LOCK_TRANSACTION_LIST

VOID __stdcall LOCK_TRANSACTION_LIST(){
  _ETHREAD *CurrentThread; 
  CurrentThread = (_ETHREAD *)KeGetCurrentThread();
  --*((_WORD *)CurrentThread + 242);
  ExAcquireFastMutexUnsafe(&CmpTransactionListLock);
}

Referenced by:

CmpPrepareLightWeightTransaction
CmpRundownUnitOfWork
CmpTransEnlistUowInCmTrans
CmpTransMgrCommit
CmpTransMgrPrepare