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4 * Copyright (c) 1999 Al Smith
6 * Portions derived from IRIX header files (c) 1988 Silicon Graphics
10 #define __EFS_FS_I_H__
12 typedef int32_t efs_block_t
;
13 typedef uint32_t efs_ino_t
;
15 #define EFS_DIRECTEXTENTS 12
18 * layout of an extent, in memory and on disk. 8 bytes exactly.
20 typedef union extent_u
{
23 unsigned int ex_magic
:8; /* magic # (zero) */
24 unsigned int ex_bn
:24; /* basic block */
25 unsigned int ex_length
:8; /* numblocks in this extent */
26 unsigned int ex_offset
:24; /* logical offset into file */
30 typedef struct edevs
{
36 * extent based filesystem inode as it appears on disk. The efs inode
37 * is exactly 128 bytes long.
40 __be16 di_mode
; /* mode and type of file */
41 __be16 di_nlink
; /* number of links to file */
42 __be16 di_uid
; /* owner's user id */
43 __be16 di_gid
; /* owner's group id */
44 __be32 di_size
; /* number of bytes in file */
45 __be32 di_atime
; /* time last accessed */
46 __be32 di_mtime
; /* time last modified */
47 __be32 di_ctime
; /* time created */
48 __be32 di_gen
; /* generation number */
49 __be16 di_numextents
; /* # of extents */
50 u_char di_version
; /* version of inode */
51 u_char di_spare
; /* spare - used by AFS */
53 efs_extent di_extents
[EFS_DIRECTEXTENTS
];
54 efs_devs di_dev
; /* device for IFCHR/IFBLK */
58 /* efs inode storage in memory */
59 struct efs_inode_info
{
63 efs_extent extents
[EFS_DIRECTEXTENTS
];
64 struct inode vfs_inode
;
67 #endif /* __EFS_FS_I_H__ */