https://git.reactos.org/?p=reactos.git;a=commitdiff;h=bfc6a7957c8afb64244fce...
commit bfc6a7957c8afb64244fce59450a56fd2219b8ee Author: Pierre Schweitzer pierre@reactos.org AuthorDate: Thu Aug 16 12:42:34 2018 +0200 Commit: Pierre Schweitzer pierre@reactos.org CommitDate: Thu Aug 16 12:42:34 2018 +0200
[NTOSKRNL] Page files don't have an init size, but a minimum size
NFC --- ntoskrnl/mm/pagefile.c | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-)
diff --git a/ntoskrnl/mm/pagefile.c b/ntoskrnl/mm/pagefile.c index 38c93d6559..15d8ae0033 100644 --- a/ntoskrnl/mm/pagefile.c +++ b/ntoskrnl/mm/pagefile.c @@ -345,7 +345,7 @@ MmAllocSwapPage(VOID)
NTSTATUS NTAPI NtCreatePagingFile(IN PUNICODE_STRING FileName, - IN PLARGE_INTEGER InitialSize, + IN PLARGE_INTEGER MinimumSize, IN PLARGE_INTEGER MaximumSize, IN ULONG Reserved) { @@ -359,14 +359,14 @@ NtCreatePagingFile(IN PUNICODE_STRING FileName, ULONG Count; KPROCESSOR_MODE PreviousMode; UNICODE_STRING PageFileName; - LARGE_INTEGER SafeInitialSize, SafeMaximumSize, AllocationSize; + LARGE_INTEGER SafeMinimumSize, SafeMaximumSize, AllocationSize; FILE_FS_DEVICE_INFORMATION FsDeviceInfo; SECURITY_DESCRIPTOR SecurityDescriptor; PACL Dacl; PWSTR Buffer;
- DPRINT("NtCreatePagingFile(FileName %wZ, InitialSize %I64d)\n", - FileName, InitialSize->QuadPart); + DPRINT("NtCreatePagingFile(FileName %wZ, MinimumSize %I64d)\n", + FileName, MinimumSize->QuadPart);
PAGED_CODE();
@@ -386,7 +386,7 @@ NtCreatePagingFile(IN PUNICODE_STRING FileName,
_SEH2_TRY { - SafeInitialSize = ProbeForReadLargeInteger(InitialSize); + SafeMinimumSize = ProbeForReadLargeInteger(MinimumSize); SafeMaximumSize = ProbeForReadLargeInteger(MaximumSize);
PageFileName.Length = FileName->Length; @@ -402,7 +402,7 @@ NtCreatePagingFile(IN PUNICODE_STRING FileName, } else { - SafeInitialSize = *InitialSize; + SafeMinimumSize = *MinimumSize; SafeMaximumSize = *MaximumSize;
PageFileName.Length = FileName->Length; @@ -412,7 +412,7 @@ NtCreatePagingFile(IN PUNICODE_STRING FileName,
/* Pagefiles can't be larger than 4GB and ofcourse the minimum should be smaller than the maximum */ - if (0 != SafeInitialSize.u.HighPart) + if (0 != SafeMinimumSize.u.HighPart) { return STATUS_INVALID_PARAMETER_2; } @@ -420,7 +420,7 @@ NtCreatePagingFile(IN PUNICODE_STRING FileName, { return STATUS_INVALID_PARAMETER_3; } - if (SafeMaximumSize.u.LowPart < SafeInitialSize.u.LowPart) + if (SafeMaximumSize.u.LowPart < SafeMinimumSize.u.LowPart) { return STATUS_INVALID_PARAMETER_MIX; } @@ -535,7 +535,7 @@ NtCreatePagingFile(IN PUNICODE_STRING FileName, * of the paging file is cluster 3042 but cluster 3043 is NOT part of the * paging file but of another file. We can't write a complete page (4096 * bytes) to the physical location of cluster 3042 then. */ - AllocationSize.QuadPart = SafeInitialSize.QuadPart + PAGE_SIZE; + AllocationSize.QuadPart = SafeMinimumSize.QuadPart + PAGE_SIZE;
/* First, attempt to replace the page file, if existing */ Status = IoCreateFile(&FileHandle, @@ -669,10 +669,10 @@ NtCreatePagingFile(IN PUNICODE_STRING FileName, /* DACL is no longer needed, free it */ ExFreePoolWithTag(Dacl, 'lcaD');
- /* Set its end of file to initial size */ + /* Set its end of file to minimal size */ Status = ZwSetInformationFile(FileHandle, &IoStatus, - &SafeInitialSize, + &SafeMinimumSize, sizeof(LARGE_INTEGER), FileEndOfFileInformation); if (!NT_SUCCESS(Status) || !NT_SUCCESS(IoStatus.Status)) @@ -720,8 +720,8 @@ NtCreatePagingFile(IN PUNICODE_STRING FileName, PagingFile->FileHandle = FileHandle; PagingFile->FileObject = FileObject; PagingFile->MaximumSize.QuadPart = SafeMaximumSize.QuadPart; - PagingFile->CurrentSize.QuadPart = SafeInitialSize.QuadPart; - PagingFile->FreePages = (ULONG)(SafeInitialSize.QuadPart / PAGE_SIZE); + PagingFile->CurrentSize.QuadPart = SafeMinimumSize.QuadPart; + PagingFile->FreePages = (ULONG)(SafeMinimumSize.QuadPart / PAGE_SIZE); PagingFile->UsedPages = 0; PagingFile->PageFileName = PageFileName;
-
Pierre Schweitzer