4 #include <linux/raid/md.h>
6 struct multipath_info {
10 struct multipath_private_data {
12 struct multipath_info *multipaths;
15 spinlock_t device_lock;
20 typedef struct multipath_private_data multipath_conf_t;
23 * this is the only point in the RAID code where we violate
24 * C type safety. mddev->private is an 'opaque' pointer.
26 #define mddev_to_conf(mddev) ((multipath_conf_t *) mddev->private)
29 * this is our 'private' 'collective' MULTIPATH buffer head.
30 * it contains information about what kind of IO operations were started
31 * for this MULTIPATH operation, and about their status:
36 struct bio *master_bio;
39 struct multipath_bh *next_mp; /* next for retry */