diff options
Diffstat (limited to 'drivers/md/raid0.h')
-rw-r--r-- | drivers/md/raid0.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/md/raid0.h b/drivers/md/raid0.h new file mode 100644 index 000000000000..824b12eb1d4f --- /dev/null +++ b/drivers/md/raid0.h | |||
@@ -0,0 +1,28 @@ | |||
1 | #ifndef _RAID0_H | ||
2 | #define _RAID0_H | ||
3 | |||
4 | struct strip_zone | ||
5 | { | ||
6 | sector_t zone_start; /* Zone offset in md_dev (in sectors) */ | ||
7 | sector_t dev_start; /* Zone offset in real dev (in sectors) */ | ||
8 | sector_t sectors; /* Zone size in sectors */ | ||
9 | int nb_dev; /* # of devices attached to the zone */ | ||
10 | mdk_rdev_t **dev; /* Devices attached to the zone */ | ||
11 | }; | ||
12 | |||
13 | struct raid0_private_data | ||
14 | { | ||
15 | struct strip_zone **hash_table; /* Table of indexes into strip_zone */ | ||
16 | struct strip_zone *strip_zone; | ||
17 | mdk_rdev_t **devlist; /* lists of rdevs, pointed to by strip_zone->dev */ | ||
18 | int nr_strip_zones; | ||
19 | |||
20 | sector_t spacing; | ||
21 | int sector_shift; /* shift this before divide by spacing */ | ||
22 | }; | ||
23 | |||
24 | typedef struct raid0_private_data raid0_conf_t; | ||
25 | |||
26 | #define mddev_to_conf(mddev) ((raid0_conf_t *) mddev->private) | ||
27 | |||
28 | #endif | ||