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 */ 118