[pschweitzer] 71166: [NTOSKRNL] In FsRtlAddBaseMcbEntry(), don't merge runs in case there's a hole in LBNs CORE-11002

Author: pschweitzer
Date: Fri Apr 15 20:50:40 2016
New Revision: 71166

URL: http://svn.reactos.org/svn/reactos?rev=71166&view=rev
Log:
[NTOSKRNL]
In FsRtlAddBaseMcbEntry(), don't merge runs in case there's a hole in LBNs

CORE-11002

Modified:
    trunk/reactos/ntoskrnl/fsrtl/largemcb.c

Modified: trunk/reactos/ntoskrnl/fsrtl/largemcb.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/fsrtl/largemcb.c?…
==============================================================================
--- trunk/reactos/ntoskrnl/fsrtl/largemcb.c	[iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/fsrtl/largemcb.c	[iso-8859-1] Fri Apr 15 20:50:40 2016
@@ -184,7 +184,7 @@
     NeedleRun.StartingLbn.QuadPart = ~0ULL;
     Mcb->Mapping->Table.CompareRoutine = McbMappingIntersectCompare;
     if ((LowerRun = RtlLookupElementGenericTable(&Mcb->Mapping->Table,
&NeedleRun)) &&
-        (LowerRun->StartingLbn.QuadPart < Node.StartingLbn.QuadPart))
+        (LowerRun->StartingLbn.QuadPart + (LowerRun->RunEndVbn.QuadPart -
LowerRun->RunStartVbn.QuadPart) == Node.StartingLbn.QuadPart))
     {
         ASSERT(LowerRun->RunEndVbn.QuadPart == Node.RunStartVbn.QuadPart);
         Node.RunStartVbn.QuadPart = LowerRun->RunStartVbn.QuadPart;