crush.h File Reference

#include <linux/types.h>

Go to the source code of this file.

Data Structures
struct	crush_rule_step
struct	crush_rule_mask
struct	crush_rule
struct	crush_bucket
struct	crush_bucket_uniform
struct	crush_bucket_list
struct	crush_bucket_tree
struct	crush_bucket_straw
struct	crush_map

Macros
#define	CRUSH_MAGIC   0x00010000ul /* for detecting algorithm revisions */
#define	CRUSH_MAX_DEPTH   10 /* max crush hierarchy depth */
#define	CRUSH_MAX_SET   10 /* max size of a mapping result */
#define	CRUSH_CHOOSE_N   0
#define	CRUSH_CHOOSE_N_MINUS(x)   (-(x))
#define	crush_rule_size(len)

Enumerations
enum	{   CRUSH_RULE_NOOP = 0, CRUSH_RULE_TAKE = 1, CRUSH_RULE_CHOOSE_FIRSTN = 2, CRUSH_RULE_CHOOSE_INDEP = 3,   CRUSH_RULE_EMIT = 4, CRUSH_RULE_CHOOSE_LEAF_FIRSTN = 6, CRUSH_RULE_CHOOSE_LEAF_INDEP = 7 }
enum	{ CRUSH_BUCKET_UNIFORM = 1, CRUSH_BUCKET_LIST = 2, CRUSH_BUCKET_TREE = 3, CRUSH_BUCKET_STRAW = 4 }

Functions
const char *	crush_bucket_alg_name (int alg)
int	crush_get_bucket_item_weight (const struct crush_bucket *b, int pos)
void	crush_destroy_bucket_uniform (struct crush_bucket_uniform *b)
void	crush_destroy_bucket_list (struct crush_bucket_list *b)
void	crush_destroy_bucket_tree (struct crush_bucket_tree *b)
void	crush_destroy_bucket_straw (struct crush_bucket_straw *b)
void	crush_destroy_bucket (struct crush_bucket *b)
void	crush_destroy (struct crush_map *map)

Macro Definition Documentation

#define CRUSH_CHOOSE_N   0

Definition at line 54 of file crush.h.

#define CRUSH_CHOOSE_N_MINUS

(

x

)

(-(x))

Definition at line 55 of file crush.h.

#define CRUSH_MAGIC   0x00010000ul /* for detecting algorithm revisions */

Definition at line 20 of file crush.h.

#define CRUSH_MAX_DEPTH   10 /* max crush hierarchy depth */

Definition at line 23 of file crush.h.

#define CRUSH_MAX_SET   10 /* max size of a mapping result */

Definition at line 24 of file crush.h.

#define crush_rule_size

(

len

)

Value:

(sizeof(struct crush_rule) + \
                  (len)*sizeof(struct crush_rule_step))

Definition at line 75 of file crush.h.

Enumeration Type Documentation

anonymous enum

Enumerator:

CRUSH_RULE_NOOP
CRUSH_RULE_TAKE
CRUSH_RULE_CHOOSE_FIRSTN
CRUSH_RULE_CHOOSE_INDEP
CRUSH_RULE_EMIT
CRUSH_RULE_CHOOSE_LEAF_FIRSTN
CRUSH_RULE_CHOOSE_LEAF_INDEP

Definition at line 39 of file crush.h.

anonymous enum

Enumerator:

CRUSH_BUCKET_UNIFORM
CRUSH_BUCKET_LIST
CRUSH_BUCKET_TREE
CRUSH_BUCKET_STRAW

Definition at line 94 of file crush.h.

Function Documentation

const char* crush_bucket_alg_name

(

int

alg

)

Definition at line 13 of file crush.c.

void crush_destroy

(

struct crush_map *

map

)

crush_destroy - Destroy a crush_map : crush_map pointer

Definition at line 102 of file crush.c.

void crush_destroy_bucket

(

struct crush_bucket *

b

)

Definition at line 80 of file crush.c.

void crush_destroy_bucket_list

(

struct crush_bucket_list *

b

)

Definition at line 54 of file crush.c.

void crush_destroy_bucket_straw

(

struct crush_bucket_straw *

b

)

Definition at line 71 of file crush.c.

void crush_destroy_bucket_tree

(

struct crush_bucket_tree *

b

)

Definition at line 63 of file crush.c.

void crush_destroy_bucket_uniform

(

struct crush_bucket_uniform *

b

)

Definition at line 47 of file crush.c.

int crush_get_bucket_item_weight	(	const struct crush_bucket *	b,
		int	p
	)

crush_get_bucket_item_weight - Get weight of an item in given bucket : bucket pointer : item index in bucket

Definition at line 29 of file crush.c.