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Remove my changes to pagefile creation because they cause a hang for some people.

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svn path=/trunk/; revision=20163
This commit is contained in:
Brandon Turner 2005-12-14 12:41:38 +00:00
parent bc5692342a
commit fe84901940
1 changed files with 44 additions and 141 deletions
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185
reactos/subsys/smss/initpage.c
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@ -28,163 +28,66 @@
#define NDEBUG #define NDEBUG
#include <debug.h> #include <debug.h>
#define GIGABYTE (1024 * 1024 * 1024) /* One Gigabyte */
static NTSTATUS STDCALL static NTSTATUS STDCALL
SmpPagingFilesQueryRoutine(PWSTR ValueName, SmpPagingFilesQueryRoutine(PWSTR ValueName,
ULONG ValueType, ULONG ValueType,
PVOID ValueData, PVOID ValueData,
ULONG ValueLength, ULONG ValueLength,
PVOID Context, PVOID Context,
PVOID EntryContext) PVOID EntryContext)
{ {
UNICODE_STRING FileName; UNICODE_STRING FileName;
LARGE_INTEGER InitialSize; LARGE_INTEGER InitialSize;
LARGE_INTEGER MaximumSize; LARGE_INTEGER MaximumSize;
NTSTATUS Status = STATUS_SUCCESS; NTSTATUS Status;
LPWSTR p; LPWSTR p;
WCHAR RootDriveLetter[5];
DPRINT("ValueName '%S' Type %lu Length %lu\n", ValueName, ValueType, ValueLength);
DPRINT("ValueData '%S'\n", (PWSTR)ValueData);
DPRINT("ValueName '%S' Type %lu Length %lu\n", ValueName, ValueType, ValueLength); if (ValueType != REG_SZ)
DPRINT("ValueData '%S'\n", (PWSTR)ValueData); {
return(STATUS_SUCCESS);
}
if (ValueType != REG_SZ) /*
{
return STATUS_INVALID_PARAMETER_2;
}
if (!RtlDosPathNameToNtPathName_U ((LPWSTR)ValueData,
&FileName,
NULL,
NULL))
{
return STATUS_OBJECT_PATH_NOT_FOUND;
}
/*
* Format: "<path>[ <initial_size>[ <maximum_size>]]" * Format: "<path>[ <initial_size>[ <maximum_size>]]"
*/ */
if ((p = wcschr(ValueData, ' ')) != NULL) if ((p = wcschr(ValueData, ' ')) != NULL)
{ {
*p = L'\0'; *p = L'\0';
InitialSize.QuadPart = wcstoul(p + 1, &p, 0) * 256 * 4096; InitialSize.QuadPart = wcstoul(p + 1, &p, 0) * 256 * 4096;
if (*p == ' ') if (*p == ' ')
{ {
MaximumSize.QuadPart = wcstoul(p + 1, NULL, 0) * 256 * 4096; MaximumSize.QuadPart = wcstoul(p + 1, NULL, 0) * 256 * 4096;
} }
else else
MaximumSize = InitialSize; MaximumSize = InitialSize;
} }
else
{
InitialSize.QuadPart = 50 * 4096;
MaximumSize.QuadPart = 80 * 4096;
}
/* If there is only a file name or if initial and max are both 0 if (!RtlDosPathNameToNtPathName_U ((LPWSTR)ValueData,
the system will pick the sizes. 10% and 20% for initial and max &FileName,
respectivly. There is a max of 1 gig before it doesnt make it NULL,
bigger. */ NULL))
if((InitialSize.QuadPart == 0 && MaximumSize.QuadPart == 0) || p == NULL) {
{ return (STATUS_SUCCESS);
FILE_FS_SIZE_INFORMATION FileFsSize; }
IO_STATUS_BLOCK IoStatusBlock;
HANDLE hFile;
UNICODE_STRING NtPathU;
LARGE_INTEGER FreeBytes;
OBJECT_ATTRIBUTES ObjectAttributes;
DPRINT("System managed pagefile...\n"); DPRINT("SMSS: Created paging file %wZ with size %dKB\n",
/* Make sure the path that is given for the file actually has the drive in it. &FileName, InitialSize.QuadPart / 1024);
At this point if there is not file name, no sizes will be set therefore no page Status = NtCreatePagingFile(&FileName,
file will be created */ &InitialSize,
if (wcslen(((PWSTR)ValueData)) > 2 && &MaximumSize,
((PWSTR)ValueData)[1] == L':' && 0);
((PWSTR)ValueData)[2] == L'\\')
{
/* copy the drive letter, the colon and the slash,
tack a null on the end */
p = ((PWSTR)ValueData);
wcsncpy(RootDriveLetter,p,3);
wcscat(RootDriveLetter,L"\0");
DPRINT("At least X:\\...%S\n",RootDriveLetter);
if (!RtlDosPathNameToNtPathName_U((LPWSTR)RootDriveLetter, RtlFreeUnicodeString(&FileName);
&NtPathU,
NULL,
NULL))
{
DPRINT("Invalid path\n");
return STATUS_OBJECT_PATH_NOT_FOUND;
}
InitializeObjectAttributes(&ObjectAttributes, return(STATUS_SUCCESS);
&NtPathU,
FILE_READ_ATTRIBUTES,
NULL,
NULL);
/* Get a handle to the root to find the free space on the drive */
Status = NtCreateFile (&hFile,
FILE_GENERIC_READ,
&ObjectAttributes,
&IoStatusBlock,
NULL,
0,
FILE_SHARE_READ,
FILE_OPEN,
0,
NULL,
0);
RtlFreeUnicodeString(&NtPathU);
if (!NT_SUCCESS(Status))
{
DPRINT ("Invalid handle\n");
return Status;
}
Status = NtQueryVolumeInformationFile(hFile,
&IoStatusBlock,
&FileFsSize,
sizeof(FILE_FS_SIZE_INFORMATION),
FileFsSizeInformation);
FreeBytes.QuadPart = FileFsSize.BytesPerSector *
FileFsSize.SectorsPerAllocationUnit *
FileFsSize.AvailableAllocationUnits.QuadPart;
DPRINT ("Free:%d\n",FreeBytes.QuadPart);
/* Set by percentage */
InitialSize.QuadPart = FreeBytes.QuadPart / 10;
MaximumSize.QuadPart = FreeBytes.QuadPart / 5;
/* The page file is more then a gig, size it down */
if (InitialSize.QuadPart > GIGABYTE)
{
InitialSize.QuadPart = GIGABYTE;
MaximumSize.QuadPart = GIGABYTE;
}
ZwClose(hFile);
}
else
{
/* No page file will be created,
but we return succes because that
is what the setting wants */
return (STATUS_SUCCESS);
}
}
DPRINT("SMSS: Created paging file %wZ with size %dKB\n",
&FileName, InitialSize.QuadPart / 1024);
Status = NtCreatePagingFile(&FileName,
&InitialSize,
&MaximumSize,
0);
RtlFreeUnicodeString(&FileName);
return Status;
} }