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[SMSS]
- Create a new default paging file if no paging files exist. - Set the calculated paging file sizes in the registry. - Remove predefined paging file name from the hivesys*.inf files. Fixes bug #4048. svn path=/trunk/; revision=47505
This commit is contained in:
Eric Kohl
parent
19d33c5dc1
commit
f4d415767d
3 changed files with 276 additions and 24 deletions
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@ -225,34 +225,288 @@ Cleanup:
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}
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static NTSTATUS
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SmpGetFreeDiskSpace(IN PWSTR PageFileName,
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OUT PLARGE_INTEGER FreeDiskSpaceInMB)
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{
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FILE_FS_SIZE_INFORMATION FileFsSize;
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IO_STATUS_BLOCK IoStatusBlock;
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HANDLE hFile;
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UNICODE_STRING NtPathU;
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LARGE_INTEGER FreeBytes;
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OBJECT_ATTRIBUTES ObjectAttributes;
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WCHAR RootPath[5];
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NTSTATUS Status;
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/*
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* copy the drive letter, the colon and the slash,
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* tack a null on the end
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*/
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RootPath[0] = PageFileName[0];
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RootPath[1] = L':';
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RootPath[2] = L'\\';
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RootPath[3] = L'\0';
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DPRINT("Root drive X:\\...\"%S\"\n",RootPath);
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if (!RtlDosPathNameToNtPathName_U(RootPath,
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&NtPathU,
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NULL,
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NULL))
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{
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DPRINT1("Invalid path to root of drive\n");
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return STATUS_OBJECT_PATH_INVALID;
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}
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InitializeObjectAttributes(&ObjectAttributes,
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&NtPathU,
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OBJ_CASE_INSENSITIVE,
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NULL,
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NULL);
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/* Get a handle to the root to find the free space on the drive */
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Status = NtCreateFile(&hFile,
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0,
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&ObjectAttributes,
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&IoStatusBlock,
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NULL,
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0,
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FILE_SHARE_READ | FILE_SHARE_WRITE,
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FILE_OPEN,
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0,
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NULL,
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0);
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RtlFreeHeap(RtlGetProcessHeap(),
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0,
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NtPathU.Buffer);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("Could not open a handle to the volume.\n");
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return Status;
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}
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Status = NtQueryVolumeInformationFile(hFile,
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&IoStatusBlock,
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&FileFsSize,
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sizeof(FILE_FS_SIZE_INFORMATION),
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FileFsSizeInformation);
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NtClose(hFile);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("Querying the volume free space failed!\n");
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return Status;
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}
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FreeBytes.QuadPart = FileFsSize.BytesPerSector *
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FileFsSize.SectorsPerAllocationUnit *
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FileFsSize.AvailableAllocationUnits.QuadPart;
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FreeDiskSpaceInMB->QuadPart = FreeBytes.QuadPart >> 20;
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return STATUS_SUCCESS;
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}
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static NTSTATUS
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SmpSetDefaultPageFileData(IN PWSTR PageFileName,
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IN PLARGE_INTEGER InitialSizeInMB,
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IN PLARGE_INTEGER MaximumSizeInMB)
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{
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WCHAR ValueString[MAX_PATH * 2];
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ULONG ValueLength;
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/* Format the value string */
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swprintf(ValueString,
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L"%s %I64u %I64u",
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PageFileName,
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InitialSizeInMB->QuadPart,
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MaximumSizeInMB->QuadPart);
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/*
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* Append another zero character because it is a multi string value
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* (REG_MULTI_SZ) and calculate the total string length.
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*/
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ValueLength = wcslen(ValueString) + 1;
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ValueString[ValueLength] = 0;
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ValueLength++;
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/* Write the page file data */
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return RtlWriteRegistryValue(RTL_REGISTRY_CONTROL,
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L"\\Session Manager\\Memory Management",
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L"PagingFiles",
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REG_MULTI_SZ,
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ValueString,
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ValueLength * sizeof(WCHAR));
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}
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static NTSTATUS
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SmpCreatePageFile(IN PWSTR PageFileName,
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IN PLARGE_INTEGER InitialSizeInMB,
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IN PLARGE_INTEGER MaximumSizeInMB)
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{
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LARGE_INTEGER InitialSize;
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LARGE_INTEGER MaximumSize;
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UNICODE_STRING FileName;
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NTSTATUS Status;
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/* Get the NT path name of the page file */
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if (!RtlDosPathNameToNtPathName_U(PageFileName,
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&FileName,
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NULL,
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NULL))
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{
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return STATUS_OBJECT_PATH_INVALID;
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}
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/* Convert sizes in megabytes to sizes in bytes */
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InitialSize.QuadPart = InitialSizeInMB->QuadPart << 20;
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MaximumSize.QuadPart = MaximumSizeInMB->QuadPart << 20;
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/* Create the pageing file */
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Status = NtCreatePagingFile(&FileName,
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&InitialSize,
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&MaximumSize,
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0);
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if (! NT_SUCCESS(Status))
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{
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DPRINT("Creation of paging file %wZ with size %I64d MB failed (status 0x%x)\n",
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&FileName, InitialSizeInMB->QuadPart, Status);
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}
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/* Release the file name */
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RtlFreeHeap(RtlGetProcessHeap(),
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0,
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FileName.Buffer);
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return Status;
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}
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static NTSTATUS
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SmpCreateDefaultPagingFile(VOID)
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{
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SYSTEM_BASIC_INFORMATION SysBasicInfo;
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LARGE_INTEGER MemorySizeInMB;
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LARGE_INTEGER FreeDiskSpaceInMB;
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LARGE_INTEGER InitialSizeInMB;
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LARGE_INTEGER MaximumSizeInMB;
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NTSTATUS Status = STATUS_SUCCESS;
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WCHAR PageFileName[MAX_PATH];
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DPRINT("Creating a default paging file\n");
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Status = NtQuerySystemInformation(SystemBasicInformation,
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&SysBasicInfo,
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sizeof(SysBasicInfo),
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NULL);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("Could not query for physical memory size.\n");
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return Status;
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}
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DPRINT("PageSize: %d, PhysicalPages: %d, TotalMem: %d\n",
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SysBasicInfo.PageSize,
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SysBasicInfo.NumberOfPhysicalPages,
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(SysBasicInfo.NumberOfPhysicalPages * SysBasicInfo.PageSize) / 1024);
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MemorySizeInMB.QuadPart = (SysBasicInfo.NumberOfPhysicalPages * SysBasicInfo.PageSize) >> 20;
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DPRINT("MemorySize %I64u MB\n",
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MemorySizeInMB.QuadPart);
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/* Build the default page file name */
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PageFileName[0] = SharedUserData->NtSystemRoot[0];
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PageFileName[1] = 0;
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wcscat(PageFileName, L":\\pagefile.sys");
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Status = SmpGetFreeDiskSpace(PageFileName,
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&FreeDiskSpaceInMB);
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if (!NT_SUCCESS(Status))
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{
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return Status;
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}
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DPRINT("FreeDiskSpace %I64u MB\n",
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FreeDiskSpaceInMB.QuadPart);
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InitialSizeInMB.QuadPart = MemorySizeInMB.QuadPart + (MemorySizeInMB.QuadPart / 2);
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MaximumSizeInMB.QuadPart = InitialSizeInMB.QuadPart * 2;
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if (InitialSizeInMB.QuadPart > (FreeDiskSpaceInMB.QuadPart / 4))
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{
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DPRINT("Inital Size took more then 25%% of free disk space\n");
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/*
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* Set by percentage of free space
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* intial is 20%, and max is 25%
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*/
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InitialSizeInMB.QuadPart = FreeDiskSpaceInMB.QuadPart / 5;
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MaximumSizeInMB.QuadPart = FreeDiskSpaceInMB.QuadPart / 4;
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/* The page file is more then a gig, size it down */
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if (InitialSizeInMB.QuadPart > 1024)
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{
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InitialSizeInMB.QuadPart = 1024; /* 1GB */
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MaximumSizeInMB.QuadPart = 1536; /* 1.5GB */
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}
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}
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DPRINT("InitialSize %I64u MB MaximumSize %I64u MB\n",
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InitialSizeInMB.QuadPart,
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MaximumSizeInMB.QuadPart);
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Status = SmpSetDefaultPageFileData(PageFileName,
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&InitialSizeInMB,
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&MaximumSizeInMB);
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if (!NT_SUCCESS(Status))
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{
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return Status;
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}
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return SmpCreatePageFile(PageFileName,
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&InitialSizeInMB,
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&MaximumSizeInMB);
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}
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NTSTATUS
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SmCreatePagingFiles(VOID)
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{
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RTL_QUERY_REGISTRY_TABLE QueryTable[2];
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NTSTATUS Status;
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RTL_QUERY_REGISTRY_TABLE QueryTable[2];
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NTSTATUS Status;
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DPRINT("creating system paging files\n");
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/*
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* Disable paging file on MiniNT/Live CD.
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*/
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if (RtlCheckRegistryKey(RTL_REGISTRY_CONTROL, L"MiniNT") == STATUS_SUCCESS)
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DPRINT("creating system paging files\n");
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/* Disable paging file on MiniNT/Live CD. */
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if (RtlCheckRegistryKey(RTL_REGISTRY_CONTROL, L"MiniNT") == STATUS_SUCCESS)
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{
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return STATUS_SUCCESS;
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return STATUS_SUCCESS;
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}
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RtlZeroMemory(&QueryTable,
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sizeof(QueryTable));
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RtlZeroMemory(&QueryTable,
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sizeof(QueryTable));
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QueryTable[0].Name = L"PagingFiles";
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QueryTable[0].QueryRoutine = SmpPagingFilesQueryRoutine;
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QueryTable[0].Name = L"PagingFiles";
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QueryTable[0].QueryRoutine = SmpPagingFilesQueryRoutine;
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QueryTable[0].Flags = RTL_QUERY_REGISTRY_REQUIRED;
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Status = RtlQueryRegistryValues(RTL_REGISTRY_CONTROL,
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L"\\Session Manager\\Memory Management",
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QueryTable,
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NULL,
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NULL);
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Status = RtlQueryRegistryValues(RTL_REGISTRY_CONTROL,
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L"\\Session Manager\\Memory Management",
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QueryTable,
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NULL,
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NULL);
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if (Status == STATUS_OBJECT_NAME_NOT_FOUND)
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{
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Status = SmpCreateDefaultPagingFile();
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}
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return(Status);
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return Status;
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}
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@ -783,9 +783,8 @@ HKLM,"SYSTEM\CurrentControlSet\Control\Session Manager\KnownDlls","version",0x00
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HKLM,"SYSTEM\CurrentControlSet\Control\Session Manager\KnownDlls","wininet",0x00000000,"wininet.dll"
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HKLM,"SYSTEM\CurrentControlSet\Control\Session Manager\KnownDlls","wldap32",0x00000000,"wldap32.dll"
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; Pagefile settings
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HKLM,"SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management","PagingFiles",0x00010000, \
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"C:\pagefile.sys"
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; Memory Management
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HKLM,"SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management",,0x00000012
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; Subsystems
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HKLM,"SYSTEM\CurrentControlSet\Control\Session Manager\Subsystems","Debug",0x00020000,""
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@ -930,9 +930,8 @@ HKLM,"SYSTEM\CurrentControlSet\Control\Session Manager\KnownDlls","version",0x00
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HKLM,"SYSTEM\CurrentControlSet\Control\Session Manager\KnownDlls","wininet",0x00000000,"wininet.dll"
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HKLM,"SYSTEM\CurrentControlSet\Control\Session Manager\KnownDlls","wldap32",0x00000000,"wldap32.dll"
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; Pagefile settings
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HKLM,"SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management","PagingFiles",0x00010000, \
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"C:\pagefile.sys"
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; Memory Management
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HKLM,"SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management",,0x00000012
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; Subsystems
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HKLM,"SYSTEM\CurrentControlSet\Control\Session Manager\Subsystems","Debug",0x00020000,""
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