FsFilterCtrlFree

void __fastcall FsFilterCtrlFree(__int64 a1){
  if( (*(_DWORD *)(a1 + 64) & 1) != 0 )
    FsFilterFreeCompletionStack(a1);
}

Referenced by:

FsRtlAcquireFileExclusiveCommon
FsRtlAcquireFileForCcFlushEx
FsRtlQueryOpen
FsRtlReleaseFile
FsRtlReleaseFileForCcFlush