mirror of
https://github.com/reactos/reactos.git
synced 2025-06-03 16:30:26 +00:00
[NTOS]: Implement MiRemoveAnyPage and MiRemovePageByColor, but only using the list heads, and not the color list heads. Unused.
[NTOS]: Fixup unused MiInsertPageInFreeList variables ot match the other functions (ColorTable vs ColorHead). svn path=/trunk/; revision=47149
This commit is contained in:
Sir Richard
parent
a38d98d504
commit
af06182171
1 changed files with 182 additions and 9 deletions
|
|
@ -244,6 +244,175 @@ MiUnlinkFreeOrZeroedPage(IN PMMPFN Entry)
|
|||
}
|
||||
}
|
||||
|
||||
PFN_NUMBER
|
||||
NTAPI
|
||||
MiRemovePageByColor(IN PFN_NUMBER PageIndex,
|
||||
IN ULONG Color)
|
||||
{
|
||||
PMMPFN Pfn1;
|
||||
PMMPFNLIST ListHead;
|
||||
MMLISTS ListName;
|
||||
PFN_NUMBER OldFlink, OldBlink;
|
||||
ULONG OldColor, OldCache;
|
||||
#if 0
|
||||
PMMCOLOR_TABLES ColorTable;
|
||||
#endif
|
||||
/* Make sure PFN lock is held */
|
||||
ASSERT(KeGetCurrentIrql() == DISPATCH_LEVEL);
|
||||
ASSERT(Color < MmSecondaryColors);
|
||||
|
||||
/* Get the PFN entry */
|
||||
Pfn1 = MiGetPfnEntry(PageIndex);
|
||||
ASSERT(Pfn1->u3.e1.RemovalRequested == 0);
|
||||
ASSERT(Pfn1->u3.e1.Rom == 0);
|
||||
|
||||
/* Capture data for later */
|
||||
OldColor = Pfn1->u3.e1.PageColor;
|
||||
OldCache = Pfn1->u3.e1.CacheAttribute;
|
||||
|
||||
/* Could be either on free or zero list */
|
||||
ListHead = MmPageLocationList[Pfn1->u3.e1.PageLocation];
|
||||
ListName = ListHead->ListName;
|
||||
ASSERT(ListName <= FreePageList);
|
||||
|
||||
/* Remove a page */
|
||||
ListHead->Total--;
|
||||
|
||||
/* Get the forward and back pointers */
|
||||
OldFlink = Pfn1->u1.Flink;
|
||||
OldBlink = Pfn1->u2.Blink;
|
||||
|
||||
/* Check if the next entry is the list head */
|
||||
if (OldFlink != LIST_HEAD)
|
||||
{
|
||||
/* It is not, so set the backlink of the actual entry, to our backlink */
|
||||
MiGetPfnEntry(OldFlink)->u2.Blink = OldBlink;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Set the list head's backlink instead */
|
||||
ListHead->Blink = OldFlink;
|
||||
}
|
||||
|
||||
/* Check if the back entry is the list head */
|
||||
if (OldBlink != LIST_HEAD)
|
||||
{
|
||||
/* It is not, so set the backlink of the actual entry, to our backlink */
|
||||
MiGetPfnEntry(OldBlink)->u1.Flink = OldFlink;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Set the list head's backlink instead */
|
||||
ListHead->Flink = OldFlink;
|
||||
}
|
||||
|
||||
/* We are not on a list anymore */
|
||||
Pfn1->u1.Flink = Pfn1->u2.Blink = 0;
|
||||
|
||||
/* Zero flags but restore color and cache */
|
||||
Pfn1->u3.e2.ShortFlags = 0;
|
||||
Pfn1->u3.e1.PageColor = OldColor;
|
||||
Pfn1->u3.e1.CacheAttribute = OldCache;
|
||||
#if 0 // When switching to ARM3
|
||||
/* Get the first page on the color list */
|
||||
ColorTable = &MmFreePagesByColor[ListName][Color];
|
||||
ASSERT(ColorTable->Count >= 1);
|
||||
|
||||
/* Set the forward link to whoever we were pointing to */
|
||||
ColorTable->Flink = Pfn1->OriginalPte.u.Long;
|
||||
if (ColorTable->Flink == LIST_HEAD)
|
||||
{
|
||||
/* This is the beginning of the list, so set the sentinel value */
|
||||
ColorTable->Blink = LIST_HEAD;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* The list is empty, so we are the first page */
|
||||
MiGetPfnEntry(ColorTable->Flink)->u4.PteFrame = -1;
|
||||
}
|
||||
|
||||
/* One more page */
|
||||
ColorTable->Total++;
|
||||
#endif
|
||||
/* See if we hit any thresholds */
|
||||
if (MmAvailablePages == MmHighMemoryThreshold)
|
||||
{
|
||||
/* Clear the high memory event */
|
||||
KeClearEvent(MiHighMemoryEvent);
|
||||
}
|
||||
else if (MmAvailablePages == MmLowMemoryThreshold)
|
||||
{
|
||||
/* Signal the low memory event */
|
||||
KeSetEvent(MiLowMemoryEvent, 0, FALSE);
|
||||
}
|
||||
|
||||
/* One less page */
|
||||
if (--MmAvailablePages < MmMinimumFreePages)
|
||||
{
|
||||
/* FIXME: Should wake up the MPW and working set manager, if we had one */
|
||||
}
|
||||
|
||||
/* Return the page */
|
||||
return PageIndex;
|
||||
}
|
||||
|
||||
PFN_NUMBER
|
||||
NTAPI
|
||||
MiRemoveAnyPage(IN ULONG Color)
|
||||
{
|
||||
PFN_NUMBER PageIndex;
|
||||
PMMPFN Pfn1;
|
||||
|
||||
/* Make sure PFN lock is held and we have pages */
|
||||
ASSERT(KeGetCurrentIrql() == DISPATCH_LEVEL);
|
||||
ASSERT(MmAvailablePages != 0);
|
||||
ASSERT(Color < MmSecondaryColors);
|
||||
|
||||
/* Check the colored free list */
|
||||
#if 0 // Enable when using ARM3 database */
|
||||
PageIndex = MmFreePagesByColor[FreePageList][Color].Flink;
|
||||
if (PageIndex == LIST_HEAD)
|
||||
{
|
||||
/* Check the colored zero list */
|
||||
PageIndex = MmFreePagesByColor[ZeroedPageList][Color].Flink;
|
||||
if (PageIndex == LIST_HEAD)
|
||||
{
|
||||
#endif
|
||||
/* Check the free list */
|
||||
PageIndex = MmFreePageListHead.Flink;
|
||||
Color = PageIndex & MmSecondaryColorMask;
|
||||
if (PageIndex == LIST_HEAD)
|
||||
{
|
||||
/* Check the zero list */
|
||||
ASSERT(MmFreePageListHead.Total == 0);
|
||||
PageIndex = MmZeroedPageListHead.Flink;
|
||||
Color = PageIndex & MmSecondaryColorMask;
|
||||
ASSERT(PageIndex != LIST_HEAD);
|
||||
if (PageIndex == LIST_HEAD)
|
||||
{
|
||||
/* FIXME: Should check the standby list */
|
||||
ASSERT(MmZeroedPageListHead.Total == 0);
|
||||
}
|
||||
}
|
||||
#if 0 // Enable when using ARM3 database */
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Remove the page from its list */
|
||||
PageIndex = MiRemovePageByColor(PageIndex, Color);
|
||||
|
||||
/* Sanity checks */
|
||||
Pfn1 = MiGetPfnEntry(PageIndex);
|
||||
ASSERT((Pfn1->u3.e1.PageLocation == FreePageList) ||
|
||||
(Pfn1->u3.e1.PageLocation == ZeroedPageList));
|
||||
ASSERT(Pfn1->u3.e2.ReferenceCount == 0);
|
||||
ASSERT(Pfn1->u2.ShareCount == 0);
|
||||
|
||||
/* Return the page */
|
||||
return PageIndex;
|
||||
}
|
||||
|
||||
PMMPFN
|
||||
NTAPI
|
||||
MiRemoveHeadList(IN PMMPFNLIST ListHead)
|
||||
|
|
@ -285,10 +454,12 @@ MiInsertPageInFreeList(IN PFN_NUMBER PageFrameIndex)
|
|||
{
|
||||
PMMPFNLIST ListHead;
|
||||
PFN_NUMBER LastPage;
|
||||
PMMPFN Pfn1, Blink;
|
||||
PMMPFN Pfn1;
|
||||
#if 0
|
||||
ULONG Color;
|
||||
PMMCOLOR_TABLES ColorHead;
|
||||
|
||||
PMMPFN Blink;
|
||||
PMMCOLOR_TABLES ColorTable;
|
||||
#endif
|
||||
/* Make sure the page index is valid */
|
||||
ASSERT((PageFrameIndex != 0) &&
|
||||
(PageFrameIndex <= MmHighestPhysicalPage) &&
|
||||
|
|
@ -351,21 +522,22 @@ MiInsertPageInFreeList(IN PFN_NUMBER PageFrameIndex)
|
|||
KeSetEvent(MiHighMemoryEvent, 0, FALSE);
|
||||
}
|
||||
|
||||
#if 0 // When using ARM3 PFN
|
||||
/* Get the page color */
|
||||
Color = PageFrameIndex & MmSecondaryColorMask;
|
||||
|
||||
/* Get the first page on the color list */
|
||||
ColorHead = &MmFreePagesByColor[FreePageList][Color];
|
||||
if (ColorHead->Flink == LIST_HEAD)
|
||||
ColorTable = &MmFreePagesByColor[FreePageList][Color];
|
||||
if (ColorTable->Flink == LIST_HEAD)
|
||||
{
|
||||
/* The list is empty, so we are the first page */
|
||||
Pfn1->u4.PteFrame = -1;
|
||||
ColorHead->Flink = PageFrameIndex;
|
||||
ColorTable->Flink = PageFrameIndex;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Get the previous page */
|
||||
Blink = (PMMPFN)ColorHead->Blink;
|
||||
Blink = (PMMPFN)ColorTable->Blink;
|
||||
|
||||
/* Make it link to us */
|
||||
Pfn1->u4.PteFrame = MI_PFNENTRY_TO_PFN(Blink);
|
||||
|
|
@ -373,11 +545,12 @@ MiInsertPageInFreeList(IN PFN_NUMBER PageFrameIndex)
|
|||
}
|
||||
|
||||
/* Now initialize our own list pointers */
|
||||
ColorHead->Blink = Pfn1;
|
||||
ColorTable->Blink = Pfn1;
|
||||
Pfn1->OriginalPte.u.Long = LIST_HEAD;
|
||||
|
||||
/* And increase the count in the colored list */
|
||||
ColorHead->Count++;
|
||||
ColorTable->Count++;
|
||||
#endif
|
||||
|
||||
/* FIXME: Notify zero page thread if enough pages are on the free list now */
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue