dm-space-map-common.c File Reference

#include "dm-space-map-common.h"
#include "dm-transaction-manager.h"
#include <linux/bitops.h>
#include <linux/device-mapper.h>

Go to the source code of this file.

Macros
#define	DM_MSG_PREFIX   "space map common"
#define	INDEX_CSUM_XOR   160478
#define	BITMAP_CSUM_XOR   240779
#define	ENTRIES_PER_WORD   32
#define	ENTRIES_SHIFT   5
#define	WORD_MASK_HIGH   0xAAAAAAAAAAAAAAAAULL

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)

Macro Definition Documentation

#define BITMAP_CSUM_XOR   240779

Definition at line 70 of file dm-space-map-common.c.

#define DM_MSG_PREFIX   "space map common"

Definition at line 13 of file dm-space-map-common.c.

#define ENTRIES_PER_WORD   32

Definition at line 117 of file dm-space-map-common.c.

#define ENTRIES_SHIFT   5

Definition at line 118 of file dm-space-map-common.c.

#define INDEX_CSUM_XOR   160478

Definition at line 20 of file dm-space-map-common.c.

#define WORD_MASK_HIGH   0xAAAAAAAAAAAAAAAAULL

Definition at line 125 of file dm-space-map-common.c.

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.