reactos/drivers/fs/vfat/cleanup.c

   1 /*
   2  * COPYRIGHT:        See COPYING in the top level directory
   3  * PROJECT:          ReactOS kernel
   4  * FILE:             drivers/fs/vfat/cleanup.c
   5  * PURPOSE:          VFAT Filesystem
   6  * PROGRAMMER:       Jason Filby (jasonfilby@yahoo.com)
   7  *                   Hartmut Birr
   8  */
   9
  10 /* INCLUDES *****************************************************************/
  11
  12 #define NDEBUG
  13 #include "vfat.h"
  14
  15 /* FUNCTIONS ****************************************************************/
  16
  17 static NTSTATUS
  18 VfatCleanupFile(PVFAT_IRP_CONTEXT IrpContext)
  19 /*
  20  * FUNCTION: Cleans up after a file has been closed.
  21  */
  22 {
  23   PVFATFCB pFcb;
  24   PFILE_OBJECT FileObject = IrpContext->FileObject;
  25
  26   DPRINT("VfatCleanupFile(DeviceExt %x, FileObject %x)\n",
  27          IrpContext->DeviceExt, FileObject);
  28
  29   /* FIXME: handle file/directory deletion here */
  30   pFcb = (PVFATFCB) FileObject->FsContext;
  31   if (pFcb)
  32     {
  33       if (!(*pFcb->Attributes & FILE_ATTRIBUTE_DIRECTORY) &&
  34           FsRtlAreThereCurrentFileLocks(&pFcb->FileLock))
  35        {
  36          /* remove all locks this process have on this file */
  37          FsRtlFastUnlockAll(&pFcb->FileLock,
  38                             FileObject,
  39                             IoGetRequestorProcess(IrpContext->Irp),
  40                             NULL);
  41        }
  42
  43      if (pFcb->Flags & FCB_IS_DIRTY)
  44        {
  45          VfatUpdateEntry (pFcb);
  46        }
  47
  48      if (pFcb->Flags & FCB_DELETE_PENDING &&
  49          pFcb->OpenHandleCount == 1)
  50        {
  51          PFILE_OBJECT tmpFileObject;
  52          tmpFileObject = pFcb->FileObject;
  53          if (tmpFileObject != NULL)
  54            {
  55              pFcb->FileObject = NULL;
  56 #ifdef USE_ROS_CC_AND_FS
  57              CcRosReleaseFileCache(tmpFileObject);
  58 #else
  59              CcUninitializeCacheMap(tmpFileObject, NULL, NULL);
  60 #endif
  61              ObDereferenceObject(tmpFileObject);
  62            }
  63
  64 #if 0
  65          /* FIXME:
  66           *  CcPurgeCacheSection is unimplemented.
  67           */
  68          CcPurgeCacheSection(FileObject->SectionObjectPointer, NULL, 0, FALSE);
  69 #endif
  70        }
  71      /* Uninitialize file cache if. */
  72 #ifdef USE_ROS_CC_AND_FS
  73      CcRosReleaseFileCache (FileObject);
  74 #else
  75      CcUninitializeCacheMap (FileObject, NULL, NULL);
  76 #endif
  77      pFcb->OpenHandleCount--;
  78      if (!(*pFcb->Attributes & FILE_ATTRIBUTE_DIRECTORY))
  79        {
  80          IoRemoveShareAccess(FileObject, &pFcb->FCBShareAccess);
  81        }
  82     }
  83   return STATUS_SUCCESS;
  84 }
  85
  86 NTSTATUS VfatCleanup (PVFAT_IRP_CONTEXT IrpContext)
  87 /*
  88  * FUNCTION: Cleans up after a file has been closed.
  89  */
  90 {
  91    NTSTATUS Status;
  92
  93    DPRINT("VfatCleanup(DeviceObject %x, Irp %x)\n", IrpContext->DeviceObject, IrpContext->Irp);
  94
  95    if (IrpContext->DeviceObject == VfatGlobalData->DeviceObject)
  96      {
  97        Status = STATUS_SUCCESS;
  98        goto ByeBye;
  99      }
 100
 101    if (!ExAcquireResourceExclusiveLite (&IrpContext->DeviceExt->DirResource,
 102                                         (BOOLEAN)(IrpContext->Flags & IRPCONTEXT_CANWAIT)))
 103      {
 104        return VfatQueueRequest (IrpContext);
 105      }
 106
 107    Status = VfatCleanupFile(IrpContext);
 108
 109    ExReleaseResourceLite (&IrpContext->DeviceExt->DirResource);
 110
 111 ByeBye:
 112    IrpContext->Irp->IoStatus.Status = Status;
 113    IrpContext->Irp->IoStatus.Information = 0;
 114
 115    IoCompleteRequest (IrpContext->Irp, IO_NO_INCREMENT);
 116    VfatFreeIrpContext(IrpContext);
 117    return (Status);
 118 }
 119
 120 /* EOF */