| Darrick J. Wong | 30cbc59 | 2016-03-09 08:15:14 +1100 | [diff] [blame] | 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 | |
| 25 | static inline void __init |
| 26 | xfs_check_ondisk_structs(void) |
| 27 | { |
| 28 | /* ag/file structures */ |
| 29 | XFS_CHECK_STRUCT_SIZE(struct xfs_acl, 4); |
| 30 | XFS_CHECK_STRUCT_SIZE(struct xfs_acl_entry, 12); |
| 31 | XFS_CHECK_STRUCT_SIZE(struct xfs_agf, 224); |
| 32 | XFS_CHECK_STRUCT_SIZE(struct xfs_agfl, 36); |
| 33 | XFS_CHECK_STRUCT_SIZE(struct xfs_agi, 336); |
| 34 | XFS_CHECK_STRUCT_SIZE(struct xfs_bmbt_key, 8); |
| 35 | XFS_CHECK_STRUCT_SIZE(struct xfs_bmbt_rec, 16); |
| 36 | XFS_CHECK_STRUCT_SIZE(struct xfs_bmdr_block, 4); |
| 37 | XFS_CHECK_STRUCT_SIZE(struct xfs_btree_block, 72); |
| 38 | XFS_CHECK_STRUCT_SIZE(struct xfs_dinode, 176); |
| 39 | XFS_CHECK_STRUCT_SIZE(struct xfs_disk_dquot, 104); |
| 40 | XFS_CHECK_STRUCT_SIZE(struct xfs_dqblk, 136); |
| 41 | XFS_CHECK_STRUCT_SIZE(struct xfs_dsb, 264); |
| 42 | XFS_CHECK_STRUCT_SIZE(struct xfs_dsymlink_hdr, 56); |
| 43 | XFS_CHECK_STRUCT_SIZE(struct xfs_inobt_key, 4); |
| 44 | XFS_CHECK_STRUCT_SIZE(struct xfs_inobt_rec, 16); |
| 45 | XFS_CHECK_STRUCT_SIZE(struct xfs_timestamp, 8); |
| 46 | XFS_CHECK_STRUCT_SIZE(xfs_alloc_key_t, 8); |
| 47 | XFS_CHECK_STRUCT_SIZE(xfs_alloc_ptr_t, 4); |
| 48 | XFS_CHECK_STRUCT_SIZE(xfs_alloc_rec_t, 8); |
| 49 | XFS_CHECK_STRUCT_SIZE(xfs_inobt_ptr_t, 4); |
| 50 | |
| 51 | /* dir/attr trees */ |
| 52 | XFS_CHECK_STRUCT_SIZE(struct xfs_attr3_leaf_hdr, 80); |
| 53 | XFS_CHECK_STRUCT_SIZE(struct xfs_attr3_leafblock, 88); |
| 54 | XFS_CHECK_STRUCT_SIZE(struct xfs_attr3_rmt_hdr, 56); |
| 55 | XFS_CHECK_STRUCT_SIZE(struct xfs_da3_blkinfo, 56); |
| 56 | XFS_CHECK_STRUCT_SIZE(struct xfs_da3_intnode, 64); |
| 57 | XFS_CHECK_STRUCT_SIZE(struct xfs_da3_node_hdr, 64); |
| 58 | XFS_CHECK_STRUCT_SIZE(struct xfs_dir3_blk_hdr, 48); |
| 59 | XFS_CHECK_STRUCT_SIZE(struct xfs_dir3_data_hdr, 64); |
| 60 | XFS_CHECK_STRUCT_SIZE(struct xfs_dir3_free, 64); |
| 61 | XFS_CHECK_STRUCT_SIZE(struct xfs_dir3_free_hdr, 64); |
| 62 | XFS_CHECK_STRUCT_SIZE(struct xfs_dir3_leaf, 64); |
| 63 | XFS_CHECK_STRUCT_SIZE(struct xfs_dir3_leaf_hdr, 64); |
| 64 | XFS_CHECK_STRUCT_SIZE(xfs_attr_leaf_entry_t, 8); |
| 65 | XFS_CHECK_STRUCT_SIZE(xfs_attr_leaf_hdr_t, 32); |
| 66 | XFS_CHECK_STRUCT_SIZE(xfs_attr_leaf_map_t, 4); |
| 67 | XFS_CHECK_STRUCT_SIZE(xfs_attr_leaf_name_local_t, 4); |
| 68 | |
| 69 | /* |
| 70 | * m68k has problems with xfs_attr_leaf_name_remote_t, but we pad it to |
| 71 | * 4 bytes anyway so it's not obviously a problem. Hence for the moment |
| 72 | * we don't check this structure. This can be re-instated when the attr |
| 73 | * definitions are updated to use c99 VLA definitions. |
| 74 | * |
| 75 | XFS_CHECK_STRUCT_SIZE(xfs_attr_leaf_name_remote_t, 12); |
| 76 | */ |
| 77 | |
| 78 | XFS_CHECK_STRUCT_SIZE(xfs_attr_leafblock_t, 40); |
| 79 | XFS_CHECK_STRUCT_SIZE(xfs_attr_shortform_t, 8); |
| 80 | XFS_CHECK_STRUCT_SIZE(xfs_da_blkinfo_t, 12); |
| 81 | XFS_CHECK_STRUCT_SIZE(xfs_da_intnode_t, 16); |
| 82 | XFS_CHECK_STRUCT_SIZE(xfs_da_node_entry_t, 8); |
| 83 | XFS_CHECK_STRUCT_SIZE(xfs_da_node_hdr_t, 16); |
| 84 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_data_free_t, 4); |
| 85 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_data_hdr_t, 16); |
| 86 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_data_unused_t, 6); |
| 87 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_free_hdr_t, 16); |
| 88 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_free_t, 16); |
| 89 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_ino4_t, 4); |
| 90 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_ino8_t, 8); |
| 91 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_inou_t, 8); |
| 92 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_leaf_entry_t, 8); |
| 93 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_leaf_hdr_t, 16); |
| 94 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_leaf_t, 16); |
| 95 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_leaf_tail_t, 4); |
| 96 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_sf_entry_t, 3); |
| 97 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_sf_hdr_t, 10); |
| 98 | XFS_CHECK_STRUCT_SIZE(xfs_dir2_sf_off_t, 2); |
| 99 | |
| 100 | /* log structures */ |
| 101 | XFS_CHECK_STRUCT_SIZE(struct xfs_dq_logformat, 24); |
| 102 | XFS_CHECK_STRUCT_SIZE(struct xfs_efd_log_format_32, 28); |
| 103 | XFS_CHECK_STRUCT_SIZE(struct xfs_efd_log_format_64, 32); |
| 104 | XFS_CHECK_STRUCT_SIZE(struct xfs_efi_log_format_32, 28); |
| 105 | XFS_CHECK_STRUCT_SIZE(struct xfs_efi_log_format_64, 32); |
| 106 | XFS_CHECK_STRUCT_SIZE(struct xfs_extent_32, 12); |
| 107 | XFS_CHECK_STRUCT_SIZE(struct xfs_extent_64, 16); |
| 108 | XFS_CHECK_STRUCT_SIZE(struct xfs_log_dinode, 176); |
| 109 | XFS_CHECK_STRUCT_SIZE(struct xfs_icreate_log, 28); |
| 110 | XFS_CHECK_STRUCT_SIZE(struct xfs_ictimestamp, 8); |
| 111 | XFS_CHECK_STRUCT_SIZE(struct xfs_inode_log_format_32, 52); |
| 112 | XFS_CHECK_STRUCT_SIZE(struct xfs_inode_log_format_64, 56); |
| 113 | XFS_CHECK_STRUCT_SIZE(struct xfs_qoff_logformat, 20); |
| 114 | XFS_CHECK_STRUCT_SIZE(struct xfs_trans_header, 16); |
| 115 | } |
| 116 | |
| 117 | #endif /* __XFS_ONDISK_H */ |