GeezerVison is showing codebrowser.dev — blkdev.h source code [linux/include/uapi/linux/blkdev.h] - Codebrowser

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
15

blkdev.h