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[NTOSKRNL]

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In  FsRtlAddBaseMcbEntry(): only merge runs if LBNs are consistent.

This fixes a few failing tests.

CORE-11002

svn path=/trunk/; revision=71137
This commit is contained in:
Pierre Schweitzer 2016-04-10 10:29:28 +00:00
parent 05838e4ee8
commit 277ab38c90
1 changed files with 4 additions and 2 deletions
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6
reactos/ntoskrnl/fsrtl/largemcb.c
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@ -171,7 +171,8 @@ FsRtlAddBaseMcbEntry(IN PBASE_MCB OpaqueMcb,
NeedleRun.RunEndVbn.QuadPart = NeedleRun.RunStartVbn.QuadPart + 1;
NeedleRun.StartingLbn.QuadPart = ~0ULL;
Mcb->Mapping->Table.CompareRoutine = McbMappingIntersectCompare;
if ((LowerRun = RtlLookupElementGenericTable(&Mcb->Mapping->Table, &NeedleRun)))
if ((LowerRun = RtlLookupElementGenericTable(&Mcb->Mapping->Table, &NeedleRun)) &&
(LowerRun->StartingLbn.QuadPart < Node.StartingLbn.QuadPart))
{
ASSERT(LowerRun->RunEndVbn.QuadPart == Node.RunStartVbn.QuadPart);
Node.RunStartVbn.QuadPart = LowerRun->RunStartVbn.QuadPart;
@ -185,7 +186,8 @@ FsRtlAddBaseMcbEntry(IN PBASE_MCB OpaqueMcb,
NeedleRun.RunStartVbn.QuadPart = Node.RunEndVbn.QuadPart;
NeedleRun.RunEndVbn.QuadPart = NeedleRun.RunStartVbn.QuadPart + 1;
Mcb->Mapping->Table.CompareRoutine = McbMappingIntersectCompare;
if ((HigherRun = RtlLookupElementGenericTable(&Mcb->Mapping->Table, &NeedleRun)))
if ((HigherRun = RtlLookupElementGenericTable(&Mcb->Mapping->Table, &NeedleRun)) &&
(Node.StartingLbn.QuadPart <= HigherRun->StartingLbn.QuadPart))
{
ASSERT(HigherRun->RunStartVbn.QuadPart == Node.RunEndVbn.QuadPart);
Node.RunEndVbn.QuadPart = HigherRun->RunEndVbn.QuadPart;