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[NTOSKRNL::CC]Implement CcRescheduleLazyWriteScan CcSetLazyWriteScanQueued

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These two function Rescheduling and Scheduling Lazy write scan
This commit is contained in:
Dibyamartanda Samanta 2024-08-17 15:08:39 +02:00 committed by CodingWorkshop Signing Team
parent 104a0212e0
commit 1c173364a1
Signed by: CodingWorkshop Signing Team
GPG Key ID: 6DC88369C82795D2
1 changed files with 62 additions and 1 deletions
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63
NTOSKRNL/CC/cclazywriter.cpp
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@ -13,8 +13,42 @@
extern "C"
VOID
NTAPI
CcSetLazyWriteScanQueued(
IN ULONG FlushReason,
IN BOOLEAN QueuedState)
{
switch (FlushReason)
{
case 1:
LazyWriter.PendingLowMemoryScan = QueuedState;
break;
case 2:
LazyWriter.PendingPowerScan = QueuedState;
break;
case 4:
LazyWriter.PendingPeriodicScan = QueuedState;
break;
case 8:
LazyWriter.PendingTeardownScan = QueuedState;
break;
case 16:
LazyWriter.PendingCoalescingFlushScan = QueuedState;
break;
default:
break;
}
}
BOOLEAN
FASTCALL
VECTORCALL
CcIsLazyWriteScanQueued(
_In_ ULONG ReasonForFlush
)
@ -150,6 +184,33 @@ CcQueueLazyWriteScanThread(
}
}
VOID
NTAPI
CcRescheduleLazyWriteScan( IN PLARGE_INTEGER NextScanDelay)
{
UNREFERENCED_PARAMETER(NextScanDelay);
LARGE_INTEGER Delay = {0};
if (LazyWriter.ScanActive)
{
if (NextScanDelay && NextScanDelay->QuadPart != 0x7FFFFFFFFFFFFFFF && NextScanDelay->QuadPart != 0)
{
Delay.QuadPart = NextScanDelay->QuadPart * KeMaximumIncrement;
if (Delay.QuadPart > 160000000)
Delay.QuadPart = 160000000;
if(Delay.QuadPart < 10000000 )
Delay = CcIdleDelay;
}
KeSetCoalescableTimer(&LazyWriter.ScanTimer,CcIdleDelay,0,1000,&LazyWriter.ScanDpc);
}
else
{
CcScheduleLazyWriteScan(0, 0);
}
}
VOID
NTAPI
CcComputeNextScanTime(PLARGE_INTEGER OldestTICKTIMEForMetadata, PLARGE_INTEGER NextScanDelay)