io_uring/rw: use cached file rather than req->file

In io_rw_init_file(), req->file is cached in file, yet the former is
still being used when checking for O_DIRECT. As this is post setting
the kiocb flags, the compiler has to reload req->file. Just use the
locally cached file instead.

Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/io_uring/rw.c b/io_uring/rw.c
index 3bdb9914e6734093011c560fe89487aa7f62a69a..046f76a71b9c187d897dcbe5d82dc848f54101aa 100644 (file)
--- a/io_uring/rw.c
+++ b/io_uring/rw.c
@@ -900,7 +900,7 @@ static int io_rw_init_file(struct io_kiocb *req, fmode_t mode, int rw_type)
                 * We have a union of meta fields with wpq used for buffered-io
                 * in io_async_rw, so fail it here.
                 */
-               if (!(req->file->f_flags & O_DIRECT))
+               if (!(file->f_flags & O_DIRECT))
                        return -EOPNOTSUPP;
                kiocb->ki_flags |= IOCB_HAS_METADATA;
                kiocb->private = &io->meta;