Function Ext2DiskShutDown

Ext4Fsd/block.c:723–759

NTSTATUS
Ext2DiskShutDown(PEXT2_VCB Vcb)
{
    PIRP                Irp;
    KEVENT              Event;

    NTSTATUS            Status;
    IO_STATUS_BLOCK     IoStatus;

    KeInitializeEvent(&Event, NotificationEvent, FALSE);

    Irp = IoBuildSynchronousFsdRequest(IRP_MJ_SHUTDOWN,
                                       Vcb->TargetDeviceObject,
                                       NULL,
                                       0,
                                       NULL,
                                       &Event,
                                       &IoStatus);

    if (Irp) {
        Status = IoCallDriver(Vcb->TargetDeviceObject, Irp);

        if (Status == STATUS_PENDING) {
            KeWaitForSingleObject(&Event,
                                  Executive,
                                  KernelMode,
                                  FALSE,
                                  NULL);

            Status = IoStatus.Status;
        }
    } else  {
        Status = IoStatus.Status;
    }

    return Status;
}