newBuf := dst
	if len(dst) != len(p.readers) {
		newBuf = make([][]byte, len(p.readers))
	} else {
		for i := range newBuf {
			newBuf[i] = newBuf[i][:0]
		}
	}
	var newBufLK sync.RWMutex

	if p.offset+p.shardSize > p.shardFileSize {
		p.shardSize = p.shardFileSize - p.offset
	}
	if p.shardSize == 0 {
		return newBuf, nil
	}

		return
	}

	// Create new buf and copy data over.
	newBuf := make([]T, len(q.buf)*2)
	pivot := q.start % len(q.buf)
	first, last := q.buf[pivot:], q.buf[:pivot]
	copy(newBuf[:len(first)], first)
	copy(newBuf[len(first):], last)

	// Update the queue state.
	q.start = 0
	q.end = len(q.buf)
	q.buf = newBuf
}

// pop removes an event from the front of the queue. If the

	// Convert to slice.
	dirs = dirs[:0]
	for dir := range foundDirs {
		dirs = append(dirs, dir)
	}
	if xl.data.remove(dirs...) {
		newBuf, err := xl.AppendTo(metaDataPoolGet())
		if err == nil {
			defer metaDataPoolPut(newBuf)
			return s.WriteAll(ctx, volume, pathJoin(path, xlStorageFormatFile), buf)
		}
	}
	return nil
}

func convertAccessError(err, permErr error) error {

var (
	errorTag = monitoring.CreateLabel(errorlabel)

	csrCounts = monitoring.NewSum(
		"citadel_server_csr_count",
		"The number of CSRs received by Citadel server.",
	)

	authnErrorCounts = monitoring.NewSum(
		"citadel_server_authentication_failure_count",
		"The number of authentication failures.",
	)

	csrParsingErrorCounts = monitoring.NewSum(
		"citadel_server_csr_parsing_err_count",

	nodeTag = monitoring.CreateLabel("node")
	typeTag = monitoring.CreateLabel("type")

	TotalXDSInternalErrors = monitoring.NewSum(
		"pilot_total_xds_internal_errors",
		"Total number of internal XDS errors in pilot.",
	)

	ExpiredNonce = monitoring.NewSum(
		"pilot_xds_expired_nonce",
		"Total number of XDS requests with an expired nonce.",
	)

		[]float64{.1, .5, 1, 3, 5, 10, 20, 30},
	)

	pushContextErrors = monitoring.NewSum(
		"pilot_xds_push_context_errors",
		"Number of errors (timeouts) initiating push context.",
	)

	inboundUpdates = monitoring.NewSum(
		"pilot_inbound_updates",
		"Total number of updates received by pilot.",
	)

	pilotSDSCertificateErrors = monitoring.NewSum(
		"pilot_sds_certificate_errors_total",

	// Find the bucket currently containing trackMass by computing
	// the cumulative sum.
	sum := 0.0
	for i, val := range d.hist[:] {
		newSum := sum + val
		if newSum > mass {
			// mass falls in bucket i.
			d.trackBucket = i
			d.trackSum = sum
			return
		}
		sum = newSum
	}
	d.trackBucket = len(d.hist)
	d.trackSum = sum
}

// approxInvCumulativeSum is like invCumulativeSum, but specifically

	return ValAndOff(int64(val)<<32 + int64(uint32(off)))
}

func (x ValAndOff) canAdd32(off int32) bool {
	newoff := x.Off64() + int64(off)
	return newoff == int64(int32(newoff))
}
func (x ValAndOff) canAdd64(off int64) bool {
	newoff := x.Off64() + off
	return newoff == int64(int32(newoff))
}

func (x ValAndOff) addOffset32(off int32) ValAndOff {
	if !x.canAdd32(off) {

		isUnblocked := c.newRef.BlockOwnerDeletion == nil || (c.newRef.BlockOwnerDeletion != nil && !*c.newRef.BlockOwnerDeletion)
		if wasBlocked && isUnblocked {
			node, found := gb.uidToNode.Read(c.newRef.UID)
			if !found {
				logger.V(5).Info("cannot find uid in uidToNode", "uid", c.newRef.UID)
				continue
			}
			gb.attemptToDelete.Add(node)
		}
	}
}

)

var (
	autoRegistrationSuccess = monitoring.NewSum(
		"auto_registration_success_total",
		"Total number of successful auto registrations.",
	)

	autoRegistrationUpdates = monitoring.NewSum(
		"auto_registration_updates_total",
		"Total number of auto registration updates.",
	)

	autoRegistrationUnregistrations = monitoring.NewSum(
		"auto_registration_unregister_total",