diff options
Diffstat (limited to 'fs/ocfs2/ocfs1_fs_compat.h')
-rw-r--r-- | fs/ocfs2/ocfs1_fs_compat.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/fs/ocfs2/ocfs1_fs_compat.h b/fs/ocfs2/ocfs1_fs_compat.h new file mode 100644 index 000000000000..0b499bccec5a --- /dev/null +++ b/fs/ocfs2/ocfs1_fs_compat.h | |||
@@ -0,0 +1,109 @@ | |||
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 | */ | ||
27 | |||
28 | #ifndef _OCFS1_FS_COMPAT_H | ||
29 | #define _OCFS1_FS_COMPAT_H | ||
30 | |||
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 | ||
36 | |||
37 | #define OCFS1_MAJOR_VERSION (2) | ||
38 | #define OCFS1_MINOR_VERSION (0) | ||
39 | #define OCFS1_VOLUME_SIGNATURE "OracleCFS" | ||
40 | |||
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 | }; | ||
74 | |||
75 | |||
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 | }; | ||
91 | |||
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 | }; | ||
106 | |||
107 | |||
108 | #endif /* _OCFS1_FS_COMPAT_H */ | ||
109 | |||