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- Fixed the allocation of the retrieval pointers for pagefiles

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which do not end at a cluster boundary.

svn path=/trunk/; revision=5510
This commit is contained in:
Hartmut Birr 2003-08-10 20:03:10 +00:00
parent 6ae4b24c97
commit da65ace973
1 changed files with 6 additions and 5 deletions
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11
reactos/ntoskrnl/mm/pagefile.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: pagefile.c,v 1.33 2003/07/21 21:53:53 royce Exp $
/* $Id: pagefile.c,v 1.34 2003/08/10 20:03:10 hbirr Exp $
*
* PROJECT: ReactOS kernel
* FILE: ntoskrnl/mm/pagefile.c
@ -581,6 +581,7 @@ NtCreatePagingFile(IN PUNICODE_STRING FileName,
ULONG BytesPerAllocationUnit;
LARGE_INTEGER Vcn;
ULONG ExtentCount;
ULONG MaxVcn;
DPRINT("NtCreatePagingFile(FileName %wZ, InitialSize %I64d)\n",
FileName, InitialSize->QuadPart);
@ -627,7 +628,7 @@ NtCreatePagingFile(IN PUNICODE_STRING FileName,
}
BytesPerAllocationUnit = FsSizeInformation.SectorsPerAllocationUnit * FsSizeInformation.BytesPerSector;
if (BytesPerAllocationUnit < PAGE_SIZE)
if (BytesPerAllocationUnit % PAGE_SIZE)
{
NtClose(FileHandle);
return STATUS_UNSUCCESSFUL;
@ -667,6 +668,7 @@ NtCreatePagingFile(IN PUNICODE_STRING FileName,
Vcn.QuadPart = 0LL;
ExtentCount = 0;
MaxVcn = (InitialSize->QuadPart + BytesPerAllocationUnit - 1) / BytesPerAllocationUnit;
while(1)
{
Status = NtFsControlFile(FileHandle,
@ -687,7 +689,7 @@ NtCreatePagingFile(IN PUNICODE_STRING FileName,
return(Status);
}
ExtentCount += RetrievalPointers->NumberOfPairs;
if (RetrievalPointers->Pair[0].Vcn < (ULONGLONG) InitialSize->QuadPart / BytesPerAllocationUnit)
if ((ULONG)RetrievalPointers->Pair[0].Vcn < MaxVcn)
{
Vcn.QuadPart = RetrievalPointers->Pair[0].Vcn;
}
@ -759,8 +761,7 @@ NtCreatePagingFile(IN PUNICODE_STRING FileName,
}
if (PagingFile->RetrievalPointers->NumberOfPairs != ExtentCount ||
PagingFile->RetrievalPointers->Pair[ExtentCount - 1].Vcn !=
(ULONGLONG) InitialSize->QuadPart / BytesPerAllocationUnit)
(ULONG)PagingFile->RetrievalPointers->Pair[ExtentCount - 1].Vcn != MaxVcn)
{
ExFreePool(PagingFile->RetrievalPointers);
ExFreePool(PagingFile->AllocMap);