rebase: bump k8s.io/klog/v2 from 2.80.1 to 2.90.0

Bumps [k8s.io/klog/v2](https://github.com/kubernetes/klog) from 2.80.1 to 2.90.0.
- [Release notes](https://github.com/kubernetes/klog/releases)
- [Changelog](https://github.com/kubernetes/klog/blob/main/RELEASE.md)
- [Commits](https://github.com/kubernetes/klog/compare/v2.80.1...v2.90.0)

---
updated-dependencies:
- dependency-name: k8s.io/klog/v2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -36,7 +36,7 @@ require (
 	k8s.io/apimachinery v0.26.1
 	k8s.io/client-go v12.0.0+incompatible
 	k8s.io/cloud-provider v0.26.1
-	k8s.io/klog/v2 v2.80.1
+	k8s.io/klog/v2 v2.90.0
 	//
 	// when updating k8s.io/kubernetes, make sure to update the replace section too
 	//

go.sum

@@ -1708,8 +1708,9 @@ k8s.io/klog/v2 v2.0.0/go.mod h1:PBfzABfn139FHAV07az/IF9Wp1bkk3vpT2XSJ76fSDE=
 k8s.io/klog/v2 v2.2.0/go.mod h1:Od+F08eJP+W3HUb4pSrPpgp9DGU4GzlpG/TmITuYh/Y=
 k8s.io/klog/v2 v2.4.0/go.mod h1:Od+F08eJP+W3HUb4pSrPpgp9DGU4GzlpG/TmITuYh/Y=
 k8s.io/klog/v2 v2.9.0/go.mod h1:hy9LJ/NvuK+iVyP4Ehqva4HxZG/oXyIS3n3Jmire4Ec=
-k8s.io/klog/v2 v2.80.1 h1:atnLQ121W371wYYFawwYx1aEY2eUfs4l3J72wtgAwV4=
 k8s.io/klog/v2 v2.80.1/go.mod h1:y1WjHnz7Dj687irZUWR/WLkLc5N1YHtjLdmgWjndZn0=
+k8s.io/klog/v2 v2.90.0 h1:VkTxIV/FjRXn1fgNNcKGM8cfmL1Z33ZjXRTVxKCoF5M=
+k8s.io/klog/v2 v2.90.0/go.mod h1:y1WjHnz7Dj687irZUWR/WLkLc5N1YHtjLdmgWjndZn0=
 k8s.io/kms v0.26.1/go.mod h1:ReC1IEGuxgfN+PDCIpR6w8+XMmDE7uJhxcCwMZFdIYc=
 k8s.io/kube-openapi v0.0.0-20180731170545-e3762e86a74c/go.mod h1:BXM9ceUBTj2QnfH2MK1odQs778ajze1RxcmP6S8RVVc=
 k8s.io/kube-openapi v0.0.0-20221012153701-172d655c2280 h1:+70TFaan3hfJzs+7VK2o+OGxg8HsuBr/5f6tVAjDu6E=

vendor/k8s.io/klog/v2/internal/buffer/buffer.go

@@ -40,44 +40,22 @@ type Buffer struct {
 	next *Buffer
 }
 
-// Buffers manages the reuse of individual buffer instances. It is thread-safe.
-type Buffers struct {
-	// mu protects the free list. It is separate from the main mutex
-	// so buffers can be grabbed and printed to without holding the main lock,
-	// for better parallelization.
-	mu sync.Mutex
-
-	// freeList is a list of byte buffers, maintained under mu.
-	freeList *Buffer
+var buffers = sync.Pool{
+	New: func() interface{} {
+		return new(Buffer)
+	},
 }
 
 // GetBuffer returns a new, ready-to-use buffer.
-func (bl *Buffers) GetBuffer() *Buffer {
-	bl.mu.Lock()
-	b := bl.freeList
-	if b != nil {
-		bl.freeList = b.next
-	}
-	bl.mu.Unlock()
-	if b == nil {
-		b = new(Buffer)
-	} else {
-		b.next = nil
+func GetBuffer() *Buffer {
+	b := buffers.Get().(*Buffer)
 	b.Reset()
-	}
 	return b
 }
 
 // PutBuffer returns a buffer to the free list.
-func (bl *Buffers) PutBuffer(b *Buffer) {
-	if b.Len() >= 256 {
-		// Let big buffers die a natural death.
-		return
-	}
-	bl.mu.Lock()
-	b.next = bl.freeList
-	bl.freeList = b
-	bl.mu.Unlock()
+func PutBuffer(b *Buffer) {
+	buffers.Put(b)
 }
 
 // Some custom tiny helper functions to print the log header efficiently.

vendor/k8s.io/klog/v2/internal/serialize/keyvalues.go

@@ -24,6 +24,10 @@ import (
 	"github.com/go-logr/logr"
 )
 
+type textWriter interface {
+	WriteText(*bytes.Buffer)
+}
+
 // WithValues implements LogSink.WithValues. The old key/value pairs are
 // assumed to be well-formed, the new ones are checked and padded if
 // necessary. It returns a new slice.
@@ -91,6 +95,51 @@ func MergeKVs(first, second []interface{}) []interface{} {
 	return merged
 }
 
+// MergeKVsInto is a variant of MergeKVs which directly formats the key/value
+// pairs into a buffer.
+func MergeAndFormatKVs(b *bytes.Buffer, first, second []interface{}) {
+	if len(first) == 0 && len(second) == 0 {
+		// Nothing to do at all.
+		return
+	}
+
+	if len(first) == 0 && len(second)%2 == 0 {
+		// Nothing to be overridden, second slice is well-formed
+		// and can be used directly.
+		for i := 0; i < len(second); i += 2 {
+			KVFormat(b, second[i], second[i+1])
+		}
+		return
+	}
+
+	// Determine which keys are in the second slice so that we can skip
+	// them when iterating over the first one. The code intentionally
+	// favors performance over completeness: we assume that keys are string
+	// constants and thus compare equal when the string values are equal. A
+	// string constant being overridden by, for example, a fmt.Stringer is
+	// not handled.
+	overrides := map[interface{}]bool{}
+	for i := 0; i < len(second); i += 2 {
+		overrides[second[i]] = true
+	}
+	for i := 0; i < len(first); i += 2 {
+		key := first[i]
+		if overrides[key] {
+			continue
+		}
+		KVFormat(b, key, first[i+1])
+	}
+	// Round down.
+	l := len(second)
+	l = l / 2 * 2
+	for i := 1; i < l; i += 2 {
+		KVFormat(b, second[i-1], second[i])
+	}
+	if len(second)%2 == 1 {
+		KVFormat(b, second[len(second)-1], missingValue)
+	}
+}
+
 const missingValue = "(MISSING)"
 
 // KVListFormat serializes all key/value pairs into the provided buffer.
@@ -104,6 +153,13 @@ func KVListFormat(b *bytes.Buffer, keysAndValues ...interface{}) {
 		} else {
 			v = missingValue
 		}
+		KVFormat(b, k, v)
+	}
+}
+
+// KVFormat serializes one key/value pair into the provided buffer.
+// A space gets inserted before the pair.
+func KVFormat(b *bytes.Buffer, k, v interface{}) {
 	b.WriteByte(' ')
 	// Keys are assumed to be well-formed according to
 	// https://github.com/kubernetes/community/blob/master/contributors/devel/sig-instrumentation/migration-to-structured-logging.md#name-arguments
@@ -123,6 +179,8 @@ func KVListFormat(b *bytes.Buffer, keysAndValues ...interface{}) {
 	// than plain strings
 	// (https://github.com/kubernetes/kubernetes/pull/106594#issuecomment-975526235).
 	switch v := v.(type) {
+	case textWriter:
+		writeTextWriterValue(b, v)
 	case fmt.Stringer:
 		writeStringValue(b, true, StringerToString(v))
 	case string:
@@ -164,7 +222,6 @@ func KVListFormat(b *bytes.Buffer, keysAndValues ...interface{}) {
 	default:
 		writeStringValue(b, false, fmt.Sprintf("%+v", v))
 	}
-	}
 }
 
 // StringerToString converts a Stringer to a string,
@@ -203,6 +260,16 @@ func ErrorToString(err error) (ret string) {
 	return
 }
 
+func writeTextWriterValue(b *bytes.Buffer, v textWriter) {
+	b.WriteRune('=')
+	defer func() {
+		if err := recover(); err != nil {
+			fmt.Fprintf(b, `"<panic: %s>"`, err)
+		}
+	}()
+	v.WriteText(b)
+}
+
 func writeStringValue(b *bytes.Buffer, quote bool, v string) {
 	data := []byte(v)
 	index := bytes.IndexByte(data, '\n')

vendor/k8s.io/klog/v2/k8s_references.go

@@ -17,8 +17,10 @@ limitations under the License.
 package klog
 
 import (
+	"bytes"
 	"fmt"
 	"reflect"
+	"strings"
 
 	"github.com/go-logr/logr"
 )
@@ -31,11 +33,30 @@ type ObjectRef struct {
 
 func (ref ObjectRef) String() string {
 	if ref.Namespace != "" {
-		return fmt.Sprintf("%s/%s", ref.Namespace, ref.Name)
+		var builder strings.Builder
+		builder.Grow(len(ref.Namespace) + len(ref.Name) + 1)
+		builder.WriteString(ref.Namespace)
+		builder.WriteRune('/')
+		builder.WriteString(ref.Name)
+		return builder.String()
 	}
 	return ref.Name
 }
 
+func (ref ObjectRef) WriteText(out *bytes.Buffer) {
+	out.WriteRune('"')
+	ref.writeUnquoted(out)
+	out.WriteRune('"')
+}
+
+func (ref ObjectRef) writeUnquoted(out *bytes.Buffer) {
+	if ref.Namespace != "" {
+		out.WriteString(ref.Namespace)
+		out.WriteRune('/')
+	}
+	out.WriteString(ref.Name)
+}
+
 // MarshalLog ensures that loggers with support for structured output will log
 // as a struct by removing the String method via a custom type.
 func (ref ObjectRef) MarshalLog() interface{} {
@@ -117,31 +138,31 @@ var _ fmt.Stringer = kobjSlice{}
 var _ logr.Marshaler = kobjSlice{}
 
 func (ks kobjSlice) String() string {
-	objectRefs, err := ks.process()
-	if err != nil {
-		return err.Error()
+	objectRefs, errStr := ks.process()
+	if errStr != "" {
+		return errStr
 	}
 	return fmt.Sprintf("%v", objectRefs)
 }
 
 func (ks kobjSlice) MarshalLog() interface{} {
-	objectRefs, err := ks.process()
-	if err != nil {
-		return err.Error()
+	objectRefs, errStr := ks.process()
+	if errStr != "" {
+		return errStr
 	}
 	return objectRefs
 }
 
-func (ks kobjSlice) process() ([]interface{}, error) {
+func (ks kobjSlice) process() (objs []interface{}, err string) {
 	s := reflect.ValueOf(ks.arg)
 	switch s.Kind() {
 	case reflect.Invalid:
 		// nil parameter, print as nil.
-		return nil, nil
+		return nil, ""
 	case reflect.Slice:
 		// Okay, handle below.
 	default:
-		return nil, fmt.Errorf("<KObjSlice needs a slice, got type %T>", ks.arg)
+		return nil, fmt.Sprintf("<KObjSlice needs a slice, got type %T>", ks.arg)
 	}
 	objectRefs := make([]interface{}, 0, s.Len())
 	for i := 0; i < s.Len(); i++ {
@@ -151,8 +172,41 @@ func (ks kobjSlice) process() ([]interface{}, error) {
 		} else if v, ok := item.(KMetadata); ok {
 			objectRefs = append(objectRefs, KObj(v))
 		} else {
-			return nil, fmt.Errorf("<KObjSlice needs a slice of values implementing KMetadata, got type %T>", item)
+			return nil, fmt.Sprintf("<KObjSlice needs a slice of values implementing KMetadata, got type %T>", item)
+		}
+	}
+	return objectRefs, ""
+}
+
+var nilToken = []byte("<nil>")
+
+func (ks kobjSlice) WriteText(out *bytes.Buffer) {
+	s := reflect.ValueOf(ks.arg)
+	switch s.Kind() {
+	case reflect.Invalid:
+		// nil parameter, print as empty slice.
+		out.WriteString("[]")
+		return
+	case reflect.Slice:
+		// Okay, handle below.
+	default:
+		fmt.Fprintf(out, `"<KObjSlice needs a slice, got type %T>"`, ks.arg)
+		return
+	}
+	out.Write([]byte{'['})
+	defer out.Write([]byte{']'})
+	for i := 0; i < s.Len(); i++ {
+		if i > 0 {
+			out.Write([]byte{' '})
+		}
+		item := s.Index(i).Interface()
+		if item == nil {
+			out.Write(nilToken)
+		} else if v, ok := item.(KMetadata); ok {
+			KObj(v).writeUnquoted(out)
+		} else {
+			fmt.Fprintf(out, "<KObjSlice needs a slice of values implementing KMetadata, got type %T>", item)
+			return
 		}
 	}
-	return objectRefs, nil
 }

vendor/k8s.io/klog/v2/klog.go

@@ -532,11 +532,6 @@ func (s settings) deepCopy() settings {
 type loggingT struct {
 	settings
 
-	// bufferCache maintains the free list. It uses its own mutex
-	// so buffers can be grabbed and printed to without holding the main lock,
-	// for better parallelization.
-	bufferCache buffer.Buffers
-
 	// flushD holds a flushDaemon that frequently flushes log file buffers.
 	// Uses its own mutex.
 	flushD *flushDaemon
@@ -664,7 +659,7 @@ func (l *loggingT) header(s severity.Severity, depth int) (*buffer.Buffer, strin
 
 // formatHeader formats a log header using the provided file name and line number.
 func (l *loggingT) formatHeader(s severity.Severity, file string, line int) *buffer.Buffer {
-	buf := l.bufferCache.GetBuffer()
+	buf := buffer.GetBuffer()
 	if l.skipHeaders {
 		return buf
 	}
@@ -682,8 +677,8 @@ func (l *loggingT) printlnDepth(s severity.Severity, logger *logr.Logger, filter
 	// if logger is set, we clear the generated header as we rely on the backing
 	// logger implementation to print headers
 	if logger != nil {
-		l.bufferCache.PutBuffer(buf)
-		buf = l.bufferCache.GetBuffer()
+		buffer.PutBuffer(buf)
+		buf = buffer.GetBuffer()
 	}
 	if filter != nil {
 		args = filter.Filter(args)
@@ -701,8 +696,8 @@ func (l *loggingT) printDepth(s severity.Severity, logger *logr.Logger, filter L
 	// if logr is set, we clear the generated header as we rely on the backing
 	// logr implementation to print headers
 	if logger != nil {
-		l.bufferCache.PutBuffer(buf)
-		buf = l.bufferCache.GetBuffer()
+		buffer.PutBuffer(buf)
+		buf = buffer.GetBuffer()
 	}
 	if filter != nil {
 		args = filter.Filter(args)
@@ -723,8 +718,8 @@ func (l *loggingT) printfDepth(s severity.Severity, logger *logr.Logger, filter
 	// if logr is set, we clear the generated header as we rely on the backing
 	// logr implementation to print headers
 	if logger != nil {
-		l.bufferCache.PutBuffer(buf)
-		buf = l.bufferCache.GetBuffer()
+		buffer.PutBuffer(buf)
+		buf = buffer.GetBuffer()
 	}
 	if filter != nil {
 		format, args = filter.FilterF(format, args)
@@ -744,8 +739,8 @@ func (l *loggingT) printWithFileLine(s severity.Severity, logger *logr.Logger, f
 	// if logr is set, we clear the generated header as we rely on the backing
 	// logr implementation to print headers
 	if logger != nil {
-		l.bufferCache.PutBuffer(buf)
-		buf = l.bufferCache.GetBuffer()
+		buffer.PutBuffer(buf)
+		buf = buffer.GetBuffer()
 	}
 	if filter != nil {
 		args = filter.Filter(args)
@@ -785,7 +780,7 @@ func (l *loggingT) infoS(logger *logr.Logger, filter LogFilter, depth int, msg s
 // set log severity by s
 func (l *loggingT) printS(err error, s severity.Severity, depth int, msg string, keysAndValues ...interface{}) {
 	// Only create a new buffer if we don't have one cached.
-	b := l.bufferCache.GetBuffer()
+	b := buffer.GetBuffer()
 	// The message is always quoted, even if it contains line breaks.
 	// If developers want multi-line output, they should use a small, fixed
 	// message and put the multi-line output into a value.
@@ -796,7 +791,7 @@ func (l *loggingT) printS(err error, s severity.Severity, depth int, msg string,
 	serialize.KVListFormat(&b.Buffer, keysAndValues...)
 	l.printDepth(s, logging.logger, nil, depth+1, &b.Buffer)
 	// Make the buffer available for reuse.
-	l.bufferCache.PutBuffer(b)
+	buffer.PutBuffer(b)
 }
 
 // redirectBuffer is used to set an alternate destination for the logs
@@ -948,7 +943,7 @@ func (l *loggingT) output(s severity.Severity, log *logr.Logger, buf *buffer.Buf
 		timeoutFlush(ExitFlushTimeout)
 		OsExit(255) // C++ uses -1, which is silly because it's anded with 255 anyway.
 	}
-	l.bufferCache.PutBuffer(buf)
+	buffer.PutBuffer(buf)
 
 	if stats := severityStats[s]; stats != nil {
 		atomic.AddInt64(&stats.lines, 1)
@@ -1313,6 +1308,13 @@ func newVerbose(level Level, b bool) Verbose {
 // less than or equal to the value of the -vmodule pattern matching the source file
 // containing the call.
 func V(level Level) Verbose {
+	return VDepth(1, level)
+}
+
+// VDepth is a variant of V that accepts a number of stack frames that will be
+// skipped when checking the -vmodule patterns. VDepth(0) is equivalent to
+// V().
+func VDepth(depth int, level Level) Verbose {
 	// This function tries hard to be cheap unless there's work to do.
 	// The fast path is two atomic loads and compares.
 
@@ -1329,7 +1331,7 @@ func V(level Level) Verbose {
 		// but if V logging is enabled we're slow anyway.
 		logging.mu.Lock()
 		defer logging.mu.Unlock()
-		if runtime.Callers(2, logging.pcs[:]) == 0 {
+		if runtime.Callers(2+depth, logging.pcs[:]) == 0 {
 			return newVerbose(level, false)
 		}
 		// runtime.Callers returns "return PCs", but we want

vendor/k8s.io/klog/v2/klogr.go

@@ -42,19 +42,21 @@ func (l *klogger) Init(info logr.RuntimeInfo) {
 	l.callDepth += info.CallDepth
 }
 
-func (l klogger) Info(level int, msg string, kvList ...interface{}) {
+func (l *klogger) Info(level int, msg string, kvList ...interface{}) {
 	merged := serialize.MergeKVs(l.values, kvList)
 	if l.prefix != "" {
 		msg = l.prefix + ": " + msg
 	}
-	V(Level(level)).InfoSDepth(l.callDepth+1, msg, merged...)
+	// Skip this function.
+	VDepth(l.callDepth+1, Level(level)).InfoSDepth(l.callDepth+1, msg, merged...)
 }
 
-func (l klogger) Enabled(level int) bool {
-	return V(Level(level)).Enabled()
+func (l *klogger) Enabled(level int) bool {
+	// Skip this function and logr.Logger.Info where Enabled is called.
+	return VDepth(l.callDepth+2, Level(level)).Enabled()
 }
 
-func (l klogger) Error(err error, msg string, kvList ...interface{}) {
+func (l *klogger) Error(err error, msg string, kvList ...interface{}) {
 	merged := serialize.MergeKVs(l.values, kvList)
 	if l.prefix != "" {
 		msg = l.prefix + ": " + msg

vendor/modules.txt

@@ -1242,7 +1242,7 @@ k8s.io/component-helpers/node/util/sysctl
 k8s.io/component-helpers/scheduling/corev1
 k8s.io/component-helpers/scheduling/corev1/nodeaffinity
 k8s.io/component-helpers/storage/volume
-# k8s.io/klog/v2 v2.80.1
+# k8s.io/klog/v2 v2.90.0
 ## explicit; go 1.13
 k8s.io/klog/v2
 k8s.io/klog/v2/internal/buffer