[mirror_ubuntu-bionic-kernel.git] / include / uapi / linux / blkpg.h

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

/*
 * Partition table and disk geometry handling
 *
 * A single ioctl with lots of subfunctions:
 *
 * Device number stuff:
 *    get_whole_disk()		(given the device number of a partition,
 *                               find the device number of the encompassing disk)
 *    get_all_partitions()	(given the device number of a disk, return the
 *				 device numbers of all its known partitions)
 *
 * Partition stuff:
 *    add_partition()
 *    delete_partition()
 *    test_partition_in_use()	(also for test_disk_in_use)
 *
 * Geometry stuff:
 *    get_geometry()
 *    set_geometry()
 *    get_bios_drivedata()
 *
 * For today, only the partition stuff - aeb, 990515
 */
#include <linux/compiler.h>
#include <linux/ioctl.h>

#define BLKPG      _IO(0x12,105)

/* The argument structure */
struct blkpg_ioctl_arg {
        int op;
        int flags;
        int datalen;
        void __user *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];	/* partition name, like sda5 or c0d1p2,
					   to be used in kernel messages */
	char volname[BLKPG_VOLNAMELTH];	/* volume label */
};

#endif /* _UAPI__LINUX_BLKPG_H */
Commit	Line	Data
6f52b16c	1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
53bb724f BN	2	#ifndef _UAPI__LINUX_BLKPG_H
53bb724f BN	3	#define _UAPI__LINUX_BLKPG_H
1da177e4 LT	4
	5	/*
	6	* Partition table and disk geometry handling
	7	*
	8	* A single ioctl with lots of subfunctions:
	9	*
	10	* Device number stuff:
	11	* get_whole_disk() (given the device number of a partition,
	12	* find the device number of the encompassing disk)
	13	* get_all_partitions() (given the device number of a disk, return the
	14	* device numbers of all its known partitions)
	15	*
	16	* Partition stuff:
	17	* add_partition()
	18	* delete_partition()
	19	* test_partition_in_use() (also for test_disk_in_use)
	20	*
	21	* Geometry stuff:
	22	* get_geometry()
	23	* set_geometry()
	24	* get_bios_drivedata()
	25	*
	26	* For today, only the partition stuff - aeb, 990515
	27	*/
acc429a5	28	#include <linux/compiler.h>
1da177e4 LT	29	#include <linux/ioctl.h>
	30
	31	#define BLKPG _IO(0x12,105)
	32
	33	/* The argument structure */
	34	struct blkpg_ioctl_arg {
	35	int op;
	36	int flags;
	37	int datalen;
	38	void __user *data;
	39	};
	40
	41	/* The subfunctions (for the op field) */
	42	#define BLKPG_ADD_PARTITION 1
	43	#define BLKPG_DEL_PARTITION 2
c83f6bf9	44	#define BLKPG_RESIZE_PARTITION 3
1da177e4 LT	45
	46	/* Sizes of name fields. Unused at present. */
	47	#define BLKPG_DEVNAMELTH 64
	48	#define BLKPG_VOLNAMELTH 64
	49
	50	/* The data structure for ADD_PARTITION and DEL_PARTITION */
	51	struct blkpg_partition {
	52	long long start; /* starting offset in bytes */
	53	long long length; /* length in bytes */
	54	int pno; /* partition number */
	55	char devname[BLKPG_DEVNAMELTH]; /* partition name, like sda5 or c0d1p2,
	56	to be used in kernel messages */
	57	char volname[BLKPG_VOLNAMELTH]; /* volume label */
	58	};
	59
53bb724f	60	#endif /* _UAPI__LINUX_BLKPG_H */