Release 4.7 include/uapi/linux/romfs_fs.h

#ifndef __LINUX_ROMFS_FS_H

#define __LINUX_ROMFS_FS_H

#include <linux/types.h>
#include <linux/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
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