[PATCH 7/9] io_uring/net: add generic multishot retry helper

[Jens Axboe <axboe@kernel.dk>]

This is just moving io_recv_prep_retry() higher up so we can use it
for sends as well, and renaming it to be generically useful for both
sends and receives.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 io_uring/net.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/io_uring/net.c b/io_uring/net.c
index c73e4cd246ab..9ef11883a34a 100644
--- a/io_uring/net.c
+++ b/io_uring/net.c
@@ -204,6 +204,16 @@ static int io_setup_async_msg(struct io_kiocb *req,
 	return -EAGAIN;
 }
 
+static inline void io_mshot_prep_retry(struct io_kiocb *req)
+{
+	struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
+
+	req->flags &= ~REQ_F_BL_EMPTY;
+	sr->done_io = 0;
+	sr->len = 0; /* get from the provided buffer */
+	req->buf_index = sr->buf_group;
+}
+
 static bool io_recvmsg_multishot_overflow(struct io_async_msghdr *iomsg)
 {
 	int hdr;
@@ -654,15 +664,6 @@ int io_recvmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 	return 0;
 }
 
-static inline void io_recv_prep_retry(struct io_kiocb *req)
-{
-	struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
-
-	sr->done_io = 0;
-	sr->len = 0; /* get from the provided buffer */
-	req->buf_index = sr->buf_group;
-}
-
 /*
  * Finishes io_recv and io_recvmsg.
  *
@@ -697,7 +698,7 @@ static inline bool io_recv_finish(struct io_kiocb *req, int *ret,
 		struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg);
 		int mshot_retry_ret = IOU_ISSUE_SKIP_COMPLETE;
 
-		io_recv_prep_retry(req);
+		io_mshot_prep_retry(req);
 
 		/* buffer list now empty, no point trying again */
 		if (req->flags & REQ_F_BL_EMPTY)
-- 
2.43.0