reactos/drivers/filesystems/ntfs/cleanup.c

127 lines
3.4 KiB
C

/*
* ReactOS kernel
* Copyright (C) 2016 ReactOS Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: drivers/filesystem/ntfs/cleanup.c
* PURPOSE: NTFS filesystem driver
* PROGRAMMER: Pierre Schweitzer (pierre@reactos.org)
* UPDATE HISTORY:
*/
/* INCLUDES *****************************************************************/
#include "ntfs.h"
#define NDEBUG
#include <debug.h>
/* FUNCTIONS ****************************************************************/
/*
* FUNCTION: Cleans up a file
*/
NTSTATUS
NtfsCleanupFile(PDEVICE_EXTENSION DeviceExt,
PFILE_OBJECT FileObject,
BOOLEAN CanWait)
{
PNTFS_FCB Fcb;
DPRINT("NtfsCleanupFile(DeviceExt %p, FileObject %p, CanWait %u)\n",
DeviceExt,
FileObject,
CanWait);
Fcb = (PNTFS_FCB)(FileObject->FsContext);
if (!Fcb)
return STATUS_SUCCESS;
if (Fcb->Flags & FCB_IS_VOLUME)
{
Fcb->OpenHandleCount--;
if (Fcb->OpenHandleCount != 0)
{
// Remove share access when handled
}
}
else
{
if (!ExAcquireResourceExclusiveLite(&Fcb->MainResource, CanWait))
{
return STATUS_PENDING;
}
Fcb->OpenHandleCount--;
CcUninitializeCacheMap(FileObject, &Fcb->RFCB.FileSize, NULL);
if (Fcb->OpenHandleCount != 0)
{
// Remove share access when handled
}
FileObject->Flags |= FO_CLEANUP_COMPLETE;
ExReleaseResourceLite(&Fcb->MainResource);
}
return STATUS_SUCCESS;
}
NTSTATUS
NtfsCleanup(PNTFS_IRP_CONTEXT IrpContext)
{
PDEVICE_EXTENSION DeviceExtension;
PFILE_OBJECT FileObject;
NTSTATUS Status;
PDEVICE_OBJECT DeviceObject;
DPRINT("NtfsCleanup() called\n");
DeviceObject = IrpContext->DeviceObject;
if (DeviceObject == NtfsGlobalData->DeviceObject)
{
DPRINT("Cleaning up file system\n");
IrpContext->Irp->IoStatus.Information = 0;
return STATUS_SUCCESS;
}
FileObject = IrpContext->FileObject;
DeviceExtension = DeviceObject->DeviceExtension;
if (!ExAcquireResourceExclusiveLite(&DeviceExtension->DirResource,
BooleanFlagOn(IrpContext->Flags, IRPCONTEXT_CANWAIT)))
{
return NtfsMarkIrpContextForQueue(IrpContext);
}
Status = NtfsCleanupFile(DeviceExtension, FileObject, BooleanFlagOn(IrpContext->Flags, IRPCONTEXT_CANWAIT));
ExReleaseResourceLite(&DeviceExtension->DirResource);
if (Status == STATUS_PENDING)
{
return NtfsMarkIrpContextForQueue(IrpContext);
}
IrpContext->Irp->IoStatus.Information = 0;
return Status;
}