commit 6b19b766e8f077f29cdb47da5003469a85bbfb9c
author Jens Axboe <axboe@kernel.dk> Thu Oct 21 09:22:35 2021 -0600
committer Jens Axboe <axboe@kernel.dk> Mon Oct 25 10:36:24 2021 -0600
tree 8ae1c68714c880a644ac05094491b74d86e9f590
parent 4c3d8accdce26afa8089609593aa92965b500f72

fs: get rid of the res2 iocb->ki_complete argument

The second argument was only used by the USB gadget code, yet everyone
pays the overhead of passing a zero to be passed into aio, where it
ends up being part of the aio res2 value.

Now that everybody is passing in zero, kill off the extra argument.

Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

fs/io_uring.c

diff --git a/fs/io_uring.c b/fs/io_uring.c
index d4631a5..edf2940 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -2689,7 +2689,7 @@ static void __io_complete_rw(struct io_kiocb *req, long res, long res2,
 	__io_req_complete(req, issue_flags, req->result, io_put_rw_kbuf(req));
 }
 
-static void io_complete_rw(struct kiocb *kiocb, long res, long res2)
+static void io_complete_rw(struct kiocb *kiocb, long res)
 {
 	struct io_kiocb *req = container_of(kiocb, struct io_kiocb, rw.kiocb);
 
@@ -2700,7 +2700,7 @@ static void io_complete_rw(struct kiocb *kiocb, long res, long res2)
 	io_req_task_work_add(req);
 }
 
-static void io_complete_rw_iopoll(struct kiocb *kiocb, long res, long res2)
+static void io_complete_rw_iopoll(struct kiocb *kiocb, long res)
 {
 	struct io_kiocb *req = container_of(kiocb, struct io_kiocb, rw.kiocb);
 
@@ -2913,7 +2913,7 @@ static inline void io_rw_done(struct kiocb *kiocb, ssize_t ret)
 		ret = -EINTR;
 		fallthrough;
 	default:
-		kiocb->ki_complete(kiocb, ret, 0);
+		kiocb->ki_complete(kiocb, ret);
 	}
 }