243     MutexLock l(&mutex_);  in NewWritableFile()  local
264     MutexLock l(&mutex_);  in ReopenWritableFile()  local
285     MutexLock l(&mutex_);  in NewRandomRWFile()  local
326     MutexLock l(&mutex_);  in RenameFile()  local
345   MutexLock l(&mutex_);  in WritableFileClosed()  local
353   MutexLock l(&mutex_);  in WritableFileSynced()  local
364   MutexLock l(&mutex_);  in WritableFileAppended()  local
379   MutexLock l(&mutex_);  in DropFileData()  local
407     MutexLock l(&mutex_);  in DeleteFilesCreatedAfterLastDirSync()  local
423   MutexLock l(&mutex_);  in ResetState()  local
430   MutexLock l(&mutex_);  in UntrackFile()  local