forked from luck/tmp_suning_uos_patched
1946b91cee
Start constructing the refcount btree implementation by establishing the on-disk format and everything needed to read, write, and manipulate the refcount btree blocks. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Christoph Hellwig <hch@lst.de>
143 lines
6.3 KiB
C
143 lines
6.3 KiB
C
/*
|
|
* Copyright (c) 2016 Oracle.
|
|
* All Rights Reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it would be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write the Free Software Foundation,
|
|
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
#ifndef __XFS_ONDISK_H
|
|
#define __XFS_ONDISK_H
|
|
|
|
#define XFS_CHECK_STRUCT_SIZE(structname, size) \
|
|
BUILD_BUG_ON_MSG(sizeof(structname) != (size), "XFS: sizeof(" \
|
|
#structname ") is wrong, expected " #size)
|
|
|
|
#define XFS_CHECK_OFFSET(structname, member, off) \
|
|
BUILD_BUG_ON_MSG(offsetof(structname, member) != (off), \
|
|
"XFS: offsetof(" #structname ", " #member ") is wrong, " \
|
|
"expected " #off)
|
|
|
|
static inline void __init
|
|
xfs_check_ondisk_structs(void)
|
|
{
|
|
/* ag/file structures */
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_acl, 4);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_acl_entry, 12);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_agf, 224);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_agfl, 36);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_agi, 336);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_bmbt_key, 8);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_bmbt_rec, 16);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_bmdr_block, 4);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_btree_block_shdr, 48);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_btree_block_lhdr, 64);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_btree_block, 72);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_dinode, 176);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_disk_dquot, 104);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_dqblk, 136);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_dsb, 264);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_dsymlink_hdr, 56);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_inobt_key, 4);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_inobt_rec, 16);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_refcount_key, 4);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_refcount_rec, 12);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_rmap_key, 20);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_rmap_rec, 24);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_timestamp, 8);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_alloc_key_t, 8);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_alloc_ptr_t, 4);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_alloc_rec_t, 8);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_inobt_ptr_t, 4);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_refcount_ptr_t, 4);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_rmap_ptr_t, 4);
|
|
|
|
/* dir/attr trees */
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_attr3_leaf_hdr, 80);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_attr3_leafblock, 88);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_attr3_rmt_hdr, 56);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_da3_blkinfo, 56);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_da3_intnode, 64);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_da3_node_hdr, 64);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_dir3_blk_hdr, 48);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_dir3_data_hdr, 64);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_dir3_free, 64);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_dir3_free_hdr, 64);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_dir3_leaf, 64);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_dir3_leaf_hdr, 64);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_attr_leaf_entry_t, 8);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_attr_leaf_hdr_t, 32);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_attr_leaf_map_t, 4);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_attr_leaf_name_local_t, 4);
|
|
|
|
/*
|
|
* m68k has problems with xfs_attr_leaf_name_remote_t, but we pad it to
|
|
* 4 bytes anyway so it's not obviously a problem. Hence for the moment
|
|
* we don't check this structure. This can be re-instated when the attr
|
|
* definitions are updated to use c99 VLA definitions.
|
|
*
|
|
XFS_CHECK_STRUCT_SIZE(xfs_attr_leaf_name_remote_t, 12);
|
|
*/
|
|
|
|
XFS_CHECK_OFFSET(xfs_attr_leaf_name_local_t, valuelen, 0);
|
|
XFS_CHECK_OFFSET(xfs_attr_leaf_name_local_t, namelen, 2);
|
|
XFS_CHECK_OFFSET(xfs_attr_leaf_name_local_t, nameval, 3);
|
|
XFS_CHECK_OFFSET(xfs_attr_leaf_name_remote_t, valueblk, 0);
|
|
XFS_CHECK_OFFSET(xfs_attr_leaf_name_remote_t, valuelen, 4);
|
|
XFS_CHECK_OFFSET(xfs_attr_leaf_name_remote_t, namelen, 8);
|
|
XFS_CHECK_OFFSET(xfs_attr_leaf_name_remote_t, name, 9);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_attr_leafblock_t, 40);
|
|
XFS_CHECK_OFFSET(xfs_attr_shortform_t, hdr.totsize, 0);
|
|
XFS_CHECK_OFFSET(xfs_attr_shortform_t, hdr.count, 2);
|
|
XFS_CHECK_OFFSET(xfs_attr_shortform_t, list[0].namelen, 4);
|
|
XFS_CHECK_OFFSET(xfs_attr_shortform_t, list[0].valuelen, 5);
|
|
XFS_CHECK_OFFSET(xfs_attr_shortform_t, list[0].flags, 6);
|
|
XFS_CHECK_OFFSET(xfs_attr_shortform_t, list[0].nameval, 7);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_da_blkinfo_t, 12);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_da_intnode_t, 16);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_da_node_entry_t, 8);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_da_node_hdr_t, 16);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_dir2_data_free_t, 4);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_dir2_data_hdr_t, 16);
|
|
XFS_CHECK_OFFSET(xfs_dir2_data_unused_t, freetag, 0);
|
|
XFS_CHECK_OFFSET(xfs_dir2_data_unused_t, length, 2);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_dir2_free_hdr_t, 16);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_dir2_free_t, 16);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_dir2_leaf_entry_t, 8);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_dir2_leaf_hdr_t, 16);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_dir2_leaf_t, 16);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_dir2_leaf_tail_t, 4);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_dir2_sf_entry_t, 3);
|
|
XFS_CHECK_OFFSET(xfs_dir2_sf_entry_t, namelen, 0);
|
|
XFS_CHECK_OFFSET(xfs_dir2_sf_entry_t, offset, 1);
|
|
XFS_CHECK_OFFSET(xfs_dir2_sf_entry_t, name, 3);
|
|
XFS_CHECK_STRUCT_SIZE(xfs_dir2_sf_hdr_t, 10);
|
|
|
|
/* log structures */
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_dq_logformat, 24);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_efd_log_format_32, 28);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_efd_log_format_64, 32);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_efi_log_format_32, 28);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_efi_log_format_64, 32);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_extent_32, 12);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_extent_64, 16);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_log_dinode, 176);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_icreate_log, 28);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_ictimestamp, 8);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_inode_log_format_32, 52);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_inode_log_format_64, 56);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_qoff_logformat, 20);
|
|
XFS_CHECK_STRUCT_SIZE(struct xfs_trans_header, 16);
|
|
}
|
|
|
|
#endif /* __XFS_ONDISK_H */
|