diff options
Diffstat (limited to 'io_uring/rw.h')
| -rw-r--r-- | io_uring/rw.h | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/io_uring/rw.h b/io_uring/rw.h index 3f432dc75441..eaa59bd64870 100644 --- a/io_uring/rw.h +++ b/io_uring/rw.h @@ -2,14 +2,31 @@ #include <linux/pagemap.h> +struct io_meta_state { + u32 seed; + struct iov_iter_state iter_meta; +}; + struct io_async_rw { size_t bytes_done; - struct iov_iter iter; - struct iov_iter_state iter_state; - struct iovec fast_iov; struct iovec *free_iovec; - int free_iov_nr; - struct wait_page_queue wpq; + struct_group(clear, + struct iov_iter iter; + struct iov_iter_state iter_state; + struct iovec fast_iov; + int free_iov_nr; + /* + * wpq is for buffered io, while meta fields are used with + * direct io + */ + union { + struct wait_page_queue wpq; + struct { + struct uio_meta meta; + struct io_meta_state meta_state; + }; + }; + ); }; int io_prep_read_fixed(struct io_kiocb *req, const struct io_uring_sqe *sqe); |