path: root/drivers/md/raid0.h

#ifndef _RAID0_H
#define _RAID0_H

struct strip_zone
{
	sector_t zone_start;	/* Zone offset in md_dev (in sectors) */
	sector_t dev_start;	/* Zone offset in real dev (in sectors) */
	sector_t sectors;	/* Zone size in sectors */
	int nb_dev;		/* # of devices attached to the zone */
	mdk_rdev_t **dev;	/* Devices attached to the zone */
};

struct raid0_private_data
{
	struct strip_zone **hash_table; /* Table of indexes into strip_zone */
	struct strip_zone *strip_zone;
	mdk_rdev_t **devlist; /* lists of rdevs, pointed to by strip_zone->dev */
	int nr_strip_zones;

	sector_t spacing;
	int sector_shift; /* shift this before divide by spacing */
};

typedef struct raid0_private_data raid0_conf_t;

#define mddev_to_conf(mddev) ((raid0_conf_t *) mddev->private)

#endif