io_uring/nop.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <linux/kernel.h>
   3 #include <linux/errno.h>
   4 #include <linux/fs.h>
   5 #include <linux/file.h>
   6 #include <linux/io_uring.h>
   7
   8 #include <uapi/linux/io_uring.h>
   9
  10 #include "io_uring.h"
  11 #include "nop.h"
  12
  13 int io_nop_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
  14 {
  15         return 0;
  16 }
  17
  18 /*
  19  * IORING_OP_NOP just posts a completion event, nothing else.
  20  */
  21 int io_nop(struct io_kiocb *req, unsigned int issue_flags)
  22 {
  23         io_req_set_res(req, 0, 0);
  24         return IOU_OK;
  25 }