mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-28 22:54:05 +08:00
ccd979bdbc
The OCFS2 file system module. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com> Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
110 lines
2.9 KiB
C
110 lines
2.9 KiB
C
/* -*- mode: c; c-basic-offset: 8; -*-
|
|
* vim: noexpandtab sw=8 ts=8 sts=0:
|
|
*
|
|
* ocfs1_fs_compat.h
|
|
*
|
|
* OCFS1 volume header definitions. OCFS2 creates valid but unmountable
|
|
* OCFS1 volume headers on the first two sectors of an OCFS2 volume.
|
|
* This allows an OCFS1 volume to see the partition and cleanly fail to
|
|
* mount it.
|
|
*
|
|
* Copyright (C) 2002, 2004 Oracle. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public
|
|
* License, version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public
|
|
* License along with this program; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 021110-1307, USA.
|
|
*/
|
|
|
|
#ifndef _OCFS1_FS_COMPAT_H
|
|
#define _OCFS1_FS_COMPAT_H
|
|
|
|
#define OCFS1_MAX_VOL_SIGNATURE_LEN 128
|
|
#define OCFS1_MAX_MOUNT_POINT_LEN 128
|
|
#define OCFS1_MAX_VOL_ID_LENGTH 16
|
|
#define OCFS1_MAX_VOL_LABEL_LEN 64
|
|
#define OCFS1_MAX_CLUSTER_NAME_LEN 64
|
|
|
|
#define OCFS1_MAJOR_VERSION (2)
|
|
#define OCFS1_MINOR_VERSION (0)
|
|
#define OCFS1_VOLUME_SIGNATURE "OracleCFS"
|
|
|
|
/*
|
|
* OCFS1 superblock. Lives at sector 0.
|
|
*/
|
|
struct ocfs1_vol_disk_hdr
|
|
{
|
|
/*00*/ __u32 minor_version;
|
|
__u32 major_version;
|
|
/*08*/ __u8 signature[OCFS1_MAX_VOL_SIGNATURE_LEN];
|
|
/*88*/ __u8 mount_point[OCFS1_MAX_MOUNT_POINT_LEN];
|
|
/*108*/ __u64 serial_num;
|
|
/*110*/ __u64 device_size;
|
|
__u64 start_off;
|
|
/*120*/ __u64 bitmap_off;
|
|
__u64 publ_off;
|
|
/*130*/ __u64 vote_off;
|
|
__u64 root_bitmap_off;
|
|
/*140*/ __u64 data_start_off;
|
|
__u64 root_bitmap_size;
|
|
/*150*/ __u64 root_off;
|
|
__u64 root_size;
|
|
/*160*/ __u64 cluster_size;
|
|
__u64 num_nodes;
|
|
/*170*/ __u64 num_clusters;
|
|
__u64 dir_node_size;
|
|
/*180*/ __u64 file_node_size;
|
|
__u64 internal_off;
|
|
/*190*/ __u64 node_cfg_off;
|
|
__u64 node_cfg_size;
|
|
/*1A0*/ __u64 new_cfg_off;
|
|
__u32 prot_bits;
|
|
__s32 excl_mount;
|
|
/*1B0*/
|
|
};
|
|
|
|
|
|
struct ocfs1_disk_lock
|
|
{
|
|
/*00*/ __u32 curr_master;
|
|
__u8 file_lock;
|
|
__u8 compat_pad[3]; /* Not in orignal definition. Used to
|
|
make the already existing alignment
|
|
explicit */
|
|
__u64 last_write_time;
|
|
/*10*/ __u64 last_read_time;
|
|
__u32 writer_node_num;
|
|
__u32 reader_node_num;
|
|
/*20*/ __u64 oin_node_map;
|
|
__u64 dlock_seq_num;
|
|
/*30*/
|
|
};
|
|
|
|
/*
|
|
* OCFS1 volume label. Lives at sector 1.
|
|
*/
|
|
struct ocfs1_vol_label
|
|
{
|
|
/*00*/ struct ocfs1_disk_lock disk_lock;
|
|
/*30*/ __u8 label[OCFS1_MAX_VOL_LABEL_LEN];
|
|
/*70*/ __u16 label_len;
|
|
/*72*/ __u8 vol_id[OCFS1_MAX_VOL_ID_LENGTH];
|
|
/*82*/ __u16 vol_id_len;
|
|
/*84*/ __u8 cluster_name[OCFS1_MAX_CLUSTER_NAME_LEN];
|
|
/*A4*/ __u16 cluster_name_len;
|
|
/*A6*/
|
|
};
|
|
|
|
|
|
#endif /* _OCFS1_FS_COMPAT_H */
|
|
|