MiLockImageExtentsExclusive

VOID __stdcall MiLockImageExtentsExclusive(){
  _ETHREAD *CurrentThread; 
  CurrentThread = (_ETHREAD *)KeGetCurrentThread();
  --*((_WORD *)CurrentThread + 243);
  ExAcquirePushLockExclusiveEx((UINT64)&qword_140C4C9E8, 0i64);
}

Referenced by:

MiAllocateEntireImageFileExtents
MiDeleteImageExtentList