io_uring: use right issue_flags for splice/tee

Pass right issue_flags into into io_file_get_fixed() instead of
IO_URING_F_UNLOCKED. It's probably not a problem at the moment but let's
do it safer.

Fixes: 6bf9c47 ("io_uring: defer file assignment")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/7d242daa9df5d776907686977cd29fbceb4a2d8d.1649862516.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

Author: isilence

fs/io_uring.c

@@ -4358,7 +4358,7 @@ static int io_tee(struct io_kiocb *req, unsigned int issue_flags)
 		return -EAGAIN;
 
 	if (sp->flags & SPLICE_F_FD_IN_FIXED)
-		in = io_file_get_fixed(req, sp->splice_fd_in, IO_URING_F_UNLOCKED);
+		in = io_file_get_fixed(req, sp->splice_fd_in, issue_flags);
 	else
 		in = io_file_get_normal(req, sp->splice_fd_in);
 	if (!in) {
@@ -4400,7 +4400,7 @@ static int io_splice(struct io_kiocb *req, unsigned int issue_flags)
 		return -EAGAIN;
 
 	if (sp->flags & SPLICE_F_FD_IN_FIXED)
-		in = io_file_get_fixed(req, sp->splice_fd_in, IO_URING_F_UNLOCKED);
+		in = io_file_get_fixed(req, sp->splice_fd_in, issue_flags);
 	else
 		in = io_file_get_normal(req, sp->splice_fd_in);
 	if (!in) {