From bf0136ce216f4f16b309b39e12f47051a7227377 Mon Sep 17 00:00:00 2001
From: Dibyamartanda Samanta <dibyaxp@noreply.codingworkshop.git>
Date: Thu, 20 Jun 2024 19:12:51 +0200
Subject: [PATCH] [NTOSKRNL:CC] Fix Probing and locking of pages,

Set Ideal processor to 1 before probing and locking pages,
then restore it back to original state
---
 NTOSKRNL/CC/ccmdlhandler.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/NTOSKRNL/CC/ccmdlhandler.cpp b/NTOSKRNL/CC/ccmdlhandler.cpp
index 9c72441..c21defb 100644
--- a/NTOSKRNL/CC/ccmdlhandler.cpp
+++ b/NTOSKRNL/CC/ccmdlhandler.cpp
@@ -356,10 +356,10 @@ CcPrepareMdlWrite(IN PFILE_OBJECT FileObject,
             RtlRaiseStatus(STATUS_INSUFFICIENT_RESOURCES );
       
         currentThread = KeGetCurrentThread();
-        SavedState = currentThread->UserIdealProcessor + 2;
+        SavedState = currentThread->UserIdealProcessor ;
         currentThread->UserIdealProcessor = 1;
         MmProbeAndLockPages(Mdl, KernelMode, IoWriteAccess);
-        currentThread->UserIdealProcessor = SavedState - 2;
+        currentThread->UserIdealProcessor = SavedState;
         SavedState
         /* Update the Read Aheas Stats*/
         KeAcquireInStackQueuedSpinLock(&SharedCacheMap->BcbSpinLock, &LockHandle);