#ifndef _MULTIPATH_H

#define _MULTIPATH_H

#include <linux/raid/md.h>

struct multipath_info {

	mdk_rdev_t	*rdev;

};

struct multipath_private_data {

	mddev_t			*mddev;

	struct multipath_info	*multipaths;

	int			raid_disks;

	int			working_disks;

	spinlock_t		device_lock;

	struct list_head	retry_list;

	mempool_t		*pool;

};

typedef struct multipath_private_data multipath_conf_t;

/*

 * this is the only point in the RAID code where we violate

 * C type safety. mddev->private is an 'opaque' pointer.

 */

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

/*

 * this is our 'private' 'collective' MULTIPATH buffer head.

 * it contains information about what kind of IO operations were started

 * for this MULTIPATH operation, and about their status:

 */

struct multipath_bh {

	mddev_t			*mddev;

	struct bio		*master_bio;

	struct bio		bio;

	int			path;

	struct list_head	retry_list;

};

#endif