[PATCH 4/6] io_uring: unify calling convention for async prep handling

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Make them consistent in preparation for defining a req async prep
handler. The readv/writev requests share a prep handler, move it one
level down so the initial one is consistent with the others.

Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
---
 fs/io_uring.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index d2c99176b11a..408265a03563 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -4176,6 +4176,16 @@ static inline int io_rw_prep_async(struct io_kiocb *req, int rw)
 	return 0;
 }
 
+static int io_readv_prep_async(struct io_kiocb *req)
+{
+	return io_rw_prep_async(req, READ);
+}
+
+static int io_writev_prep_async(struct io_kiocb *req)
+{
+	return io_rw_prep_async(req, READ);
+}
+
 /*
  * This is our waitqueue callback handler, registered through __folio_lock_async()
  * when we initially tried to do the IO with the iocb armed our waitqueue.
@@ -8136,9 +8146,9 @@ static int io_req_prep_async(struct io_kiocb *req)
 
 	switch (req->opcode) {
 	case IORING_OP_READV:
-		return io_rw_prep_async(req, READ);
+		return io_readv_prep_async(req);
 	case IORING_OP_WRITEV:
-		return io_rw_prep_async(req, WRITE);
+		return io_writev_prep_async(req);
 	case IORING_OP_SENDMSG:
 		return io_sendmsg_prep_async(req);
 	case IORING_OP_RECVMSG:
-- 
2.35.1




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