projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 30cbc591 DW |
1 | /* |
| 2 | * Copyright (c) 2016 Oracle. | |
| 3 | * All Rights Reserved. | |
| 4 | * | |
| 5 | * This program is free software; you can redistribute it and/or | |
| 6 | * modify it under the terms of the GNU General Public License as | |
| 7 | * published by the Free Software Foundation. | |
| 8 | * | |
| 9 | * This program is distributed in the hope that it would be useful, | |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 | * GNU General Public License for more details. | |
| 13 | * | |
| 14 | * You should have received a copy of the GNU General Public License | |
| 15 | * along with this program; if not, write the Free Software Foundation, | |
| 16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
| 17 | */ | |
| 18 | #ifndef __XFS_ONDISK_H | |
| 19 | #define __XFS_ONDISK_H | |
| 20 | ||
| 21 | #define XFS_CHECK_STRUCT_SIZE(structname, size) \ | |
| 22 | BUILD_BUG_ON_MSG(sizeof(structname) != (size), "XFS: sizeof(" \ | |
| 23 | #structname ") is wrong, expected " #size) | |
| 24 | ||
| 3f94c441 DW |
25 | #define XFS_CHECK_OFFSET(structname, member, off) \ |
| 26 | BUILD_BUG_ON_MSG(offsetof(structname, member) != (off), \ | |
| 27 | "XFS: offsetof(" #structname ", " #member ") is wrong, " \ | |
| 28 | "expected " #off) | |
| 29 | ||
| 30cbc591 DW |
30 | static inline void __init |
| 31 | xfs_check_ondisk_structs(void) | |
| 32 | { | |
| 33 | /* ag/file structures */ | |
| 34 | XFS_CHECK_STRUCT_SIZE(struct xfs_acl, 4); | |
| 35 | XFS_CHECK_STRUCT_SIZE(struct xfs_acl_entry, 12); | |
| 36 | XFS_CHECK_STRUCT_SIZE(struct xfs_agf, 224); | |
| 37 | XFS_CHECK_STRUCT_SIZE(struct xfs_agfl, 36); | |
| 38 | XFS_CHECK_STRUCT_SIZE(struct xfs_agi, 336); | |
| 39 | XFS_CHECK_STRUCT_SIZE(struct xfs_bmbt_key, 8); | |
| 40 | XFS_CHECK_STRUCT_SIZE(struct xfs_bmbt_rec, 16); | |
| 41 | XFS_CHECK_STRUCT_SIZE(struct xfs_bmdr_block, 4); | |
| ad70328a HT |
42 | XFS_CHECK_STRUCT_SIZE(struct xfs_btree_block_shdr, 48); |
| 43 | XFS_CHECK_STRUCT_SIZE(struct xfs_btree_block_lhdr, 64); | |
| 30cbc591 DW |
44 | XFS_CHECK_STRUCT_SIZE(struct xfs_btree_block, 72); |
| 45 | XFS_CHECK_STRUCT_SIZE(struct xfs_dinode, 176); | |
| 46 | XFS_CHECK_STRUCT_SIZE(struct xfs_disk_dquot, 104); | |
| 47 | XFS_CHECK_STRUCT_SIZE(struct xfs_dqblk, 136); | |
| 48 | XFS_CHECK_STRUCT_SIZE(struct xfs_dsb, 264); | |
| 49 | XFS_CHECK_STRUCT_SIZE(struct xfs_dsymlink_hdr, 56); | |
| 50 | XFS_CHECK_STRUCT_SIZE(struct xfs_inobt_key, 4); | |
| 51 | XFS_CHECK_STRUCT_SIZE(struct xfs_inobt_rec, 16); | |
| 035e00ac DW |
52 | XFS_CHECK_STRUCT_SIZE(struct xfs_rmap_key, 20); |
| 53 | XFS_CHECK_STRUCT_SIZE(struct xfs_rmap_rec, 24); | |
| 30cbc591 DW |
54 | XFS_CHECK_STRUCT_SIZE(struct xfs_timestamp, 8); |
| 55 | XFS_CHECK_STRUCT_SIZE(xfs_alloc_key_t, 8); | |
| 56 | XFS_CHECK_STRUCT_SIZE(xfs_alloc_ptr_t, 4); | |
| 57 | XFS_CHECK_STRUCT_SIZE(xfs_alloc_rec_t, 8); | |
| 58 | XFS_CHECK_STRUCT_SIZE(xfs_inobt_ptr_t, 4); | |
| 035e00ac | 59 | XFS_CHECK_STRUCT_SIZE(xfs_rmap_ptr_t, 4); |
| 30cbc591 DW |
60 | |
| 61 | /* dir/attr trees */ | |
| 62 | XFS_CHECK_STRUCT_SIZE(struct xfs_attr3_leaf_hdr, 80); | |
| 63 | XFS_CHECK_STRUCT_SIZE(struct xfs_attr3_leafblock, 88); | |
| 64 | XFS_CHECK_STRUCT_SIZE(struct xfs_attr3_rmt_hdr, 56); | |
| 65 | XFS_CHECK_STRUCT_SIZE(struct xfs_da3_blkinfo, 56); | |
| 66 | XFS_CHECK_STRUCT_SIZE(struct xfs_da3_intnode, 64); | |
| 67 | XFS_CHECK_STRUCT_SIZE(struct xfs_da3_node_hdr, 64); | |
| 68 | XFS_CHECK_STRUCT_SIZE(struct xfs_dir3_blk_hdr, 48); | |
| 69 | XFS_CHECK_STRUCT_SIZE(struct xfs_dir3_data_hdr, 64); | |
| 70 | XFS_CHECK_STRUCT_SIZE(struct xfs_dir3_free, 64); | |
| 71 | XFS_CHECK_STRUCT_SIZE(struct xfs_dir3_free_hdr, 64); | |
| 72 | XFS_CHECK_STRUCT_SIZE(struct xfs_dir3_leaf, 64); | |
| 73 | XFS_CHECK_STRUCT_SIZE(struct xfs_dir3_leaf_hdr, 64); | |
| 74 | XFS_CHECK_STRUCT_SIZE(xfs_attr_leaf_entry_t, 8); | |
| 75 | XFS_CHECK_STRUCT_SIZE(xfs_attr_leaf_hdr_t, 32); | |
| 76 | XFS_CHECK_STRUCT_SIZE(xfs_attr_leaf_map_t, 4); | |
| 77 | XFS_CHECK_STRUCT_SIZE(xfs_attr_leaf_name_local_t, 4); | |
| 78 | ||
| 79 | /* | |
| 80 | * m68k has problems with xfs_attr_leaf_name_remote_t, but we pad it to | |
| 81 | * 4 bytes anyway so it's not obviously a problem. Hence for the moment | |
| 82 | * we don't check this structure. This can be re-instated when the attr | |
| 83 | * definitions are updated to use c99 VLA definitions. | |
| 84 | * | |
| 85 | XFS_CHECK_STRUCT_SIZE(xfs_attr_leaf_name_remote_t, 12); | |
| 86 | */ | |
| 87 | ||
| 3f94c441 DW |
88 | XFS_CHECK_OFFSET(xfs_attr_leaf_name_local_t, valuelen, 0); |
| 89 | XFS_CHECK_OFFSET(xfs_attr_leaf_name_local_t, namelen, 2); | |
| 90 | XFS_CHECK_OFFSET(xfs_attr_leaf_name_local_t, nameval, 3); | |
| 91 | XFS_CHECK_OFFSET(xfs_attr_leaf_name_remote_t, valueblk, 0); | |
| 92 | XFS_CHECK_OFFSET(xfs_attr_leaf_name_remote_t, valuelen, 4); | |
| 93 | XFS_CHECK_OFFSET(xfs_attr_leaf_name_remote_t, namelen, 8); | |
| 94 | XFS_CHECK_OFFSET(xfs_attr_leaf_name_remote_t, name, 9); | |
| 30cbc591 | 95 | XFS_CHECK_STRUCT_SIZE(xfs_attr_leafblock_t, 40); |
| 3f94c441 DW |
96 | XFS_CHECK_OFFSET(xfs_attr_shortform_t, hdr.totsize, 0); |
| 97 | XFS_CHECK_OFFSET(xfs_attr_shortform_t, hdr.count, 2); | |
| 98 | XFS_CHECK_OFFSET(xfs_attr_shortform_t, list[0].namelen, 4); | |
| 99 | XFS_CHECK_OFFSET(xfs_attr_shortform_t, list[0].valuelen, 5); | |
| 100 | XFS_CHECK_OFFSET(xfs_attr_shortform_t, list[0].flags, 6); | |
| 101 | XFS_CHECK_OFFSET(xfs_attr_shortform_t, list[0].nameval, 7); | |
| 30cbc591 DW |
102 | XFS_CHECK_STRUCT_SIZE(xfs_da_blkinfo_t, 12); |
| 103 | XFS_CHECK_STRUCT_SIZE(xfs_da_intnode_t, 16); | |
| 104 | XFS_CHECK_STRUCT_SIZE(xfs_da_node_entry_t, 8); | |
| 105 | XFS_CHECK_STRUCT_SIZE(xfs_da_node_hdr_t, 16); | |
| 106 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_data_free_t, 4); | |
| 107 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_data_hdr_t, 16); | |
| 3f94c441 DW |
108 | XFS_CHECK_OFFSET(xfs_dir2_data_unused_t, freetag, 0); |
| 109 | XFS_CHECK_OFFSET(xfs_dir2_data_unused_t, length, 2); | |
| 30cbc591 DW |
110 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_free_hdr_t, 16); |
| 111 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_free_t, 16); | |
| 30cbc591 DW |
112 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_leaf_entry_t, 8); |
| 113 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_leaf_hdr_t, 16); | |
| 114 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_leaf_t, 16); | |
| 115 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_leaf_tail_t, 4); | |
| 116 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_sf_entry_t, 3); | |
| 3f94c441 DW |
117 | XFS_CHECK_OFFSET(xfs_dir2_sf_entry_t, namelen, 0); |
| 118 | XFS_CHECK_OFFSET(xfs_dir2_sf_entry_t, offset, 1); | |
| 119 | XFS_CHECK_OFFSET(xfs_dir2_sf_entry_t, name, 3); | |
| 30cbc591 | 120 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_sf_hdr_t, 10); |
| 30cbc591 DW |
121 | |
| 122 | /* log structures */ | |
| 123 | XFS_CHECK_STRUCT_SIZE(struct xfs_dq_logformat, 24); | |
| 124 | XFS_CHECK_STRUCT_SIZE(struct xfs_efd_log_format_32, 28); | |
| 125 | XFS_CHECK_STRUCT_SIZE(struct xfs_efd_log_format_64, 32); | |
| 126 | XFS_CHECK_STRUCT_SIZE(struct xfs_efi_log_format_32, 28); | |
| 127 | XFS_CHECK_STRUCT_SIZE(struct xfs_efi_log_format_64, 32); | |
| 128 | XFS_CHECK_STRUCT_SIZE(struct xfs_extent_32, 12); | |
| 129 | XFS_CHECK_STRUCT_SIZE(struct xfs_extent_64, 16); | |
| 130 | XFS_CHECK_STRUCT_SIZE(struct xfs_log_dinode, 176); | |
| 131 | XFS_CHECK_STRUCT_SIZE(struct xfs_icreate_log, 28); | |
| 132 | XFS_CHECK_STRUCT_SIZE(struct xfs_ictimestamp, 8); | |
| 133 | XFS_CHECK_STRUCT_SIZE(struct xfs_inode_log_format_32, 52); | |
| 134 | XFS_CHECK_STRUCT_SIZE(struct xfs_inode_log_format_64, 56); | |
| 135 | XFS_CHECK_STRUCT_SIZE(struct xfs_qoff_logformat, 20); | |
| 136 | XFS_CHECK_STRUCT_SIZE(struct xfs_trans_header, 16); | |
| 137 | } | |
| 138 | ||
| 139 | #endif /* __XFS_ONDISK_H */ |