @@ -249,7 +249,7 @@ static ssize_t monwrite_write(struct file *filp, const = char __user *data, len =3D min(count - written, monpriv->data_to_read); to =3D monpriv->current_buf->data + monpriv->hdr.datalen - monpriv->data_to_read; - if (copy_from_user(to, data + written, len)) { + if (!copy_from_iter_full(to, len, from)) { rc =3D -EFAULT; goto out_error; } @@ -277,7 +277,7 @@ static const struct file_operations monwrite_fops =3D { .owner =3D THIS_MODULE, .open =3D &monwrite_open, .release =3D &monwrite_close, - .write =3D &monwrite_write, + .write_iter =3D &monwrite_write, .llseek =3D noop_llseek, }; =20 --=20 2.43.0