UFS_WAPBL_INFS_ADDR
sblock->fs_journallocs[UFS_WAPBL_INFS_ADDR];
sblock.fs_journallocs[UFS_WAPBL_INFS_ADDR] = 0;
log_start = (off_t)fs->fs_journallocs[UFS_WAPBL_INFS_ADDR] *
*startp = fs->fs_journallocs[UFS_WAPBL_INFS_ADDR];
fs->fs_journallocs[UFS_WAPBL_INFS_ADDR] = *startp;