}
	if m.TryRLock() {
		t.Fatalf("TryRLock succeeded with mutex locked")
	}
	m.Unlock()

	if !m.TryLock() {
		t.Fatalf("TryLock failed with mutex unlocked")
	}
	m.Unlock()

	if !m.TryRLock() {
		t.Fatalf("TryRLock failed with mutex unlocked")
	}
	if !m.TryRLock() {
		t.Fatalf("TryRLock failed with mutex rlocked")
	}
	if m.TryLock() {

	defer func() {
		if recover() == nil {
			t.Fatalf("unlock of unlocked RWMutex did not panic")
		}
	}()
	mu := NewDRWMutex(ds, "test")
	mu.Unlock(context.Background())
}

// Borrowed from rwmutex_test.go
func TestUnlockPanic2(t *testing.T) {
	mu := NewDRWMutex(ds, "test-unlock-panic-2")
	defer func() {
		if recover() == nil {
			t.Fatalf("unlock of unlocked RWMutex did not panic")
		}

			rw.writer.set(m)
			unlock(&rw.rLock)
			notesleep(&m.park)
			noteclear(&m.park)
		})
	} else {
		unlock(&rw.rLock)
	}
}

// unlock unlocks rw for writing.
func (rw *rwmutex) unlock() {
	// Announce to readers that there is no active writer.
	r := rw.readerCount.Add(rwmutexMaxReaders)
	if r >= rwmutexMaxReaders {
		throw("unlock of unlocked rwmutex")
	}
	// Unblock blocked readers.

	// 	P.1 locks file A.
	// 	Q.3 locks file B.
	// 	Q.3 blocks on file A.
	// 	P.2 blocks on file B. (This is erroneously reported as a deadlock.)
	// 	P.1 unlocks file A.
	// 	Q.3 unblocks and locks file A.
	// 	Q.3 unlocks files A and B.
	// 	P.2 unblocks and locks file B.
	// 	P.2 unlocks file B.
	//
	// These spurious errors were observed in practice on AIX and Solaris in
	// cmd/go: see https://golang.org/issue/32817.
	//

// arrange for another goroutine to [RWMutex.RUnlock] ([RWMutex.Unlock]) it.
func (rw *RWMutex) Unlock() {
	if race.Enabled {
		_ = rw.w.state
		race.Release(unsafe.Pointer(&rw.readerSem))
		race.Disable()
	}

	// Announce to readers there is no active writer.
	r := rw.readerCount.Add(rwmutexMaxReaders)
	if r >= rwmutexMaxReaders {
		race.Enable()
		fatal("sync: Unlock of unlocked RWMutex")
	}

	// to indicate we haven't sufficiently unlocked lockers to avoid deadlocks.
	//
	// Caller may use this as an indication to call again.
	return !checkFailedUnlocks(*locks, tolerance)
}

// Unlock unlocks the write lock.
//
// It is a run-time error if dm is not locked on entry to Unlock.
func (dm *DRWMutex) Unlock(ctx context.Context) {
	dm.m.Lock()
	dm.cancelRefresh()
	dm.m.Unlock()

		if recover() == nil {
			t.Fatalf("unlock of unlocked RWMutex did not panic")
		}
	}()
	mu := NewLRWMutex()
	mu.Unlock()
}

// Borrowed from rwmutex_test.go
func TestUnlockPanic2(t *testing.T) {
	defer func() {
		if recover() == nil {
			t.Fatalf("unlock of unlocked RWMutex did not panic")
		}
	}()
	mu := NewLRWMutex()
	mu.RLock()
	mu.Unlock()
}

// Borrowed from rwmutex_test.go

			rwm.RLock()
			rwm.RLock()
			rwm.RUnlock()
			rwm.RUnlock()
			rwm.Lock()
			rwm.Unlock()
		}
	})
}

func benchmarkRWMutex(b *testing.B, localWork, writeRatio int) {
	var rwm RWMutex
	rwm.Init()
	b.RunParallel(func(pb *testing.PB) {
		foo := 0
		for pb.Next() {
			foo++
			if foo%writeRatio == 0 {
				rwm.Lock()
				rwm.Unlock()
			} else {
				rwm.RLock()

		}
	}
}

// Unlock unlocks the write lock.
//
// It is a run-time error if lm is not locked on entry to Unlock.
func (lm *LRWMutex) Unlock() {
	isWriteLock := true
	success := lm.unlock(isWriteLock)
	if !success {
		panic("Trying to Unlock() while no Lock() is active")
	}
}

// RUnlock releases a read lock held on lm.
//

	}

	l.mutex.Lock()
	defer l.mutex.Unlock()
	var locksHeld int64
	if locksHeld, reply = l.lockMap[args.Resources[0]]; !reply { // No lock is held on the given name
		return false, fmt.Errorf("Unlock attempted on an unlocked entity: %s", args.Resources[0])
	}
	if reply = locksHeld == WriteLock; !reply { // Unless it is a write lock