[tfaber] 68274: [NTOS:MM] - Do not request a page in MiAllocatePagesForMdl if no pages are available. Fixes kmtest:MmMdl. CORE-9879 #resolve

Author: tfaber
Date: Fri Jun 26 11:02:40 2015
New Revision: 68274

URL: http://svn.reactos.org/svn/reactos?rev=68274&view=rev
Log:
[NTOS:MM]
- Do not request a page in MiAllocatePagesForMdl if no pages are available. Fixes
kmtest:MmMdl.
CORE-9879 #resolve

Modified:
    trunk/reactos/ntoskrnl/mm/freelist.c

Modified: trunk/reactos/ntoskrnl/mm/freelist.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/freelist.c?rev…
==============================================================================
--- trunk/reactos/ntoskrnl/mm/freelist.c	[iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/freelist.c	[iso-8859-1] Fri Jun 26 11:02:40 2015
@@ -232,7 +232,12 @@
             /* Grab a page */
             MI_SET_USAGE(MI_USAGE_MDL);
             MI_SET_PROCESS2("Kernel");
-            Page = MiRemoveAnyPage(0);
+
+            /* FIXME: This check should be smarter */
+            Page = 0;
+            if (MmAvailablePages != 0)
+                Page = MiRemoveAnyPage(0);
+
             if (Page == 0)
             {
                 /* This is not good... hopefully we have at least SOME pages */