SMKM_STORE_MGR::SmFeStoreDelete

void __fastcall SMKM_STORE_MGR::SmFeStoreDelete(_EX_PUSH_LOCK *a1, int a2){
  int v4; 
  unsigned int v5; 
  _ETHREAD *CurrentThread; 
  unsigned __int64 v7; 
  __int64 bf_0; 
  unsigned __int64 v9; 
  __int64 v10; 
  __int64 v11; 
  _ETHREAD *v12; 
  unsigned int SessionId; 
  unsigned __int8 v14; 
  int v15; 
  bool v16; 
  __int64 v17; 
  _KLOCK_ENTRY *v18; 
  __int64 v19; 
  __int64 v20; 
  int a3; 
  __int128 a3_4; 
  __int64 v23[3]; 
  int v24; 
  int v25; 
  __int64 v26; 
  char v27[136]; 

  memset(v27, 0i64, 0x80u);
  v23[1] = 0i64;
  v23[2] = 0i64;
  v4 = 0;
  v26 = 0i64;
  v5 = 0;
  v24 = 0;
  v23[0] = (__int64)v27;
  v25 = 8;
  CurrentThread = (_ETHREAD *)KeGetCurrentThread();
  --CurrentThread->Tcb.SpecialApcDisable;
  v7 = (unsigned __int64)&a1[55];
  ExAcquirePushLockExclusiveEx(a1 + 55, 0i64);
  bf_0 = a1[56]._bf_0;
  a3_4 = 0i64;
  if( !bf_0 )
    goto LABEL_2;
  while( !*(_BYTE *)(bf_0 + 3) )
    bf_0 = *(_QWORD *)(bf_0 + 8);
  *(_QWORD *)&a3_4 = bf_0;
  *((_QWORD *)&a3_4 + 1) = bf_0 + 8;
  while( 1 )
  {
    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>>::BTreeSearchKey(
        (__int64)&a1[56],
        v5,
        (__int64)v23);
      B_TREE<_SM_PAGE_KEY,SMKM_STORE_MGR::SMKM_FRONTEND_ENTRY,4096,B_TREE_DUMMY_NODE_POOL,B_TREE_KEY_COMPARATOR<_SM_PAGE_KEY>>::BTreeIteratorFromSearchResult(
        v20,
        (__int64)&a3_4,
        (__int64)v23);
      bf_0 = a3_4;
      v4 = 0;
    }
    if( !bf_0 )
      break;
    v9 = *((_QWORD *)&a3_4 + 1) + 8i64;
    v10 = (unsigned __int16)*(_DWORD *)bf_0 + 2i64;
    *((_QWORD *)&a3_4 + 1) = v9;
    if( v9 >= bf_0 + 8 * v10 )
    {
      v11 = *(_QWORD *)(bf_0 + 8);
      if( v11 )
      {
        *(_QWORD *)&a3_4 = *(_QWORD *)(bf_0 + 8);
        *((_QWORD *)&a3_4 + 1) = v11 + 16;
        bf_0 = v11;
      }
      v9 = (v11 + 16) & -(__int64)(v11 != 0);
    }
    if( !v9 )
      break;
    if( *(unsigned __int16 *)(v9 + 4) == a2 )
    {
      v5 = *(_DWORD *)v9;
      *(_BYTE *)(v9 + 6) = 0;
      SMKM_STORE_MGR::SmFeDeleteEntry((__int64)a1, (__int64)v23, (__int64 *)&a3_4);
      v4 = 1;
LABEL_2:
      bf_0 = a3_4;
      continue;
    }
  }
  if( (_InterlockedExchangeAdd64((volatile signed __int64 *)v7, 0xFFFFFFFFFFFFFFFFui64) & 6) == 2 )
    ExfTryToWakePushLock(a1 + 55);
  a3 = 0;
  v12 = (_ETHREAD *)KeGetCurrentThread();
  if( MiGetSystemRegionType((UINT64)&a1[55]) == 1 )
    SessionId = MmGetSessionIdEx(v12->Tcb.ApcState.Process);
  else
    SessionId = -1;
  --v12->Tcb.SpecialApcDisable;
  v14 = ++v12->Tcb.AbAllocationRegionCount;
  v15 = ((char)v12->Tcb.AbEntrySummary | (char)v12->Tcb.AbOrphanedEntrySummary) ^ 0x3F;
  while( 1 )
  {
    v16 = !_BitScanReverse((unsigned int *)&v17, v15);
    if( v16 )
      break;
    v18 = &v12->Tcb.LockEntries[v17];
    v15 &= ~(1 << v17);
    if( (v18->AcquiredByte & 1) != 0
      && (v18->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 & 1) == 0
      && (v18->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 & 0x7FFFFFFFFFFFFFFCi64) == (v7 & 0x7FFFFFFFFFFFFFFCi64)
      && v18->LockState.SessionId == SessionId )
    {
      v18->AcquiredByte &= ~1u;
      if( v18->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 )
      {
        if( v18 )
        {
          v18->CrossThreadReleasableAndBusyByte |= 2u;
          if( v18->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 < 0 )
            KiAbEntryRemoveFromTree(v18);
          a3 = v18->BoostBitmap.AllFields & 0x1FFFF;
          v18->BoostBitmap.AllFields &= 0xFFFE0000;
          v18->ThreadLocalFlags &= ~1u;
          v18->LockState.$E8276A2CF8B819ED32D1B6FEB35D730A::_bf_0 = 0i64;
          v19 = v18 - v12->Tcb.LockEntries;
          if( v14 == 1 )
            v12->Tcb.AbEntrySummary |= 1 << v19;
          else
            _InterlockedOr8((volatile signed __int8 *)&v12->Tcb.AbOrphanedEntrySummary, 1 << v19);
          goto LABEL_29;
        }
        break;
      }
    }
  }
  if( (*(&v12->Tcb.MiscFlags + 1) & 0x10000) == 0 )
    KeBugCheckEx(0x162u, v12, (PVOID)v7, (PVOID)SessionId, 0i64);
LABEL_29:
  --v12->Tcb.AbAllocationRegionCount;
  KiAbThreadRemoveBoosts(&v12->Tcb, (VOID *)v7, (UINT64 *)&a3);
  v16 = v12->Tcb.SpecialApcDisable++ == -1;
  if( v16 && ($F25F8C4BA33AF922A5F1AF68CD89DDDF *)v12->Tcb.ApcState.ApcListHead[0].Flink != &v12->Tcb.152 )
    KiCheckForKernelApcDelivery();
  KiLeaveGuardedRegionUnsafe((__int64)KeGetCurrentThread());
}

Referenced by: