Logo Search packages:      
Sourcecode: lde version File versions  Download package



/* FOR LDE, BLOCK_SIZE lifted from <linux/fs.h> */

#include <asm/types.h>
#define BLOCK_SIZE_BITS 10

/* END LDE */

 * The minix filesystem constants/structures

 * Thanks to Kees J Bot for sending me the definitions of the new
 * minix filesystem (aka V2) with bigger inodes and 32-bit block
 * pointers.

#define MINIX_ROOT_INO 1

/* Not the same as the bogus LINK_MAX in <linux/limits.h>. Oh well. */
#define MINIX_LINK_MAX  250
#define MINIX2_LINK_MAX 65530

#define MINIX_I_MAP_SLOTS     8
#define MINIX_Z_MAP_SLOTS     64
#define MINIX_SUPER_MAGIC     0x137F            /* original minix fs */
#define MINIX_SUPER_MAGIC2    0x138F            /* minix fs, 30 char names */
#define MINIX2_SUPER_MAGIC    0x2468            /* minix V2 fs */
#define MINIX2_SUPER_MAGIC2   0x2478            /* minix V2 fs, 30 char names */
#define MINIX_VALID_FS        0x0001            /* Clean fs. */
#define MINIX_ERROR_FS        0x0002            /* fs has errors. */

#define MINIX_INODES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix_inode)))
#define MINIX2_INODES_PER_BLOCK ((BLOCK_SIZE)/(sizeof (struct minix2_inode)))

#define MINIX_V1        0x0001            /* original minix fs */
#define MINIX_V2        0x0002            /* minix V2 fs */

#define INODE_VERSION(inode)  inode->i_sb->u.minix_sb.s_version

 * This is the original minix inode layout on disk.
 * Note the 8-bit gid and atime and ctime.
struct minix_inode {
      __u16 i_mode;
      __u16 i_uid;
      __u32 i_size;
      __u32 i_time;
      __u8  i_gid;
      __u8  i_nlinks;
      __u16 i_zone[9];

 * The new minix inode has all the time entries, as well as
 * long block numbers and a third indirect block (7+1+1+1
 * instead of 7+1+1). Also, some previously 8-bit values are
 * now 16-bit. The inode is now 64 bytes instead of 32.
struct minix2_inode {
      __u16 i_mode;
      __u16 i_nlinks;
      __u16 i_uid;
      __u16 i_gid;
      __u32 i_size;
      __u32 i_atime;
      __u32 i_mtime;
      __u32 i_ctime;
      __u32 i_zone[10];

 * minix super-block data on disk
struct minix_super_block {
      __u16 s_ninodes;
      __u16 s_nzones;
      __u16 s_imap_blocks;
      __u16 s_zmap_blocks;
      __u16 s_firstdatazone;
      __u16 s_log_zone_size;
      __u32 s_max_size;
      __u16 s_magic;
      __u16 s_state;
      __u32 s_zones;

struct minix_dir_entry {
      __u16 inode;
      char name[0];

#ifdef __KERNEL__

extern struct dentry *minix_lookup(struct inode * dir, struct dentry *dentry);
extern int minix_create(struct inode * dir, struct dentry *dentry, int mode);
extern int minix_mkdir(struct inode * dir, struct dentry *dentry, int mode);
extern int minix_rmdir(struct inode * dir, struct dentry *dentry);
extern int minix_unlink(struct inode * dir, struct dentry *dentry);
extern int minix_symlink(struct inode * inode, struct dentry *dentry,
      const char * symname);
extern int minix_link(struct dentry * old_dentry, struct inode * dir, struct dentry *dentry);
extern int minix_mknod(struct inode * dir, struct dentry *dentry, int mode, int rdev);
extern int minix_rename(struct inode * old_dir, struct dentry *old_dentry,
                  struct inode * new_dir, struct dentry *new_dentry);
extern struct inode * minix_new_inode(const struct inode * dir);
extern void minix_free_inode(struct inode * inode);
extern unsigned long minix_count_free_inodes(struct super_block *sb);
extern int minix_new_block(struct super_block * sb);
extern void minix_free_block(struct super_block * sb, int block);
extern unsigned long minix_count_free_blocks(struct super_block *sb);

extern int minix_bmap(struct inode *,int);

extern struct buffer_head * minix_getblk(struct inode *, int, int);
extern struct buffer_head * minix_bread(struct inode *, int, int);

extern void minix_truncate(struct inode *);
extern int init_minix_fs(void);
extern int minix_sync_inode(struct inode *);
extern int minix_sync_file(struct file *, struct dentry *);

extern struct inode_operations minix_file_inode_operations;
extern struct inode_operations minix_dir_inode_operations;
extern struct inode_operations minix_symlink_inode_operations;
extern struct dentry_operations minix_dentry_operations;

#endif /* __KERNEL__ */


Generated by  Doxygen 1.6.0   Back to index