| #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 __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 { |
| char name[0]; /* volume name */ |
| __be32 next; /* low 4 bits see ROMFH_ */ |
| #define ROMFH_PAD (ROMFH_SIZE-1) |
| #define ROMFH_MASK (~ROMFH_PAD) |