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38 * @(#)inode.h 8.9 (Berkeley) 5/14/95
39 * $FreeBSD: src/sys/ufs/ufs/inode.h,v 1.28.2.2 2001/09/29 12:52:52 iedowse Exp $
42 #ifndef _VFS_GNU_EXT2FS_INODE_H_
43 #define _VFS_GNU_EXT2FS_INODE_H_
45 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
51 #include <sys/lockf.h>
57 #include <sys/queue.h>
62 * The size of a logical block number.
64 typedef long ext2_lbn_t;
67 * This must agree with the definition in "dir.h"
69 #define doff_t int32_t
71 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
74 * An EXT2FS inode is basically a UFS inode with some spare fields
75 * redefined and a different superblock structure.
78 struct inode *i_next;/* Hash chain */
79 struct vnode *i_vnode;/* Vnode associated with this inode. */
80 struct vnode *i_devvp;/* Vnode for block I/O. */
81 uint32_t i_flag; /* flags, see below */
82 cdev_t i_dev; /* Device associated with the inode. */
83 ino_t i_number; /* The identity of the inode. */
84 int i_effnlink; /* i_nlink when I/O completes */
86 struct ext2_sb_info *i_e2fs; /* EXT2FS */
87 struct ext2_dquot *i_dquot[MAXQUOTAS]; /* Dquot structures. */
88 u_quad_t i_modrev; /* Revision level for NFS lease. */
89 struct lockf i_lockf;/* Head of byte-level lock list. */
91 * Side effects; used during directory lookup.
93 int32_t i_count; /* Size of free slot in directory. */
94 doff_t i_endoff; /* End of useful stuff in directory. */
95 doff_t i_diroff; /* Offset in dir, where we found last entry. */
96 doff_t i_offset; /* Offset of free space in directory. */
97 ino_t i_ino; /* Inode number of found directory. */
98 uint32_t i_reclen; /* Size of found directory entry. */
99 uint32_t i_spare[3]; /* XXX actually non-spare (for ext2fs). */
101 struct dirhash *i_dirhash; /* Hashing for large directories */
103 * The on-disk dinode itself (128 bytes)
105 struct ext2_dinode i_din;
110 #define i_atime i_din.di_atime
111 #define i_atimensec i_din.di_atimensec
112 #define i_blocks i_din.di_blocks
113 #define i_ctime i_din.di_ctime
114 #define i_ctimensec i_din.di_ctimensec
115 #define i_db i_din.di_db
116 #define i_flags i_din.di_flags
117 #define i_gen i_din.di_gen
118 #define i_gid i_din.di_gid
119 #define i_ib i_din.di_ib
120 #define i_mode i_din.di_mode
121 #define i_mtime i_din.di_mtime
122 #define i_mtimensec i_din.di_mtimensec
123 #define i_nlink i_din.di_nlink
124 #define i_rdev i_din.di_rdev
125 #define i_shortlink i_din.di_shortlink
126 #define i_size i_din.di_size
127 #define i_uid i_din.di_uid
133 /* These flags are kept in i_flag. */
134 #define IN_ACCESS 0x0001 /* Access time update request. */
135 #define IN_CHANGE 0x0002 /* Inode change time update request. */
136 #define IN_UPDATE 0x0004 /* Modification time update request. */
137 #define IN_MODIFIED 0x0008 /* Inode has been modified. */
138 #define IN_RENAME 0x0010 /* Inode is being renamed. */
139 #define IN_SHLOCK 0x0020 /* File has shared lock. */
140 #define IN_EXLOCK 0x0040 /* File has exclusive lock. */
141 #define IN_HASHED 0x0080 /* Inode is on hash list */
142 #define IN_LAZYMOD 0x0100 /* Modified, but don't write yet. */
144 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
147 * Structure used to pass around logical block paths generated by
148 * ext2_getlbns and used by truncate and bmap code.
151 ext2_daddr_t in_lbn; /* Logical block number. */
152 int in_off; /* Offset in buffer. */
153 int in_exists; /* Flag if the block exists. */
156 /* Convert between inode pointers and vnode pointers. */
157 #define VTOI(vp) ((struct inode *)(vp)->v_data)
158 #define ITOV(ip) ((ip)->i_vnode)
160 /* Determine if soft dependencies are being done */
161 #define DOINGSOFTDEP(vp) ((vp)->v_mount->mnt_flag & MNT_SOFTDEP)
162 #define DOINGASYNC(vp) ((vp)->v_mount->mnt_flag & MNT_ASYNC)
164 /* This overlays the fid structure (see mount.h). */
166 uint16_t ufid_len; /* Length of structure. */
167 uint16_t ufid_pad; /* Force 32-bit alignment. */
168 ino_t ufid_ino; /* File number (ino). */
169 int32_t ufid_gen; /* Generation number. */
171 #endif /* _KERNEL || _KERNEL_STRUCTURES */
173 #endif /* !_VFS_GNU_EXT2FS_INODE_H_ */