From 5776256730e2e362b79cbf710ae003f371f16fee Mon Sep 17 00:00:00 2001
From: Aleksey Bragin <aleksey@reactos.org>
Date: Sat, 8 Mar 2008 10:35:32 +0000
Subject: [PATCH] - Pass cache manager callbacks structure at every
 CcInitializeCacheMap() call, it's mandatory.

svn path=/trunk/; revision=32607
---
 reactos/drivers/filesystems/cdfs/cdfs.c  | 34 +++++++++++++++++++++++-
 reactos/drivers/filesystems/cdfs/cdfs.h  | 11 ++++++--
 reactos/drivers/filesystems/cdfs/fcb.c   |  8 +++---
 reactos/drivers/filesystems/cdfs/fsctl.c |  4 +--
 reactos/drivers/filesystems/cdfs/rw.c    |  4 +--
 5 files changed, 50 insertions(+), 11 deletions(-)

diff --git a/reactos/drivers/filesystems/cdfs/cdfs.c b/reactos/drivers/filesystems/cdfs/cdfs.c
index d7b44ccead0..a0c98ba2e27 100644
--- a/reactos/drivers/filesystems/cdfs/cdfs.c
+++ b/reactos/drivers/filesystems/cdfs/cdfs.c
@@ -33,7 +33,7 @@
 #define NDEBUG
 #include <debug.h>
 
-/* FUNCTIONS ****************************************************************/
+/* GLOBALS ******************************************************************/
 
 PCDFS_GLOBAL_DATA CdfsGlobalData;
 
@@ -98,9 +98,41 @@ DriverEntry(PDRIVER_OBJECT DriverObject,
 
   DriverObject->DriverUnload = NULL;
 
+   /* Cache manager */
+  CdfsGlobalData->CacheMgrCallbacks.AcquireForLazyWrite = CdfsAcquireForLazyWrite;
+  CdfsGlobalData->CacheMgrCallbacks.ReleaseFromLazyWrite = CdfsReleaseFromLazyWrite;
+  CdfsGlobalData->CacheMgrCallbacks.AcquireForReadAhead = CdfsAcquireForLazyWrite;
+  CdfsGlobalData->CacheMgrCallbacks.ReleaseFromReadAhead = CdfsReleaseFromLazyWrite;
+
   IoRegisterFileSystem(DeviceObject);
   DeviceObject->Flags &= ~DO_DEVICE_INITIALIZING;
 
   return(STATUS_SUCCESS);
 }
 
+
+BOOLEAN NTAPI
+CdfsAcquireForLazyWrite(IN PVOID Context,
+                        IN BOOLEAN Wait)
+{
+	PFCB Fcb = (PFCB)Context;
+	ASSERT(Fcb);
+	DPRINT("CdfsAcquireForLazyWrite(): Fcb %p\n", Fcb);
+
+	if (!ExAcquireResourceExclusiveLite(&(Fcb->MainResource), Wait))
+	{
+		DPRINT("CdfsAcquireForLazyWrite(): ExReleaseResourceLite failed.\n");
+		return FALSE;
+	}
+	return TRUE;
+}
+
+VOID NTAPI
+CdfsReleaseFromLazyWrite(IN PVOID Context)
+{
+	PFCB Fcb = (PFCB)Context;
+	ASSERT(Fcb);
+	DPRINT("CdfsReleaseFromLazyWrite(): Fcb %p\n", Fcb);
+
+	ExReleaseResourceLite(&(Fcb->MainResource));
+}
diff --git a/reactos/drivers/filesystems/cdfs/cdfs.h b/reactos/drivers/filesystems/cdfs/cdfs.h
index 84bd40f2b13..a2a3e460da4 100644
--- a/reactos/drivers/filesystems/cdfs/cdfs.h
+++ b/reactos/drivers/filesystems/cdfs/cdfs.h
@@ -178,6 +178,7 @@ typedef struct _FCB
 {
   FSRTL_COMMON_FCB_HEADER RFCB;
   SECTION_OBJECT_POINTERS SectionObjectPointers;
+  ERESOURCE MainResource;
   ERESOURCE PagingIoResource;
 
   PFILE_OBJECT FileObject;
@@ -189,8 +190,6 @@ typedef struct _FCB
   WCHAR PathName[MAX_PATH];	/* path+filename 260 max */
   WCHAR ShortNameBuffer[13];
 
-  ERESOURCE MainResource;
-
   LIST_ENTRY FcbListEntry;
   struct _FCB* ParentFcb;
 
@@ -233,6 +232,7 @@ typedef struct
   PDRIVER_OBJECT DriverObject;
   PDEVICE_OBJECT DeviceObject;
   ULONG Flags;
+  CACHE_MANAGER_CALLBACKS CacheMgrCallbacks;
 } CDFS_GLOBAL_DATA, *PCDFS_GLOBAL_DATA;
 
 extern PCDFS_GLOBAL_DATA CdfsGlobalData;
@@ -418,4 +418,11 @@ NTSTATUS STDCALL
 DriverEntry(PDRIVER_OBJECT DriverObject,
 	    PUNICODE_STRING RegistryPath);
 
+BOOLEAN NTAPI
+CdfsAcquireForLazyWrite(IN PVOID Context,
+                        IN BOOLEAN Wait);
+
+VOID NTAPI
+CdfsReleaseFromLazyWrite(IN PVOID Context);
+
 #endif //CDFS_H
diff --git a/reactos/drivers/filesystems/cdfs/fcb.c b/reactos/drivers/filesystems/cdfs/fcb.c
index 5436c0dfe59..dbaa5c6ce58 100644
--- a/reactos/drivers/filesystems/cdfs/fcb.c
+++ b/reactos/drivers/filesystems/cdfs/fcb.c
@@ -245,8 +245,8 @@ CdfsFCBInitializeCache(PVCB Vcb,
   CcInitializeCacheMap(FileObject,
                        (PCC_FILE_SIZES)(&Fcb->RFCB.AllocationSize),
                        FALSE,
-                       NULL,
-                       NULL);
+                       &(CdfsGlobalData->CacheMgrCallbacks),
+                       Fcb);
 
   ObDereferenceObject(FileObject);
   Fcb->Flags |= FCB_CACHE_INITIALIZED;
@@ -430,8 +430,8 @@ CdfsAttachFCBToFileObject(PDEVICE_EXTENSION Vcb,
   CcInitializeCacheMap(FileObject,
                        (PCC_FILE_SIZES)(&Fcb->RFCB.AllocationSize),
                        FALSE,
-                       NULL,
-                       NULL);
+                       &(CdfsGlobalData->CacheMgrCallbacks),
+                       Fcb);
       Fcb->Flags |= FCB_CACHE_INITIALIZED;
     }
 
diff --git a/reactos/drivers/filesystems/cdfs/fsctl.c b/reactos/drivers/filesystems/cdfs/fsctl.c
index edc404d7cf5..63f9209466b 100644
--- a/reactos/drivers/filesystems/cdfs/fsctl.c
+++ b/reactos/drivers/filesystems/cdfs/fsctl.c
@@ -402,8 +402,8 @@ CdfsMountVolume(PDEVICE_OBJECT DeviceObject,
   CcInitializeCacheMap(DeviceExt->StreamFileObject,
                        (PCC_FILE_SIZES)(&Fcb->RFCB.AllocationSize),
 		       TRUE,
-		       NULL,
-		       NULL);
+		       &(CdfsGlobalData->CacheMgrCallbacks),
+		       Fcb);
 
   ExInitializeResourceLite(&DeviceExt->VcbResource);
   ExInitializeResourceLite(&DeviceExt->DirResource);
diff --git a/reactos/drivers/filesystems/cdfs/rw.c b/reactos/drivers/filesystems/cdfs/rw.c
index c71f84eecd8..86dc3e2a256 100644
--- a/reactos/drivers/filesystems/cdfs/rw.c
+++ b/reactos/drivers/filesystems/cdfs/rw.c
@@ -85,8 +85,8 @@ CdfsReadFile(PDEVICE_EXTENSION DeviceExt,
           CcInitializeCacheMap(FileObject,
                                (PCC_FILE_SIZES)(&Fcb->RFCB.AllocationSize),
 		               FALSE,
-		               NULL,
-		               NULL);
+		               &(CdfsGlobalData->CacheMgrCallbacks),
+		               Fcb);
 	}
 
       FileOffset.QuadPart = (LONGLONG)ReadOffset;