diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/efs_dir.h |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/linux/efs_dir.h')
-rw-r--r-- | include/linux/efs_dir.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/include/linux/efs_dir.h b/include/linux/efs_dir.h new file mode 100644 index 00000000000..a09ec010569 --- /dev/null +++ b/include/linux/efs_dir.h | |||
@@ -0,0 +1,42 @@ | |||
1 | /* | ||
2 | * efs_dir.h | ||
3 | * | ||
4 | * Copyright (c) 1999 Al Smith | ||
5 | */ | ||
6 | |||
7 | #ifndef __EFS_DIR_H__ | ||
8 | #define __EFS_DIR_H__ | ||
9 | |||
10 | #define EFS_DIRBSIZE_BITS EFS_BLOCKSIZE_BITS | ||
11 | #define EFS_DIRBSIZE (1 << EFS_DIRBSIZE_BITS) | ||
12 | |||
13 | struct efs_dentry { | ||
14 | __be32 inode; | ||
15 | unsigned char namelen; | ||
16 | char name[3]; | ||
17 | }; | ||
18 | |||
19 | #define EFS_DENTSIZE (sizeof(struct efs_dentry) - 3 + 1) | ||
20 | #define EFS_MAXNAMELEN ((1 << (sizeof(char) * 8)) - 1) | ||
21 | |||
22 | #define EFS_DIRBLK_HEADERSIZE 4 | ||
23 | #define EFS_DIRBLK_MAGIC 0xbeef /* moo */ | ||
24 | |||
25 | struct efs_dir { | ||
26 | __be16 magic; | ||
27 | unsigned char firstused; | ||
28 | unsigned char slots; | ||
29 | |||
30 | unsigned char space[EFS_DIRBSIZE - EFS_DIRBLK_HEADERSIZE]; | ||
31 | }; | ||
32 | |||
33 | #define EFS_MAXENTS \ | ||
34 | ((EFS_DIRBSIZE - EFS_DIRBLK_HEADERSIZE) / \ | ||
35 | (EFS_DENTSIZE + sizeof(char))) | ||
36 | |||
37 | #define EFS_SLOTAT(dir, slot) EFS_REALOFF((dir)->space[slot]) | ||
38 | |||
39 | #define EFS_REALOFF(offset) ((offset << 1)) | ||
40 | |||
41 | #endif /* __EFS_DIR_H__ */ | ||
42 | |||