include/linux/crush/mapper.h


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

#ifndef CEPH_CRUSH_MAPPER_H
#define CEPH_CRUSH_MAPPER_H

/*
 * CRUSH functions for find rules and then mapping an input to an
 * output set.
 *
 * LGPL2
 */

#include "crush.h"

extern int crush_find_rule(const struct crush_map *map, int ruleset, int type, int size);
extern int crush_do_rule(const struct crush_map *map,
			 int ruleno,
			 int x, int *result, int result_max,
			 const __u32 *weights, int weight_max,
			 int *scratch);

#endif