fs/xfs/xfs_dinode.h - fp2-dev/kernel/msm - Gitiles

 /*
  * Copyright (c) 2000,2002,2005 Silicon Graphics, Inc.
  * All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
  * published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it would be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write the Free Software Foundation,
  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 #ifndef __XFS_DINODE_H__
 #define	__XFS_DINODE_H__

 struct xfs_buf;
 struct xfs_mount;

 #define	XFS_DINODE_VERSION_1	1
 #define	XFS_DINODE_VERSION_2	2
 #define XFS_DINODE_GOOD_VERSION(v)	\
 	(((v) == XFS_DINODE_VERSION_1 || (v) == XFS_DINODE_VERSION_2))
 #define	XFS_DINODE_MAGIC	0x494e	/* 'IN' */

 /*
  * Disk inode structure.
  * This is just the header; the inode is expanded to fill a variable size
  * with the last field expanding.  It is split into the core and "other"
  * because we only need the core part in the in-core inode.
  */
 typedef struct xfs_timestamp {
 	__be32		t_sec;		/* timestamp seconds */
 	__be32		t_nsec;		/* timestamp nanoseconds */
 } xfs_timestamp_t;

 /*
  * Note: Coordinate changes to this structure with the XFS_DI_* #defines
  * below, the offsets table in xfs_ialloc_log_di() and struct xfs_icdinode
  * in xfs_inode.h.
  */
 typedef struct xfs_dinode_core {
 	__be16		di_magic;	/* inode magic # = XFS_DINODE_MAGIC */
 	__be16		di_mode;	/* mode and type of file */
 	__u8		di_version;	/* inode version */
 	__u8		di_format;	/* format of di_c data */
 	__be16		di_onlink;	/* old number of links to file */
 	__be32		di_uid;		/* owner's user id */
 	__be32		di_gid;		/* owner's group id */
 	__be32		di_nlink;	/* number of links to file */
 	__be16		di_projid;	/* owner's project id */
 	__u8		di_pad[8];	/* unused, zeroed space */
 	__be16		di_flushiter;	/* incremented on flush */
 	xfs_timestamp_t	di_atime;	/* time last accessed */
 	xfs_timestamp_t	di_mtime;	/* time last modified */
 	xfs_timestamp_t	di_ctime;	/* time created/inode modified */
 	__be64		di_size;	/* number of bytes in file */
 	__be64		di_nblocks;	/* # of direct & btree blocks used */
 	__be32		di_extsize;	/* basic/minimum extent size for file */
 	__be32		di_nextents;	/* number of extents in data fork */
 	__be16		di_anextents;	/* number of extents in attribute fork*/
 	__u8		di_forkoff;	/* attr fork offs, <<3 for 64b align */
 	__s8		di_aformat;	/* format of attr fork's data */
 	__be32		di_dmevmask;	/* DMIG event mask */
 	__be16		di_dmstate;	/* DMIG state info */
 	__be16		di_flags;	/* random flags, XFS_DIFLAG_... */
 	__be32		di_gen;		/* generation number */
 } xfs_dinode_core_t;

 #define DI_MAX_FLUSH 0xffff

 typedef struct xfs_dinode
 {
 	xfs_dinode_core_t	di_core;
 	/*
 	 * In adding anything between the core and the union, be
 	 * sure to update the macros like XFS_LITINO below and
 	 * XFS_BMAP_RBLOCK_DSIZE in xfs_bmap_btree.h.
 	 */
 	__be32			di_next_unlinked;/* agi unlinked list ptr */
 	union {
 		xfs_bmdr_block_t di_bmbt;	/* btree root block */
 		xfs_bmbt_rec_32_t di_bmx[1];	/* extent list */
 		xfs_dir2_sf_t	di_dir2sf;	/* shortform directory v2 */
 		char		di_c[1];	/* local contents */
 		__be32		di_dev;		/* device for S_IFCHR/S_IFBLK */
 		uuid_t		di_muuid;	/* mount point value */
 		char		di_symlink[1];	/* local symbolic link */
 	}		di_u;
 	union {
 		xfs_bmdr_block_t di_abmbt;	/* btree root block */
 		xfs_bmbt_rec_32_t di_abmx[1];	/* extent list */
 		xfs_attr_shortform_t di_attrsf;	/* shortform attribute list */
 	}		di_a;
 } xfs_dinode_t;

 /*
  * The 32 bit link count in the inode theoretically maxes out at UINT_MAX.
  * Since the pathconf interface is signed, we use 2^31 - 1 instead.
  * The old inode format had a 16 bit link count, so its maximum is USHRT_MAX.
  */
 #define	XFS_MAXLINK		((1U << 31) - 1U)
 #define	XFS_MAXLINK_1		65535U

 /*
  * Bit names for logging disk inodes only
  */
 #define	XFS_DI_MAGIC		0x0000001
 #define	XFS_DI_MODE		0x0000002
 #define	XFS_DI_VERSION		0x0000004
 #define	XFS_DI_FORMAT		0x0000008
 #define	XFS_DI_ONLINK		0x0000010
 #define	XFS_DI_UID		0x0000020
 #define	XFS_DI_GID		0x0000040
 #define	XFS_DI_NLINK		0x0000080
 #define	XFS_DI_PROJID		0x0000100
 #define	XFS_DI_PAD		0x0000200
 #define	XFS_DI_ATIME		0x0000400
 #define	XFS_DI_MTIME		0x0000800
 #define	XFS_DI_CTIME		0x0001000
 #define	XFS_DI_SIZE		0x0002000
 #define	XFS_DI_NBLOCKS		0x0004000
 #define	XFS_DI_EXTSIZE		0x0008000
 #define	XFS_DI_NEXTENTS		0x0010000
 #define	XFS_DI_NAEXTENTS	0x0020000
 #define	XFS_DI_FORKOFF		0x0040000
 #define	XFS_DI_AFORMAT		0x0080000
 #define	XFS_DI_DMEVMASK		0x0100000
 #define	XFS_DI_DMSTATE		0x0200000
 #define	XFS_DI_FLAGS		0x0400000
 #define	XFS_DI_GEN		0x0800000
 #define	XFS_DI_NEXT_UNLINKED	0x1000000
 #define	XFS_DI_U		0x2000000
 #define	XFS_DI_A		0x4000000
 #define	XFS_DI_NUM_BITS		27
 #define	XFS_DI_ALL_BITS		((1 << XFS_DI_NUM_BITS) - 1)
 #define	XFS_DI_CORE_BITS	(XFS_DI_ALL_BITS & ~(XFS_DI_U|XFS_DI_A))

 /*
  * Values for di_format
  */
 typedef enum xfs_dinode_fmt
 {
 	XFS_DINODE_FMT_DEV,		/* CHR, BLK: di_dev */
 	XFS_DINODE_FMT_LOCAL,		/* DIR, REG: di_c */
 					/* LNK: di_symlink */
 	XFS_DINODE_FMT_EXTENTS,		/* DIR, REG, LNK: di_bmx */
 	XFS_DINODE_FMT_BTREE,		/* DIR, REG, LNK: di_bmbt */
 	XFS_DINODE_FMT_UUID		/* MNT: di_uuid */
 } xfs_dinode_fmt_t;

 /*
  * Inode minimum and maximum sizes.
  */
 #define	XFS_DINODE_MIN_LOG	8
 #define	XFS_DINODE_MAX_LOG	11
 #define	XFS_DINODE_MIN_SIZE	(1 << XFS_DINODE_MIN_LOG)
 #define	XFS_DINODE_MAX_SIZE	(1 << XFS_DINODE_MAX_LOG)

 /*
  * Inode size for given fs.
  */
 #define	XFS_LITINO(mp)	((mp)->m_litino)
 #define	XFS_BROOT_SIZE_ADJ	\
 	(sizeof(xfs_bmbt_block_t) - sizeof(xfs_bmdr_block_t))

 /*
  * Inode data & attribute fork sizes, per inode.
  */
 #define XFS_CFORK_Q(dcp)                    ((dcp)->di_forkoff != 0)
 #define	XFS_CFORK_Q_DISK(dcp)		    ((dcp)->di_forkoff != 0)

 #define XFS_CFORK_BOFF(dcp)                 ((int)((dcp)->di_forkoff << 3))
 #define	XFS_CFORK_BOFF_DISK(dcp)	    ((int)((dcp)->di_forkoff << 3))

 #define	XFS_CFORK_DSIZE_DISK(dcp,mp) \
 	(XFS_CFORK_Q_DISK(dcp) ? XFS_CFORK_BOFF_DISK(dcp) : XFS_LITINO(mp))
 #define XFS_CFORK_DSIZE(dcp,mp) \
 	(XFS_CFORK_Q(dcp) ? XFS_CFORK_BOFF(dcp) : XFS_LITINO(mp))

 #define	XFS_CFORK_ASIZE_DISK(dcp,mp) \
 	(XFS_CFORK_Q_DISK(dcp) ? XFS_LITINO(mp) - XFS_CFORK_BOFF_DISK(dcp) : 0)
 #define XFS_CFORK_ASIZE(dcp,mp) \
 	(XFS_CFORK_Q(dcp) ? XFS_LITINO(mp) - XFS_CFORK_BOFF(dcp) : 0)

 #define	XFS_CFORK_SIZE_DISK(dcp,mp,w) \
 	((w) == XFS_DATA_FORK ? \
 		XFS_CFORK_DSIZE_DISK(dcp, mp) : \
 	 	XFS_CFORK_ASIZE_DISK(dcp, mp))
 #define XFS_CFORK_SIZE(dcp,mp,w) \
 	((w) == XFS_DATA_FORK ? \
 		XFS_CFORK_DSIZE(dcp, mp) : XFS_CFORK_ASIZE(dcp, mp))

 #define XFS_DFORK_DSIZE(dip,mp) \
 	XFS_CFORK_DSIZE_DISK(&(dip)->di_core, mp)
 #define XFS_DFORK_DSIZE_HOST(dip,mp) \
 	XFS_CFORK_DSIZE(&(dip)->di_core, mp)
 #define XFS_DFORK_ASIZE(dip,mp) \
 	XFS_CFORK_ASIZE_DISK(&(dip)->di_core, mp)
 #define XFS_DFORK_ASIZE_HOST(dip,mp) \
 	XFS_CFORK_ASIZE(&(dip)->di_core, mp)
 #define	XFS_DFORK_SIZE(dip,mp,w) \
 	XFS_CFORK_SIZE_DISK(&(dip)->di_core, mp, w)
 #define	XFS_DFORK_SIZE_HOST(dip,mp,w) \
 	XFS_CFORK_SIZE(&(dip)->di_core, mp, w)

 #define	XFS_DFORK_Q(dip)                    XFS_CFORK_Q_DISK(&(dip)->di_core)
 #define	XFS_DFORK_BOFF(dip)		    XFS_CFORK_BOFF_DISK(&(dip)->di_core)
 #define	XFS_DFORK_DPTR(dip)		    ((dip)->di_u.di_c)
 #define	XFS_DFORK_APTR(dip)	\
 	((dip)->di_u.di_c + XFS_DFORK_BOFF(dip))
 #define	XFS_DFORK_PTR(dip,w)	\
 	((w) == XFS_DATA_FORK ? XFS_DFORK_DPTR(dip) : XFS_DFORK_APTR(dip))
 #define	XFS_CFORK_FORMAT(dcp,w)	\
 	((w) == XFS_DATA_FORK ? (dcp)->di_format : (dcp)->di_aformat)
 #define	XFS_CFORK_FMT_SET(dcp,w,n) \
 	((w) == XFS_DATA_FORK ? \
 		((dcp)->di_format = (n)) : ((dcp)->di_aformat = (n)))
 #define	XFS_DFORK_FORMAT(dip,w) XFS_CFORK_FORMAT(&(dip)->di_core, w)

 #define	XFS_CFORK_NEXTENTS_DISK(dcp,w) \
 	((w) == XFS_DATA_FORK ? \
 	 	be32_to_cpu((dcp)->di_nextents) : \
 	 	be16_to_cpu((dcp)->di_anextents))
 #define XFS_CFORK_NEXTENTS(dcp,w) \
 	((w) == XFS_DATA_FORK ? (dcp)->di_nextents : (dcp)->di_anextents)
 #define	XFS_DFORK_NEXTENTS(dip,w) XFS_CFORK_NEXTENTS_DISK(&(dip)->di_core, w)
 #define	XFS_DFORK_NEXTENTS_HOST(dip,w) XFS_CFORK_NEXTENTS(&(dip)->di_core, w)

 #define	XFS_CFORK_NEXT_SET(dcp,w,n) \
 	((w) == XFS_DATA_FORK ? \
 		((dcp)->di_nextents = (n)) : ((dcp)->di_anextents = (n)))

 #define	XFS_BUF_TO_DINODE(bp)	((xfs_dinode_t *)XFS_BUF_PTR(bp))

 /*
  * Values for di_flags
  * There should be a one-to-one correspondence between these flags and the
  * XFS_XFLAG_s.
  */
 #define XFS_DIFLAG_REALTIME_BIT  0	/* file's blocks come from rt area */
 #define XFS_DIFLAG_PREALLOC_BIT  1	/* file space has been preallocated */
 #define XFS_DIFLAG_NEWRTBM_BIT   2	/* for rtbitmap inode, new format */
 #define XFS_DIFLAG_IMMUTABLE_BIT 3	/* inode is immutable */
 #define XFS_DIFLAG_APPEND_BIT    4	/* inode is append-only */
 #define XFS_DIFLAG_SYNC_BIT      5	/* inode is written synchronously */
 #define XFS_DIFLAG_NOATIME_BIT   6	/* do not update atime */
 #define XFS_DIFLAG_NODUMP_BIT    7	/* do not dump */
 #define XFS_DIFLAG_RTINHERIT_BIT 8	/* create with realtime bit set */
 #define XFS_DIFLAG_PROJINHERIT_BIT   9	/* create with parents projid */
 #define XFS_DIFLAG_NOSYMLINKS_BIT   10	/* disallow symlink creation */
 #define XFS_DIFLAG_EXTSIZE_BIT      11	/* inode extent size allocator hint */
 #define XFS_DIFLAG_EXTSZINHERIT_BIT 12	/* inherit inode extent size */
 #define XFS_DIFLAG_NODEFRAG_BIT     13	/* do not reorganize/defragment */
 #define XFS_DIFLAG_FILESTREAM_BIT   14  /* use filestream allocator */
 #define XFS_DIFLAG_REALTIME      (1 << XFS_DIFLAG_REALTIME_BIT)
 #define XFS_DIFLAG_PREALLOC      (1 << XFS_DIFLAG_PREALLOC_BIT)
 #define XFS_DIFLAG_NEWRTBM       (1 << XFS_DIFLAG_NEWRTBM_BIT)
 #define XFS_DIFLAG_IMMUTABLE     (1 << XFS_DIFLAG_IMMUTABLE_BIT)
 #define XFS_DIFLAG_APPEND        (1 << XFS_DIFLAG_APPEND_BIT)
 #define XFS_DIFLAG_SYNC          (1 << XFS_DIFLAG_SYNC_BIT)
 #define XFS_DIFLAG_NOATIME       (1 << XFS_DIFLAG_NOATIME_BIT)
 #define XFS_DIFLAG_NODUMP        (1 << XFS_DIFLAG_NODUMP_BIT)
 #define XFS_DIFLAG_RTINHERIT     (1 << XFS_DIFLAG_RTINHERIT_BIT)
 #define XFS_DIFLAG_PROJINHERIT   (1 << XFS_DIFLAG_PROJINHERIT_BIT)
 #define XFS_DIFLAG_NOSYMLINKS    (1 << XFS_DIFLAG_NOSYMLINKS_BIT)
 #define XFS_DIFLAG_EXTSIZE       (1 << XFS_DIFLAG_EXTSIZE_BIT)
 #define XFS_DIFLAG_EXTSZINHERIT  (1 << XFS_DIFLAG_EXTSZINHERIT_BIT)
 #define XFS_DIFLAG_NODEFRAG      (1 << XFS_DIFLAG_NODEFRAG_BIT)
 #define XFS_DIFLAG_FILESTREAM    (1 << XFS_DIFLAG_FILESTREAM_BIT)

 #define XFS_DIFLAG_ANY \
 	(XFS_DIFLAG_REALTIME | XFS_DIFLAG_PREALLOC | XFS_DIFLAG_NEWRTBM | \
 	 XFS_DIFLAG_IMMUTABLE | XFS_DIFLAG_APPEND | XFS_DIFLAG_SYNC | \
 	 XFS_DIFLAG_NOATIME | XFS_DIFLAG_NODUMP | XFS_DIFLAG_RTINHERIT | \
 	 XFS_DIFLAG_PROJINHERIT | XFS_DIFLAG_NOSYMLINKS | XFS_DIFLAG_EXTSIZE | \
 	 XFS_DIFLAG_EXTSZINHERIT | XFS_DIFLAG_NODEFRAG | XFS_DIFLAG_FILESTREAM)

 #endif	/* __XFS_DINODE_H__ */
	/*
	* Copyright (c) 2000,2002,2005 Silicon Graphics, Inc.
	* All Rights Reserved.
	*
	* This program is free software; you can redistribute it and/or
	* modify it under the terms of the GNU General Public License as
	* published by the Free Software Foundation.
	*
	* This program is distributed in the hope that it would be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	*/
	#ifndef __XFS_DINODE_H__
	#define __XFS_DINODE_H__

	struct xfs_buf;
	struct xfs_mount;

	#define XFS_DINODE_VERSION_1 1
	#define XFS_DINODE_VERSION_2 2
	#define XFS_DINODE_GOOD_VERSION(v) \
	(((v) == XFS_DINODE_VERSION_1 \|\| (v) == XFS_DINODE_VERSION_2))
	#define XFS_DINODE_MAGIC 0x494e /* 'IN' */

	/*
	* Disk inode structure.
	* This is just the header; the inode is expanded to fill a variable size
	* with the last field expanding. It is split into the core and "other"
	* because we only need the core part in the in-core inode.
	*/
	typedef struct xfs_timestamp {
	__be32 t_sec; /* timestamp seconds */
	__be32 t_nsec; /* timestamp nanoseconds */
	} xfs_timestamp_t;

	/*
	* Note: Coordinate changes to this structure with the XFS_DI_* #defines
	* below, the offsets table in xfs_ialloc_log_di() and struct xfs_icdinode
	* in xfs_inode.h.
	*/
	typedef struct xfs_dinode_core {
	__be16 di_magic; /* inode magic # = XFS_DINODE_MAGIC */
	__be16 di_mode; /* mode and type of file */
	__u8 di_version; /* inode version */
	__u8 di_format; /* format of di_c data */
	__be16 di_onlink; /* old number of links to file */
	__be32 di_uid; /* owner's user id */
	__be32 di_gid; /* owner's group id */
	__be32 di_nlink; /* number of links to file */
	__be16 di_projid; /* owner's project id */
	__u8 di_pad[8]; /* unused, zeroed space */
	__be16 di_flushiter; /* incremented on flush */
	xfs_timestamp_t di_atime; /* time last accessed */
	xfs_timestamp_t di_mtime; /* time last modified */
	xfs_timestamp_t di_ctime; /* time created/inode modified */
	__be64 di_size; /* number of bytes in file */
	__be64 di_nblocks; /* # of direct & btree blocks used */
	__be32 di_extsize; /* basic/minimum extent size for file */
	__be32 di_nextents; /* number of extents in data fork */
	__be16 di_anextents; /* number of extents in attribute fork*/
	__u8 di_forkoff; /* attr fork offs, <<3 for 64b align */
	__s8 di_aformat; /* format of attr fork's data */
	__be32 di_dmevmask; /* DMIG event mask */
	__be16 di_dmstate; /* DMIG state info */
	__be16 di_flags; /* random flags, XFS_DIFLAG_... */
	__be32 di_gen; /* generation number */
	} xfs_dinode_core_t;

	#define DI_MAX_FLUSH 0xffff

	typedef struct xfs_dinode
	{
	xfs_dinode_core_t di_core;
	/*
	* In adding anything between the core and the union, be
	* sure to update the macros like XFS_LITINO below and
	* XFS_BMAP_RBLOCK_DSIZE in xfs_bmap_btree.h.
	*/
	__be32 di_next_unlinked;/* agi unlinked list ptr */
	union {
	xfs_bmdr_block_t di_bmbt; /* btree root block */
	xfs_bmbt_rec_32_t di_bmx[1]; /* extent list */
	xfs_dir2_sf_t di_dir2sf; /* shortform directory v2 */
	char di_c[1]; /* local contents */
	__be32 di_dev; /* device for S_IFCHR/S_IFBLK */
	uuid_t di_muuid; /* mount point value */
	char di_symlink[1]; /* local symbolic link */
	} di_u;
	union {
	xfs_bmdr_block_t di_abmbt; /* btree root block */
	xfs_bmbt_rec_32_t di_abmx[1]; /* extent list */
	xfs_attr_shortform_t di_attrsf; /* shortform attribute list */
	} di_a;
	} xfs_dinode_t;

	/*
	* The 32 bit link count in the inode theoretically maxes out at UINT_MAX.
	* Since the pathconf interface is signed, we use 2^31 - 1 instead.
	* The old inode format had a 16 bit link count, so its maximum is USHRT_MAX.
	*/
	#define XFS_MAXLINK ((1U << 31) - 1U)
	#define XFS_MAXLINK_1 65535U

	/*
	* Bit names for logging disk inodes only
	*/
	#define XFS_DI_MAGIC 0x0000001
	#define XFS_DI_MODE 0x0000002
	#define XFS_DI_VERSION 0x0000004
	#define XFS_DI_FORMAT 0x0000008
	#define XFS_DI_ONLINK 0x0000010
	#define XFS_DI_UID 0x0000020
	#define XFS_DI_GID 0x0000040
	#define XFS_DI_NLINK 0x0000080
	#define XFS_DI_PROJID 0x0000100
	#define XFS_DI_PAD 0x0000200
	#define XFS_DI_ATIME 0x0000400
	#define XFS_DI_MTIME 0x0000800
	#define XFS_DI_CTIME 0x0001000
	#define XFS_DI_SIZE 0x0002000
	#define XFS_DI_NBLOCKS 0x0004000
	#define XFS_DI_EXTSIZE 0x0008000
	#define XFS_DI_NEXTENTS 0x0010000
	#define XFS_DI_NAEXTENTS 0x0020000
	#define XFS_DI_FORKOFF 0x0040000
	#define XFS_DI_AFORMAT 0x0080000
	#define XFS_DI_DMEVMASK 0x0100000
	#define XFS_DI_DMSTATE 0x0200000
	#define XFS_DI_FLAGS 0x0400000
	#define XFS_DI_GEN 0x0800000
	#define XFS_DI_NEXT_UNLINKED 0x1000000
	#define XFS_DI_U 0x2000000
	#define XFS_DI_A 0x4000000
	#define XFS_DI_NUM_BITS 27
	#define XFS_DI_ALL_BITS ((1 << XFS_DI_NUM_BITS) - 1)
	#define XFS_DI_CORE_BITS (XFS_DI_ALL_BITS & ~(XFS_DI_U\|XFS_DI_A))

	/*
	* Values for di_format
	*/
	typedef enum xfs_dinode_fmt
	{
	XFS_DINODE_FMT_DEV, /* CHR, BLK: di_dev */
	XFS_DINODE_FMT_LOCAL, /* DIR, REG: di_c */
	/* LNK: di_symlink */
	XFS_DINODE_FMT_EXTENTS, /* DIR, REG, LNK: di_bmx */
	XFS_DINODE_FMT_BTREE, /* DIR, REG, LNK: di_bmbt */
	XFS_DINODE_FMT_UUID /* MNT: di_uuid */
	} xfs_dinode_fmt_t;

	/*
	* Inode minimum and maximum sizes.
	*/
	#define XFS_DINODE_MIN_LOG 8
	#define XFS_DINODE_MAX_LOG 11
	#define XFS_DINODE_MIN_SIZE (1 << XFS_DINODE_MIN_LOG)
	#define XFS_DINODE_MAX_SIZE (1 << XFS_DINODE_MAX_LOG)

	/*
	* Inode size for given fs.
	*/
	#define XFS_LITINO(mp) ((mp)->m_litino)
	#define XFS_BROOT_SIZE_ADJ \
	(sizeof(xfs_bmbt_block_t) - sizeof(xfs_bmdr_block_t))

	/*
	* Inode data & attribute fork sizes, per inode.
	*/
	#define XFS_CFORK_Q(dcp) ((dcp)->di_forkoff != 0)
	#define XFS_CFORK_Q_DISK(dcp) ((dcp)->di_forkoff != 0)

	#define XFS_CFORK_BOFF(dcp) ((int)((dcp)->di_forkoff << 3))
	#define XFS_CFORK_BOFF_DISK(dcp) ((int)((dcp)->di_forkoff << 3))

	#define XFS_CFORK_DSIZE_DISK(dcp,mp) \
	(XFS_CFORK_Q_DISK(dcp) ? XFS_CFORK_BOFF_DISK(dcp) : XFS_LITINO(mp))
	#define XFS_CFORK_DSIZE(dcp,mp) \
	(XFS_CFORK_Q(dcp) ? XFS_CFORK_BOFF(dcp) : XFS_LITINO(mp))

	#define XFS_CFORK_ASIZE_DISK(dcp,mp) \
	(XFS_CFORK_Q_DISK(dcp) ? XFS_LITINO(mp) - XFS_CFORK_BOFF_DISK(dcp) : 0)
	#define XFS_CFORK_ASIZE(dcp,mp) \
	(XFS_CFORK_Q(dcp) ? XFS_LITINO(mp) - XFS_CFORK_BOFF(dcp) : 0)

	#define XFS_CFORK_SIZE_DISK(dcp,mp,w) \
	((w) == XFS_DATA_FORK ? \
	XFS_CFORK_DSIZE_DISK(dcp, mp) : \
	XFS_CFORK_ASIZE_DISK(dcp, mp))
	#define XFS_CFORK_SIZE(dcp,mp,w) \
	((w) == XFS_DATA_FORK ? \
	XFS_CFORK_DSIZE(dcp, mp) : XFS_CFORK_ASIZE(dcp, mp))

	#define XFS_DFORK_DSIZE(dip,mp) \
	XFS_CFORK_DSIZE_DISK(&(dip)->di_core, mp)
	#define XFS_DFORK_DSIZE_HOST(dip,mp) \
	XFS_CFORK_DSIZE(&(dip)->di_core, mp)
	#define XFS_DFORK_ASIZE(dip,mp) \
	XFS_CFORK_ASIZE_DISK(&(dip)->di_core, mp)
	#define XFS_DFORK_ASIZE_HOST(dip,mp) \
	XFS_CFORK_ASIZE(&(dip)->di_core, mp)
	#define XFS_DFORK_SIZE(dip,mp,w) \
	XFS_CFORK_SIZE_DISK(&(dip)->di_core, mp, w)
	#define XFS_DFORK_SIZE_HOST(dip,mp,w) \
	XFS_CFORK_SIZE(&(dip)->di_core, mp, w)

	#define XFS_DFORK_Q(dip) XFS_CFORK_Q_DISK(&(dip)->di_core)
	#define XFS_DFORK_BOFF(dip) XFS_CFORK_BOFF_DISK(&(dip)->di_core)
	#define XFS_DFORK_DPTR(dip) ((dip)->di_u.di_c)
	#define XFS_DFORK_APTR(dip) \
	((dip)->di_u.di_c + XFS_DFORK_BOFF(dip))
	#define XFS_DFORK_PTR(dip,w) \
	((w) == XFS_DATA_FORK ? XFS_DFORK_DPTR(dip) : XFS_DFORK_APTR(dip))
	#define XFS_CFORK_FORMAT(dcp,w) \
	((w) == XFS_DATA_FORK ? (dcp)->di_format : (dcp)->di_aformat)
	#define XFS_CFORK_FMT_SET(dcp,w,n) \
	((w) == XFS_DATA_FORK ? \
	((dcp)->di_format = (n)) : ((dcp)->di_aformat = (n)))
	#define XFS_DFORK_FORMAT(dip,w) XFS_CFORK_FORMAT(&(dip)->di_core, w)

	#define XFS_CFORK_NEXTENTS_DISK(dcp,w) \
	((w) == XFS_DATA_FORK ? \
	be32_to_cpu((dcp)->di_nextents) : \
	be16_to_cpu((dcp)->di_anextents))
	#define XFS_CFORK_NEXTENTS(dcp,w) \
	((w) == XFS_DATA_FORK ? (dcp)->di_nextents : (dcp)->di_anextents)
	#define XFS_DFORK_NEXTENTS(dip,w) XFS_CFORK_NEXTENTS_DISK(&(dip)->di_core, w)
	#define XFS_DFORK_NEXTENTS_HOST(dip,w) XFS_CFORK_NEXTENTS(&(dip)->di_core, w)

	#define XFS_CFORK_NEXT_SET(dcp,w,n) \
	((w) == XFS_DATA_FORK ? \
	((dcp)->di_nextents = (n)) : ((dcp)->di_anextents = (n)))

	#define XFS_BUF_TO_DINODE(bp) ((xfs_dinode_t *)XFS_BUF_PTR(bp))

	/*
	* Values for di_flags
	* There should be a one-to-one correspondence between these flags and the
	* XFS_XFLAG_s.
	*/
	#define XFS_DIFLAG_REALTIME_BIT 0 /* file's blocks come from rt area */
	#define XFS_DIFLAG_PREALLOC_BIT 1 /* file space has been preallocated */
	#define XFS_DIFLAG_NEWRTBM_BIT 2 /* for rtbitmap inode, new format */
	#define XFS_DIFLAG_IMMUTABLE_BIT 3 /* inode is immutable */
	#define XFS_DIFLAG_APPEND_BIT 4 /* inode is append-only */
	#define XFS_DIFLAG_SYNC_BIT 5 /* inode is written synchronously */
	#define XFS_DIFLAG_NOATIME_BIT 6 /* do not update atime */
	#define XFS_DIFLAG_NODUMP_BIT 7 /* do not dump */
	#define XFS_DIFLAG_RTINHERIT_BIT 8 /* create with realtime bit set */
	#define XFS_DIFLAG_PROJINHERIT_BIT 9 /* create with parents projid */
	#define XFS_DIFLAG_NOSYMLINKS_BIT 10 /* disallow symlink creation */
	#define XFS_DIFLAG_EXTSIZE_BIT 11 /* inode extent size allocator hint */
	#define XFS_DIFLAG_EXTSZINHERIT_BIT 12 /* inherit inode extent size */
	#define XFS_DIFLAG_NODEFRAG_BIT 13 /* do not reorganize/defragment */
	#define XFS_DIFLAG_FILESTREAM_BIT 14 /* use filestream allocator */
	#define XFS_DIFLAG_REALTIME (1 << XFS_DIFLAG_REALTIME_BIT)
	#define XFS_DIFLAG_PREALLOC (1 << XFS_DIFLAG_PREALLOC_BIT)
	#define XFS_DIFLAG_NEWRTBM (1 << XFS_DIFLAG_NEWRTBM_BIT)
	#define XFS_DIFLAG_IMMUTABLE (1 << XFS_DIFLAG_IMMUTABLE_BIT)
	#define XFS_DIFLAG_APPEND (1 << XFS_DIFLAG_APPEND_BIT)
	#define XFS_DIFLAG_SYNC (1 << XFS_DIFLAG_SYNC_BIT)
	#define XFS_DIFLAG_NOATIME (1 << XFS_DIFLAG_NOATIME_BIT)
	#define XFS_DIFLAG_NODUMP (1 << XFS_DIFLAG_NODUMP_BIT)
	#define XFS_DIFLAG_RTINHERIT (1 << XFS_DIFLAG_RTINHERIT_BIT)
	#define XFS_DIFLAG_PROJINHERIT (1 << XFS_DIFLAG_PROJINHERIT_BIT)
	#define XFS_DIFLAG_NOSYMLINKS (1 << XFS_DIFLAG_NOSYMLINKS_BIT)
	#define XFS_DIFLAG_EXTSIZE (1 << XFS_DIFLAG_EXTSIZE_BIT)
	#define XFS_DIFLAG_EXTSZINHERIT (1 << XFS_DIFLAG_EXTSZINHERIT_BIT)
	#define XFS_DIFLAG_NODEFRAG (1 << XFS_DIFLAG_NODEFRAG_BIT)
	#define XFS_DIFLAG_FILESTREAM (1 << XFS_DIFLAG_FILESTREAM_BIT)

	#define XFS_DIFLAG_ANY \
	(XFS_DIFLAG_REALTIME \| XFS_DIFLAG_PREALLOC \| XFS_DIFLAG_NEWRTBM \| \
	XFS_DIFLAG_IMMUTABLE \| XFS_DIFLAG_APPEND \| XFS_DIFLAG_SYNC \| \
	XFS_DIFLAG_NOATIME \| XFS_DIFLAG_NODUMP \| XFS_DIFLAG_RTINHERIT \| \
	XFS_DIFLAG_PROJINHERIT \| XFS_DIFLAG_NOSYMLINKS \| XFS_DIFLAG_EXTSIZE \| \
	XFS_DIFLAG_EXTSZINHERIT \| XFS_DIFLAG_NODEFRAG \| XFS_DIFLAG_FILESTREAM)

	#endif /* __XFS_DINODE_H__ */