Fix the functionality associated with sqlite3_release_memory() and sqlite3_soft_heap_limit(). It is automatically disabled if the SQLITE_CONFIG_PAGECACHE option is used. (CVS 5576)

FossilOrigin-Name: d025866b09352b32a6d35b97144eaad2fafb7165
diff --git a/src/malloc.c b/src/malloc.c
index 663e44f..a1727e6 100644
--- a/src/malloc.c
+++ b/src/malloc.c
@@ -12,7 +12,7 @@
 **
 ** Memory allocation functions used throughout sqlite.
 **
-** $Id: malloc.c,v 1.35 2008/08/20 14:49:24 danielk1977 Exp $
+** $Id: malloc.c,v 1.36 2008/08/21 12:19:44 danielk1977 Exp $
 */
 #include "sqliteInt.h"
 #include <stdarg.h>
@@ -62,8 +62,11 @@
 */
 int sqlite3_release_memory(int n){
 #ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT
-  int nRet = sqlite3VdbeReleaseMemory(n);
-  nRet += sqlite3PagerReleaseMemory(n-nRet);
+  int nRet = 0;
+#if 0
+  nRet += sqlite3VdbeReleaseMemory(n);
+#endif
+  nRet += sqlite3PcacheReleaseMemory(n-nRet);
   return nRet;
 #else
   return SQLITE_OK;