typedef struct r10_private_data_s conf_t;
-/*
- * this is the only point in the RAID code where we violate
- * C type safety. mddev->private is an 'opaque' pointer.
- */
-#define mddev_to_conf(mddev) ((conf_t *) mddev->private)
-
/*
* this is our 'private' RAID10 bio.
*