2 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 #ifndef __XFS_INODE_BUF_H__
19 #define __XFS_INODE_BUF_H__
25 * In memory representation of the XFS inode. This is held in the in-core struct
26 * xfs_inode and represents the current on disk values but the structure is not
27 * in on-disk format. That is, this structure is always translated to on-disk
28 * format specific structures at the appropriate time.
31 __uint16_t di_mode
; /* mode and type of file */
32 __int8_t di_version
; /* inode version */
33 __int8_t di_format
; /* format of di_c data */
34 __uint16_t di_flushiter
; /* incremented on flush */
35 __uint32_t di_uid
; /* owner's user id */
36 __uint32_t di_gid
; /* owner's group id */
37 __uint32_t di_nlink
; /* number of links to file */
38 __uint16_t di_projid_lo
; /* lower part of owner's project id */
39 __uint16_t di_projid_hi
; /* higher part of owner's project id */
40 xfs_fsize_t di_size
; /* number of bytes in file */
41 xfs_rfsblock_t di_nblocks
; /* # of direct & btree blocks used */
42 xfs_extlen_t di_extsize
; /* basic/minimum extent size for file */
43 xfs_extnum_t di_nextents
; /* number of extents in data fork */
44 xfs_aextnum_t di_anextents
; /* number of extents in attribute fork*/
45 __uint8_t di_forkoff
; /* attr fork offs, <<3 for 64b align */
46 __int8_t di_aformat
; /* format of attr fork's data */
47 __uint32_t di_dmevmask
; /* DMIG event mask */
48 __uint16_t di_dmstate
; /* DMIG state info */
49 __uint16_t di_flags
; /* random flags, XFS_DIFLAG_... */
50 __uint32_t di_gen
; /* generation number */
52 __uint64_t di_changecount
; /* number of attribute changes */
53 __uint64_t di_flags2
; /* more random flags */
55 xfs_ictimestamp_t di_crtime
; /* time created */
59 * Inode location information. Stored in the inode and passed to
60 * xfs_imap_to_bp() to get a buffer and dinode for a given inode.
63 xfs_daddr_t im_blkno
; /* starting BB of inode chunk */
64 ushort im_len
; /* length in BBs of inode chunk */
65 ushort im_boffset
; /* inode offset in block in bytes */
68 int xfs_imap_to_bp(struct xfs_mount
*, struct xfs_trans
*,
69 struct xfs_imap
*, struct xfs_dinode
**,
70 struct xfs_buf
**, uint
, uint
);
71 int xfs_iread(struct xfs_mount
*, struct xfs_trans
*,
72 struct xfs_inode
*, uint
);
73 void xfs_dinode_calc_crc(struct xfs_mount
*, struct xfs_dinode
*);
74 void xfs_inode_to_disk(struct xfs_inode
*ip
, struct xfs_dinode
*to
,
76 void xfs_inode_from_disk(struct xfs_inode
*ip
, struct xfs_dinode
*from
);
77 void xfs_log_dinode_to_disk(struct xfs_log_dinode
*from
,
78 struct xfs_dinode
*to
);
81 void xfs_inobp_check(struct xfs_mount
*, struct xfs_buf
*);
83 #define xfs_inobp_check(mp, bp)
86 #endif /* __XFS_INODE_BUF_H__ */