io_uring/rw.h

   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);