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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef __LINUX_BLKPG_H
#define __LINUX_BLKPG_H

#include <linux/ioctl.h>

#define BLKPG _IO(0x12, 105)

/* The argument structure */
struct blkpg_ioctl_arg {
	int op;
	int flags;
	int datalen;
	void *data;
};

/* The subfunctions (for the op field) */
#define BLKPG_ADD_PARTITION    1
#define BLKPG_DEL_PARTITION    2
#define BLKPG_RESIZE_PARTITION 3

/* Sizes of name fields. Unused at present. */
#define BLKPG_DEVNAMELTH 64
#define BLKPG_VOLNAMELTH 64

/* The data structure for ADD_PARTITION and DEL_PARTITION */
struct blkpg_partition {
	long long start;		/* starting offset in bytes */
	long long length;		/* length in bytes */
	int pno;			/* partition number */
	char devname[BLKPG_DEVNAMELTH]; /* unused / ignored */
	char volname[BLKPG_VOLNAMELTH]; /* unused / ignore */
};

#endif /* __LINUX_BLKPG_H */