tree_to_bkey
return (void *) (((uint64_t *) tree_to_bkey(t, j)) - t->prev[j]);
struct bkey *m = tree_to_bkey(t, j);
: tree_to_bkey(t, j >> (ffz(j) + 1));
k == tree_to_bkey(t, j))
if (bkey_cmp(tree_to_bkey(t, j), search) > 0)