RtlpHpSegMgrVaCtxFree

unsigned __int64 __fastcall RtlpHpSegMgrVaCtxFree(__int64 a1, __int64 a2, _QWORD *r8_0){
  __int128 v3; 
  unsigned __int64 v7; 
  unsigned __int16 *v8; 
  volatile signed __int64 *v9; 
  unsigned __int64 v10; 
  UINT8 v11; 
  unsigned __int16 *v12; 
  unsigned __int64 v13; 
  int v14; 
  int v15; 
  unsigned __int64 v16; 
  unsigned __int16 *v17; 
  unsigned __int16 *v18; 
  _ETHREAD *CurrentThread; 
  unsigned int SessionId; 
  unsigned __int8 v21; 
  int v22; 
  _KLOCK_ENTRY *v23; 
  bool v24; 
  __int64 v25; 
  __int64 v26; 
  __int128 v28[4]; 
  UINT64 a3; 
  unsigned __int16 *v30; 

  v3 = *(_OWORD *)(a1 + 40);
  v30 = 0i64;
  v7 = a2 & 0xFFFFFFFFFFE00000ui64;
  v8 = 0i64;
  v28[0] = v3;
  RtlpHpQueryVA(a2 & 0xFFFFFFFFFFE00000ui64, v28, &v30, 0i64);
  v9 = (volatile signed __int64 *)(a1 + 112);
  v10 = (a2 - v7) / *r8_0;
  v11 = RtlpHpAcquireLockExclusive((_EX_PUSH_LOCK *)(a1 + 112), *(_DWORD *)(a1 + 40) & 1);
  v12 = v30;
  v13 = v11;
  v14 = (unsigned __int16)(v30[1] ^ (1 << v10));
  v15 = 0x200000ui64 / *r8_0;
  v30[1] = v14;
  v16 = (unsigned __int64)*v12 >> 15;
  if( v14 == (1 << v15) - 1 )
  {
    if( *((_QWORD *)v12 + 1) != -1i64 )
    {
      while( 1 )
      {
        v17 = *(unsigned __int16 **)(a1 + 8 * v16 + 120);
        if( !v17 )
          NT_ASSERT("Link != ((void *)0)");
        *(_QWORD *)(a1 + 8 * v16 + 120) = *(_QWORD *)v17;
        if( v17 == v12 + 4 )
          break;
        *(_QWORD *)v17 = v8;
        v8 = v17;
      }
      while( 1 )
      {
        v18 = v8;
        if( !v8 )
          break;
        v8 = *(unsigned __int16 **)v8;
        *(_QWORD *)v18 = *(_QWORD *)(a1 + 8 * v16 + 120);
        *(_QWORD *)(a1 + 8 * v16 + 120) = v18;
      }
    }
  }
  else
  {
    if( ((v14 - 1) & v14) == 0 )
    {
      *((_QWORD *)v12 + 1) = *(_QWORD *)(a1 + 8 * v16 + 120);
      *(_QWORD *)(a1 + 8 * v16 + 120) = v12 + 4;
    }
    v7 = 0i64;
  }
  if( (*(_DWORD *)(a1 + 40) & 1) != 0 )
  {
    ExReleaseSpinLockExclusiveFromDpcLevel((INT64 *)(a1 + 112));
    __writecr8(v13);
  }
  else
  {
    if( (_InterlockedExchangeAdd64(v9, 0xFFFFFFFFFFFFFFFFui64) & 6) == 2 )
      ExfTryToWakePushLock((_EX_PUSH_LOCK *)(a1 + 112));
    LODWORD(a3) = 0;
    CurrentThread = (_ETHREAD *)KeGetCurrentThread();
    if( MiGetSystemRegionType(a1 + 112) == 1 )
      SessionId = MmGetSessionIdEx(CurrentThread->Tcb.ApcState.Process);
    else
      SessionId = -1;
    --CurrentThread->Tcb.SpecialApcDisable;
    v21 = ++CurrentThread->Tcb.AbAllocationRegionCount;
    v22 = ((char)CurrentThread->Tcb.AbEntrySummary | (char)CurrentThread->Tcb.AbOrphanedEntrySummary) ^ 0x3F;
    while( 1 )
    {
      v24 = !_BitScanReverse((unsigned int *)&v25, v22);
      if( v24 )
        goto LABEL_25;
      v23 = &CurrentThread->Tcb.LockEntries[v25];
      v22 &= ~(1 << v25);
      if( (v23->AcquiredByte & 1) != 0
        && (v23->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 & 1) == 0
        && (v23->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 & 0x7FFFFFFFFFFFFFFCi64) == ((unsigned __int64)v9 & 0x7FFFFFFFFFFFFFFCi64)
        && v23->LockState.SessionId == SessionId )
      {
        v23->AcquiredByte &= ~1u;
        if( v23->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 )
          break;
      }
    }
    if( !v23 )
    {
LABEL_25:
      if( (*(&CurrentThread->Tcb.MiscFlags + 1) & 0x10000) == 0 )
        KeBugCheckEx(0x162u, CurrentThread, (PVOID)v9, (PVOID)SessionId, 0i64);
      goto LABEL_32;
    }
    v23->CrossThreadReleasableAndBusyByte |= 2u;
    if( v23->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 < 0 )
      KiAbEntryRemoveFromTree(v23);
    LODWORD(a3) = v23->BoostBitmap.AllFields & 0x1FFFF;
    v23->BoostBitmap.AllFields &= 0xFFFE0000;
    v23->ThreadLocalFlags &= ~1u;
    v23->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 = 0i64;
    v26 = v23 - CurrentThread->Tcb.LockEntries;
    if( v21 == 1 )
      CurrentThread->Tcb.AbEntrySummary |= 1 << v26;
    else
      _InterlockedOr8((volatile signed __int8 *)&CurrentThread->Tcb.AbOrphanedEntrySummary, 1 << v26);
LABEL_32:
    --CurrentThread->Tcb.AbAllocationRegionCount;
    KiAbThreadRemoveBoosts(&CurrentThread->Tcb, (VOID *)v9, &a3);
    v24 = CurrentThread->Tcb.SpecialApcDisable++ == -1;
    if( v24
      && ($F25F8C4BA33AF922A5F1AF68CD89DDDF *)CurrentThread->Tcb.ApcState.ApcListHead[0].Flink != &CurrentThread->Tcb.152 )
    {
      KiCheckForKernelApcDelivery();
    }
    KiLeaveGuardedRegionUnsafe((__int64)KeGetCurrentThread());
  }
  if( v7 )
    *r8_0 = 0x200000i64;
  return v7;
}

Referenced by: