#include <sys/zap.h>
#include <sys/zfs_context.h>
#include <sys/avl.h>

Include dependency graph for zap_impl.h:

This graph shows which files directly or indirectly include this file:

Data Structures
struct	mzap_ent_phys
struct	mzap_phys
struct	mzap_ent
struct	zap_phys
	This structure is followed by padding, and then the embedded pointer table. More...
struct	zap_phys::zap_table_phys
struct	zap
struct	zap_name
Defines
#define	ZAP_MAGIC 0x2F52AB2ABULL
#define	FZAP_BLOCK_SHIFT(zap) ((zap)->zap_f.zap_block_shift)
#define	MZAP_ENT_LEN 64
#define	MZAP_NAME_LEN (MZAP_ENT_LEN - 8 - 4 - 2)
#define	MZAP_MAX_BLKSHIFT SPA_MAXBLOCKSHIFT
#define	MZAP_MAX_BLKSZ (1 << MZAP_MAX_BLKSHIFT)
#define	ZAP_NEED_CD (-1U)
#define	MZE_PHYS(zap, mze) (&(zap)->zap_m.zap_phys->mz_chunk[(mze)->mze_chunkid])
#define	ZBT_LEAF ((1ULL << 63) + 0)
#define	ZBT_HEADER ((1ULL << 63) + 1)
#define	ZBT_MICRO ((1ULL << 63) + 3)
#define	ZAP_EMBEDDED_PTRTBL_SHIFT(zap) (FZAP_BLOCK_SHIFT(zap) - 3 - 1)
	the embedded pointer table takes up half a block: block size / entry size (2^3) / 2
#define	ZAP_EMBEDDED_PTRTBL_ENT(zap, idx)
	The embedded pointer table starts half-way through the block.
#define	zap_f zap_u.zap_fat
#define	zap_m zap_u.zap_micro
#define	ZAP_HASH_IDX(hash, n) (((n) == 0) ? 0 : ((hash) >> (64 - (n))))
Typedefs
typedef struct mzap_ent_phys	mzap_ent_phys_t
typedef struct mzap_phys	mzap_phys_t
typedef struct mzap_ent	mzap_ent_t
typedef struct zap_phys	zap_phys_t
	This structure is followed by padding, and then the embedded pointer table.
typedef struct zap_table_phys	zap_table_phys_t
typedef struct zap	zap_t
typedef struct zap_name	zap_name_t
Functions
boolean_t	zap_match (zap_name_t zn, const char matchname)
int	zap_lockdir (objset_t os, uint64_t obj, dmu_tx_t tx, krw_t lti, boolean_t fatreader, boolean_t adding, zap_t **zapp)
void	zap_unlockdir (zap_t *zap)
void	zap_evict (dmu_buf_t db, void vmzap)
zap_name_t *	zap_name_alloc (zap_t zap, const char key, matchtype_t mt)
void	zap_name_free (zap_name_t *zn)
int	zap_hashbits (zap_t *zap)
uint32_t	zap_maxcd (zap_t *zap)
uint64_t	zap_getflags (zap_t *zap)
void	fzap_byteswap (void *buf, size_t size)
int	fzap_count (zap_t zap, uint64_t count)
int	fzap_lookup (zap_name_t zn, uint64_t integer_size, uint64_t num_integers, void buf, char realname, int rn_len, boolean_t normalization_conflictp)
	Routines for manipulating attributes.
void	fzap_prefetch (zap_name_t *zn)
int	fzap_count_write (zap_name_t zn, int add, uint64_t towrite, uint64_t *tooverwrite)
int	fzap_add (zap_name_t zn, uint64_t integer_size, uint64_t num_integers, const void val, dmu_tx_t *tx)
int	fzap_update (zap_name_t zn, int integer_size, uint64_t num_integers, const void val, dmu_tx_t *tx)
int	fzap_length (zap_name_t zn, uint64_t integer_size, uint64_t *num_integers)
int	fzap_remove (zap_name_t zn, dmu_tx_t tx)
int	fzap_cursor_retrieve (zap_t zap, zap_cursor_t zc, zap_attribute_t *za)
void	fzap_get_stats (zap_t zap, zap_stats_t zs)
void	zap_put_leaf (struct zap_leaf *l)
int	fzap_add_cd (zap_name_t zn, uint64_t integer_size, uint64_t num_integers, const void val, uint32_t cd, dmu_tx_t *tx)
void	fzap_upgrade (zap_t zap, dmu_tx_t tx, zap_flags_t flags)
int	fzap_cursor_move_to_key (zap_cursor_t zc, zap_name_t zn)
Variables
int	fzap_default_block_shift

Define Documentation

#define FZAP_BLOCK_SHIFT ( zap ) ((zap)->zap_f.zap_block_shift)

Definition at line 40 of file zap_impl.h.

#define MZAP_ENT_LEN 64

Definition at line 42 of file zap_impl.h.

#define MZAP_MAX_BLKSHIFT SPA_MAXBLOCKSHIFT

Definition at line 44 of file zap_impl.h.

#define MZAP_MAX_BLKSZ (1 << MZAP_MAX_BLKSHIFT)

Definition at line 45 of file zap_impl.h.

#define MZAP_NAME_LEN (MZAP_ENT_LEN - 8 - 4 - 2)

Definition at line 43 of file zap_impl.h.

#define MZE_PHYS	(	zap,
		mze
	)	(&(zap)->zap_m.zap_phys->mz_chunk[(mze)->mze_chunkid])

Definition at line 72 of file zap_impl.h.

#define ZAP_EMBEDDED_PTRTBL_ENT	(	zap,
		idx
	)

Value:

((uint64_t *)(zap)->zap_f.zap_phys) \
        [(idx) + (1<<ZAP_EMBEDDED_PTRTBL_SHIFT(zap))]

The embedded pointer table starts half-way through the block.

Since the pointer table itself is half the block, it starts at (64-bit) word number (1<<ZAP_EMBEDDED_PTRTBL_SHIFT(zap)).

Definition at line 106 of file zap_impl.h.

#define ZAP_EMBEDDED_PTRTBL_SHIFT ( zap ) (FZAP_BLOCK_SHIFT(zap) - 3 - 1)

the embedded pointer table takes up half a block: block size / entry size (2^3) / 2

Definition at line 99 of file zap_impl.h.

#define zap_f zap_u.zap_fat

Definition at line 178 of file zap_impl.h.

#define ZAP_HASH_IDX	(	hash,
		n
	)	(((n) == 0) ? 0 : ((hash) >> (64 - (n))))

Definition at line 192 of file zap_impl.h.

#define zap_m zap_u.zap_micro

Definition at line 179 of file zap_impl.h.

#define ZAP_MAGIC 0x2F52AB2ABULL

Definition at line 38 of file zap_impl.h.

#define ZAP_NEED_CD (-1U)

Definition at line 47 of file zap_impl.h.

#define ZBT_HEADER ((1ULL << 63) + 1)

Definition at line 91 of file zap_impl.h.

#define ZBT_LEAF ((1ULL << 63) + 0)

Definition at line 90 of file zap_impl.h.

#define ZBT_MICRO ((1ULL << 63) + 3)

Definition at line 92 of file zap_impl.h.

Typedef Documentation

typedef struct mzap_ent_phys mzap_ent_phys_t

typedef struct mzap_ent mzap_ent_t

typedef struct mzap_phys mzap_phys_t

typedef struct zap_name zap_name_t

typedef struct zap_phys zap_phys_t

This structure is followed by padding, and then the embedded pointer table.

The embedded pointer table takes up second half of the block. It is accessed using the ZAP_EMBEDDED_PTRTBL_ENT() macro.

Note:: If zap_phys_t is modified, zap_byteswap() must be modified.

typedef struct zap zap_t

typedef struct zap_table_phys zap_table_phys_t

Definition at line 138 of file zap_impl.h.

Function Documentation

int fzap_add	(	zap_name_t *	zn,
		uint64_t	integer_size,
		uint64_t	num_integers,
		const void *	val,
		dmu_tx_t *	tx
	)

Definition at line 835 of file zap.c.

int fzap_add_cd	(	zap_name_t *	zn,
		uint64_t	integer_size,
		uint64_t	num_integers,
		const void *	val,
		uint32_t	cd,
		dmu_tx_t *	tx
	)

Definition at line 791 of file zap.c.

void fzap_byteswap	(	void *	buf,
		size_t	size
	)

Definition at line 60 of file zap.c.

int fzap_count	(	zap_t *	zap,
		uint64_t *	count
	)

Definition at line 421 of file zap.c.

int fzap_count_write	(	zap_name_t *	zn,
		int	add,
		uint64_t *	towrite,
		uint64_t *	tooverwrite
	)

Definition at line 1328 of file zap.c.

int fzap_cursor_move_to_key	(	zap_cursor_t *	zc,
		zap_name_t *	zn
	)

Definition at line 1248 of file zap.c.

int fzap_cursor_retrieve	(	zap_t *	zap,
		zap_cursor_t *	zc,
		zap_attribute_t *	za
	)

Definition at line 1153 of file zap.c.

void fzap_get_stats	(	zap_t *	zap,
		zap_stats_t *	zs
	)

Definition at line 1273 of file zap.c.

int fzap_length	(	zap_name_t *	zn,
		uint64_t *	integer_size,
		uint64_t *	num_integers
	)

Definition at line 891 of file zap.c.

int fzap_lookup	(	zap_name_t *	zn,
		uint64_t	integer_size,
		uint64_t	num_integers,
		void *	buf,
		char *	realname,
		int	rn_len,
		boolean_t *	normalization_conflictp
	)

Routines for manipulating attributes.

Definition at line 757 of file zap.c.

void fzap_prefetch ( zap_name_t * zn )

Definition at line 934 of file zap.c.

int fzap_remove	(	zap_name_t *	zn,
		dmu_tx_t *	tx
	)

Definition at line 915 of file zap.c.

int fzap_update	(	zap_name_t *	zn,
		int	integer_size,
		uint64_t	num_integers,
		const void *	val,
		dmu_tx_t *	tx
	)

Definition at line 848 of file zap.c.

void fzap_upgrade	(	zap_t *	zap,
		dmu_tx_t *	tx,
		zap_flags_t	flags
	)

Definition at line 75 of file zap.c.

void zap_evict	(	dmu_buf_t *	db,
		void *	vmzap
	)

Definition at line 692 of file zap_micro.c.

uint64_t zap_getflags ( zap_t * zap )

Definition at line 44 of file zap_micro.c.

int zap_hashbits ( zap_t * zap )

Definition at line 52 of file zap_micro.c.

int zap_lockdir	(	objset_t *	os,
		uint64_t	obj,
		dmu_tx_t *	tx,
		krw_t	lti,
		boolean_t	fatreader,
		boolean_t	adding,
		zap_t **	zapp
	)

Definition at line 457 of file zap_micro.c.

boolean_t zap_match	(	zap_name_t *	zn,
		const char *	matchname
	)

Definition at line 149 of file zap_micro.c.

uint32_t zap_maxcd ( zap_t * zap )

Definition at line 61 of file zap_micro.c.

zap_name_t* zap_name_alloc	(	zap_t *	zap,
		const char *	key,
		matchtype_t	mt
	)

Definition at line 173 of file zap_micro.c.

void zap_name_free ( zap_name_t * zn )

Definition at line 167 of file zap_micro.c.

void zap_put_leaf ( struct zap_leaf * l )

Definition at line 435 of file zap.c.

void zap_unlockdir ( zap_t * zap )

Definition at line 530 of file zap_micro.c.

Variable Documentation

int fzap_default_block_shift

Definition at line 53 of file zap.c.

sys/zap_impl.h File Reference

Data Structures

Defines

Typedefs

Functions

Variables

Define Documentation

Typedef Documentation

Function Documentation

Variable Documentation