1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _MULTIPATH_H
 3#define _MULTIPATH_H
 4
 5struct multipath_info {
 6	struct md_rdev	*rdev;
 7};
 8
 9struct mpconf {
10	struct mddev			*mddev;
11	struct multipath_info	*multipaths;
12	int			raid_disks;
13	spinlock_t		device_lock;
14	struct list_head	retry_list;
15
16	mempool_t		pool;
17};
18
19/*
20 * this is our 'private' 'collective' MULTIPATH buffer head.
21 * it contains information about what kind of IO operations were started
22 * for this MULTIPATH operation, and about their status:
23 */
24
25struct multipath_bh {
26	struct mddev			*mddev;
27	struct bio		*master_bio;
28	struct bio		bio;
29	int			path;
30	struct list_head	retry_list;
31};
32#endif