include/csrss/csrss.h: Include a define for the size of the common

[reactos.git] / reactos / ntoskrnl / mm / kmap.c

diff --git a/reactos/ntoskrnl/mm/kmap.c b/reactos/ntoskrnl/mm/kmap.c
index f064281..7431e23 100644 (file)
--- a/reactos/ntoskrnl/mm/kmap.c
+++ b/reactos/ntoskrnl/mm/kmap.c
@@ -1,4 +1,4 @@
-/* $Id: kmap.c,v 1.10 2001/05/05 19:13:10 chorns Exp $
+/* $Id: kmap.c,v 1.11 2001/11/25 15:21:11 dwelch Exp $
  *
  * COPYRIGHT:    See COPYING in the top level directory
  * PROJECT:      ReactOS kernel
@@ -92,7 +92,7 @@ MiCopyFromUserPage(ULONG DestPhysPage, PVOID SourceAddress)
   return(STATUS_SUCCESS);
 }
 
-PVOID 
+PVOID
 ExAllocatePageWithPhysPage(ULONG PhysPage)
 {
    KIRQL oldlvl;
@@ -101,25 +101,25 @@ ExAllocatePageWithPhysPage(ULONG PhysPage)
    NTSTATUS Status;
 
    KeAcquireSpinLock(&AllocMapLock, &oldlvl);
-   for (i=1; i<ALLOC_MAP_SIZE;i++)
+   for (i = 1; i < ALLOC_MAP_SIZE; i++)
      {
-       if (!test_bit(i%32,&AllocMap[i/32]))
-         {
-            DPRINT("i %x\n",i);
-            set_bit(i%32,&AllocMap[i/32]);
-            addr = (ULONG)(NonPagedPoolBase + (i*PAGESIZE));
-            Status = MmCreateVirtualMapping(NULL, 
-                                            (PVOID)addr, 
-                                            PAGE_READWRITE | PAGE_SYSTEM, 
-                                            PhysPage);
-            if (!NT_SUCCESS(Status))
-              {
-                 DbgPrint("Unable to create virtual mapping\n");
-                 KeBugCheck(0);
-              }
-            KeReleaseSpinLock(&AllocMapLock, oldlvl);
-            return((PVOID)addr);
-         }
+       if (!test_bit(i % 32, &AllocMap[i / 32]))
+        {
+           DPRINT("i %x\n",i);
+           set_bit(i % 32, &AllocMap[i / 32]);
+           addr = (ULONG)(NonPagedPoolBase + (i*PAGESIZE));
+           Status = MmCreateVirtualMapping(NULL, 
+                                           (PVOID)addr, 
+                                           PAGE_READWRITE | PAGE_SYSTEM, 
+                                           PhysPage);
+           if (!NT_SUCCESS(Status))
+             {
+               DbgPrint("Unable to create virtual mapping\n");
+               KeBugCheck(0);
+             }
+           KeReleaseSpinLock(&AllocMapLock, oldlvl);
+           return((PVOID)addr);
+        }
      }
    KeReleaseSpinLock(&AllocMapLock, oldlvl);
    return(NULL);
@@ -132,6 +132,23 @@ MmInitKernelMap(PVOID BaseAddress)
    KeInitializeSpinLock(&AllocMapLock);
 }
 
+VOID
+MiFreeNonPagedPoolRegion(PVOID Addr, ULONG Count, BOOLEAN Free)
+{
+  ULONG i;
+  ULONG Base = (Addr - NonPagedPoolBase) / PAGESIZE;
+
+  for (i = 0; i < Count; i++)
+    {
+      clear_bit((Base + i) % 32, &AllocMap[(Base + i) / 32]);
+      MmDeleteVirtualMapping(NULL, 
+                            Addr + (i * PAGESIZE), 
+                            Free, 
+                            NULL, 
+                            NULL);
+    }
+}
+
 PVOID
 MiAllocNonPagedPoolRegion(ULONG nr_pages)
 /*
@@ -161,7 +178,7 @@ MiAllocNonPagedPoolRegion(ULONG nr_pages)
                    {
                       set_bit(j%32,&AllocMap[j/32]);
                    }
-      DPRINT("returning %x\n",((start*PAGESIZE)+NonPagedPoolBase));
+                 DPRINT("returning %x\n",((start*PAGESIZE)+NonPagedPoolBase));
                  return(((start*PAGESIZE)+NonPagedPoolBase));
               }
          }