[pschweitzer] 65361: [FASTFAT] - Store IO VPB in our VCB for later use - Prepare a spare VPB in our VCB for dismount swapout

Author: pschweitzer
Date: Mon Nov 10 17:42:51 2014
New Revision: 65361

URL: http://svn.reactos.org/svn/reactos?rev=65361&view=rev
Log:
[FASTFAT]
- Store IO VPB in our VCB for later use
- Prepare a spare VPB in our VCB for dismount swapout

Modified:
    trunk/reactos/drivers/filesystems/fastfat/fsctl.c
    trunk/reactos/drivers/filesystems/fastfat/vfat.h

Modified: trunk/reactos/drivers/filesystems/fastfat/fsctl.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/fastfa…
==============================================================================
--- trunk/reactos/drivers/filesystems/fastfat/fsctl.c	[iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/fastfat/fsctl.c	[iso-8859-1] Mon Nov 10 17:42:51
2014
@@ -521,6 +521,14 @@
     /* Initialize this resource early ... it's used in VfatCleanup */
     ExInitializeResourceLite(&DeviceExt->DirResource);
 
+    DeviceExt->IoVPB = DeviceObject->Vpb;
+    DeviceExt->SpareVPB = ExAllocatePoolWithTag(NonPagedPool, sizeof(VPB), TAG_VFAT);
+    if (DeviceExt->SpareVPB == NULL)
+    {
+        Status = STATUS_INSUFFICIENT_RESOURCES;
+        goto ByeBye;
+    }
+
     DeviceExt->FATFileObject = IoCreateStreamFileObject(NULL,
DeviceExt->StorageDevice);
     Fcb = vfatNewFCB(DeviceExt, &NameU);
     if (Fcb == NULL)
@@ -622,6 +630,8 @@
         /* Cleanup */
         if (DeviceExt && DeviceExt->FATFileObject)
             ObDereferenceObject (DeviceExt->FATFileObject);
+        if (DeviceExt && DeviceExt->SpareVPB)
+            ExFreePoolWithTag(DeviceExt->SpareVPB, TAG_VFAT);
         if (Fcb)
             vfatDestroyFCB(Fcb);
         if (Ccb)

Modified: trunk/reactos/drivers/filesystems/fastfat/vfat.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/fastfa…
==============================================================================
--- trunk/reactos/drivers/filesystems/fastfat/vfat.h	[iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/fastfat/vfat.h	[iso-8859-1] Mon Nov 10 17:42:51
2014
@@ -299,6 +299,10 @@
 
     /* Incremented on IRP_MJ_CREATE, decremented on IRP_MJ_CLEANUP */
     ULONG OpenHandleCount;
+
+    /* VPBs for dismount */
+    PVPB IoVPB;
+    PVPB SpareVPB;
 } DEVICE_EXTENSION, VCB, *PVCB;
 
 typedef struct