1#ifndef _MULTIPATH_H
 2#define _MULTIPATH_H
 3
 4struct multipath_info {
 5	mdk_rdev_t	*rdev;
 6};
 7
 8struct multipath_private_data {
 9	mddev_t			*mddev;
10	struct multipath_info	*multipaths;
11	int			raid_disks;
12	spinlock_t		device_lock;
13	struct list_head	retry_list;
14
15	mempool_t		*pool;
16};
17
18typedef struct multipath_private_data multipath_conf_t;
19
20/*
21 * this is our 'private' 'collective' MULTIPATH buffer head.
22 * it contains information about what kind of IO operations were started
23 * for this MULTIPATH operation, and about their status:
24 */
25
26struct multipath_bh {
27	mddev_t			*mddev;
28	struct bio		*master_bio;
29	struct bio		bio;
30	int			path;
31	struct list_head	retry_list;
32};
33#endif