MiLockSectionControlArea

__int64 __fastcall MiLockSectionControlArea(_QWORD *a1, int a2, KIRQL *a3){
  KIRQL v6; 
  unsigned __int64 v7; 
  __int64 v8; 
  unsigned __int64 v10; 
  while( 1 )
  {
    v6 = ExAcquireSpinLockExclusive(&dword_140C4C6C0);
    v7 = v6;
    *a3 = v6;
    v8 = a2 == 1 ? *a1 : a1[2];
    if( !v8 )
      break;
    if( (unsigned int)ExTryAcquireSpinLockExclusiveAtDpcLevel((INT64 *)(v8 + 72)) )
    {
      ExReleaseSpinLockExclusiveFromDpcLevel((INT64 *)&dword_140C4C6C0);
      return v8;
    }
    v10 = *a3;
    ExReleaseSpinLockExclusiveFromDpcLevel((INT64 *)&dword_140C4C6C0);
    __writecr8(v10);
  }
  ExReleaseSpinLockExclusiveFromDpcLevel((INT64 *)&dword_140C4C6C0);
  __writecr8(v7);
  return 0i64;
}

Referenced by:

MiComputeFlushRange
MiFlushDataSection
MiReferenceExistingControlArea
MmDisableModifiedWriteOfSection
MmEnoughMemoryForWrite
MmGetImageFileSignatureInformation
MmOnlySystemCacheViewsPresent
MmUpdateSectionIoAttribution