xfs/libxfs/xfs_da_btree.h

1 /* SPDX-License-Identifier: GPL-2.0 */
14  * Directory/attribute geometry information. There will be one of these for each
21 	uint8_t		fsblog;		/* log2 of _filesystem_ block size */
22 	uint8_t		blklog;		/* log2 of da block size */
24 	unsigned int	node_ents;	/* # of entries in a danode */
25 	unsigned int	magicpct;	/* 37% of block size in bytes */
26 	xfs_dablk_t	datablk;	/* blockno of dir data v2 */
28 	unsigned int	leaf_max_ents;	/* # of entries in dir2 leaf */
29 	xfs_dablk_t	leafblk;	/* blockno of leaf data v2 */
31 	unsigned int	free_max_bests;	/* # of bests entries in dir2 free */
32 	xfs_dablk_t	freeblk;	/* blockno of free data v2 */
53  * Structure to ease passing around component names.
59 	void		*value;		/* set of bytes (maybe contain NULLs) */
67 	int		valuelen;	/* length of value */
68 	int		new_valuelen;	/* length of new_value */
69 	uint8_t		filetype;	/* filetype of inode for directories */
72 	short		namelen;	/* length of string (maybe no NULL) */
73 	short		new_namelen;	/* length of new attr name */
74 	xfs_dahash_t	hashval;	/* hash value of name */
77 	xfs_dablk_t	blkno;		/* blkno of attr leaf of interest */
78 	int		index;		/* index of attr of interest in blk */
82 	xfs_dablk_t	blkno2;		/* blkno of 2nd attr leaf of interest */
83 	int		index2;		/* index of 2nd attr in blk */
99 #define XFS_DA_OP_LOGGED	(1u << 6) /* Use intent items to track op */
113  * Only need space for 5 intermediate nodes.  With a minimum of 62-way
119 	xfs_dablk_t	blkno;		/* filesystem blkno of buffer */
120 	xfs_daddr_t	disk_blkno;	/* on-disk blkno (in BBs) of buffer */
127 	int			active;		/* number of active levels */
136 	unsigned char		inleaf;		/* insert into 1->lf, 0->splf */
137 	unsigned char		extravalid;	/* T/F: extrablk is in use */
139 	xfs_da_state_blk_t	extrablk;	/* for double-splits on leaves */
144  * In-core version of the node header to abstract the differences in the v2 and
145  * v3 disk format of the headers. Callers need to convert to/from disk format as
156 	 * Pointer to the on-disk format entries, which are behind the
157 	 * variable size (v4 vs v5) header in the on-disk block.
165 #define XFS_DA_LOGOFF(BASE, ADDR)	((char *)(ADDR) - (char *)(BASE))
168 		(uint)(XFS_DA_LOGOFF(BASE, ADDR)+(SIZE)-1)