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Thu, 11 Apr 2024 08:39:44 -0700 (PDT) Received: from localhost.localdomain ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id jc25-20020a056638891900b0047f14b7f6c0sm457056jab.5.2024.04.11.08.39.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Apr 2024 08:39:44 -0700 (PDT) From: Jens Axboe To: linux-kernel@vger.kernel.org Cc: Jens Axboe Subject: [PATCH 293/437] fs: convert fs_open to read/write iterators Date: Thu, 11 Apr 2024 09:17:13 -0600 Message-ID: <20240411153126.16201-294-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 --- fs/fsopen.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/fs/fsopen.c b/fs/fsopen.c index 6593ae518115..a68b7d4071b1 100644 --- a/fs/fsopen.c +++ b/fs/fsopen.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include "internal.h" #include "mount.h" @@ -21,12 +22,12 @@ /* * Allow the user to read back any error, warning or informational message= s. */ -static ssize_t fscontext_read(struct file *file, - char __user *_buf, size_t len, loff_t *pos) +static ssize_t fscontext_read(struct kiocb *iocb, struct iov_iter *to) { - struct fs_context *fc =3D file->private_data; + struct fs_context *fc =3D iocb->ki_filp->private_data; struct fc_log *log =3D fc->log.log; unsigned int logsize =3D ARRAY_SIZE(log->buffer); + size_t len =3D iov_iter_count(to); ssize_t ret; char *p; bool need_free; @@ -54,7 +55,7 @@ static ssize_t fscontext_read(struct file *file, if (n > len) goto err_free; ret =3D -EFAULT; - if (copy_to_user(_buf, p, n) !=3D 0) + if (!copy_to_iter_full(p, n, to) !=3D 0) goto err_free; ret =3D n; =20 @@ -76,7 +77,7 @@ static int fscontext_release(struct inode *inode, struct = file *file) } =20 const struct file_operations fscontext_fops =3D { - .read =3D fscontext_read, + .read_iter =3D fscontext_read, .release =3D fscontext_release, .llseek =3D no_llseek, }; --=20 2.43.0