dm-space-map-common.h File Reference

#include "dm-btree.h"

Go to the source code of this file.

Data Structures
struct	disk_index_entry
struct	disk_metadata_index
struct	ll_disk
struct	disk_sm_root
struct	disk_bitmap_header

Macros
#define	MAX_METADATA_BITMAPS   255
#define	ENTRIES_PER_BYTE   4

Typedefs
typedef int(*	load_ie_fn )(struct ll_disk *ll, dm_block_t index, struct disk_index_entry *result)
typedef int(*	save_ie_fn )(struct ll_disk *ll, dm_block_t index, struct disk_index_entry *ie)
typedef int(*	init_index_fn )(struct ll_disk *ll)
typedef int(*	open_index_fn )(struct ll_disk *ll)
typedef dm_block_t(*	max_index_entries_fn )(struct ll_disk *ll)
typedef int(*	commit_fn )(struct ll_disk *ll)

Enumerations
enum	allocation_event { SM_NONE, SM_ALLOC, SM_FREE }

Functions
int	sm_ll_extend (struct ll_disk *ll, dm_block_t extra_blocks)
int	sm_ll_lookup_bitmap (struct ll_disk *ll, dm_block_t b, uint32_t *result)
int	sm_ll_lookup (struct ll_disk *ll, dm_block_t b, uint32_t *result)
int	sm_ll_find_free_block (struct ll_disk *ll, dm_block_t begin, dm_block_t end, dm_block_t *result)
int	sm_ll_insert (struct ll_disk *ll, dm_block_t b, uint32_t ref_count, enum allocation_event *ev)
int	sm_ll_inc (struct ll_disk *ll, dm_block_t b, enum allocation_event *ev)
int	sm_ll_dec (struct ll_disk *ll, dm_block_t b, enum allocation_event *ev)
int	sm_ll_commit (struct ll_disk *ll)
int	sm_ll_new_metadata (struct ll_disk *ll, struct dm_transaction_manager *tm)
int	sm_ll_open_metadata (struct ll_disk *ll, struct dm_transaction_manager *tm, void *root_le, size_t len)
int	sm_ll_new_disk (struct ll_disk *ll, struct dm_transaction_manager *tm)
int	sm_ll_open_disk (struct ll_disk *ll, struct dm_transaction_manager *tm, void *root_le, size_t len)

Variables
struct disk_index_entry	__packed

Macro Definition Documentation

#define ENTRIES_PER_BYTE   4

Definition at line 91 of file dm-space-map-common.h.

#define MAX_METADATA_BITMAPS   255

Definition at line 39 of file dm-space-map-common.h.

Typedef Documentation

typedef int(* commit_fn)(struct ll_disk *ll)

Definition at line 55 of file dm-space-map-common.h.

typedef int(* init_index_fn)(struct ll_disk *ll)

Definition at line 52 of file dm-space-map-common.h.

typedef int(* load_ie_fn)(struct ll_disk *ll, dm_block_t index, struct disk_index_entry *result)

Definition at line 50 of file dm-space-map-common.h.

typedef dm_block_t(* max_index_entries_fn)(struct ll_disk *ll)

Definition at line 54 of file dm-space-map-common.h.

typedef int(* open_index_fn)(struct ll_disk *ll)

Definition at line 53 of file dm-space-map-common.h.

typedef int(* save_ie_fn)(struct ll_disk *ll, dm_block_t index, struct disk_index_entry *ie)

Definition at line 51 of file dm-space-map-common.h.

Enumeration Type Documentation

enum allocation_event

Enumerator:

SM_NONE
SM_ALLOC
SM_FREE

Definition at line 99 of file dm-space-map-common.h.

Function Documentation

int sm_ll_commit

(

struct ll_disk *

ll

)

Definition at line 478 of file dm-space-map-common.c.

int sm_ll_dec	(	struct ll_disk *	ll,
		dm_block_t	b,
		enum allocation_event *	ev
	)

Definition at line 463 of file dm-space-map-common.c.

int sm_ll_extend	(	struct ll_disk *	ll,
		dm_block_t	extra_blocks
	)

Definition at line 232 of file dm-space-map-common.c.

int sm_ll_find_free_block	(	struct ll_disk *	ll,
		dm_block_t	begin,
		dm_block_t	end,
		dm_block_t *	result
	)

Definition at line 315 of file dm-space-map-common.c.

int sm_ll_inc	(	struct ll_disk *	ll,
		dm_block_t	b,
		enum allocation_event *	ev
	)

Definition at line 451 of file dm-space-map-common.c.

int sm_ll_insert	(	struct ll_disk *	ll,
		dm_block_t	b,
		uint32_t	ref_count,
		enum allocation_event *	ev
	)

Definition at line 375 of file dm-space-map-common.c.

int sm_ll_lookup	(	struct ll_disk *	ll,
		dm_block_t	b,
		uint32_t *	result
	)

Definition at line 295 of file dm-space-map-common.c.

int sm_ll_lookup_bitmap	(	struct ll_disk *	ll,
		dm_block_t	b,
		uint32_t *	result
	)

Definition at line 273 of file dm-space-map-common.c.

int sm_ll_new_disk	(	struct ll_disk *	ll,
		struct dm_transaction_manager *	tm
	)

Definition at line 653 of file dm-space-map-common.c.

int sm_ll_new_metadata	(	struct ll_disk *	ll,
		struct dm_transaction_manager *	tm
	)

Definition at line 557 of file dm-space-map-common.c.

int sm_ll_open_disk	(	struct ll_disk *	ll,
		struct dm_transaction_manager *	tm,
		void *	root_le,
		size_t	len
	)

Definition at line 682 of file dm-space-map-common.c.

int sm_ll_open_metadata	(	struct ll_disk *	ll,
		struct dm_transaction_manager *	tm,
		void *	root_le,
		size_t	len
	)

Definition at line 586 of file dm-space-map-common.c.

Variable Documentation

struct disk_bitmap_header __packed