include/linux/raid/raid0.h

   1 #ifndef _RAID0_H
   2 #define _RAID0_H
   3
   4 #include <linux/raid/md.h>
   5
   6 struct strip_zone
   7 {
   8         unsigned long zone_offset;      /* Zone offset in md_dev */
   9         unsigned long dev_offset;       /* Zone offset in real dev */
  10         unsigned long size;             /* Zone size */
  11         int nb_dev;                     /* # of devices attached to the zone */
  12         mdk_rdev_t *dev[MD_SB_DISKS]; /* Devices attached to the zone */
  13 };
  14
  15 struct raid0_hash
  16 {
  17         struct strip_zone *zone0, *zone1;
  18 };
  19
  20 struct raid0_private_data
  21 {
  22         struct raid0_hash *hash_table; /* Dynamically allocated */
  23         struct strip_zone *strip_zone; /* This one too */
  24         int nr_strip_zones;
  25         struct strip_zone *smallest;
  26         int nr_zones;
  27 };
  28
  29 typedef struct raid0_private_data raid0_conf_t;
  30
  31 #define mddev_to_conf(mddev) ((raid0_conf_t *) mddev->private)
  32
  33 #endif