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Thu, 11 Apr 2024 08:34:22 -0700 (PDT) Received: from localhost.localdomain ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id jc25-20020a056638891900b0047f14b7f6c0sm457056jab.5.2024.04.11.08.34.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Apr 2024 08:34:20 -0700 (PDT) From: Jens Axboe To: linux-kernel@vger.kernel.org Cc: Jens Axboe Subject: [PATCH 094/437] lockdown: convert to read/write iterators Date: Thu, 11 Apr 2024 09:13:54 -0600 Message-ID: <20240411153126.16201-95-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 --- security/lockdown/lockdown.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/security/lockdown/lockdown.c b/security/lockdown/lockdown.c index cd84d8ea1dfb..ea208d3251e6 100644 --- a/security/lockdown/lockdown.c +++ b/security/lockdown/lockdown.c @@ -93,8 +93,7 @@ static int __init lockdown_lsm_init(void) return 0; } =20 -static ssize_t lockdown_read(struct file *filp, char __user *buf, size_t c= ount, - loff_t *ppos) +static ssize_t lockdown_read(struct kiocb *iocb, struct iov_iter *to) { char temp[80]; int i, offset =3D 0; @@ -116,7 +115,7 @@ static ssize_t lockdown_read(struct file *filp, char __= user *buf, size_t count, if (offset > 0) temp[offset-1] =3D '\n'; =20 - return simple_read_from_buffer(buf, count, ppos, temp, strlen(temp)); + return simple_copy_to_iter(temp, &iocb->ki_pos, strlen(temp), to); } =20 static ssize_t lockdown_write(struct file *file, const char __user *buf, @@ -146,10 +145,11 @@ static ssize_t lockdown_write(struct file *file, cons= t char __user *buf, kfree(state); return err ? err : n; } +FOPS_WRITE_ITER_HELPER(lockdown_write); =20 static const struct file_operations lockdown_ops =3D { - .read =3D lockdown_read, - .write =3D lockdown_write, + .read_iter =3D lockdown_read, + .write_iter =3D lockdown_write_iter, }; =20 static int __init lockdown_secfs_init(void) --=20 2.43.0