aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/md/raid0.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/md/raid0.h')
-rw-r--r--drivers/md/raid0.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/md/raid0.h b/drivers/md/raid0.h
new file mode 100644
index 000000000000..fd42aa87c391
--- /dev/null
+++ b/drivers/md/raid0.h
@@ -0,0 +1,30 @@
1#ifndef _RAID0_H
2#define _RAID0_H
3
4#include <linux/raid/md.h>
5
6struct strip_zone
7{
8 sector_t zone_start; /* Zone offset in md_dev (in sectors) */
9 sector_t dev_start; /* Zone offset in real dev (in sectors) */
10 sector_t sectors; /* Zone size in sectors */
11 int nb_dev; /* # of devices attached to the zone */
12 mdk_rdev_t **dev; /* Devices attached to the zone */
13};
14
15struct raid0_private_data
16{
17 struct strip_zone **hash_table; /* Table of indexes into strip_zone */
18 struct strip_zone *strip_zone;
19 mdk_rdev_t **devlist; /* lists of rdevs, pointed to by strip_zone->dev */
20 int nr_strip_zones;
21
22 sector_t spacing;
23 int sector_shift; /* shift this before divide by spacing */
24};
25
26typedef struct raid0_private_data raid0_conf_t;
27
28#define mddev_to_conf(mddev) ((raid0_conf_t *) mddev->private)
29
30#endif