From e7ad148a6c4918d126bbda90e051d22c1eb623c2 Mon Sep 17 00:00:00 2001
From: Pierre Schweitzer <pierre@reactos.org>
Date: Fri, 1 May 2015 18:38:10 +0000
Subject: [PATCH] [NTFS] Add FastIO non-support in NTFS

svn path=/trunk/; revision=67501
---
 reactos/drivers/filesystems/ntfs/fastio.c | 70 +++++++++++++++++++++++
 reactos/drivers/filesystems/ntfs/ntfs.c   |  6 ++
 reactos/drivers/filesystems/ntfs/ntfs.h   |  5 ++
 3 files changed, 81 insertions(+)

diff --git a/reactos/drivers/filesystems/ntfs/fastio.c b/reactos/drivers/filesystems/ntfs/fastio.c
index fc778336296..b936c8b7d35 100644
--- a/reactos/drivers/filesystems/ntfs/fastio.c
+++ b/reactos/drivers/filesystems/ntfs/fastio.c
@@ -75,4 +75,74 @@ NtfsRelReadAhead(PVOID Context)
     UNIMPLEMENTED;
 }
 
+BOOLEAN
+NTAPI
+NtfsFastIoCheckIfPossible(
+    _In_ PFILE_OBJECT FileObject,
+    _In_ PLARGE_INTEGER FileOffset,
+    _In_ ULONG Length,
+    _In_ BOOLEAN Wait,
+    _In_ ULONG LockKey,
+    _In_ BOOLEAN CheckForReadOperation,
+    _Out_ PIO_STATUS_BLOCK IoStatus,
+    _In_ PDEVICE_OBJECT DeviceObject)
+{
+    /* Deny FastIo */
+    UNREFERENCED_PARAMETER(FileObject);
+    UNREFERENCED_PARAMETER(FileOffset);
+    UNREFERENCED_PARAMETER(Length);
+    UNREFERENCED_PARAMETER(Wait);
+    UNREFERENCED_PARAMETER(LockKey);
+    UNREFERENCED_PARAMETER(CheckForReadOperation);
+    UNREFERENCED_PARAMETER(IoStatus);
+    UNREFERENCED_PARAMETER(DeviceObject);
+    return FALSE;
+}
+
+BOOLEAN
+NTAPI
+NtfsFastIoRead(
+    _In_ PFILE_OBJECT FileObject,
+    _In_ PLARGE_INTEGER FileOffset,
+    _In_ ULONG Length,
+    _In_ BOOLEAN Wait,
+    _In_ ULONG LockKey,
+    _Out_ PVOID Buffer,
+    _Out_ PIO_STATUS_BLOCK IoStatus,
+    _In_ PDEVICE_OBJECT DeviceObject)
+{
+    DBG_UNREFERENCED_PARAMETER(FileObject);
+    DBG_UNREFERENCED_PARAMETER(FileOffset);
+    DBG_UNREFERENCED_PARAMETER(Length);
+    DBG_UNREFERENCED_PARAMETER(Wait);
+    DBG_UNREFERENCED_PARAMETER(LockKey);
+    DBG_UNREFERENCED_PARAMETER(Buffer);
+    DBG_UNREFERENCED_PARAMETER(IoStatus);
+    DBG_UNREFERENCED_PARAMETER(DeviceObject);
+    return FALSE;
+}
+
+BOOLEAN
+NTAPI
+NtfsFastIoWrite(
+    _In_ PFILE_OBJECT FileObject,
+    _In_ PLARGE_INTEGER FileOffset,
+    _In_ ULONG Length,
+    _In_ BOOLEAN Wait,
+    _In_ ULONG LockKey,
+    _In_ PVOID Buffer,
+    _Out_ PIO_STATUS_BLOCK IoStatus,
+    _In_ PDEVICE_OBJECT DeviceObject)
+{
+    DBG_UNREFERENCED_PARAMETER(FileObject);
+    DBG_UNREFERENCED_PARAMETER(FileOffset);
+    DBG_UNREFERENCED_PARAMETER(Length);
+    DBG_UNREFERENCED_PARAMETER(Wait);
+    DBG_UNREFERENCED_PARAMETER(LockKey);
+    DBG_UNREFERENCED_PARAMETER(Buffer);
+    DBG_UNREFERENCED_PARAMETER(IoStatus);
+    DBG_UNREFERENCED_PARAMETER(DeviceObject);
+    return FALSE;
+}
+
 /* EOF */
diff --git a/reactos/drivers/filesystems/ntfs/ntfs.c b/reactos/drivers/filesystems/ntfs/ntfs.c
index 090ee68c22f..324b5b91439 100644
--- a/reactos/drivers/filesystems/ntfs/ntfs.c
+++ b/reactos/drivers/filesystems/ntfs/ntfs.c
@@ -80,6 +80,12 @@ DriverEntry(PDRIVER_OBJECT DriverObject,
     NtfsGlobalData->CacheMgrCallbacks.AcquireForReadAhead = NtfsAcqReadAhead; 
     NtfsGlobalData->CacheMgrCallbacks.ReleaseFromReadAhead = NtfsRelReadAhead; 
 
+    NtfsGlobalData->FastIoDispatch.SizeOfFastIoDispatch = sizeof(FAST_IO_DISPATCH);
+    NtfsGlobalData->FastIoDispatch.FastIoCheckIfPossible = NtfsFastIoCheckIfPossible;
+    NtfsGlobalData->FastIoDispatch.FastIoRead = NtfsFastIoRead;
+    NtfsGlobalData->FastIoDispatch.FastIoWrite = NtfsFastIoWrite;
+    DriverObject->FastIoDispatch = &NtfsGlobalData->FastIoDispatch;
+
     /* Driver can't be unloaded */
     DriverObject->DriverUnload = NULL;
 
diff --git a/reactos/drivers/filesystems/ntfs/ntfs.h b/reactos/drivers/filesystems/ntfs/ntfs.h
index 44b8874706e..5efb1e97fef 100644
--- a/reactos/drivers/filesystems/ntfs/ntfs.h
+++ b/reactos/drivers/filesystems/ntfs/ntfs.h
@@ -136,6 +136,7 @@ typedef struct
     PDEVICE_OBJECT DeviceObject;
     CACHE_MANAGER_CALLBACKS CacheMgrCallbacks;
     ULONG Flags;
+    FAST_IO_DISPATCH FastIoDispatch;
 } NTFS_GLOBAL_DATA, *PNTFS_GLOBAL_DATA;
 
 
@@ -566,6 +567,10 @@ NtfsAcqReadAhead(PVOID Context,
 VOID NTAPI
 NtfsRelReadAhead(PVOID Context);
 
+FAST_IO_CHECK_IF_POSSIBLE NtfsFastIoCheckIfPossible;
+FAST_IO_READ NtfsFastIoRead;
+FAST_IO_WRITE NtfsFastIoWrite;
+
 
 /* fcb.c */