drivers/md/raid0.h

   1 #ifndef _RAID0_H
   2 #define _RAID0_H
   3
   4 struct 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
  13 struct 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
  24 typedef struct raid0_private_data raid0_conf_t;
  25
  26 #define mddev_to_conf(mddev) ((raid0_conf_t *) mddev->private)
  27
  28 #endif