[net-next-2.6.git] / include / linux / blkpg.h

#ifndef _LINUX_BLKPG_H
#define _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

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