kinit/fstype/romfs_fs.h

#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)

#endif
1	#ifndef __LINUX_ROMFS_FS_H
2	#define __LINUX_ROMFS_FS_H
3
4	/* The basic structures of the romfs filesystem */
5
6	#define ROMBSIZE BLOCK_SIZE
7	#define ROMBSBITS BLOCK_SIZE_BITS
8	#define ROMBMASK (ROMBSIZE-1)
9	#define ROMFS_MAGIC 0x7275
10
11	#define ROMFS_MAXFN 128
12
13	#define __mkw(h,l) (((h)&0x00ff)<< 8\|((l)&0x00ff))
14	#define __mkl(h,l) (((h)&0xffff)<<16\|((l)&0xffff))
15	#define __mk4(a,b,c,d) cpu_to_be32(__mkl(__mkw(a,b),__mkw(c,d)))
16	#define ROMSB_WORD0 __mk4('-','r','o','m')
17	#define ROMSB_WORD1 __mk4('1','f','s','-')
18
19	/* On-disk "super block" */
20
21	struct romfs_super_block {
22	__be32 word0;
23	__be32 word1;
24	__be32 size;
25	__be32 checksum;
26	char name[0]; /* volume name */
27	};
28
29	/* On disk inode */
30
31	struct romfs_inode {
32	__be32 next; /* low 4 bits see ROMFH_ */
33	__be32 spec;
34	__be32 size;
35	__be32 checksum;
36	char name[0];
37	};
38
39	#define ROMFH_TYPE 7
40	#define ROMFH_HRD 0
41	#define ROMFH_DIR 1
42	#define ROMFH_REG 2
43	#define ROMFH_SYM 3
44	#define ROMFH_BLK 4
45	#define ROMFH_CHR 5
46	#define ROMFH_SCK 6
47	#define ROMFH_FIF 7
48	#define ROMFH_EXEC 8
49
50	/* Alignment */
51
52	#define ROMFH_SIZE 16
53	#define ROMFH_PAD (ROMFH_SIZE-1)
54	#define ROMFH_MASK (~ROMFH_PAD)
55
56	#endif