[PATCH 4/5] io_uring/epoll: switch to using do_epoll_ctl_file() interface

[Jens Axboe <axboe@kernel.dk>]

No functional changes in this patch.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 io_uring/epoll.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/io_uring/epoll.c b/io_uring/epoll.c
index 8d4610246ba0..59cd4f009648 100644
--- a/io_uring/epoll.c
+++ b/io_uring/epoll.c
@@ -51,10 +51,21 @@ int io_epoll_ctl_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
 int io_epoll_ctl(struct io_kiocb *req, unsigned int issue_flags)
 {
 	struct io_epoll *ie = io_kiocb_to_cmd(req, struct io_epoll);
-	int ret;
 	bool force_nonblock = issue_flags & IO_URING_F_NONBLOCK;
+	struct epoll_filefd efd;
+	int ret;
+
+	CLASS(fd, f)(ie->epfd);
+	if (fd_empty(f))
+		return -EBADF;
+
+	CLASS(fd, tf)(ie->fd);
+	if (fd_empty(tf))
+		return -EBADF;
 
-	ret = do_epoll_ctl(ie->epfd, ie->op, ie->fd, &ie->event, force_nonblock);
+	efd.file = fd_file(tf);
+	efd.fd = ie->fd;
+	ret = do_epoll_ctl_file(fd_file(f), ie->op, &efd, &ie->event, force_nonblock);
 	if (force_nonblock && ret == -EAGAIN)
 		return -EAGAIN;
 
-- 
2.53.0