[PATCH v3 3/3] random: wire up fops->splice_{read,write}_iter()

From: Jason A. Donenfeld
Date: Thu May 19 2022 - 20:41:22 EST


From: Jens Axboe <axboe@xxxxxxxxx>

Now that random/urandom is using {read,write}_iter, we can wire it up to
using the generic splice handlers.

Fixes: 36e2c7421f02 ("fs: don't allow splice read/write without explicit ops")
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
[Jason: added the splice_write path.]
Signed-off-by: Jason A. Donenfeld <Jason@xxxxxxxxx>
---
drivers/char/random.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index a664e2b89ae0..90d779c5d1a1 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1417,6 +1417,8 @@ const struct file_operations random_fops = {
.compat_ioctl = compat_ptr_ioctl,
.fasync = random_fasync,
.llseek = noop_llseek,
+ .splice_read = generic_file_splice_read,
+ .splice_write = iter_file_splice_write,
};

const struct file_operations urandom_fops = {
@@ -1426,6 +1428,8 @@ const struct file_operations urandom_fops = {
.compat_ioctl = compat_ptr_ioctl,
.fasync = random_fasync,
.llseek = noop_llseek,
+ .splice_read = generic_file_splice_read,
+ .splice_write = iter_file_splice_write,
};


--
2.35.1