jfs_xtree.h File Reference

#include "jfs_btree.h"

Go to the source code of this file.

Data Structures
struct	xad
struct	xadlist
union	xtpage_t
struct	xtpage_t::xtheader

Macros
#define	MAXXLEN   ((1 << 24) - 1)
#define	XTSLOTSIZE   16
#define	L2XTSLOTSIZE   4
#define	XADoffset(xad, offset64)
#define	XADaddress(xad, address64)
#define	XADlength(xad, length32)   (xad)->len = __cpu_to_le24(length32)
#define	offsetXAD(xad)   ( ((s64)((xad)->off1)) << 32 | __le32_to_cpu((xad)->off2))
#define	addressXAD(xad)   ( ((s64)((xad)->addr1)) << 32 | __le32_to_cpu((xad)->addr2))
#define	lengthXAD(xad)   __le24_to_cpu((xad)->len)
#define	XAD_NEW   0x01 /* new */
#define	XAD_EXTENDED   0x02 /* extended */
#define	XAD_COMPRESSED   0x04 /* compressed with recorded length */
#define	XAD_NOTRECORDED   0x08 /* allocated but not recorded */
#define	XAD_COW   0x10 /* copy-on-write */
#define	XTROOTINITSLOT_DIR   6
#define	XTROOTINITSLOT   10
#define	XTROOTMAXSLOT   18
#define	XTPAGEMAXSLOT   256
#define	XTENTRYSTART   2

Typedefs
typedef struct xad	xad_t

Functions
int	xtLookup (struct inode *ip, s64 lstart, s64 llen, int *pflag, s64 *paddr, int *plen, int flag)
void	xtInitRoot (tid_t tid, struct inode *ip)
int	xtInsert (tid_t tid, struct inode *ip, int xflag, s64 xoff, int xlen, s64 *xaddrp, int flag)
int	xtExtend (tid_t tid, struct inode *ip, s64 xoff, int xlen, int flag)
int	xtUpdate (tid_t tid, struct inode *ip, struct xad *nxad)
int	xtDelete (tid_t tid, struct inode *ip, s64 xoff, int xlen, int flag)
s64	xtTruncate (tid_t tid, struct inode *ip, s64 newsize, int type)
s64	xtTruncate_pmap (tid_t tid, struct inode *ip, s64 committed_size)
int	xtRelocate (tid_t tid, struct inode *ip, xad_t *oxad, s64 nxaddr, int xtype)
int	xtAppend (tid_t tid, struct inode *ip, int xflag, s64 xoff, int maxblocks, int *xlenp, s64 *xaddrp, int flag)

Macro Definition Documentation

#define addressXAD

(

xad

)

( ((s64)((xad)->addr1)) << 32 | __le32_to_cpu((xad)->addr2))

Definition at line 62 of file jfs_xtree.h.

#define L2XTSLOTSIZE   4

Definition at line 44 of file jfs_xtree.h.

#define lengthXAD

(

xad

)

__le24_to_cpu((xad)->len)

Definition at line 64 of file jfs_xtree.h.

#define MAXXLEN   ((1 << 24) - 1)

Definition at line 41 of file jfs_xtree.h.

#define offsetXAD

(

xad

)

( ((s64)((xad)->off1)) << 32 | __le32_to_cpu((xad)->off2))

Definition at line 60 of file jfs_xtree.h.

#define XAD_COMPRESSED   0x04 /* compressed with recorded length */

Definition at line 76 of file jfs_xtree.h.

#define XAD_COW   0x10 /* copy-on-write */

Definition at line 78 of file jfs_xtree.h.

#define XAD_EXTENDED   0x02 /* extended */

Definition at line 75 of file jfs_xtree.h.

#define XAD_NEW   0x01 /* new */

Definition at line 74 of file jfs_xtree.h.

#define XAD_NOTRECORDED   0x08 /* allocated but not recorded */

Definition at line 77 of file jfs_xtree.h.

#define XADaddress	(		xad,
			address64
	)

Value:

{\
    (xad)->addr1 = ((u64)address64) >> 32;\
    (xad)->addr2 = __cpu_to_le32((address64) & 0xffffffff);\
}

Definition at line 52 of file jfs_xtree.h.

#define XADlength	(		xad,
			length32
	)		(xad)->len = __cpu_to_le24(length32)

Definition at line 57 of file jfs_xtree.h.

#define XADoffset	(		xad,
			offset64
	)

Value:

{\
    (xad)->off1 = ((u64)offset64) >> 32;\
    (xad)->off2 = __cpu_to_le32((offset64) & 0xffffffff);\
}

Definition at line 47 of file jfs_xtree.h.

#define XTENTRYSTART   2

Definition at line 86 of file jfs_xtree.h.

#define XTPAGEMAXSLOT   256

Definition at line 85 of file jfs_xtree.h.

#define XTROOTINITSLOT   10

Definition at line 83 of file jfs_xtree.h.

#define XTROOTINITSLOT_DIR   6

Definition at line 82 of file jfs_xtree.h.

#define XTROOTMAXSLOT   18

Definition at line 84 of file jfs_xtree.h.

#define XTSLOTSIZE   16

Definition at line 43 of file jfs_xtree.h.

Typedef Documentation

typedef struct xad xad_t

Function Documentation

int xtAppend	(	tid_t	tid,
		struct inode *	ip,
		int	xflag,
		s64	xoff,
		int	maxblocks,
		int *	xlenp,
		s64 *	xaddrp,
		int	flag
	)

Definition at line 2170 of file jfs_xtree.c.

int xtDelete	(	tid_t	tid,
		struct inode *	ip,
		s64	xoff,
		int	xlen,
		int	flag
	)

int xtExtend	(	tid_t	tid,
		struct inode *	ip,
		s64	xoff,
		int	xlen,
		int	flag
	)

Definition at line 1359 of file jfs_xtree.c.

void xtInitRoot	(	tid_t	tid,
		struct inode *	ip
	)

Definition at line 3074 of file jfs_xtree.c.

int xtInsert	(	tid_t	tid,
		struct inode *	ip,
		int	xflag,
		s64	xoff,
		int	xlen,
		s64 *	xaddrp,
		int	flag
	)

Definition at line 536 of file jfs_xtree.c.

int xtLookup	(	struct inode *	ip,
		s64	lstart,
		s64	llen,
		int *	pflag,
		s64 *	paddr,
		int *	plen,
		int	flag
	)

Definition at line 145 of file jfs_xtree.c.

int xtRelocate	(	tid_t	tid,
		struct inode *	ip,
		xad_t *	oxad,
		s64	nxaddr,
		int	xtype
	)

s64 xtTruncate	(	tid_t	tid,
		struct inode *	ip,
		s64	newsize,
		int	type
	)

Definition at line 3163 of file jfs_xtree.c.

s64 xtTruncate_pmap	(	tid_t	tid,
		struct inode *	ip,
		s64	committed_size
	)

Definition at line 3719 of file jfs_xtree.c.

int xtUpdate	(	tid_t	tid,
		struct inode *	ip,
		struct xad *	nxad
	)

Definition at line 1705 of file jfs_xtree.c.