cacher.bookmarkWatchers.popExpiredWatchersThreadUnsafe()
				cacher.Unlock()
			}
		}
	}()

	// wait for adding/removing watchers to end
	wg.Wait()

	if watchErr != nil {
		t.Fatal(watchErr)
	}

	// wait out the expiration period and pop expired watchers
	time.Sleep(2 * time.Second)
	cacher.Lock()
	defer cacher.Unlock()
	cacher.bookmarkWatchers.popExpiredWatchersThreadUnsafe()

		copy(disks, newDisks)
		objLayer.(*erasureServerPools).serverPools[0].erasureDisksMu.Unlock()
	}
	getDisk := func(n int) StorageAPI {
		objLayer.(*erasureServerPools).serverPools[0].erasureDisksMu.Lock()
		disk := disks[n]
		objLayer.(*erasureServerPools).serverPools[0].erasureDisksMu.Unlock()
		return disk
	}

	// Remove 4 disks.
	setDisks(nil, nil, nil, nil)

// called and the state is fully propagated to local cache.
func (proxier *Proxier) OnServiceSynced() {
	proxier.mu.Lock()
	proxier.servicesSynced = true
	proxier.setInitialized(proxier.endpointSlicesSynced)
	proxier.mu.Unlock()

	// Sync unconditionally - this is called once per lifetime.
	proxier.syncProxyRules()
}

// OnEndpointSliceAdd is called whenever creation of a new endpoint slice object
// is observed.

	if ps == nil {
		log.Infof("Metric without context %s %v %s", key, proxyID, msg)
		return
	}
	ps.proxyStatusMutex.Lock()
	defer ps.proxyStatusMutex.Unlock()

	metricMap, f := ps.ProxyStatus[metric.Name()]
	if !f {
		metricMap = map[string]ProxyPushStatus{}
		ps.ProxyStatus[metric.Name()] = metricMap
	}
	ev := ProxyPushStatus{Message: msg, Proxy: proxyID}

	// Once arenasHugePages is set, all new L2 entries will be eligible for
	// huge pages. We'll set all the old entries after we release the lock.
	lock(&h.lock)
	if h.arenasHugePages {
		unlock(&h.lock)
		return
	}
	h.arenasHugePages = true
	unlock(&h.lock)

	// N.B. The arenas L1 map is quite small on all platforms, so it's fine to
	// just iterate over the whole thing.
	for i := range h.arenas {

}

func (mms *MainModuleSet) Index(m module.Version) *modFileIndex {
	mms.indexMu.Lock()
	defer mms.indexMu.Unlock()
	return mms.indices[m]
}

func (mms *MainModuleSet) SetIndex(m module.Version, index *modFileIndex) {
	mms.indexMu.Lock()
	defer mms.indexMu.Unlock()
	mms.indices[m] = index
}

func (mms *MainModuleSet) ModFile(m module.Version) *modfile.File {
	return mms.modFiles[m]
}

		out = gcController.setMemoryLimit(in)
		if in < 0 || out == in {
			// If we're just checking the value or not changing
			// it, there's no point in doing the rest.
			unlock(&mheap_.lock)
			return
		}
		gcControllerCommit()
		unlock(&mheap_.lock)
	})
	return out
}

func readGOMEMLIMIT() int64 {
	p := gogetenv("GOMEMLIMIT")
	if p == "" || p == "off" {
		return maxInt64
	}

  // Acquires this mutex.
  void Lock() {
    GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_lock(&mutex_));
    owner_ = pthread_self();
    has_owner_ = true;
  }

  // Releases this mutex.
  void Unlock() {
    // Since the lock is being released the owner_ field should no longer be
    // considered valid. We don't protect writing to has_owner_ here, as it's

		return "", err
	}

	if xioutil.SameFile(fi, fileInfo) && diskID != "" {
		s.Lock()
		// If the file has not changed, just return the cached diskID information.
		s.formatLastCheck = time.Now()
		s.Unlock()
		return diskID, nil
	}

	b, err := os.ReadFile(s.formatFile)
	if err != nil {
		// If the disk is still not initialized.
		if osIsNotExist(err) {
			if err = Access(s.drivePath); err == nil {

}

func startInstall(dir string) chan struct{} {
	installedMu.Lock()
	ch := installed[dir]
	if ch == nil {
		ch = make(chan struct{})
		installed[dir] = ch
		go runInstall(dir, ch)
	}
	installedMu.Unlock()
	return ch
}

// runInstall installs the library, package, or binary associated with pkg,
// which is relative to $GOROOT/src.
func runInstall(pkg string, ch chan struct{}) {