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-rw-r--r--drivers/md/raid0.h28
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
4struct 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
13struct 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
24typedef struct raid0_private_data raid0_conf_t;
25
26#define mddev_to_conf(mddev) ((raid0_conf_t *) mddev->private)
27
28#endif