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95 lines
1.8 KiB
95 lines
1.8 KiB
/*++
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Copyright (c) 1989 Microsoft Corporation
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Module Name:
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Close.c
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Abstract:
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This module implements the File Close routine for Raw called by the
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dispatch driver.
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Author:
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David Goebel [DavidGoe] 18-Mar-91
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Revision History:
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--*/
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#include "RawProcs.h"
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text(PAGE, RawClose)
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#endif
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NTSTATUS
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RawClose (
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IN PVCB Vcb,
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IN PIRP Irp,
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IN PIO_STACK_LOCATION IrpSp
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)
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/*++
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Routine Description:
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This is the routine for closing a volume.
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Arguments:
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Vcb - Supplies the volume being queried.
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Irp - Supplies the Irp being processed.
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IrpSp - Supplies parameters describing the read
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Return Value:
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NTSTATUS - The return status for the operation
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--*/
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{
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NTSTATUS Status;
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BOOLEAN DeleteVolume = FALSE;
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PAGED_CODE();
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//
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// This is a close operation. If it is the last one, dismount.
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//
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//
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// Skip stream files as they are unopened fileobjects.
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// This might be a close from IopInvalidateVolumesForDevice
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//
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if (IrpSp->FileObject->Flags & FO_STREAM_FILE) {
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RawCompleteRequest( Irp, STATUS_SUCCESS );
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return STATUS_SUCCESS;
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}
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Status = KeWaitForSingleObject( &Vcb->Mutex,
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Executive,
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KernelMode,
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FALSE,
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(PLARGE_INTEGER) NULL );
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ASSERT( NT_SUCCESS( Status ) );
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Vcb->OpenCount -= 1;
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if (Vcb->OpenCount == 0) {
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DeleteVolume = RawCheckForDismount( Vcb, FALSE );
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}
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if (!DeleteVolume) {
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(VOID)KeReleaseMutex( &Vcb->Mutex, FALSE );
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}
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RawCompleteRequest( Irp, STATUS_SUCCESS );
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return STATUS_SUCCESS;
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}
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