mtree_erase
immap = mtree_erase(&ictx->mt_mmap, offset);
head = mtree_erase(&cache->entries, entry->key);
mtree_erase(&octx->mt, offset);
void *mtree_erase(struct maple_tree *mt, unsigned long index);
EXPORT_SYMBOL(mtree_erase);
return mtree_erase(mt, index);
mtree_erase(mt, 200);
mtree_erase(mt, 210);
mtree_erase(mt, 220);
mtree_erase(mt, 230);
mtree_erase(mt, 631668735);
mtree_erase(mt, 629506047);
mtree_erase(mt, 123);
mtree_erase(mt, 100);
MT_BUG_ON(mt, mtree_erase(mt, index) != xa_mk_value(index & LONG_MAX));
mtree_erase(mt, 34148798727); /* create a deleted range. */
mtree_erase(mt, 34148798725);
mtree_erase(mt, 140373516443648);