include/uapi/linux/blkdev.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 #ifndef _UAPI_LINUX_BLKDEV_H
   3 #define _UAPI_LINUX_BLKDEV_H
   4
   5 #include <linux/ioctl.h>
   6 #include <linux/types.h>
   7
   8 /*
   9  * io_uring block file commands, see IORING_OP_URING_CMD.
  10  * It's a different number space from ioctl(), reuse the block's code 0x12.
  11  */
  12 #define BLOCK_URING_CMD_DISCARD                 _IO(0x12, 0)
  13
  14 #endif