Method calcWaterMark

fs/cache/full_file_cache/cache_pool.cpp:313–316

}

uint64_t FileCachePool::calcWaterMark(uint64_t capacity, uint64_t maxFreeSpace) {
  return std::max(static_cast<uint64_t>(capacity * kWaterMarkRatio * 0.01),
    capacity > maxFreeSpace ? capacity - maxFreeSpace : 0);
}

bool FileCachePool::afterFtrucate(FileNameMap::iterator iter) {
  auto lruEntry = iter->second.get();