1 // SPDX-License-Identifier: GPL-2.0 2 3 #include <linux/pagemap.h> 4 5 struct io_rw_state { 6 struct iov_iter iter; 7 struct iov_iter_state iter_state; 8 struct iovec fast_iov[UIO_FASTIOV]; 9 }; 10 11 struct io_async_rw { 12 struct io_rw_state s; 13 const struct iovec *free_iovec; 14 size_t bytes_done; 15 struct wait_page_queue wpq; 16 }; 17 18 int io_prep_rw(struct io_kiocb *req, const struct io_uring_sqe *sqe); 19 int io_prep_rwv(struct io_kiocb *req, const struct io_uring_sqe *sqe); 20 int io_prep_rw_fixed(struct io_kiocb *req, const struct io_uring_sqe *sqe); 21 int io_read(struct io_kiocb *req, unsigned int issue_flags); 22 int io_readv_prep_async(struct io_kiocb *req); 23 int io_write(struct io_kiocb *req, unsigned int issue_flags); 24 int io_writev_prep_async(struct io_kiocb *req); 25 void io_readv_writev_cleanup(struct io_kiocb *req); 26 void io_rw_fail(struct io_kiocb *req); 27 void io_req_rw_complete(struct io_kiocb *req, struct io_tw_state *ts); 28 int io_read_mshot_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe); 29 int io_read_mshot(struct io_kiocb *req, unsigned int issue_flags); 30