xfs_ialloc_btree.h File Reference

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Data Structures
struct	xfs_inobt_rec
struct	xfs_inobt_rec_incore
struct	xfs_inobt_key

Macros
#define	XFS_IBT_MAGIC   0x49414254 /* 'IABT' */
#define	XFS_INODES_PER_CHUNK   (NBBY * sizeof(xfs_inofree_t))
#define	XFS_INODES_PER_CHUNK_LOG   (XFS_NBBYLOG + 3)
#define	XFS_INOBT_ALL_FREE   ((xfs_inofree_t)-1)
#define	XFS_INOBT_MASK(i)   ((xfs_inofree_t)1 << (i))
#define	XFS_IBT_BLOCK(mp)   ((xfs_agblock_t)(XFS_CNT_BLOCK(mp) + 1))
#define	XFS_PREALLOC_BLOCKS(mp)   ((xfs_agblock_t)(XFS_IBT_BLOCK(mp) + 1))
#define	XFS_INOBT_BLOCK_LEN(mp)   XFS_BTREE_SBLOCK_LEN
#define	XFS_INOBT_REC_ADDR(mp, block, index)
#define	XFS_INOBT_KEY_ADDR(mp, block, index)
#define	XFS_INOBT_PTR_ADDR(mp, block, index, maxrecs)

Typedefs
typedef __uint64_t	xfs_inofree_t
typedef struct xfs_inobt_rec	xfs_inobt_rec_t
typedef struct xfs_inobt_rec_incore	xfs_inobt_rec_incore_t
typedef struct xfs_inobt_key	xfs_inobt_key_t
typedef __be32	xfs_inobt_ptr_t

Functions
struct xfs_btree_cur *	xfs_inobt_init_cursor (struct xfs_mount *, struct xfs_trans *, struct xfs_buf *, xfs_agnumber_t)
int	xfs_inobt_maxrecs (struct xfs_mount *, int, int)

Macro Definition Documentation

#define XFS_IBT_BLOCK

(

mp

)

((xfs_agblock_t)(XFS_CNT_BLOCK(mp) + 1))

Definition at line 74 of file xfs_ialloc_btree.h.

#define XFS_IBT_MAGIC   0x49414254 /* 'IABT' */

Definition at line 32 of file xfs_ialloc_btree.h.

#define XFS_INOBT_ALL_FREE   ((xfs_inofree_t)-1)

Definition at line 37 of file xfs_ialloc_btree.h.

#define XFS_INOBT_BLOCK_LEN

(

mp

)

XFS_BTREE_SBLOCK_LEN

Definition at line 82 of file xfs_ialloc_btree.h.

#define XFS_INOBT_KEY_ADDR	(		mp,
			block,
			index
	)

Value:

((xfs_inobt_key_t *) \
        ((char *)(block) + \
         XFS_INOBT_BLOCK_LEN(mp) + \
         ((index) - 1) * sizeof(xfs_inobt_key_t)))

Definition at line 95 of file xfs_ialloc_btree.h.

#define XFS_INOBT_MASK

(

i

)

((xfs_inofree_t)1 << (i))

Definition at line 38 of file xfs_ialloc_btree.h.

#define XFS_INOBT_PTR_ADDR	(		mp,
			block,
			index,
			maxrecs
	)

Value:

((xfs_inobt_ptr_t *) \
        ((char *)(block) + \
         XFS_INOBT_BLOCK_LEN(mp) + \
         (maxrecs) * sizeof(xfs_inobt_key_t) + \
         ((index) - 1) * sizeof(xfs_inobt_ptr_t)))

Definition at line 101 of file xfs_ialloc_btree.h.

#define XFS_INOBT_REC_ADDR	(		mp,
			block,
			index
	)

Value:

((xfs_inobt_rec_t *) \
        ((char *)(block) + \
         XFS_INOBT_BLOCK_LEN(mp) + \
         (((index) - 1) * sizeof(xfs_inobt_rec_t))))

Definition at line 89 of file xfs_ialloc_btree.h.

#define XFS_INODES_PER_CHUNK   (NBBY * sizeof(xfs_inofree_t))

Definition at line 35 of file xfs_ialloc_btree.h.

#define XFS_INODES_PER_CHUNK_LOG   (XFS_NBBYLOG + 3)

Definition at line 36 of file xfs_ialloc_btree.h.

#define XFS_PREALLOC_BLOCKS

(

mp

)

((xfs_agblock_t)(XFS_IBT_BLOCK(mp) + 1))

Definition at line 75 of file xfs_ialloc_btree.h.

Typedef Documentation

typedef struct xfs_inobt_key xfs_inobt_key_t

typedef __be32 xfs_inobt_ptr_t

Definition at line 69 of file xfs_ialloc_btree.h.

typedef struct xfs_inobt_rec_incore xfs_inobt_rec_incore_t

typedef struct xfs_inobt_rec xfs_inobt_rec_t

typedef __uint64_t xfs_inofree_t

Definition at line 34 of file xfs_ialloc_btree.h.

Function Documentation

struct xfs_btree_cur* xfs_inobt_init_cursor ( struct xfs_mount *  , struct xfs_trans *  , struct xfs_buf *  , xfs_agnumber_t    )

read

Definition at line 231 of file xfs_ialloc_btree.c.

int xfs_inobt_maxrecs	(	struct xfs_mount *	,
		int	,
		int
	)

Definition at line 260 of file xfs_ialloc_btree.c.