linux-kernel - [PATCH 018/437] char/dtlk: convert to read/write iterators

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Message-ID: <20240411153126.16201-19-axboe@kernel.dk>
Date: Thu, 11 Apr 2024 09:12:38 -0600
From: Jens Axboe <axboe@...nel.dk>
To: linux-kernel@...r.kernel.org
Cc: Jens Axboe <axboe@...nel.dk>
Subject: [PATCH 018/437] char/dtlk: convert to read/write iterators

Signed-off-by: Jens Axboe <axboe@...nel.dk>
---
 drivers/char/dtlk.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/char/dtlk.c b/drivers/char/dtlk.c
index 6946c1cad9f6..60858db14c43 100644
--- a/drivers/char/dtlk.c
+++ b/drivers/char/dtlk.c
@@ -101,8 +101,8 @@ static long dtlk_ioctl(struct file *file,
 static const struct file_operations dtlk_fops =
 {
 	.owner		= THIS_MODULE,
-	.read		= dtlk_read,
-	.write		= dtlk_write,
+	.read_iter	= dtlk_read_iter,
+	.write_iter	= dtlk_write_iter,
 	.poll		= dtlk_poll,
 	.unlocked_ioctl	= dtlk_ioctl,
 	.open		= dtlk_open,
@@ -155,6 +155,7 @@ static ssize_t dtlk_read(struct file *file, char __user *buf,
 	TRACE_RET;
 	return -EAGAIN;
 }
+FOPS_READ_ITER_HELPER(dtlk_read);
 
 static ssize_t dtlk_write(struct file *file, const char __user *buf,
 			  size_t count, loff_t * ppos)
@@ -228,6 +229,7 @@ static ssize_t dtlk_write(struct file *file, const char __user *buf,
 	TRACE_RET;
 	return -EAGAIN;
 }
+FOPS_WRITE_ITER_HELPER(dtlk_write);
 
 static __poll_t dtlk_poll(struct file *file, poll_table * wait)
 {
-- 
2.43.0