SMKM_STORE_MGR::SmFeEmpty

INT64 __fastcall SMKM_STORE_MGR::SmFeEmpty(__int64 a1){
  _ETHREAD *CurrentThread; 
  __int64 v3; 
  char *v4; 
  _ETHREAD *v5; 
  unsigned int SessionId; 
  char v7; 
  int v8; 
  unsigned __int64 v9; 
  bool v10; 
  __int64 v11; 
  __int64 v12; 
  int v14; 
  CurrentThread = (_ETHREAD *)KeGetCurrentThread();
  --*((_WORD *)CurrentThread + 243);
  v3 = a1 + 440;
  ExAcquirePushLockExclusiveEx(a1 + 440, 0i64);
  v4 = *(char **)(a1 + 448);
  if( v4 )
    B_TREE<_SM_PAGE_KEY,SMKM_STORE_MGR::SMKM_FRONTEND_ENTRY,4096,B_TREE_DUMMY_NODE_POOL,B_TREE_KEY_COMPARATOR<_SM_PAGE_KEY>>::BTreeNodeFree(
      a1 + 448,
      v4);
  *(_OWORD *)(a1 + 448) = 0i64;
  if( (_InterlockedExchangeAdd64((volatile signed __int64 *)v3, 0xFFFFFFFFFFFFFFFFui64) & 6) == 2 )
    ExfTryToWakePushLock((volatile INT64 *)v3);
  v14 = 0;
  v5 = (_ETHREAD *)KeGetCurrentThread();
  if( (unsigned int)MiGetSystemRegionType(v3) == 1 )
    SessionId = MmGetSessionIdEx(*((_QWORD *)v5 + 23));
  else
    SessionId = -1;
  --*((_WORD *)v5 + 243);
  v7 = ++*((_BYTE *)v5 + 794);
  v8 = (*((char *)v5 + 792) | *((char *)v5 + 870)) ^ 0x3F;
  while( 1 )
  {
    v10 = !_BitScanReverse((unsigned int *)&v11, v8);
    if( v10 )
      goto LABEL_15;
    v9 = *((_QWORD *)v5 + 100) + 96 * v11;
    v8 &= ~(1 << v11);
    if( (*(_BYTE *)(v9 + 26) & 1) != 0
      && (*(_DWORD *)(v9 + 32) & 1) == 0
      && (*(_QWORD *)(v9 + 32) & 0x7FFFFFFFFFFFFFFCi64) == (v3 & 0x7FFFFFFFFFFFFFFCi64)
      && *(_DWORD *)(v9 + 40) == SessionId )
    {
      *(_BYTE *)(v9 + 26) &= ~1u;
      if( *(_QWORD *)(v9 + 32) )
        break;
    }
  }
  if( !v9 )
  {
LABEL_15:
    if( (*((_DWORD *)v5 + 30) & 0x10000) == 0 )
      KeBugCheckEx(0x162u, (ULONG_PTR)v5, v3, SessionId, 0i64);
    goto LABEL_22;
  }
  *(_BYTE *)(v9 + 32) |= 2u;
  if( *(__int64 *)(v9 + 32) < 0 )
    KiAbEntryRemoveFromTree(v9);
  v14 = *(_DWORD *)(v9 + 88) & 0x1FFFF;
  *(_DWORD *)(v9 + 88) &= 0xFFFE0000;
  *(_BYTE *)(v9 + 25) &= ~1u;
  *(_QWORD *)(v9 + 32) = 0i64;
  v12 = (__int64)(v9 - *((_QWORD *)v5 + 100)) / 96;
  if( v7 == 1 )
    *((_BYTE *)v5 + 792) |= 1 << v12;
  else
    _InterlockedOr8((volatile signed __int8 *)v5 + 870, 1 << v12);
LABEL_22:
  --*((_BYTE *)v5 + 794);
  KiAbThreadRemoveBoosts((ULONG_PTR)v5, v3, (unsigned int *)&v14);
  v10 = (*((_WORD *)v5 + 243))++ == 0xFFFF;
  if( v10 && *((_ETHREAD **)v5 + 19) != (_ETHREAD *)((char *)v5 + 152) )
    KiCheckForKernelApcDelivery();
  return KiLeaveGuardedRegionUnsafe((__int64)KeGetCurrentThread());
}

Referenced by: