#ifndef _MULTIPATH_H#define _MULTIPATH_H struct multipath_info {	struct md_rdev	*rdev;}; struct mpconf {	struct mddev			*mddev;	struct multipath_info	*multipaths;	int			raid_disks;	spinlock_t		device_lock;	struct list_head	retry_list; 	mempool_t		*pool;}; /* * 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 {	struct mddev			*mddev;	struct bio		*master_bio;	struct bio		bio;	int			path;	struct list_head	retry_list;};#endif