ia64/linux-2.6.18-xen.hg

view fs/ocfs2/ocfs1_fs_compat.h @ 524:7f8b544237bf

netfront: Allow netfront in domain 0.

This is useful if your physical network device is in a utility domain.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
author Keir Fraser <keir.fraser@citrix.com>
date Tue Apr 15 15:18:58 2008 +0100 (2008-04-15)
parents 831230e53067
children
line source
1 /* -*- mode: c; c-basic-offset: 8; -*-
2 * vim: noexpandtab sw=8 ts=8 sts=0:
3 *
4 * ocfs1_fs_compat.h
5 *
6 * OCFS1 volume header definitions. OCFS2 creates valid but unmountable
7 * OCFS1 volume headers on the first two sectors of an OCFS2 volume.
8 * This allows an OCFS1 volume to see the partition and cleanly fail to
9 * mount it.
10 *
11 * Copyright (C) 2002, 2004 Oracle. All rights reserved.
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public
15 * License, version 2, as published by the Free Software Foundation.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public
23 * License along with this program; if not, write to the
24 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
25 * Boston, MA 021110-1307, USA.
26 */
28 #ifndef _OCFS1_FS_COMPAT_H
29 #define _OCFS1_FS_COMPAT_H
31 #define OCFS1_MAX_VOL_SIGNATURE_LEN 128
32 #define OCFS1_MAX_MOUNT_POINT_LEN 128
33 #define OCFS1_MAX_VOL_ID_LENGTH 16
34 #define OCFS1_MAX_VOL_LABEL_LEN 64
35 #define OCFS1_MAX_CLUSTER_NAME_LEN 64
37 #define OCFS1_MAJOR_VERSION (2)
38 #define OCFS1_MINOR_VERSION (0)
39 #define OCFS1_VOLUME_SIGNATURE "OracleCFS"
41 /*
42 * OCFS1 superblock. Lives at sector 0.
43 */
44 struct ocfs1_vol_disk_hdr
45 {
46 /*00*/ __u32 minor_version;
47 __u32 major_version;
48 /*08*/ __u8 signature[OCFS1_MAX_VOL_SIGNATURE_LEN];
49 /*88*/ __u8 mount_point[OCFS1_MAX_MOUNT_POINT_LEN];
50 /*108*/ __u64 serial_num;
51 /*110*/ __u64 device_size;
52 __u64 start_off;
53 /*120*/ __u64 bitmap_off;
54 __u64 publ_off;
55 /*130*/ __u64 vote_off;
56 __u64 root_bitmap_off;
57 /*140*/ __u64 data_start_off;
58 __u64 root_bitmap_size;
59 /*150*/ __u64 root_off;
60 __u64 root_size;
61 /*160*/ __u64 cluster_size;
62 __u64 num_nodes;
63 /*170*/ __u64 num_clusters;
64 __u64 dir_node_size;
65 /*180*/ __u64 file_node_size;
66 __u64 internal_off;
67 /*190*/ __u64 node_cfg_off;
68 __u64 node_cfg_size;
69 /*1A0*/ __u64 new_cfg_off;
70 __u32 prot_bits;
71 __s32 excl_mount;
72 /*1B0*/
73 };
76 struct ocfs1_disk_lock
77 {
78 /*00*/ __u32 curr_master;
79 __u8 file_lock;
80 __u8 compat_pad[3]; /* Not in orignal definition. Used to
81 make the already existing alignment
82 explicit */
83 __u64 last_write_time;
84 /*10*/ __u64 last_read_time;
85 __u32 writer_node_num;
86 __u32 reader_node_num;
87 /*20*/ __u64 oin_node_map;
88 __u64 dlock_seq_num;
89 /*30*/
90 };
92 /*
93 * OCFS1 volume label. Lives at sector 1.
94 */
95 struct ocfs1_vol_label
96 {
97 /*00*/ struct ocfs1_disk_lock disk_lock;
98 /*30*/ __u8 label[OCFS1_MAX_VOL_LABEL_LEN];
99 /*70*/ __u16 label_len;
100 /*72*/ __u8 vol_id[OCFS1_MAX_VOL_ID_LENGTH];
101 /*82*/ __u16 vol_id_len;
102 /*84*/ __u8 cluster_name[OCFS1_MAX_CLUSTER_NAME_LEN];
103 /*A4*/ __u16 cluster_name_len;
104 /*A6*/
105 };
108 #endif /* _OCFS1_FS_COMPAT_H */