mapper.c File Reference

#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <linux/crush/crush.h>
#include <linux/crush/hash.h>
#include <linux/crush/mapper.h>

Go to the source code of this file.

Macros
#define	BUG_ON(x)   assert(!(x))
#define	dprintk(args...)   /* printf(args) */
#define	kmalloc(x, f)   malloc(x)
#define	kfree(x)   free(x)

Functions
int	crush_find_rule (const struct crush_map *map, int ruleset, int type, int size)
int	crush_do_rule (const struct crush_map *map, int ruleno, int x, int *result, int result_max, const __u32 *weight)

Macro Definition Documentation

#define BUG_ON

(

x

)

assert(!(x))

Definition at line 15 of file mapper.c.

#define dprintk

(

args...

)

/* printf(args) */

Definition at line 16 of file mapper.c.

#define kfree

(

x

)

free(x)

Definition at line 18 of file mapper.c.

#define kmalloc	(		x,
			f
	)		malloc(x)

Definition at line 17 of file mapper.c.

Function Documentation

int crush_do_rule	(	const struct crush_map *	map,
		int	ruleno,
		int	x,
		int *	result,
		int	result_max,
		const __u32 *	weight
	)

crush_do_rule - calculate a mapping with the given input and rule : the crush_map : the rule id : hash input

Returns

: pointer to result vector : maximum result size

Definition at line 469 of file mapper.c.

int crush_find_rule	(	const struct crush_map *	map,
		int	ruleset,
		int	type,
		int	size
	)

crush_find_rule - find a crush_rule id for a given ruleset, type, and size. : the crush_map : the storage ruleset id (user defined) : storage ruleset type (user defined) : output set size

Definition at line 36 of file mapper.c.