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36 // File: AFSFlushBuffers.cpp
39 #include "AFSCommon.h"
42 AFSFlushBuffers( IN PDEVICE_OBJECT LibDeviceObject,
46 NTSTATUS ntStatus = STATUS_SUCCESS;
47 IO_STACK_LOCATION *pIrpSp = IoGetCurrentIrpStackLocation( Irp);
48 PFILE_OBJECT pFileObject = pIrpSp->FileObject;
49 AFSFcb *pFcb = (AFSFcb *)pFileObject->FsContext;
50 AFSCcb *pCcb = (AFSCcb *)pFileObject->FsContext2;
51 IO_STATUS_BLOCK iosb = {0};
53 pIrpSp = IoGetCurrentIrpStackLocation( Irp);
61 AFSDbgLogMsg( AFS_SUBSYSTEM_FILE_PROCESSING,
62 AFS_TRACE_LEVEL_ERROR,
63 "AFSFlushBuffers Attempted access (%08lX) when pFcb == NULL\n",
66 try_return( ntStatus = STATUS_INVALID_DEVICE_REQUEST);
69 if( pFcb->Header.NodeTypeCode == AFS_ROOT_FCB ||
70 pFcb->Header.NodeTypeCode == AFS_ROOT_ALL )
74 // Once we support ADS's on directories we need to perform a flush ehre
77 try_return( ntStatus = STATUS_SUCCESS);
80 else if (pFcb->Header.NodeTypeCode != AFS_FILE_FCB)
83 // Nothing to flush Everything but files are write through
85 try_return( ntStatus = STATUS_INVALID_PARAMETER);
88 // The flush consists of two parts. We firstly flush our
89 // cache (if we have one), then we tell the service to write
90 // to the remote server
95 CcFlushCache( &pFcb->NPFcb->SectionObjectPointers, NULL, 0, &iosb);
97 if (!NT_SUCCESS( iosb.Status ))
100 AFSDbgLogMsg( AFS_SUBSYSTEM_IO_PROCESSING,
101 AFS_TRACE_LEVEL_ERROR,
102 "AFSFlushBuffers CcFlushCache [1] failure FID %08lX-%08lX-%08lX-%08lX Status 0x%08lX Bytes 0x%08lX\n",
103 pFcb->ObjectInformation->FileId.Cell,
104 pFcb->ObjectInformation->FileId.Volume,
105 pFcb->ObjectInformation->FileId.Vnode,
106 pFcb->ObjectInformation->FileId.Unique,
110 try_return( ntStatus = iosb.Status );
113 __except( EXCEPTION_EXECUTE_HANDLER)
116 try_return( ntStatus = GetExceptionCode());
119 // Now, flush to the server - if there is stuff to do
122 ntStatus = AFSFlushExtents( pFcb,
125 if( !NT_SUCCESS( ntStatus))
128 AFSReleaseExtentsWithFlush( pFcb,
132 ntStatus = STATUS_SUCCESS;
137 AFSCompleteRequest( Irp, ntStatus);