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-rw-r--r--include/linux/raid/raid0.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/include/linux/raid/raid0.h b/include/linux/raid/raid0.h
new file mode 100644
index 000000000000..1b2dda035f8e
--- /dev/null
+++ b/include/linux/raid/raid0.h
@@ -0,0 +1,30 @@
+#ifndef _RAID0_H
+#define _RAID0_H
+
+#include <linux/raid/md.h>
+
+struct strip_zone
+{
+ sector_t zone_offset; /* Zone offset in md_dev */
+ sector_t dev_offset; /* Zone offset in real dev */
+ sector_t size; /* Zone size */
+ int nb_dev; /* # of devices attached to the zone */
+ mdk_rdev_t **dev; /* Devices attached to the zone */
+};
+
+struct raid0_private_data
+{
+ struct strip_zone **hash_table; /* Table of indexes into strip_zone */
+ struct strip_zone *strip_zone;
+ mdk_rdev_t **devlist; /* lists of rdevs, pointed to by strip_zone->dev */
+ int nr_strip_zones;
+
+ sector_t hash_spacing;
+ int preshift; /* shift this before divide by hash_spacing */
+};
+
+typedef struct raid0_private_data raid0_conf_t;
+
+#define mddev_to_conf(mddev) ((raid0_conf_t *) mddev->private)
+
+#endif