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- Update the page counters in MmGetContinuousPages.

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- Add a flag to PHYSICAL_PAGE, to detect if a free page is on the zeroed or on the unzeroed list.

svn path=/trunk/; revision=10324
This commit is contained in:
Hartmut Birr
2004-07-31 09:43:54 +00:00
parent f811b0ed5c
commit b67cc5006c
1 changed files with 43 additions and 4 deletions
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reactos/ntoskrnl/mm/freelist.c
+43 -4
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@@ -30,10 +30,9 @@ typedef struct _PHYSICAL_PAGE
{
struct
{
ULONG Type:
2;
ULONG Consumer:
3;
ULONG Type: 2;
ULONG Consumer: 3;
ULONG Zero: 1;
}
Flags;
ULONG AllFlags;
@@ -251,6 +250,12 @@ MmGetContinuousPages(ULONG NumberOfBytes,
for (i = start; i < (start + length); i++)
{
RemoveEntryList(&MmPageArray[i].ListEntry);
if (MmPageArray[i].Flags.Zero == 0)
{
UnzeroedPageCount--;
}
MmStats.NrFreePages--;
MmStats.NrSystemPages++;
MmPageArray[i].Flags.Type = MM_PHYSICAL_PAGE_USED;
MmPageArray[i].Flags.Consumer = MC_NPPOOL;
MmPageArray[i].ReferenceCount = 1;
@@ -261,6 +266,20 @@ MmGetContinuousPages(ULONG NumberOfBytes,
&MmPageArray[i].ListEntry);
}
KeReleaseSpinLock(&PageListLock, oldIrql);
for (i = start; i < (start + length); i++)
{
if (MmPageArray[i].Flags.Zero == 0)
{
PHYSICAL_ADDRESS Page;
Page.QuadPart = i * PAGE_SIZE;
MiZeroPage(Page);
}
else
{
MmPageArray[i].Flags.Zero = 0;
}
}
#if defined(__GNUC__)
return((PHYSICAL_ADDRESS)((LONGLONG)start * PAGE_SIZE));
@@ -295,9 +314,11 @@ MiParseRangeToFreeList(PADDRESS_RANGE Range)
if (MmPageArray[i].Flags.Type == 0)
{
MmPageArray[i].Flags.Type = MM_PHYSICAL_PAGE_FREE;
MmPageArray[i].Flags.Zero = 0;
MmPageArray[i].ReferenceCount = 0;
InsertTailList(&FreeUnzeroedPageListHead,
&MmPageArray[i].ListEntry);
MmStats.NrFreePages++;
UnzeroedPageCount++;
}
}
@@ -323,6 +344,9 @@ MiParseRangeToBiosList(PADDRESS_RANGE Range)
if (MmPageArray[i].Flags.Type == MM_PHYSICAL_PAGE_FREE)
{
RemoveEntryList(&MmPageArray[i].ListEntry);
UnzeroedPageCount--;
MmStats.NrFreePages--;
}
if (MmPageArray[i].Flags.Type != MM_PHYSICAL_PAGE_BIOS)
@@ -332,6 +356,7 @@ MiParseRangeToBiosList(PADDRESS_RANGE Range)
MmPageArray[i].ReferenceCount = 1;
InsertTailList(&BiosPageListHead,
&MmPageArray[i].ListEntry);
MmStats.NrSystemPages++;
}
}
}
@@ -455,6 +480,7 @@ MmInitializePageList(PVOID FirstPhysKernelAddress,
*/
MmPageArray[0].Flags.Type = MM_PHYSICAL_PAGE_BIOS;
MmPageArray[0].Flags.Consumer = MC_NPPOOL;
MmPageArray[0].Flags.Zero = 0;
MmPageArray[0].ReferenceCount = 0;
InsertTailList(&BiosPageListHead,
&MmPageArray[0].ListEntry);
@@ -464,6 +490,7 @@ MmInitializePageList(PVOID FirstPhysKernelAddress,
*/
MmPageArray[1].Flags.Type = MM_PHYSICAL_PAGE_BIOS;
MmPageArray[1].Flags.Consumer = MC_NPPOOL;
MmPageArray[1].Flags.Zero = 0;
MmPageArray[1].ReferenceCount = 0;
InsertTailList(&BiosPageListHead,
&MmPageArray[1].ListEntry);
@@ -475,6 +502,7 @@ MmInitializePageList(PVOID FirstPhysKernelAddress,
for (; i<((ULONG)FirstPhysKernelAddress/PAGE_SIZE); i++)
{
MmPageArray[i].Flags.Type = MM_PHYSICAL_PAGE_FREE;
MmPageArray[i].Flags.Zero = 0;
MmPageArray[i].ReferenceCount = 0;
InsertTailList(&FreeUnzeroedPageListHead,
&MmPageArray[i].ListEntry);
@@ -485,6 +513,7 @@ MmInitializePageList(PVOID FirstPhysKernelAddress,
for (; i<((ULONG)LastPhysKernelAddress / PAGE_SIZE); i++)
{
MmPageArray[i].Flags.Type = MM_PHYSICAL_PAGE_USED;
MmPageArray[i].Flags.Zero = 0;
MmPageArray[i].Flags.Consumer = MC_NPPOOL;
MmPageArray[i].ReferenceCount = 1;
MmPageArray[i].MapCount = 1;
@@ -495,6 +524,7 @@ MmInitializePageList(PVOID FirstPhysKernelAddress,
for (; i<(0xa0000/PAGE_SIZE); i++)
{
MmPageArray[i].Flags.Type = MM_PHYSICAL_PAGE_FREE;
MmPageArray[i].Flags.Zero = 0;
MmPageArray[i].ReferenceCount = 0;
InsertTailList(&FreeUnzeroedPageListHead,
&MmPageArray[i].ListEntry);
@@ -504,6 +534,7 @@ MmInitializePageList(PVOID FirstPhysKernelAddress,
for (; i<(0x100000 / PAGE_SIZE); i++)
{
MmPageArray[i].Flags.Type = MM_PHYSICAL_PAGE_BIOS;
MmPageArray[i].Flags.Zero = 0;
MmPageArray[i].Flags.Consumer = MC_NPPOOL;
MmPageArray[i].ReferenceCount = 1;
InsertTailList(&BiosPageListHead,
@@ -516,6 +547,7 @@ MmInitializePageList(PVOID FirstPhysKernelAddress,
for (; i<(0xa0000 / PAGE_SIZE); i++)
{
MmPageArray[i].Flags.Type = MM_PHYSICAL_PAGE_FREE;
MmPageArray[i].Flags.Zero = 0;
MmPageArray[i].ReferenceCount = 0;
InsertTailList(&FreeUnzeroedPageListHead,
&MmPageArray[i].ListEntry);
@@ -525,6 +557,7 @@ MmInitializePageList(PVOID FirstPhysKernelAddress,
for (; i<(0x100000 / PAGE_SIZE); i++)
{
MmPageArray[i].Flags.Type = MM_PHYSICAL_PAGE_BIOS;
MmPageArray[i].Flags.Zero = 0;
MmPageArray[i].Flags.Consumer = MC_NPPOOL;
MmPageArray[i].ReferenceCount = 1;
InsertTailList(&BiosPageListHead,
@@ -534,6 +567,7 @@ MmInitializePageList(PVOID FirstPhysKernelAddress,
for (; i<((ULONG)FirstPhysKernelAddress/PAGE_SIZE); i++)
{
MmPageArray[i].Flags.Type = MM_PHYSICAL_PAGE_FREE;
MmPageArray[i].Flags.Zero = 0;
MmPageArray[i].ReferenceCount = 0;
InsertTailList(&FreeUnzeroedPageListHead,
&MmPageArray[i].ListEntry);
@@ -544,6 +578,7 @@ MmInitializePageList(PVOID FirstPhysKernelAddress,
for (; i<((ULONG)LastPhysKernelAddress/PAGE_SIZE); i++)
{
MmPageArray[i].Flags.Type = MM_PHYSICAL_PAGE_USED;
MmPageArray[i].Flags.Zero = 0;
MmPageArray[i].Flags.Consumer = MC_NPPOOL;
MmPageArray[i].ReferenceCount = 1;
MmPageArray[i].MapCount = 1;
@@ -556,6 +591,7 @@ MmInitializePageList(PVOID FirstPhysKernelAddress,
for (; i<MemorySizeInPages; i++)
{
MmPageArray[i].Flags.Type = MM_PHYSICAL_PAGE_FREE;
MmPageArray[i].Flags.Zero = 0;
MmPageArray[i].ReferenceCount = 0;
InsertTailList(&FreeUnzeroedPageListHead,
&MmPageArray[i].ListEntry);
@@ -819,6 +855,7 @@ MmDereferencePage(PHYSICAL_ADDRESS PhysicalAddress)
KEBUGCHECK(0);
}
MmPageArray[Start].Flags.Type = MM_PHYSICAL_PAGE_FREE;
MmPageArray[Start].Flags.Zero = 0;
InsertTailList(&FreeUnzeroedPageListHead,
&MmPageArray[Start].ListEntry);
UnzeroedPageCount++;
@@ -966,6 +1003,7 @@ MmAllocPage(ULONG Consumer, SWAPENTRY SavedSwapEntry)
KEBUGCHECK(0);
}
PageDescriptor->Flags.Type = MM_PHYSICAL_PAGE_USED;
PageDescriptor->Flags.Zero = 0;
PageDescriptor->Flags.Consumer = Consumer;
PageDescriptor->ReferenceCount = 1;
PageDescriptor->LockCount = 0;
@@ -1057,6 +1095,7 @@ MmZeroPageThreadMain(PVOID Ignored)
DbgPrint("Mapped page on freelist.\n");
KEBUGCHECK(0);
}
PageDescriptor->Flags.Zero = 1;
PageDescriptor->Flags.Type = MM_PHYSICAL_PAGE_FREE;
InsertHeadList(&FreeZeroedPageListHead, ListEntry);
}