}
	if err := rb.Flush(); err != (testError1{}) {
		t.Errorf("Write error: got %T, want testError1", err)
	}

	rb.CloseWithError(testError2{})
	if _, err := rb.Write(nil); err != (testError1{}) {
		t.Errorf("Write error: got %T, want testError1", err)
	}

	rb.Reset()
	rb.CloseWithError(testError1{})
	if _, err := rb.Read(nil); err != (testError1{}) {
		t.Errorf("Read error: got %T, want testError1", err)
	}

	r.mu.Lock()
	defer r.mu.Unlock()

	return !r.isFull && r.w == r.r
}

// CloseWithError closes the writer; reads will return
// no bytes and the error err, or EOF if err is nil.
//
// CloseWithError never overwrites the previous error if it exists
// and always returns nil.
func (r *RingBuffer) CloseWithError(err error) {
	if err == nil {
		err = io.EOF
	}
	r.setErr(err, false)
}

			go func() {
				werr := er.getObjectWithFileInfo(ctx, minioMetaBucket, o.objectPath(partN), 0,
					fi.Size, pw, fi, metaArr, onlineDisks)
				pw.CloseWithError(werr)
			}()

			tmp := newMetacacheReader(pr)
			e, err := tmp.filter(o)
			pr.CloseWithError(err)
			tmp.Close()
			entries.o = append(entries.o, e.o...)
			if o.Limit > 0 && entries.len() > o.Limit {
				entries.truncate(o.Limit)

	}

	pr, pw := xioutil.WaitPipe()
	go func() {
		pw.CloseWithError(er.getObjectWithFileInfo(ctx, bucket, object, off, length, pw, fi, metaArr, onlineDisks))
	}()

	// Cleanup function to cause the go routine above to exit, in
	// case of incomplete read.
	pipeCloser := func() {
		pr.CloseWithError(nil)
	}

	if !unlockOnDefer {
		return fn(pr, h, pipeCloser, nsUnlocker)
	}

			mw := msgp.NewWriter(w)
			n, err := mw.Write(data[:])
			if err != nil {
				w.CloseWithError(err)
				return
			}
			if n != len(data) {
				w.CloseWithError(io.ErrShortWrite)
				return
			}
			err = v.EncodeMsg(mw)
			mw.Flush()
			w.CloseWithError(err)
		}()
		return r
	}

	globalLocalDrivesMu.RLock()