io_uring/rw.h

   1 // SPDX-License-Identifier: GPL-2.0
   2
   3 #include <linux/pagemap.h>
   4
   5 struct io_async_rw {
   6         size_t                          bytes_done;
   7         struct iov_iter                 iter;
   8         struct iov_iter_state           iter_state;
   9         struct iovec                    fast_iov;
  10         struct iovec                    *free_iovec;
  11         int                             free_iov_nr;
  12         struct wait_page_queue          wpq;
  13 };
  14
  15 int io_prep_read_fixed(struct io_kiocb *req, const struct io_uring_sqe *sqe);
  16 int io_prep_write_fixed(struct io_kiocb *req, const struct io_uring_sqe *sqe);
  17 int io_prep_readv(struct io_kiocb *req, const struct io_uring_sqe *sqe);
  18 int io_prep_writev(struct io_kiocb *req, const struct io_uring_sqe *sqe);
  19 int io_prep_read(struct io_kiocb *req, const struct io_uring_sqe *sqe);
  20 int io_prep_write(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_write(struct io_kiocb *req, unsigned int issue_flags);
  23 void io_readv_writev_cleanup(struct io_kiocb *req);
  24 void io_rw_fail(struct io_kiocb *req);
  25 void io_req_rw_complete(struct io_kiocb *req, struct io_tw_state *ts);
  26 int io_read_mshot_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
  27 int io_read_mshot(struct io_kiocb *req, unsigned int issue_flags);
  28 void io_rw_cache_free(const void *entry);