/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */#ifndef _UAPI_LINUX_BLKDEV_H#define _UAPI_LINUX_BLKDEV_H #include <linux/ioctl.h>#include <linux/types.h> /* * io_uring block file commands, see IORING_OP_URING_CMD. * It's a different number space from ioctl(), reuse the block's code 0x12. */#define BLOCK_URING_CMD_DISCARD			_IO(0x12, 0) #endif