Add missing processor architecture cases

[reactos.git] / reactos / ntoskrnl / cc / mdl.c

diff --git a/reactos/ntoskrnl/cc/mdl.c b/reactos/ntoskrnl/cc/mdl.c
index 0618a20..7e91d70 100644 (file)
--- a/reactos/ntoskrnl/cc/mdl.c
+++ b/reactos/ntoskrnl/cc/mdl.c
@@ -1,5 +1,5 @@
-/* $Id:$
- * 
+/* $Id$
+ *
  * COPYRIGHT:       See COPYING in the top level directory
  * PROJECT:         ReactOS kernel
  * FILE:            ntoskrnl/cc/fs.c
@@ -17,11 +17,11 @@
 /* FUNCTIONS *****************************************************************/
 
 /*
- * @unimplemented
+ * @implemented
  */
 VOID
 STDCALL
-CcMdlRead (
+CcMdlRead(
        IN      PFILE_OBJECT            FileObject,
        IN      PLARGE_INTEGER          FileOffset,
        IN      ULONG                   Length,
@@ -32,71 +32,117 @@ CcMdlRead (
        UNIMPLEMENTED;
 }
 
-/**********************************************************************
+/*
  * NAME                                                        INTERNAL
- *     CcMdlReadCompleteDev@8
+ * CcMdlReadCompleteDev@8
  *
  * DESCRIPTION
  *
  * ARGUMENTS
- *     MdlChain
- *     DeviceObject
- *     
+ * MdlChain
+ * DeviceObject
+ *
  * RETURN VALUE
- *     None.
+ *  None.
  *
  * NOTE
  *     Used by CcMdlReadComplete@8 and FsRtl
  *
  */
-VOID STDCALL
-CcMdlReadCompleteDev (IN       PMDL            MdlChain,
-                     IN        PDEVICE_OBJECT  DeviceObject)
+VOID
+STDCALL
+CcMdlReadCompleteDev(IN PMDL MdlChain,
+                     IN PFILE_OBJECT FileObject)
 {
-  UNIMPLEMENTED;
-}
+    PMDL Mdl;
 
+    /* Free MDLs */
+    while ((Mdl = MdlChain))
+    {
+        MdlChain = Mdl->Next;
+        MmUnlockPages(Mdl);
+        IoFreeMdl(Mdl);
+    }
+}
 
-/**********************************************************************
- * NAME                                                        EXPORTED
- *     CcMdlReadComplete@8
+/*
+ * NAME    EXPORTED
+ * CcMdlReadComplete@8
  *
  * DESCRIPTION
  *
  * ARGUMENTS
  *
  * RETURN VALUE
- *     None.
+ * None.
  *
  * NOTE
- *     From Bo Branten's ntifs.h v13.
+ * From Bo Branten's ntifs.h v13.
  *
- * @unimplemented
+ * @implemented
  */
-VOID STDCALL
-CcMdlReadComplete (IN  PFILE_OBJECT    FileObject,
-                  IN   PMDL            MdlChain)
+VOID
+STDCALL
+CcMdlReadComplete(IN PFILE_OBJECT FileObject,
+                  IN PMDL MdlChain)
 {
-   PDEVICE_OBJECT      DeviceObject = NULL;
-   
-   DeviceObject = IoGetRelatedDeviceObject (FileObject);
-   /* FIXME: try fast I/O first */
-   CcMdlReadCompleteDev (MdlChain,
-                        DeviceObject);
+    PDEVICE_OBJECT DeviceObject = NULL;
+    PFAST_IO_DISPATCH FastDispatch;
+
+    /* Get Fast Dispatch Data */
+    DeviceObject = IoGetRelatedDeviceObject(FileObject);
+    FastDispatch = DeviceObject->DriverObject->FastIoDispatch;
+
+    /* Check if we support Fast Calls, and check this one */
+    if (FastDispatch && FastDispatch->MdlReadComplete)
+    {
+         /* Use the fast path */
+        FastDispatch->MdlReadComplete(FileObject,
+                                      MdlChain,
+                                      DeviceObject);
+    }
+
+    /* Use slow path */
+    CcMdlReadCompleteDev(MdlChain, FileObject);
 }
 
 /*
- * @unimplemented
+ * @implemented
  */
 VOID
 STDCALL
-CcMdlWriteComplete (
-       IN      PFILE_OBJECT            FileObject,
-       IN      PLARGE_INTEGER          FileOffset,
-       IN      PMDL                    MdlChain
-       )
+CcMdlWriteComplete(IN PFILE_OBJECT FileObject,
+                   IN PLARGE_INTEGER FileOffset,
+                   IN PMDL MdlChain)
 {
-       UNIMPLEMENTED;
+    PDEVICE_OBJECT DeviceObject = NULL;
+    PFAST_IO_DISPATCH FastDispatch;
+
+    /* Get Fast Dispatch Data */
+    DeviceObject = IoGetRelatedDeviceObject(FileObject);
+    FastDispatch = DeviceObject->DriverObject->FastIoDispatch;
+
+    /* Check if we support Fast Calls, and check this one */
+    if (FastDispatch && FastDispatch->MdlWriteComplete)
+    {
+         /* Use the fast path */
+        FastDispatch->MdlWriteComplete(FileObject,
+                                       FileOffset,
+                                       MdlChain,
+                                       DeviceObject);
+    }
+
+    /* Use slow path */
+    CcMdlWriteCompleteDev(FileOffset, MdlChain, FileObject);
+}
+
+VOID
+STDCALL
+CcMdlWriteCompleteDev(IN PLARGE_INTEGER FileOffset,
+                      IN PMDL MdlChain,
+                      IN PFILE_OBJECT FileObject)
+{
+    UNIMPLEMENTED;
 }
 
 /*