diff options
Diffstat (limited to 'kernel/drivers/md/multipath.h')
| -rw-r--r-- | kernel/drivers/md/multipath.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/kernel/drivers/md/multipath.h b/kernel/drivers/md/multipath.h new file mode 100644 index 000000000..717c60f62 --- /dev/null +++ b/kernel/drivers/md/multipath.h @@ -0,0 +1,31 @@ +#ifndef _MULTIPATH_H +#define _MULTIPATH_H + +struct multipath_info { + struct md_rdev *rdev; +}; + +struct mpconf { + struct mddev *mddev; + struct multipath_info *multipaths; + int raid_disks; + spinlock_t device_lock; + struct list_head retry_list; + + mempool_t *pool; +}; + +/* + * this is our 'private' 'collective' MULTIPATH buffer head. + * it contains information about what kind of IO operations were started + * for this MULTIPATH operation, and about their status: + */ + +struct multipath_bh { + struct mddev *mddev; + struct bio *master_bio; + struct bio bio; + int path; + struct list_head retry_list; +}; +#endif |