MiUnlockMdlWritePages

VOID __stdcall MiUnlockMdlWritePages(UINT64 *Page, UINT64 *LastPage, IO_STATUS_BLOCK *IoStatus){
  UINT64 *v4; 
  unsigned int v5; 
  _MMPFN *PfnDb; 
  char *v7; 
  unsigned __int8 CurrentIrql; 
  UINT64 v9; 
  __int64 v10; 
  INT64 v11; 
  struct _KPRCB *CurrentPrcb; 
  IO_STATUS_BLOCK *v13; 
  unsigned __int64 v14; 
  __int64 Information_high; 
  bool v16; 
  signed __int32 v17; 
  unsigned __int64 v18; 
  unsigned __int64 v19; 
  unsigned __int64 v20; 
  struct _KLOCK_QUEUE_HANDLE LockHandle; 
  UINT64 SpinCount; 
  if( Page < LastPage )
  {
    v4 = Page;
    v5 = (unsigned int)IoStatus->Status >> 31;
    PfnDb = MmGetPfnDb();
    do
    {
      v7 = (char *)PfnDb + 48 * *v4;
      CurrentIrql = KeGetCurrentIrql();
      __writecr8(2ui64);
      LODWORD(SpinCount) = 0;
      while( _interlockedbittestandset64((volatile signed __int32 *)v7 + 6, 0x3Fui64) )
      {
        do
          KeYieldProcessorEx(&SpinCount);
        while( *((__int64 *)v7 + 3) < 0 );
      }
      v9 = 1i64;
      v10 = (*((_QWORD *)v7 + 5) >> 39) & 0x3FFi64;
      memset(&LockHandle, 0, sizeof(LockHandle));
      v11 = *(_QWORD *)(qword_140C4E388 + 8 * v10);
      if( !*(_QWORD *)(v11 + 6264)
        || (KeAcquireInStackQueuedSpinLock((UINT64 *)(v11 + 6248), &LockHandle),
            v9 = MiRestockOverCommit(v11, 1ui64),
            KeReleaseInStackQueuedSpinLockFromDpcLevel(&LockHandle),
            __writecr8(LockHandle.OldIrql),
            v9) )
      {
        if( (ULONG_PTR *)v11 == &MiSystemPartition
          && (CurrentPrcb = KeGetCurrentPrcb(),
              _m_prefetchw((char *)CurrentPrcb + 33560),
              IoStatus = (IO_STATUS_BLOCK *)*((unsigned int *)CurrentPrcb + 8390),
              (unsigned __int64)IoStatus + v9 <= 0x100) )
        {
          while( 1 )
          {
            v13 = (IO_STATUS_BLOCK *)_InterlockedCompareExchange(
                                       (volatile signed __int32 *)CurrentPrcb + 8390,
                                       (_DWORD)IoStatus + v9,
                                       (signed __int32)IoStatus);
            if( v13 == IoStatus )
              break;
            IoStatus = v13;
            if( (unsigned __int64)v13 + v9 > 0x100 )
              goto LABEL_14;
          }
        }
        else
        {
LABEL_14:
          v18 = _InterlockedExchangeAdd64((volatile signed __int64 *)(v11 + 7464), -(__int64)v9);
          v19 = *(_QWORD *)(v11 + 6240);
          if( v18 >= v19 && v18 - v9 < v19 || (v20 = *(_QWORD *)(v11 + 6232), v18 >= v20) && v18 - v9 < v20 )
            MiSyncCommitSignals((_MI_PARTITION *)v11, 0i64);
        }
      }
      v14 = 1i64;
      if( (ULONG_PTR *)v11 != &MiSystemPartition )
        goto LABEL_22;
      IoStatus = (IO_STATUS_BLOCK *)KeGetCurrentPrcb();
      Information_high = SHIDWORD(IoStatus[2097].Information);
      if( (_DWORD)Information_high == -1 )
        goto LABEL_22;
      if( (unsigned __int64)(Information_high + 1) <= 0x100 )
      {
        do
        {
          v17 = _InterlockedCompareExchange(
                  (volatile signed __int32 *)&IoStatus[2097].Information + 1,
                  Information_high + 1,
                  Information_high);
          v16 = (_DWORD)Information_high == v17;
          LODWORD(Information_high) = v17;
          if( v16 )
            goto LABEL_12;
        }
        while( v17 != -1 && (unsigned __int64)(v17 + 1i64) <= 0x100 );
      }
      if( (int)Information_high > 192
        && (_DWORD)Information_high != -1
        && (_DWORD)Information_high == _InterlockedCompareExchange(
                                         (volatile signed __int32 *)&IoStatus[2097].Information + 1,
                                         192,
                                         Information_high) )
      {
        v14 = (int)Information_high - 192 + 1i64;
      }
      if( v14 )
LABEL_22:
        _InterlockedExchangeAdd64((volatile signed __int64 *)(v11 + 7168), v14);
LABEL_12:
      MiWriteCompletePfn((_MMPFN *)v7, v5, (UINT8 *)IoStatus);
      _InterlockedAnd64((volatile signed __int64 *)v7 + 3, 0x7FFFFFFFFFFFFFFFui64);
      __writecr8(CurrentIrql);
      ++v4;
      PfnDb = MmGetPfnDb();
    }
    while( v4 < LastPage );
  }
}

Referenced by: