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[NTOSKRNL]

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- Fix PDE reference counting
- Now only the recursive fault remains as an issue in the page out path

svn path=/trunk/; revision=55898
This commit is contained in:
Cameron Gutman 2012-02-28 09:30:53 +00:00
parent 24264b8dc2
commit 72a7d22233
3 changed files with 21 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

4
reactos/ntoskrnl/cache/section/data.c vendored
View file

@ -676,6 +676,10 @@ MmFreeCacheSectionPage
MmDeleteRmap(Page, Process, Address); MmDeleteRmap(Page, Process, Address);
MmDeleteVirtualMapping(Process, Address, FALSE, NULL, NULL); MmDeleteVirtualMapping(Process, Address, FALSE, NULL, NULL);
MmReleasePageMemoryConsumer(MC_CACHE, Page); MmReleasePageMemoryConsumer(MC_CACHE, Page);
#if (_MI_PAGING_LEVELS == 2)
if (Address < MmSystemRangeStart)
Process->Vm.VmWorkingSetList->UsedPageTableEntries[MiGetPdeOffset(Address)]--;
#endif
} }
if (SwapEntry != 0) if (SwapEntry != 0)
{ {

14
reactos/ntoskrnl/cache/section/fault.c vendored
View file

@ -143,11 +143,10 @@ MmNotPresentFaultCachePage
DPRINT("Set %x in address space @ %x\n", Required->Page[0], Address); DPRINT("Set %x in address space @ %x\n", Required->Page[0], Address);
Status = MmCreateVirtualMapping(Process, Address, Attributes, Required->Page, 1); Status = MmCreateVirtualMapping(Process, Address, Attributes, Required->Page, 1);
#if (_MI_PAGING_LEVELS == 2) #if (_MI_PAGING_LEVELS == 2)
/* Reference Page Directory Entry */ if (Address < MmSystemRangeStart)
if(Address < MmSystemRangeStart)
{ {
MmWorkingSetList->UsedPageTableEntries[MiGetPdeOffset(Address)]++; Process->Vm.VmWorkingSetList->UsedPageTableEntries[MiGetPdeOffset(Address)]++;
ASSERT(MmWorkingSetList->UsedPageTableEntries[MiGetPdeOffset(Address)] <= PTE_COUNT); ASSERT(Process->Vm.VmWorkingSetList->UsedPageTableEntries[MiGetPdeOffset(Address)] <= PTE_COUNT);
} }
#endif #endif
if (NT_SUCCESS(Status)) if (NT_SUCCESS(Status))
@ -175,11 +174,10 @@ MmNotPresentFaultCachePage
Status = MmCreateVirtualMapping(Process, Address, Attributes, &Page, 1); Status = MmCreateVirtualMapping(Process, Address, Attributes, &Page, 1);
#if (_MI_PAGING_LEVELS == 2) #if (_MI_PAGING_LEVELS == 2)
/* Reference Page Directory Entry */ if (Address < MmSystemRangeStart)
if(Address < MmSystemRangeStart)
{ {
MmWorkingSetList->UsedPageTableEntries[MiGetPdeOffset(Address)]++; Process->Vm.VmWorkingSetList->UsedPageTableEntries[MiGetPdeOffset(Address)]++;
ASSERT(MmWorkingSetList->UsedPageTableEntries[MiGetPdeOffset(Address)] <= PTE_COUNT); ASSERT(Process->Vm.VmWorkingSetList->UsedPageTableEntries[MiGetPdeOffset(Address)] <= PTE_COUNT);
} }
#endif #endif
if (NT_SUCCESS(Status)) if (NT_SUCCESS(Status))

12
reactos/ntoskrnl/cache/section/swapout.c vendored
View file

@ -54,6 +54,7 @@
extern KEVENT MmWaitPageEvent; extern KEVENT MmWaitPageEvent;
extern FAST_MUTEX RmapListLock; extern FAST_MUTEX RmapListLock;
extern PMMWSL MmWorkingSetList;
FAST_MUTEX MiGlobalPageOperation; FAST_MUTEX MiGlobalPageOperation;
@ -186,7 +187,6 @@ MmPageOutCacheSection
BOOLEAN Dirty, BOOLEAN Dirty,
PMM_REQUIRED_RESOURCES Required) PMM_REQUIRED_RESOURCES Required)
{ {
NTSTATUS Status = STATUS_SUCCESS;
ULONG Entry; ULONG Entry;
PFN_NUMBER OurPage; PFN_NUMBER OurPage;
PEPROCESS Process = MmGetAddressSpaceOwner(AddressSpace); PEPROCESS Process = MmGetAddressSpaceOwner(AddressSpace);
@ -213,14 +213,16 @@ MmPageOutCacheSection
MmDeleteVirtualMapping(Process, Address, FALSE, NULL, &OurPage); MmDeleteVirtualMapping(Process, Address, FALSE, NULL, &OurPage);
ASSERT(OurPage == Required->Page[0]); ASSERT(OurPage == Required->Page[0]);
if (NT_SUCCESS(Status))
{
MmReleasePageMemoryConsumer(MC_CACHE, Required->Page[0]); MmReleasePageMemoryConsumer(MC_CACHE, Required->Page[0]);
}
#if (_MI_PAGING_LEVELS == 2)
if (Address < MmSystemRangeStart)
Process->Vm.VmWorkingSetList->UsedPageTableEntries[MiGetPdeOffset(Address)]--;
#endif
MmUnlockSectionSegment(Segment); MmUnlockSectionSegment(Segment);
MiSetPageEvent(Process, Address); MiSetPageEvent(Process, Address);
return Status; return STATUS_SUCCESS;
} }
NTSTATUS NTSTATUS