RtlpHpAcquireReleaseLockExclusive

NTSTATUS __stdcall RtlpHpAcquireReleaseLockExclusive(ULONG_PTR BugCheckParameter2){
  UINT64 v1; 
  unsigned __int64 v2; 
  _ETHREAD *CurrentThread; 
  char v4; 
  _ETHREAD *v5; 
  unsigned int SessionId; 
  unsigned __int8 v7; 
  int v8; 
  bool v9; 
  __int64 v10; 
  _KLOCK_ENTRY *v11; 
  int v12; 
  unsigned int v13; 
  __int64 v14; 
  NTSTATUS result; 
  unsigned __int64 v16; 
  UINT64 a3; 

  v2 = *(_QWORD *)&BugCheckParameter2;
  if( (_DWORD)v1 )
  {
    v16 = (unsigned __int8)ExAcquireSpinLockExclusive(*(INT64 **)&BugCheckParameter2);
    ExReleaseSpinLockExclusiveFromDpcLevel((INT64 *)v2);
    result = KiIrqlFlags;
    __writecr8(v16);
  }
  else
  {
    CurrentThread = (_ETHREAD *)KeGetCurrentThread();
    --CurrentThread->Tcb.SpecialApcDisable;
    ExAcquirePushLockExclusiveEx(*(_EX_PUSH_LOCK **)&BugCheckParameter2, v1);
    v4 = _InterlockedExchangeAdd64((volatile signed __int64 *)v2, 0xFFFFFFFFFFFFFFFFui64);
    if( (v4 & 2) != 0 && (v4 & 4) == 0 )
      ExfTryToWakePushLock((_EX_PUSH_LOCK *)v2);
    LODWORD(a3) = 0;
    v5 = (_ETHREAD *)KeGetCurrentThread();
    if( MiGetSystemRegionType(v2) == 1 )
      SessionId = MmGetSessionIdEx(v5->Tcb.ApcState.Process);
    else
      SessionId = -1;
    --v5->Tcb.SpecialApcDisable;
    v7 = ++v5->Tcb.AbAllocationRegionCount;
    v8 = ((char)v5->Tcb.AbEntrySummary | (char)v5->Tcb.AbOrphanedEntrySummary) ^ 0x3F;
    while( 1 )
    {
      v9 = !_BitScanReverse((unsigned int *)&v10, v8);
      if( v9 )
        break;
      v11 = &v5->Tcb.LockEntries[v10];
      v8 &= ~(1 << v10);
      if( (v11->AcquiredByte & 1) != 0
        && (v11->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 & 1) == 0
        && (v11->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 & 0x7FFFFFFFFFFFFFFCi64) == (v2 & 0x7FFFFFFFFFFFFFFCi64)
        && v11->LockState.SessionId == SessionId )
      {
        v11->AcquiredByte &= ~1u;
        if( v11->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 )
        {
          if( v11 )
          {
            v11->CrossThreadReleasableAndBusyByte |= 2u;
            if( v11->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 < 0 )
              KiAbEntryRemoveFromTree(v11);
            v12 = v11->BoostBitmap.AllFields & 0x1FFFF;
            v13 = v11->BoostBitmap.AllFields & 0xFFFE0000;
            v11->ThreadLocalFlags &= ~1u;
            LODWORD(a3) = v12;
            v11->BoostBitmap.AllFields = v13;
            v11->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 = 0i64;
            v14 = v11 - v5->Tcb.LockEntries;
            if( v7 == 1 )
              v5->Tcb.AbEntrySummary |= 1 << v14;
            else
              _InterlockedOr8((volatile signed __int8 *)&v5->Tcb.AbOrphanedEntrySummary, 1 << v14);
            goto LABEL_17;
          }
          break;
        }
      }
    }
    if( (*(&v5->Tcb.MiscFlags + 1) & 0x10000) == 0 )
      KeBugCheckEx(0x162u, v5, (PVOID)v2, (PVOID)SessionId, 0i64);
LABEL_17:
    --v5->Tcb.AbAllocationRegionCount;
    KiAbThreadRemoveBoosts(&v5->Tcb, (VOID *)v2, &a3);
    v9 = v5->Tcb.SpecialApcDisable++ == -1;
    if( v9 && ($F25F8C4BA33AF922A5F1AF68CD89DDDF *)v5->Tcb.ApcState.ApcListHead[0].Flink != &v5->Tcb.152 )
      KiCheckForKernelApcDelivery();
    KiLeaveGuardedRegionUnsafe((__int64)KeGetCurrentThread());
  }
  return result;
}

Referenced by: