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Thu, 11 Apr 2024 08:41:37 -0700 (PDT) Received: from localhost.localdomain ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id jc25-20020a056638891900b0047f14b7f6c0sm457056jab.5.2024.04.11.08.41.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Apr 2024 08:41:35 -0700 (PDT) From: Jens Axboe To: linux-kernel@vger.kernel.org Cc: Jens Axboe Subject: [PATCH 356/437] arch/sparc: convert to read/write iterators Date: Thu, 11 Apr 2024 09:18:16 -0600 Message-ID: <20240411153126.16201-357-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 --- arch/sparc/kernel/mdesc.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/arch/sparc/kernel/mdesc.c b/arch/sparc/kernel/mdesc.c index 30f171b7b00c..bcc3afbc8760 100644 --- a/arch/sparc/kernel/mdesc.c +++ b/arch/sparc/kernel/mdesc.c @@ -1261,24 +1261,24 @@ static int mdesc_open(struct inode *inode, struct f= ile *file) return 0; } =20 -static ssize_t mdesc_read(struct file *file, char __user *buf, - size_t len, loff_t *offp) +static ssize_t mdesc_read(struct kiocb *iocb, struct iov_iter *to) { - struct mdesc_handle *hp =3D file->private_data; + struct mdesc_handle *hp =3D iocb->ki_filp->private_data; + size_t len =3D iov_iter_count(to); unsigned char *mdesc; int bytes_left, count =3D len; =20 - if (*offp >=3D hp->handle_size) + if (iocb->ki_pos >=3D hp->handle_size) return 0; =20 - bytes_left =3D hp->handle_size - *offp; + bytes_left =3D hp->handle_size - iocb->ki_pos; if (count > bytes_left) count =3D bytes_left; =20 mdesc =3D (unsigned char *)&hp->mdesc; - mdesc +=3D *offp; - if (!copy_to_user(buf, mdesc, count)) { - *offp +=3D count; + mdesc +=3D iocb->ki_pos; + if (!copy_to_iter_full(mdesc, count, to)) { + iocb->ki_pos +=3D count; return count; } else { return -EFAULT; @@ -1303,7 +1303,7 @@ static int mdesc_close(struct inode *inode, struct fi= le *file) =20 static const struct file_operations mdesc_fops =3D { .open =3D mdesc_open, - .read =3D mdesc_read, + .read_iter =3D mdesc_read, .llseek =3D mdesc_llseek, .release =3D mdesc_close, .owner =3D THIS_MODULE, --=20 2.43.0