From 6b9215e607b5a52ec286c5bcc66bb19b1fd081d3 Mon Sep 17 00:00:00 2001
From: ReactOS Portable Systems Group <ros-arm-bringup@svn.reactos.org>
Date: Thu, 14 Feb 2008 22:34:50 +0000
Subject: [PATCH] The system never considered "ReservedPages" as any different
 from "SystemPages", other than to spend the accounting time to mark these
 pages differently. Removed the notion of a reserved pages and count them as
 system pages instead.

svn path=/trunk/; revision=32367
---
 reactos/ntoskrnl/include/internal/mm.h |  1 -
 reactos/ntoskrnl/mm/freelist.c         | 20 ++++++++++----------
 2 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/reactos/ntoskrnl/include/internal/mm.h b/reactos/ntoskrnl/include/internal/mm.h
index b0ba0ba8c20..ce4da08a592 100644
--- a/reactos/ntoskrnl/include/internal/mm.h
+++ b/reactos/ntoskrnl/include/internal/mm.h
@@ -252,7 +252,6 @@ typedef struct
 {
     ULONG NrTotalPages;
     ULONG NrSystemPages;
-    ULONG NrReservedPages;
     ULONG NrUserPages;
     ULONG NrFreePages;
     ULONG NrDirtyPages;
diff --git a/reactos/ntoskrnl/mm/freelist.c b/reactos/ntoskrnl/mm/freelist.c
index cf41cd767d8..a47efb1f28a 100644
--- a/reactos/ntoskrnl/mm/freelist.c
+++ b/reactos/ntoskrnl/mm/freelist.c
@@ -317,12 +317,12 @@ MmInitializePageList(IN ULONG_PTR FirstPhysKernelAddress,
     ULONG Reserved;
     NTSTATUS Status;
     PFN_TYPE Pfn = 0;
-    ULONG PdeStart = PsGetCurrentProcess()->Pcb.DirectoryTableBase.LowPart;
     PHYSICAL_PAGE UsedPage;
+    extern PMEMORY_ALLOCATION_DESCRIPTOR MiFreeDescriptor;
+    ULONG PdeStart = PsGetCurrentProcess()->Pcb.DirectoryTableBase.LowPart;
     ULONG PdePageStart, PdePageEnd;
     ULONG VideoPageStart, VideoPageEnd;
     ULONG KernelPageStart, KernelPageEnd;
-    extern PMEMORY_ALLOCATION_DESCRIPTOR MiFreeDescriptor;
 
     /* Initialize the page lists */
     KeInitializeSpinLock(&PageListLock);
@@ -398,25 +398,25 @@ MmInitializePageList(IN ULONG_PTR FirstPhysKernelAddress,
             {
                 /* Page 0 is reserved for the IVT */
                 MmPageArray[i] = UsedPage;
-                MmStats.NrReservedPages++;
+                MmStats.NrSystemPages++;
             }
             else if (i == 1)
             {
                 /* Page 1 is reserved for the PCR */
                 MmPageArray[i] = UsedPage;
-                MmStats.NrReservedPages++;
+                MmStats.NrSystemPages++;
             }
             else if (i == 2)
             {
                 /* Page 2 is reserved for the KUSER_SHARED_DATA */
                 MmPageArray[i] = UsedPage;
-                MmStats.NrReservedPages++;
+                MmStats.NrSystemPages++;
             }
             else if ((i >= PdePageStart) && (i < PdePageEnd))
             {
                 /* These pages contain the initial FreeLDR PDEs */
                 MmPageArray[i] = UsedPage;
-                MmStats.NrReservedPages++;
+                MmStats.NrSystemPages++;
             }
             else if ((i >= VideoPageStart) && (i < VideoPageEnd))
             {
@@ -428,7 +428,7 @@ MmInitializePageList(IN ULONG_PTR FirstPhysKernelAddress,
                  */
                 MmPageArray[i].Flags.Type = MM_PHYSICAL_PAGE_BIOS;
                 MmPageArray[i].Flags.Consumer = MC_NPPOOL;
-                MmStats.NrReservedPages++;
+                MmStats.NrSystemPages++;
             }
             else if ((i >= KernelPageStart) && (i < KernelPageEnd))
             {
@@ -462,14 +462,14 @@ MmInitializePageList(IN ULONG_PTR FirstPhysKernelAddress,
             /* These are pages reserved by the BIOS/ROMs */
             MmPageArray[i].Flags.Type = MM_PHYSICAL_PAGE_BIOS;
             MmPageArray[i].Flags.Consumer = MC_NPPOOL;
-            MmStats.NrReservedPages++;
+            MmStats.NrSystemPages++;
         }
     }
     
     KeInitializeEvent(&ZeroPageThreadEvent, NotificationEvent, TRUE);
     
-    MmStats.NrTotalPages = MmStats.NrFreePages + MmStats.NrSystemPages + MmStats.NrReservedPages + MmStats.NrUserPages;
-    MmInitializeBalancer(MmStats.NrFreePages, MmStats.NrSystemPages + MmStats.NrReservedPages);
+    MmStats.NrTotalPages = MmStats.NrFreePages + MmStats.NrSystemPages + MmStats.NrUserPages;
+    MmInitializeBalancer(MmStats.NrFreePages, MmStats.NrSystemPages);
     return((PVOID)LastKernelAddress);
 }