NTSTATUS
VfatFlushVolume(
PDEVICE_EXTENSION DeviceExt,
PVFATFCB VolumeFcb)
{
PLIST_ENTRY ListEntry;
PVFATFCB Fcb;
NTSTATUS Status, ReturnStatus = STATUS_SUCCESS;
PIRP Irp;
KEVENT Event;
IO_STATUS_BLOCK IoStatusBlock;
DPRINT("VfatFlushVolume(DeviceExt %p, VolumeFcb %p)\n", DeviceExt, VolumeFcb);
ASSERT(VolumeFcb == DeviceExt->VolumeFcb);
ListEntry = DeviceExt->FcbListHead.Flink;
while (ListEntry != &DeviceExt->FcbListHead)
{
Fcb = CONTAINING_RECORD(ListEntry, VFATFCB, FcbListEntry);
ListEntry = ListEntry->Flink;
if (!vfatFCBIsDirectory(Fcb))
{
ExAcquireResourceExclusiveLite(&Fcb->MainResource, TRUE);
Status = VfatFlushFile(DeviceExt, Fcb);
ExReleaseResourceLite (&Fcb->MainResource);
if (!NT_SUCCESS(Status))
{
DPRINT1("VfatFlushFile failed, status = %x\n", Status);
ReturnStatus = Status;
}
}
/* FIXME: Stop flushing if this is a removable media and the media was removed */
}
ListEntry = DeviceExt->FcbListHead.Flink;
while (ListEntry != &DeviceExt->FcbListHead)
{
Fcb = CONTAINING_RECORD(ListEntry, VFATFCB, FcbListEntry);
ListEntry = ListEntry->Flink;
if (vfatFCBIsDirectory(Fcb))
{
ExAcquireResourceExclusiveLite(&Fcb->MainResource, TRUE);
Status = VfatFlushFile(DeviceExt, Fcb);
ExReleaseResourceLite (&Fcb->MainResource);
if (!NT_SUCCESS(Status))
{
DPRINT1("VfatFlushFile failed, status = %x\n", Status);
ReturnStatus = Status;
}
}
/* FIXME: Stop flushing if this is a removable media and the media was removed */
}
Fcb = (PVFATFCB) DeviceExt->FATFileObject->FsContext;
ExAcquireResourceExclusiveLite(&DeviceExt->FatResource, TRUE);
Status = VfatFlushFile(DeviceExt, Fcb);
ExReleaseResourceLite(&DeviceExt->FatResource);
/* Prepare an IRP to flush device buffers */
Irp = IoBuildSynchronousFsdRequest(IRP_MJ_FLUSH_BUFFERS,
DeviceExt->StorageDevice,
NULL, 0, NULL, &Event,
&IoStatusBlock);
if (Irp != NULL)
{
KeInitializeEvent(&Event, NotificationEvent, FALSE);
Status = IoCallDriver(DeviceExt->StorageDevice, Irp);
if (Status == STATUS_PENDING)
{
KeWaitForSingleObject(&Event, Executive, KernelMode, FALSE, NULL);
Status = IoStatusBlock.Status;
}
/* Ignore device not supporting flush operation */
if (Status == STATUS_INVALID_DEVICE_REQUEST)
{
DPRINT1("Flush not supported, ignored\n");
Status = STATUS_SUCCESS;
}
}
else
{
Status = STATUS_INSUFFICIENT_RESOURCES;
}
if (!NT_SUCCESS(Status))
{
DPRINT1("VfatFlushFile failed, status = %x\n", Status);
ReturnStatus = Status;
}
return ReturnStatus;
}
NTSTATUS
VfatFlushVolume(
PDEVICE_EXTENSION DeviceExt,
PVFATFCB VolumeFcb)
{
PLIST_ENTRY ListEntry;
PVFATFCB Fcb;
NTSTATUS Status, ReturnStatus = STATUS_SUCCESS;
DPRINT("VfatFlushVolume(DeviceExt %p, FatFcb %p)\n", DeviceExt, VolumeFcb);
ListEntry = DeviceExt->FcbListHead.Flink;
while (ListEntry != &DeviceExt->FcbListHead)
{
Fcb = CONTAINING_RECORD(ListEntry, VFATFCB, FcbListEntry);
ListEntry = ListEntry->Flink;
if (!vfatFCBIsDirectory(Fcb))
{
ExAcquireResourceExclusiveLite(&Fcb->MainResource, TRUE);
Status = VfatFlushFile(DeviceExt, Fcb);
ExReleaseResourceLite (&Fcb->MainResource);
if (!NT_SUCCESS(Status))
{
DPRINT1("VfatFlushFile failed, status = %x\n", Status);
ReturnStatus = Status;
}
}
/* FIXME: Stop flushing if this is a removable media and the media was removed */
}
ListEntry = DeviceExt->FcbListHead.Flink;
while (ListEntry != &DeviceExt->FcbListHead)
{
Fcb = CONTAINING_RECORD(ListEntry, VFATFCB, FcbListEntry);
ListEntry = ListEntry->Flink;
if (vfatFCBIsDirectory(Fcb))
{
ExAcquireResourceExclusiveLite(&Fcb->MainResource, TRUE);
Status = VfatFlushFile(DeviceExt, Fcb);
ExReleaseResourceLite (&Fcb->MainResource);
if (!NT_SUCCESS(Status))
{
DPRINT1("VfatFlushFile failed, status = %x\n", Status);
ReturnStatus = Status;
}
}
/* FIXME: Stop flushing if this is a removable media and the media was removed */
}
Fcb = (PVFATFCB) DeviceExt->FATFileObject->FsContext;
ExAcquireResourceExclusiveLite(&DeviceExt->FatResource, TRUE);
Status = VfatFlushFile(DeviceExt, Fcb);
ExReleaseResourceLite(&DeviceExt->FatResource);
/* FIXME: Flush the buffers from storage device */
if (!NT_SUCCESS(Status))
{
DPRINT1("VfatFlushFile failed, status = %x\n", Status);
ReturnStatus = Status;
}
return ReturnStatus;
}
