1#ifndef _MULTIPATH_H
 2#define _MULTIPATH_H
 3
 4struct multipath_info {
 5	struct md_rdev	*rdev;
 6};
 7
 8struct mpconf {
 9	struct mddev			*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
18/*
19 * this is our 'private' 'collective' MULTIPATH buffer head.
20 * it contains information about what kind of IO operations were started
21 * for this MULTIPATH operation, and about their status:
22 */
23
24struct multipath_bh {
25	struct mddev			*mddev;
26	struct bio		*master_bio;
27	struct bio		bio;
28	int			path;
29	struct list_head	retry_list;
30};
31#endif