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
33