include/linux/crush/mapper.h

   1 #ifndef CEPH_CRUSH_MAPPER_H
   2 #define CEPH_CRUSH_MAPPER_H
   3
   4 /*
   5  * CRUSH functions for find rules and then mapping an input to an
   6  * output set.
   7  *
   8  * LGPL2
   9  */
  10
  11 #include <linux/crush/crush.h>
  12
  13 extern int crush_find_rule(const struct crush_map *map, int ruleset, int type, int size);
  14 extern int crush_do_rule(const struct crush_map *map,
  15                          int ruleno,
  16                          int x, int *result, int result_max,
  17                          const __u32 *weights, int weight_max,
  18                          int *scratch);
  19
  20 #endif