kinit/fstype/gfs2_fs.h

#ifndef __GFS2_FS_H
#define __GFS2_FS_H

#define GFS2_MAGIC              0x01161970
#define GFS2_FORMAT_FS		1801
#define GFS2_FORMAT_MULTI	1900


/*
 * An on-disk inode number
 */
struct gfs2_inum {
	__be64 no_formal_ino;
	__be64 no_addr;
};

/*
 * Generic metadata head structure
 * Every inplace buffer logged in the journal must start with this.
 */
struct gfs2_meta_header {
	uint32_t mh_magic;
	uint32_t mh_type;
	uint64_t __pad0;          /* Was generation number in gfs1 */
	uint32_t mh_format;
	uint32_t __pad1;          /* Was incarnation number in gfs1 */
};

/* Requirement:  GFS2_LOCKNAME_LEN % 8 == 0
 *    Includes: the fencing zero at the end */
#define GFS2_LOCKNAME_LEN       64

/*
 * super-block structure
 */
struct gfs2_sb {
	struct gfs2_meta_header sb_header;

	uint32_t sb_fs_format;
	uint32_t sb_multihost_format;
	uint32_t  __pad0;  /* Was superblock flags in gfs1 */

	uint32_t sb_bsize;
	uint32_t sb_bsize_shift;
	uint32_t __pad1;   /* Was journal segment size in gfs1 */

	struct gfs2_inum sb_master_dir; /* Was jindex dinode in gfs1 */
	struct gfs2_inum __pad2; /* Was rindex dinode in gfs1 */
	struct gfs2_inum sb_root_dir;

	char sb_lockproto[GFS2_LOCKNAME_LEN];
	char sb_locktable[GFS2_LOCKNAME_LEN];
	/* In gfs1, quota and license dinodes followed */
} __attribute__ ((__packed__));

#endif /* __GFS2_FS_H */
1	niro	815	#ifndef __GFS2_FS_H
2			#define __GFS2_FS_H
3
4			#define GFS2_MAGIC 0x01161970
5			#define GFS2_FORMAT_FS 1801
6			#define GFS2_FORMAT_MULTI 1900
7
8
9			/*
10			* An on-disk inode number
11			*/
12			struct gfs2_inum {
13			__be64 no_formal_ino;
14			__be64 no_addr;
15			};
16
17			/*
18			* Generic metadata head structure
19			* Every inplace buffer logged in the journal must start with this.
20			*/
21			struct gfs2_meta_header {
22			uint32_t mh_magic;
23			uint32_t mh_type;
24			uint64_t __pad0; /* Was generation number in gfs1 */
25			uint32_t mh_format;
26			uint32_t __pad1; /* Was incarnation number in gfs1 */
27			};
28
29			/* Requirement: GFS2_LOCKNAME_LEN % 8 == 0
30			* Includes: the fencing zero at the end */
31			#define GFS2_LOCKNAME_LEN 64
32
33			/*
34			* super-block structure
35			*/
36			struct gfs2_sb {
37			struct gfs2_meta_header sb_header;
38
39			uint32_t sb_fs_format;
40			uint32_t sb_multihost_format;
41			uint32_t __pad0; /* Was superblock flags in gfs1 */
42
43			uint32_t sb_bsize;
44			uint32_t sb_bsize_shift;
45			uint32_t __pad1; /* Was journal segment size in gfs1 */
46
47			struct gfs2_inum sb_master_dir; /* Was jindex dinode in gfs1 */
48			struct gfs2_inum __pad2; /* Was rindex dinode in gfs1 */
49			struct gfs2_inum sb_root_dir;
50
51			char sb_lockproto[GFS2_LOCKNAME_LEN];
52			char sb_locktable[GFS2_LOCKNAME_LEN];
53			/* In gfs1, quota and license dinodes followed */
54			} __attribute__ ((__packed__));
55
56			#endif /* __GFS2_FS_H */