Fix the undersized buffer pool problem. Fixes #632. Addresses #580.

git-svn-id: file:///svn/tokudb@3237 c7de825b-a66e-492c-adef-691d508d4ae1

newbrt/brt.c

@@ -256,7 +256,7 @@ int malloc_diskblock (DISKOFF *res, BRT brt, int size, TOKULOGGER logger) {
 }
 
 u_int32_t mp_pool_size_for_nodesize (u_int32_t nodesize) {
-#if 0
+#if 1
     return nodesize+nodesize/4;
 #else
     return nodesize;
@@ -287,9 +287,10 @@ static void initialize_brtnode (BRT t, BRTNODE n, DISKOFF nodename, int height)
 	int r = toku_gpma_create(&n->u.l.buffer, 0);
 	assert(r==0);
 	{
-	    void *mp = toku_malloc(n->nodesize);
+	    u_int32_t mpsize = mp_pool_size_for_nodesize(n->nodesize);
+	    void *mp = toku_malloc(mpsize);
 	    assert(mp);
-	    toku_mempool_init(&n->u.l.buffer_mempool, mp, mp_pool_size_for_nodesize(n->nodesize));
+	    toku_mempool_init(&n->u.l.buffer_mempool, mp, mpsize);
 	}
 
 	static int rcount=0;

newbrt/test-brt-overflow.c

@@ -45,5 +45,6 @@ int main (int argc, const char *argv[]) {
             verbose = 0;
     }
     test_overflow();
+    toku_malloc_cleanup();
     return 0;
 }