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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/romfs_fs.h | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
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/romfs_fs.h')
-rw-r--r-- | include/linux/romfs_fs.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/include/linux/romfs_fs.h b/include/linux/romfs_fs.h new file mode 100644 index 000000000000..e20bbf9eb365 --- /dev/null +++ b/include/linux/romfs_fs.h @@ -0,0 +1,61 @@ +#ifndef __LINUX_ROMFS_FS_H +#define __LINUX_ROMFS_FS_H + +/* The basic structures of the romfs filesystem */ + +#define ROMBSIZE BLOCK_SIZE +#define ROMBSBITS BLOCK_SIZE_BITS +#define ROMBMASK (ROMBSIZE-1) +#define ROMFS_MAGIC 0x7275 + +#define ROMFS_MAXFN 128 + +#define __mkw(h,l) (((h)&0x00ff)<< 8|((l)&0x00ff)) +#define __mkl(h,l) (((h)&0xffff)<<16|((l)&0xffff)) +#define __mk4(a,b,c,d) cpu_to_be32(__mkl(__mkw(a,b),__mkw(c,d))) +#define ROMSB_WORD0 __mk4('-','r','o','m') +#define ROMSB_WORD1 __mk4('1','f','s','-') + +/* On-disk "super block" */ + +struct romfs_super_block { + __be32 word0; + __be32 word1; + __be32 size; + __be32 checksum; + char name[0]; /* volume name */ +}; + +/* On disk inode */ + +struct romfs_inode { + __be32 next; /* low 4 bits see ROMFH_ */ + __be32 spec; + __be32 size; + __be32 checksum; + char name[0]; +}; + +#define ROMFH_TYPE 7 +#define ROMFH_HRD 0 +#define ROMFH_DIR 1 +#define ROMFH_REG 2 +#define ROMFH_SYM 3 +#define ROMFH_BLK 4 +#define ROMFH_CHR 5 +#define ROMFH_SCK 6 +#define ROMFH_FIF 7 +#define ROMFH_EXEC 8 + +/* Alignment */ + +#define ROMFH_SIZE 16 +#define ROMFH_PAD (ROMFH_SIZE-1) +#define ROMFH_MASK (~ROMFH_PAD) + +#ifdef __KERNEL__ + +/* Not much now */ + +#endif /* __KERNEL__ */ +#endif |