XFS_BB_LEFTSIB
ASSERT(lr == XFS_BB_LEFTSIB || lr == XFS_BB_RIGHTSIB);
ASSERT(lr == XFS_BB_LEFTSIB || lr == XFS_BB_RIGHTSIB);
xfs_btree_get_sibling(cur, block, &ptr, XFS_BB_LEFTSIB);
xfs_btree_get_sibling(cur, right, &lptr, XFS_BB_LEFTSIB);
xfs_btree_set_sibling(cur, right, &lptr, XFS_BB_LEFTSIB);
xfs_btree_set_sibling(cur, rrblock, &rptr, XFS_BB_LEFTSIB);
xfs_btree_log_block(cur, rrbp, XFS_BB_LEFTSIB);
xfs_btree_get_sibling(cur, right, &lptr, XFS_BB_LEFTSIB);
xfs_btree_get_sibling(cur, block, &ptr, XFS_BB_LEFTSIB);
xfs_btree_get_sibling(cur, block, &lptr, XFS_BB_LEFTSIB);
xfs_btree_get_sibling(tcur, right, &cptr, XFS_BB_LEFTSIB);
xfs_btree_set_sibling(cur, rrblock, &lptr, XFS_BB_LEFTSIB);
xfs_btree_log_block(cur, rrbp, XFS_BB_LEFTSIB);
xfs_btree_set_sibling(cur, new_block, ptrp, XFS_BB_LEFTSIB);
xfs_btree_get_sibling(cur, block, &leftsib, XFS_BB_LEFTSIB);