projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 921a3d4d | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| ccd979bd MF |
2 | /* -*- mode: c; c-basic-offset: 8; -*- |
| 3 | * vim: noexpandtab sw=8 ts=8 sts=0: | |
| 4 | * | |
| 5 | * ocfs1_fs_compat.h | |
| 6 | * | |
| 7 | * OCFS1 volume header definitions. OCFS2 creates valid but unmountable | |
| 8 | * OCFS1 volume headers on the first two sectors of an OCFS2 volume. | |
| 9 | * This allows an OCFS1 volume to see the partition and cleanly fail to | |
| 10 | * mount it. | |
| 11 | * | |
| 12 | * Copyright (C) 2002, 2004 Oracle. All rights reserved. | |
| ccd979bd MF |
13 | */ |
| 14 | ||
| 15 | #ifndef _OCFS1_FS_COMPAT_H | |
| 16 | #define _OCFS1_FS_COMPAT_H | |
| 17 | ||
| 18 | #define OCFS1_MAX_VOL_SIGNATURE_LEN 128 | |
| 19 | #define OCFS1_MAX_MOUNT_POINT_LEN 128 | |
| 20 | #define OCFS1_MAX_VOL_ID_LENGTH 16 | |
| 21 | #define OCFS1_MAX_VOL_LABEL_LEN 64 | |
| 22 | #define OCFS1_MAX_CLUSTER_NAME_LEN 64 | |
| 23 | ||
| 24 | #define OCFS1_MAJOR_VERSION (2) | |
| 25 | #define OCFS1_MINOR_VERSION (0) | |
| 26 | #define OCFS1_VOLUME_SIGNATURE "OracleCFS" | |
| 27 | ||
| 28 | /* | |
| 29 | * OCFS1 superblock. Lives at sector 0. | |
| 30 | */ | |
| 31 | struct ocfs1_vol_disk_hdr | |
| 32 | { | |
| 33 | /*00*/ __u32 minor_version; | |
| 34 | __u32 major_version; | |
| 35 | /*08*/ __u8 signature[OCFS1_MAX_VOL_SIGNATURE_LEN]; | |
| 36 | /*88*/ __u8 mount_point[OCFS1_MAX_MOUNT_POINT_LEN]; | |
| 37 | /*108*/ __u64 serial_num; | |
| 38 | /*110*/ __u64 device_size; | |
| 39 | __u64 start_off; | |
| 40 | /*120*/ __u64 bitmap_off; | |
| 41 | __u64 publ_off; | |
| 42 | /*130*/ __u64 vote_off; | |
| 43 | __u64 root_bitmap_off; | |
| 44 | /*140*/ __u64 data_start_off; | |
| 45 | __u64 root_bitmap_size; | |
| 46 | /*150*/ __u64 root_off; | |
| 47 | __u64 root_size; | |
| 48 | /*160*/ __u64 cluster_size; | |
| 49 | __u64 num_nodes; | |
| 50 | /*170*/ __u64 num_clusters; | |
| 51 | __u64 dir_node_size; | |
| 52 | /*180*/ __u64 file_node_size; | |
| 53 | __u64 internal_off; | |
| 54 | /*190*/ __u64 node_cfg_off; | |
| 55 | __u64 node_cfg_size; | |
| 56 | /*1A0*/ __u64 new_cfg_off; | |
| 57 | __u32 prot_bits; | |
| 58 | __s32 excl_mount; | |
| 59 | /*1B0*/ | |
| 60 | }; | |
| 61 | ||
| 62 | ||
| 63 | struct ocfs1_disk_lock | |
| 64 | { | |
| 65 | /*00*/ __u32 curr_master; | |
| 66 | __u8 file_lock; | |
| c78bad11 | 67 | __u8 compat_pad[3]; /* Not in original definition. Used to |
| ccd979bd MF |
68 | make the already existing alignment |
| 69 | explicit */ | |
| 70 | __u64 last_write_time; | |
| 71 | /*10*/ __u64 last_read_time; | |
| 72 | __u32 writer_node_num; | |
| 73 | __u32 reader_node_num; | |
| 74 | /*20*/ __u64 oin_node_map; | |
| 75 | __u64 dlock_seq_num; | |
| 76 | /*30*/ | |
| 77 | }; | |
| 78 | ||
| 79 | /* | |
| 80 | * OCFS1 volume label. Lives at sector 1. | |
| 81 | */ | |
| 82 | struct ocfs1_vol_label | |
| 83 | { | |
| 84 | /*00*/ struct ocfs1_disk_lock disk_lock; | |
| 85 | /*30*/ __u8 label[OCFS1_MAX_VOL_LABEL_LEN]; | |
| 86 | /*70*/ __u16 label_len; | |
| 87 | /*72*/ __u8 vol_id[OCFS1_MAX_VOL_ID_LENGTH]; | |
| 88 | /*82*/ __u16 vol_id_len; | |
| 89 | /*84*/ __u8 cluster_name[OCFS1_MAX_CLUSTER_NAME_LEN]; | |
| 90 | /*A4*/ __u16 cluster_name_len; | |
| 91 | /*A6*/ | |
| 92 | }; | |
| 93 | ||
| 94 | ||
| 95 | #endif /* _OCFS1_FS_COMPAT_H */ | |
| 96 |