btree_alloc        49 include/linux/btree.h void *btree_alloc(gfp_t gfp_mask, void *pool_data);
btree_alloc        85 lib/btree.c    EXPORT_SYMBOL_GPL(btree_alloc);
btree_alloc       192 lib/btree.c    	head->mempool = mempool_create(0, btree_alloc, btree_free, NULL);