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-rw-r--r--drivers/md/linear.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/md/linear.h b/drivers/md/linear.h
new file mode 100644
index 00000000000..f38b9c586af
--- /dev/null
+++ b/drivers/md/linear.h
@@ -0,0 +1,31 @@
+#ifndef _LINEAR_H
+#define _LINEAR_H
+
+#include <linux/raid/md.h>
+
+struct dev_info {
+ mdk_rdev_t *rdev;
+ sector_t num_sectors;
+ sector_t start_sector;
+};
+
+typedef struct dev_info dev_info_t;
+
+struct linear_private_data
+{
+ struct linear_private_data *prev; /* earlier version */
+ dev_info_t **hash_table;
+ sector_t spacing;
+ sector_t array_sectors;
+ int sector_shift; /* shift before dividing
+ * by spacing
+ */
+ dev_info_t disks[0];
+};
+
+
+typedef struct linear_private_data linear_conf_t;
+
+#define mddev_to_conf(mddev) ((linear_conf_t *) mddev->private)
+
+#endif