rebase: update replaced k8s.io modules to v0.33.0

Signed-off-by: Niels de Vos <ndevos@ibm.com>

e2e/vendor/github.com/opencontainers/cgroups/fs2/psi.go

@@ -0,0 +1,89 @@
+package fs2
+
+import (
+	"bufio"
+	"errors"
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+
+	"golang.org/x/sys/unix"
+
+	"github.com/opencontainers/cgroups"
+)
+
+func statPSI(dirPath string, file string) (*cgroups.PSIStats, error) {
+	f, err := cgroups.OpenFile(dirPath, file, os.O_RDONLY)
+	if err != nil {
+		if errors.Is(err, os.ErrNotExist) {
+			// Kernel < 4.20, or CONFIG_PSI is not set,
+			// or PSI stats are turned off for the cgroup
+			// ("echo 0 > cgroup.pressure", kernel >= 6.1).
+			return nil, nil
+		}
+		return nil, err
+	}
+	defer f.Close()
+
+	var psistats cgroups.PSIStats
+	sc := bufio.NewScanner(f)
+	for sc.Scan() {
+		parts := strings.Fields(sc.Text())
+		var pv *cgroups.PSIData
+		switch parts[0] {
+		case "some":
+			pv = &psistats.Some
+		case "full":
+			pv = &psistats.Full
+		}
+		if pv != nil {
+			*pv, err = parsePSIData(parts[1:])
+			if err != nil {
+				return nil, &parseError{Path: dirPath, File: file, Err: err}
+			}
+		}
+	}
+	if err := sc.Err(); err != nil {
+		if errors.Is(err, unix.ENOTSUP) {
+			// Some kernels (e.g. CS9) may return ENOTSUP on read
+			// if psi=1 kernel cmdline parameter is required.
+			return nil, nil
+		}
+		return nil, &parseError{Path: dirPath, File: file, Err: err}
+	}
+	return &psistats, nil
+}
+
+func parsePSIData(psi []string) (cgroups.PSIData, error) {
+	data := cgroups.PSIData{}
+	for _, f := range psi {
+		key, val, ok := strings.Cut(f, "=")
+		if !ok {
+			return data, fmt.Errorf("invalid psi data: %q", f)
+		}
+		var pv *float64
+		switch key {
+		case "avg10":
+			pv = &data.Avg10
+		case "avg60":
+			pv = &data.Avg60
+		case "avg300":
+			pv = &data.Avg300
+		case "total":
+			v, err := strconv.ParseUint(val, 10, 64)
+			if err != nil {
+				return data, fmt.Errorf("invalid %s PSI value: %w", key, err)
+			}
+			data.Total = v
+		}
+		if pv != nil {
+			v, err := strconv.ParseFloat(val, 64)
+			if err != nil {
+				return data, fmt.Errorf("invalid %s PSI value: %w", key, err)
+			}
+			*pv = v
+		}
+	}
+	return data, nil
+}