Merge pull request #1751 from prometheus/superq/release-1.0.1

Release 1.0.1
2024-11-09 23:24:09 -08:00 · 2020-06-16 14:42:12 +02:00 · 2020-06-16 14:42:12 +02:00 · 3715be6ae8
parent b9c96706a7 c46e7c5d65
commit 3715be6ae8
71 changed files with 2816 additions and 301 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -5,6 +5,13 @@
 * [ENHANCEMENT]
 * [BUGFIX]

+## 1.0.1 / 2020-06-15
+
+* [BUGFIX] filesystem_freebsd: Fix label values #1728
+* [BUGFIX] Update prometheus/procfs to fix log noise #1735
+* [BUGFIX] Fix build tags for collectors #1745
+* [BUGFIX] Handle no data from powersupplyclass #1747, #1749
+
 ## 1.0.0 / 2020-05-25

 ### **Breaking changes**
--- a/2
+++ b/2
@ -1 +1 @@
-1.0.0
+1.0.1
--- a/collector/drbd_linux.go
+++ b/collector/drbd_linux.go
@ -11,6 +11,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.

+// +build !nodrbd
+
 package collector

 import (
--- a/collector/filesystem_freebsd.go
+++ b/collector/filesystem_freebsd.go
@ -40,14 +40,14 @@ func (c *filesystemCollector) GetStats() ([]filesystemStats, error) {
 	}
 	stats := []filesystemStats{}
 	for _, fs := range buf {
-		mountpoint := string(fs.Mntonname[:])
+		mountpoint := bytesToString(fs.Mntonname[:])
 		if c.ignoredMountPointsPattern.MatchString(mountpoint) {
 			level.Debug(c.logger).Log("msg", "Ignoring mount point", "mountpoint", mountpoint)
 			continue
 		}

-		device := string(fs.Mntfromname[:])
-		fstype := string(fs.Fstypename[:])
+		device := bytesToString(fs.Mntfromname[:])
+		fstype := bytesToString(fs.Fstypename[:])
 		if c.ignoredFSTypesPattern.MatchString(fstype) {
 			level.Debug(c.logger).Log("msg", "Ignoring fs type", "type", fstype)
 			continue
--- a/collector/filesystem_linux_test.go
+++ b/collector/filesystem_linux_test.go
@ -11,8 +11,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.

-// +build !nofilesystem
-
 package collector

 import (
--- a/collector/fixtures/sys.ttar
+++ b/collector/fixtures/sys.ttar
@ -1756,6 +1756,17 @@ Lines: 1
 0
 Mode: 644
 # ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: sys/devices/pci0000:00/0000:00:0d.0/ata4/host3/target3:0:0/3:0:0:0/block/sdb/bcache/writeback_rate_debug
+Lines: 7
+rate:           1.1M/sec
+dirty:          20.4G
+target:         20.4G
+proportional:   427.5k
+integral:       790.0k
+change:         321.5k/sec
+next io:        17ms
+Mode: 644
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 Directory: sys/devices/pci0000:00/0000:00:0d.0/ata5
 Mode: 755
 # ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
--- a/collector/helper.go
+++ b/collector/helper.go
@ -14,6 +14,7 @@
 package collector

 import (
+	"bytes"
 	"io/ioutil"
 	"strconv"
 	"strings"
@ -30,3 +31,16 @@ func readUintFromFile(path string) (uint64, error) {
 	}
 	return value, nil
 }
+
+// Take a []byte{} and return a string based on null termination.
+// This is useful for situations where the OS has returned a null terminated
+// string to use.
+// If this function happens to receive a byteArray that contains no nulls, we
+// simply convert the array to a string with no bounding.
+func bytesToString(byteArray []byte) string {
+	n := bytes.IndexByte(byteArray, 0)
+	if n < 0 {
+		return string(byteArray)
+	}
+	return string(byteArray[:n])
+}
--- a/collector/helper_test.go
+++ b/collector/helper_test.go
@ -0,0 +1,63 @@
+// Copyright 2020 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package collector
+
+import (
+	"testing"
+)
+
+func TestBytesToString(t *testing.T) {
+	tests := []struct {
+		name     string
+		b        []byte
+		expected string
+	}{
+		{
+			"Single null byte",
+			[]byte{0},
+			"",
+		},
+		{
+			"Empty byte array",
+			[]byte{},
+			"",
+		},
+		{
+			"Not null terminated",
+			[]byte{65, 66, 67},
+			"ABC",
+		},
+		{
+			"Null randomly in array",
+			[]byte{65, 66, 67, 0, 65, 0, 65},
+			"ABC",
+		},
+		{
+			"Array starts with null and contains other valid bytes",
+			[]byte{0, 65, 66, 67, 0},
+			"",
+		},
+	}
+
+	for _, tt := range tests {
+		name := tt.name
+		b := tt.b
+		result := bytesToString(b)
+		expected := tt.expected
+
+		if result != expected {
+			t.Errorf("bytesToString(%#v): Name: %s, expected %#v, got %#v)", b, name, expected, result)
+		}
+	}
+}
--- a/collector/kvm_bsd.go
+++ b/collector/kvm_bsd.go
@ -11,7 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.

-// +build !nomeminfo
+// +build !nokvm
 // +build freebsd dragonfly

 package collector
--- a/collector/mountstats_linux.go
+++ b/collector/mountstats_linux.go
@ -11,6 +11,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.

+// +build !nomountstats
+
 package collector

 import (
--- a/collector/nfs_linux.go
+++ b/collector/nfs_linux.go
@ -11,6 +11,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.

+// +build !nonfs
+
 package collector

 import (
--- a/collector/nfsd_linux.go
+++ b/collector/nfsd_linux.go
@ -11,6 +11,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.

+// +build !nonfsd
+
 package collector

 import (
--- a/collector/perf_linux.go
+++ b/collector/perf_linux.go
@ -11,6 +11,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.

+// +build !noperf
+
 package collector

 import (
--- a/collector/powersupplyclass.go
+++ b/collector/powersupplyclass.go
@ -17,7 +17,9 @@
 package collector

 import (
+	"errors"
 	"fmt"
+	"os"
 	"regexp"

 	"github.com/go-kit/kit/log"
@ -54,6 +56,9 @@ func NewPowerSupplyClassCollector(logger log.Logger) (Collector, error) {
 func (c *powerSupplyClassCollector) Update(ch chan<- prometheus.Metric) error {
 	powerSupplyClass, err := getPowerSupplyClassInfo(c.ignoredPattern)
 	if err != nil {
+		if errors.Is(err, os.ErrNotExist) {
+			return ErrNoData
+		}
 		return fmt.Errorf("could not get power_supply class info: %s", err)
 	}
 	for _, powerSupply := range powerSupplyClass {
@ -184,7 +189,7 @@ func getPowerSupplyClassInfo(ignore *regexp.Regexp) (sysfs.PowerSupplyClass, err
 	powerSupplyClass, err := fs.PowerSupplyClass()

 	if err != nil {
-		return powerSupplyClass, fmt.Errorf("error obtaining power_supply class info: %s", err)
+		return powerSupplyClass, fmt.Errorf("error obtaining power_supply class info: %w", err)
 	}

 	for device := range powerSupplyClass {
--- a/collector/schedstat_linux.go
+++ b/collector/schedstat_linux.go
@ -11,6 +11,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.

+// +build !noshedstat
+
 package collector

 import (
--- a/collector/sysctl_bsd.go
+++ b/collector/sysctl_bsd.go
@ -12,7 +12,7 @@
 // limitations under the License.

 // +build freebsd dragonfly openbsd netbsd darwin
-// +build !nomeminfo
+// +build cgo

 package collector

--- a/collector/wifi_linux.go
+++ b/collector/wifi_linux.go
@ -11,6 +11,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.

+// +build !nowifi
+
 package collector

 import (
--- a/collector/xfs_linux.go
+++ b/collector/xfs_linux.go
@ -11,6 +11,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.

+// +build !noxfs
+
 package collector

 import (
--- a/collector/zfs_freebsd.go
+++ b/collector/zfs_freebsd.go
@ -11,6 +11,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.

+// +build !nozfs
+
 package collector

 import (
--- a/collector/zfs_linux.go
+++ b/collector/zfs_linux.go
@ -11,6 +11,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.

+// +build !nozfs
+
 package collector

 import (
--- a/collector/zfs_solaris.go
+++ b/collector/zfs_solaris.go
@ -12,6 +12,7 @@
 // limitations under the License.

 // +build solaris
+// +build !nozfs

 package collector

--- a/go.mod
+++ b/go.mod
@ -20,7 +20,7 @@ require (
 	github.com/prometheus/client_golang v1.6.0
 	github.com/prometheus/client_model v0.2.0
 	github.com/prometheus/common v0.10.0
-	github.com/prometheus/procfs v0.0.11
+	github.com/prometheus/procfs v0.1.3
 	github.com/siebenmann/go-kstat v0.0.0-20200303194639-4e8294f9e9d5
 	github.com/soundcloud/go-runit v0.0.0-20150630195641-06ad41a06c4a
 	go.uber.org/multierr v1.5.0 // indirect
@ -28,7 +28,7 @@ require (
 	golang.org/x/lint v0.0.0-20200302205851-738671d3881b // indirect
 	golang.org/x/net v0.0.0-20200513185701-a91f0712d120 // indirect
 	golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a // indirect
-	golang.org/x/sys v0.0.0-20200523222454-059865788121
+	golang.org/x/sys v0.0.0-20200602225109-6fdc65e7d980
 	golang.org/x/tools v0.0.0-20200513201620-d5fe73897c97 // indirect
 	gopkg.in/alecthomas/kingpin.v2 v2.2.6
 	gopkg.in/yaml.v2 v2.3.0
--- a/go.sum
+++ b/go.sum
@ -289,6 +289,8 @@ github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsT
 github.com/prometheus/procfs v0.0.8/go.mod h1:7Qr8sr6344vo1JqZ6HhLceV9o3AJ1Ff+GxbHq6oeK9A=
 github.com/prometheus/procfs v0.0.11 h1:DhHlBtkHWPYi8O2y31JkK0TF+DGM+51OopZjH/Ia5qI=
 github.com/prometheus/procfs v0.0.11/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
+github.com/prometheus/procfs v0.1.3 h1:F0+tqvhOksq22sc6iCHF5WGlWjdwj92p0udFh1VFBS8=
+github.com/prometheus/procfs v0.1.3/go.mod h1:lV6e/gmhEcM9IjHGsFOCxxuZ+z1YqCvr4OA4YeYWdaU=
 github.com/rcrowley/go-metrics v0.0.0-20181016184325-3113b8401b8a/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
 github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=
 github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
@ -432,8 +434,8 @@ golang.org/x/sys v0.0.0-20200106162015-b016eb3dc98e/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200420163511-1957bb5e6d1f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200523222454-059865788121 h1:rITEj+UZHYC927n8GT97eC3zrpzXdb/voyeOuVKS46o=
-golang.org/x/sys v0.0.0-20200523222454-059865788121/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200602225109-6fdc65e7d980 h1:OjiUf46hAmXblsZdnoSXsEUSKU8r1UEzcL5RVZ4gO9Y=
+golang.org/x/sys v0.0.0-20200602225109-6fdc65e7d980/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
--- a/vendor/github.com/prometheus/procfs/Makefile.common
+++ b/vendor/github.com/prometheus/procfs/Makefile.common
@ -150,6 +150,17 @@ else
 	$(GO) get $(GOOPTS) -t ./...
 endif

+.PHONY: update-go-deps
+update-go-deps:
+	@echo ">> updating Go dependencies"
+	@for m in $$($(GO) list -mod=readonly -m -f '{{ if and (not .Indirect) (not .Main)}}{{.Path}}{{end}}' all); do \
+		$(GO) get $$m; \
+	done
+	GO111MODULE=$(GO111MODULE) $(GO) mod tidy
+ifneq (,$(wildcard vendor))
+	GO111MODULE=$(GO111MODULE) $(GO) mod vendor
+endif
+
 .PHONY: common-test-short
 common-test-short: $(GOTEST_DIR)
 	@echo ">> running short tests"
--- a/vendor/github.com/prometheus/procfs/bcache/bcache.go
+++ b/vendor/github.com/prometheus/procfs/bcache/bcache.go
@ -43,10 +43,11 @@ type BcacheStats struct { // nolint:golint

 // BdevStats contains statistics for one backing device.
 type BdevStats struct {
-	Name      string
-	DirtyData uint64
-	FiveMin   PeriodStats
-	Total     PeriodStats
+	Name               string
+	DirtyData          uint64
+	FiveMin            PeriodStats
+	Total              PeriodStats
+	WritebackRateDebug WritebackRateDebugStats
 }

 // CacheStats contains statistics for one cache device.
@ -82,3 +83,14 @@ type PeriodStats struct {
 	CacheMisses         uint64
 	CacheReadaheads     uint64
 }
+
+// WritebackRateDebugStats contains bcache writeback statistics.
+type WritebackRateDebugStats struct {
+	Rate         uint64
+	Dirty        uint64
+	Target       uint64
+	Proportional int64
+	Integral     int64
+	Change       int64
+	NextIO       int64
+}
--- a/vendor/github.com/prometheus/procfs/bcache/get.go
+++ b/vendor/github.com/prometheus/procfs/bcache/get.go
@ -174,6 +174,17 @@ func dehumanize(hbytes []byte) (uint64, error) {
 	return res, nil
 }

+func dehumanizeSigned(str string) (int64, error) {
+	value, err := dehumanize([]byte(strings.TrimPrefix(str, "-")))
+	if err != nil {
+		return 0, err
+	}
+	if strings.HasPrefix(str, "-") {
+		return int64(-value), nil
+	}
+	return int64(value), nil
+}
+
 type parser struct {
 	uuidPath   string
 	subDir     string
@ -232,6 +243,72 @@ func parsePriorityStats(line string, ps *PriorityStats) error {
 	return nil
 }

+// ParseWritebackRateDebug parses lines from the writeback_rate_debug file.
+func parseWritebackRateDebug(line string, wrd *WritebackRateDebugStats) error {
+	switch {
+	case strings.HasPrefix(line, "rate:"):
+		fields := strings.Fields(line)
+		rawValue := fields[len(fields)-1]
+		valueStr := strings.TrimSuffix(rawValue, "/sec")
+		value, err := dehumanize([]byte(valueStr))
+		if err != nil {
+			return err
+		}
+		wrd.Rate = value
+	case strings.HasPrefix(line, "dirty:"):
+		fields := strings.Fields(line)
+		valueStr := fields[len(fields)-1]
+		value, err := dehumanize([]byte(valueStr))
+		if err != nil {
+			return err
+		}
+		wrd.Dirty = value
+	case strings.HasPrefix(line, "target:"):
+		fields := strings.Fields(line)
+		valueStr := fields[len(fields)-1]
+		value, err := dehumanize([]byte(valueStr))
+		if err != nil {
+			return err
+		}
+		wrd.Target = value
+	case strings.HasPrefix(line, "proportional:"):
+		fields := strings.Fields(line)
+		valueStr := fields[len(fields)-1]
+		value, err := dehumanizeSigned(valueStr)
+		if err != nil {
+			return err
+		}
+		wrd.Proportional = value
+	case strings.HasPrefix(line, "integral:"):
+		fields := strings.Fields(line)
+		valueStr := fields[len(fields)-1]
+		value, err := dehumanizeSigned(valueStr)
+		if err != nil {
+			return err
+		}
+		wrd.Integral = value
+	case strings.HasPrefix(line, "change:"):
+		fields := strings.Fields(line)
+		rawValue := fields[len(fields)-1]
+		valueStr := strings.TrimSuffix(rawValue, "/sec")
+		value, err := dehumanizeSigned(valueStr)
+		if err != nil {
+			return err
+		}
+		wrd.Change = value
+	case strings.HasPrefix(line, "next io:"):
+		fields := strings.Fields(line)
+		rawValue := fields[len(fields)-1]
+		valueStr := strings.TrimSuffix(rawValue, "ms")
+		value, err := strconv.ParseInt(valueStr, 10, 64)
+		if err != nil {
+			return err
+		}
+		wrd.NextIO = value
+	}
+	return nil
+}
+
 func (p *parser) getPriorityStats() PriorityStats {
 	var res PriorityStats

@ -263,6 +340,35 @@ func (p *parser) getPriorityStats() PriorityStats {
 	return res
 }

+func (p *parser) getWritebackRateDebug() WritebackRateDebugStats {
+	var res WritebackRateDebugStats
+
+	if p.err != nil {
+		return res
+	}
+	path := path.Join(p.currentDir, "writeback_rate_debug")
+	file, err := os.Open(path)
+	if err != nil {
+		p.err = fmt.Errorf("failed to read: %s", path)
+		return res
+	}
+	defer file.Close()
+
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		err = parseWritebackRateDebug(scanner.Text(), &res)
+		if err != nil {
+			p.err = fmt.Errorf("failed to parse: %s (%s)", path, err)
+			return res
+		}
+	}
+	if err := scanner.Err(); err != nil {
+		p.err = fmt.Errorf("failed to parse: %s (%s)", path, err)
+		return res
+	}
+	return res
+}
+
 // GetStats collects from sysfs files data tied to one bcache ID.
 func GetStats(uuidPath string, priorityStats bool) (*Stats, error) {
 	var bs Stats
@ -339,6 +445,9 @@ func GetStats(uuidPath string, priorityStats bool) (*Stats, error) {
 		par.setSubDir(bds.Name)
 		bds.DirtyData = par.readValue("dirty_data")

+		wrd := par.getWritebackRateDebug()
+		bds.WritebackRateDebug = wrd
+
 		// dir <uuidPath>/<bds.Name>/stats_five_minute
 		par.setSubDir(bds.Name, "stats_five_minute")
 		bds.FiveMin.Bypassed = par.readValue("bypassed")
--- a/vendor/github.com/prometheus/procfs/cpuinfo.go
+++ b/vendor/github.com/prometheus/procfs/cpuinfo.go
@ -11,11 +11,15 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.

+// +build linux
+
 package procfs

 import (
 	"bufio"
 	"bytes"
+	"errors"
+	"regexp"
 	"strconv"
 	"strings"

@ -52,6 +56,11 @@ type CPUInfo struct {
 	PowerManagement string
 }

+var (
+	cpuinfoClockRegexp          = regexp.MustCompile(`([\d.]+)`)
+	cpuinfoS390XProcessorRegexp = regexp.MustCompile(`^processor\s+(\d+):.*`)
+)
+
 // CPUInfo returns information about current system CPUs.
 // See https://www.kernel.org/doc/Documentation/filesystems/proc.txt
 func (fs FS) CPUInfo() ([]CPUInfo, error) {
@ -62,14 +71,26 @@ func (fs FS) CPUInfo() ([]CPUInfo, error) {
 	return parseCPUInfo(data)
 }

-// parseCPUInfo parses data from /proc/cpuinfo
-func parseCPUInfo(info []byte) ([]CPUInfo, error) {
-	cpuinfo := []CPUInfo{}
-	i := -1
+func parseCPUInfoX86(info []byte) ([]CPUInfo, error) {
 	scanner := bufio.NewScanner(bytes.NewReader(info))
+
+	// find the first "processor" line
+	firstLine := firstNonEmptyLine(scanner)
+	if !strings.HasPrefix(firstLine, "processor") || !strings.Contains(firstLine, ":") {
+		return nil, errors.New("invalid cpuinfo file: " + firstLine)
+	}
+	field := strings.SplitN(firstLine, ": ", 2)
+	v, err := strconv.ParseUint(field[1], 0, 32)
+	if err != nil {
+		return nil, err
+	}
+	firstcpu := CPUInfo{Processor: uint(v)}
+	cpuinfo := []CPUInfo{firstcpu}
+	i := 0
+
 	for scanner.Scan() {
 		line := scanner.Text()
-		if strings.TrimSpace(line) == "" {
+		if !strings.Contains(line, ":") {
 			continue
 		}
 		field := strings.SplitN(line, ": ", 2)
@ -82,7 +103,7 @@ func parseCPUInfo(info []byte) ([]CPUInfo, error) {
 				return nil, err
 			}
 			cpuinfo[i].Processor = uint(v)
-		case "vendor_id":
+		case "vendor", "vendor_id":
 			cpuinfo[i].VendorID = field[1]
 		case "cpu family":
 			cpuinfo[i].CPUFamily = field[1]
@ -163,5 +184,237 @@ func parseCPUInfo(info []byte) ([]CPUInfo, error) {
 		}
 	}
 	return cpuinfo, nil
+}
+
+func parseCPUInfoARM(info []byte) ([]CPUInfo, error) {
+	scanner := bufio.NewScanner(bytes.NewReader(info))
+
+	firstLine := firstNonEmptyLine(scanner)
+	match, _ := regexp.MatchString("^[Pp]rocessor", firstLine)
+	if !match || !strings.Contains(firstLine, ":") {
+		return nil, errors.New("invalid cpuinfo file: " + firstLine)
+	}
+	field := strings.SplitN(firstLine, ": ", 2)
+	cpuinfo := []CPUInfo{}
+	featuresLine := ""
+	commonCPUInfo := CPUInfo{}
+	i := 0
+	if strings.TrimSpace(field[0]) == "Processor" {
+		commonCPUInfo = CPUInfo{ModelName: field[1]}
+		i = -1
+	} else {
+		v, err := strconv.ParseUint(field[1], 0, 32)
+		if err != nil {
+			return nil, err
+		}
+		firstcpu := CPUInfo{Processor: uint(v)}
+		cpuinfo = []CPUInfo{firstcpu}
+	}
+
+	for scanner.Scan() {
+		line := scanner.Text()
+		if !strings.Contains(line, ":") {
+			continue
+		}
+		field := strings.SplitN(line, ": ", 2)
+		switch strings.TrimSpace(field[0]) {
+		case "processor":
+			cpuinfo = append(cpuinfo, commonCPUInfo) // start of the next processor
+			i++
+			v, err := strconv.ParseUint(field[1], 0, 32)
+			if err != nil {
+				return nil, err
+			}
+			cpuinfo[i].Processor = uint(v)
+		case "BogoMIPS":
+			if i == -1 {
+				cpuinfo = append(cpuinfo, commonCPUInfo) // There is only one processor
+				i++
+				cpuinfo[i].Processor = 0
+			}
+			v, err := strconv.ParseFloat(field[1], 64)
+			if err != nil {
+				return nil, err
+			}
+			cpuinfo[i].BogoMips = v
+		case "Features":
+			featuresLine = line
+		case "model name":
+			cpuinfo[i].ModelName = field[1]
+		}
+	}
+	fields := strings.SplitN(featuresLine, ": ", 2)
+	for i := range cpuinfo {
+		cpuinfo[i].Flags = strings.Fields(fields[1])
+	}
+	return cpuinfo, nil

 }
+
+func parseCPUInfoS390X(info []byte) ([]CPUInfo, error) {
+	scanner := bufio.NewScanner(bytes.NewReader(info))
+
+	firstLine := firstNonEmptyLine(scanner)
+	if !strings.HasPrefix(firstLine, "vendor_id") || !strings.Contains(firstLine, ":") {
+		return nil, errors.New("invalid cpuinfo file: " + firstLine)
+	}
+	field := strings.SplitN(firstLine, ": ", 2)
+	cpuinfo := []CPUInfo{}
+	commonCPUInfo := CPUInfo{VendorID: field[1]}
+
+	for scanner.Scan() {
+		line := scanner.Text()
+		if !strings.Contains(line, ":") {
+			continue
+		}
+		field := strings.SplitN(line, ": ", 2)
+		switch strings.TrimSpace(field[0]) {
+		case "bogomips per cpu":
+			v, err := strconv.ParseFloat(field[1], 64)
+			if err != nil {
+				return nil, err
+			}
+			commonCPUInfo.BogoMips = v
+		case "features":
+			commonCPUInfo.Flags = strings.Fields(field[1])
+		}
+		if strings.HasPrefix(line, "processor") {
+			match := cpuinfoS390XProcessorRegexp.FindStringSubmatch(line)
+			if len(match) < 2 {
+				return nil, errors.New("Invalid line found in cpuinfo: " + line)
+			}
+			cpu := commonCPUInfo
+			v, err := strconv.ParseUint(match[1], 0, 32)
+			if err != nil {
+				return nil, err
+			}
+			cpu.Processor = uint(v)
+			cpuinfo = append(cpuinfo, cpu)
+		}
+		if strings.HasPrefix(line, "cpu number") {
+			break
+		}
+	}
+
+	i := 0
+	for scanner.Scan() {
+		line := scanner.Text()
+		if !strings.Contains(line, ":") {
+			continue
+		}
+		field := strings.SplitN(line, ": ", 2)
+		switch strings.TrimSpace(field[0]) {
+		case "cpu number":
+			i++
+		case "cpu MHz dynamic":
+			clock := cpuinfoClockRegexp.FindString(strings.TrimSpace(field[1]))
+			v, err := strconv.ParseFloat(clock, 64)
+			if err != nil {
+				return nil, err
+			}
+			cpuinfo[i].CPUMHz = v
+		}
+	}
+
+	return cpuinfo, nil
+}
+
+func parseCPUInfoMips(info []byte) ([]CPUInfo, error) {
+	scanner := bufio.NewScanner(bytes.NewReader(info))
+
+	// find the first "processor" line
+	firstLine := firstNonEmptyLine(scanner)
+	if !strings.HasPrefix(firstLine, "system type") || !strings.Contains(firstLine, ":") {
+		return nil, errors.New("invalid cpuinfo file: " + firstLine)
+	}
+	field := strings.SplitN(firstLine, ": ", 2)
+	cpuinfo := []CPUInfo{}
+	systemType := field[1]
+
+	i := 0
+
+	for scanner.Scan() {
+		line := scanner.Text()
+		if !strings.Contains(line, ":") {
+			continue
+		}
+		field := strings.SplitN(line, ": ", 2)
+		switch strings.TrimSpace(field[0]) {
+		case "processor":
+			v, err := strconv.ParseUint(field[1], 0, 32)
+			if err != nil {
+				return nil, err
+			}
+			i = int(v)
+			cpuinfo = append(cpuinfo, CPUInfo{}) // start of the next processor
+			cpuinfo[i].Processor = uint(v)
+			cpuinfo[i].VendorID = systemType
+		case "cpu model":
+			cpuinfo[i].ModelName = field[1]
+		case "BogoMIPS":
+			v, err := strconv.ParseFloat(field[1], 64)
+			if err != nil {
+				return nil, err
+			}
+			cpuinfo[i].BogoMips = v
+		}
+	}
+	return cpuinfo, nil
+}
+
+func parseCPUInfoPPC(info []byte) ([]CPUInfo, error) {
+	scanner := bufio.NewScanner(bytes.NewReader(info))
+
+	firstLine := firstNonEmptyLine(scanner)
+	if !strings.HasPrefix(firstLine, "processor") || !strings.Contains(firstLine, ":") {
+		return nil, errors.New("invalid cpuinfo file: " + firstLine)
+	}
+	field := strings.SplitN(firstLine, ": ", 2)
+	v, err := strconv.ParseUint(field[1], 0, 32)
+	if err != nil {
+		return nil, err
+	}
+	firstcpu := CPUInfo{Processor: uint(v)}
+	cpuinfo := []CPUInfo{firstcpu}
+	i := 0
+
+	for scanner.Scan() {
+		line := scanner.Text()
+		if !strings.Contains(line, ":") {
+			continue
+		}
+		field := strings.SplitN(line, ": ", 2)
+		switch strings.TrimSpace(field[0]) {
+		case "processor":
+			cpuinfo = append(cpuinfo, CPUInfo{}) // start of the next processor
+			i++
+			v, err := strconv.ParseUint(field[1], 0, 32)
+			if err != nil {
+				return nil, err
+			}
+			cpuinfo[i].Processor = uint(v)
+		case "cpu":
+			cpuinfo[i].VendorID = field[1]
+		case "clock":
+			clock := cpuinfoClockRegexp.FindString(strings.TrimSpace(field[1]))
+			v, err := strconv.ParseFloat(clock, 64)
+			if err != nil {
+				return nil, err
+			}
+			cpuinfo[i].CPUMHz = v
+		}
+	}
+	return cpuinfo, nil
+}
+
+// firstNonEmptyLine advances the scanner to the first non-empty line
+// and returns the contents of that line
+func firstNonEmptyLine(scanner *bufio.Scanner) string {
+	for scanner.Scan() {
+		line := scanner.Text()
+		if strings.TrimSpace(line) != "" {
+			return line
+		}
+	}
+	return ""
+}
--- a/vendor/github.com/prometheus/procfs/cpuinfo_arm.go
+++ b/vendor/github.com/prometheus/procfs/cpuinfo_arm.go
@ -0,0 +1,18 @@
+// Copyright 2020 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build linux
+
+package procfs
+
+var parseCPUInfo = parseCPUInfoARM
--- a/vendor/github.com/prometheus/procfs/cpuinfo_arm64.go
+++ b/vendor/github.com/prometheus/procfs/cpuinfo_arm64.go
@ -0,0 +1,19 @@
+// Copyright 2020 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build linux
+// +build arm64
+
+package procfs
+
+var parseCPUInfo = parseCPUInfoARM
--- a/vendor/github.com/prometheus/procfs/cpuinfo_default.go
+++ b/vendor/github.com/prometheus/procfs/cpuinfo_default.go
@ -0,0 +1,19 @@
+// Copyright 2020 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build linux
+// +build 386 amd64
+
+package procfs
+
+var parseCPUInfo = parseCPUInfoX86
--- a/vendor/github.com/prometheus/procfs/cpuinfo_mips.go
+++ b/vendor/github.com/prometheus/procfs/cpuinfo_mips.go
@ -0,0 +1,18 @@
+// Copyright 2020 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build linux
+
+package procfs
+
+var parseCPUInfo = parseCPUInfoMips
--- a/vendor/github.com/prometheus/procfs/cpuinfo_mips64.go
+++ b/vendor/github.com/prometheus/procfs/cpuinfo_mips64.go
@ -0,0 +1,18 @@
+// Copyright 2020 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build linux
+
+package procfs
+
+var parseCPUInfo = parseCPUInfoMips
--- a/vendor/github.com/prometheus/procfs/cpuinfo_mips64le.go
+++ b/vendor/github.com/prometheus/procfs/cpuinfo_mips64le.go
@ -0,0 +1,18 @@
+// Copyright 2020 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build linux
+
+package procfs
+
+var parseCPUInfo = parseCPUInfoMips
--- a/vendor/github.com/prometheus/procfs/cpuinfo_mipsle.go
+++ b/vendor/github.com/prometheus/procfs/cpuinfo_mipsle.go
@ -0,0 +1,18 @@
+// Copyright 2020 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build linux
+
+package procfs
+
+var parseCPUInfo = parseCPUInfoMips
--- a/vendor/github.com/prometheus/procfs/cpuinfo_ppc64.go
+++ b/vendor/github.com/prometheus/procfs/cpuinfo_ppc64.go
@ -0,0 +1,18 @@
+// Copyright 2020 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build linux
+
+package procfs
+
+var parseCPUInfo = parseCPUInfoPPC
--- a/vendor/github.com/prometheus/procfs/cpuinfo_ppc64le.go
+++ b/vendor/github.com/prometheus/procfs/cpuinfo_ppc64le.go
@ -0,0 +1,18 @@
+// Copyright 2020 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build linux
+
+package procfs
+
+var parseCPUInfo = parseCPUInfoPPC
--- a/vendor/github.com/prometheus/procfs/cpuinfo_s390x.go
+++ b/vendor/github.com/prometheus/procfs/cpuinfo_s390x.go
@ -0,0 +1,18 @@
+// Copyright 2020 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build linux
+
+package procfs
+
+var parseCPUInfo = parseCPUInfoS390X
--- a/vendor/github.com/prometheus/procfs/fixtures.ttar
+++ b/vendor/github.com/prometheus/procfs/fixtures.ttar
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 Mode: 755
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--- a/vendor/github.com/prometheus/procfs/fscache.go
+++ b/vendor/github.com/prometheus/procfs/fscache.go
@ -0,0 +1,422 @@
+// Copyright 2019 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package procfs
+
+import (
+	"bufio"
+	"bytes"
+	"fmt"
+	"io"
+	"strconv"
+	"strings"
+
+	"github.com/prometheus/procfs/internal/util"
+)
+
+// Fscacheinfo represents fscache statistics.
+type Fscacheinfo struct {
+	// Number of index cookies allocated
+	IndexCookiesAllocated uint64
+	// data storage cookies allocated
+	DataStorageCookiesAllocated uint64
+	// Number of special cookies allocated
+	SpecialCookiesAllocated uint64
+	// Number of objects allocated
+	ObjectsAllocated uint64
+	// Number of object allocation failures
+	ObjectAllocationsFailure uint64
+	// Number of objects that reached the available state
+	ObjectsAvailable uint64
+	// Number of objects that reached the dead state
+	ObjectsDead uint64
+	// Number of objects that didn't have a coherency check
+	ObjectsWithoutCoherencyCheck uint64
+	// Number of objects that passed a coherency check
+	ObjectsWithCoherencyCheck uint64
+	// Number of objects that needed a coherency data update
+	ObjectsNeedCoherencyCheckUpdate uint64
+	// Number of objects that were declared obsolete
+	ObjectsDeclaredObsolete uint64
+	// Number of pages marked as being cached
+	PagesMarkedAsBeingCached uint64
+	// Number of uncache page requests seen
+	UncachePagesRequestSeen uint64
+	// Number of acquire cookie requests seen
+	AcquireCookiesRequestSeen uint64
+	// Number of acq reqs given a NULL parent
+	AcquireRequestsWithNullParent uint64
+	// Number of acq reqs rejected due to no cache available
+	AcquireRequestsRejectedNoCacheAvailable uint64
+	// Number of acq reqs succeeded
+	AcquireRequestsSucceeded uint64
+	// Number of acq reqs rejected due to error
+	AcquireRequestsRejectedDueToError uint64
+	// Number of acq reqs failed on ENOMEM
+	AcquireRequestsFailedDueToEnomem uint64
+	// Number of lookup calls made on cache backends
+	LookupsNumber uint64
+	// Number of negative lookups made
+	LookupsNegative uint64
+	// Number of positive lookups made
+	LookupsPositive uint64
+	// Number of objects created by lookup
+	ObjectsCreatedByLookup uint64
+	// Number of lookups timed out and requeued
+	LookupsTimedOutAndRequed uint64
+	InvalidationsNumber      uint64
+	InvalidationsRunning     uint64
+	// Number of update cookie requests seen
+	UpdateCookieRequestSeen uint64
+	// Number of upd reqs given a NULL parent
+	UpdateRequestsWithNullParent uint64
+	// Number of upd reqs granted CPU time
+	UpdateRequestsRunning uint64
+	// Number of relinquish cookie requests seen
+	RelinquishCookiesRequestSeen uint64
+	// Number of rlq reqs given a NULL parent
+	RelinquishCookiesWithNullParent uint64
+	// Number of rlq reqs waited on completion of creation
+	RelinquishRequestsWaitingCompleteCreation uint64
+	// Relinqs rtr
+	RelinquishRetries uint64
+	// Number of attribute changed requests seen
+	AttributeChangedRequestsSeen uint64
+	// Number of attr changed requests queued
+	AttributeChangedRequestsQueued uint64
+	// Number of attr changed rejected -ENOBUFS
+	AttributeChangedRejectDueToEnobufs uint64
+	// Number of attr changed failed -ENOMEM
+	AttributeChangedFailedDueToEnomem uint64
+	// Number of attr changed ops given CPU time
+	AttributeChangedOps uint64
+	// Number of allocation requests seen
+	AllocationRequestsSeen uint64
+	// Number of successful alloc reqs
+	AllocationOkRequests uint64
+	// Number of alloc reqs that waited on lookup completion
+	AllocationWaitingOnLookup uint64
+	// Number of alloc reqs rejected -ENOBUFS
+	AllocationsRejectedDueToEnobufs uint64
+	// Number of alloc reqs aborted -ERESTARTSYS
+	AllocationsAbortedDueToErestartsys uint64
+	// Number of alloc reqs submitted
+	AllocationOperationsSubmitted uint64
+	// Number of alloc reqs waited for CPU time
+	AllocationsWaitedForCPU uint64
+	// Number of alloc reqs aborted due to object death
+	AllocationsAbortedDueToObjectDeath uint64
+	// Number of retrieval (read) requests seen
+	RetrievalsReadRequests uint64
+	// Number of successful retr reqs
+	RetrievalsOk uint64
+	// Number of retr reqs that waited on lookup completion
+	RetrievalsWaitingLookupCompletion uint64
+	// Number of retr reqs returned -ENODATA
+	RetrievalsReturnedEnodata uint64
+	// Number of retr reqs rejected -ENOBUFS
+	RetrievalsRejectedDueToEnobufs uint64
+	// Number of retr reqs aborted -ERESTARTSYS
+	RetrievalsAbortedDueToErestartsys uint64
+	// Number of retr reqs failed -ENOMEM
+	RetrievalsFailedDueToEnomem uint64
+	// Number of retr reqs submitted
+	RetrievalsRequests uint64
+	// Number of retr reqs waited for CPU time
+	RetrievalsWaitingCPU uint64
+	// Number of retr reqs aborted due to object death
+	RetrievalsAbortedDueToObjectDeath uint64
+	// Number of storage (write) requests seen
+	StoreWriteRequests uint64
+	// Number of successful store reqs
+	StoreSuccessfulRequests uint64
+	// Number of store reqs on a page already pending storage
+	StoreRequestsOnPendingStorage uint64
+	// Number of store reqs rejected -ENOBUFS
+	StoreRequestsRejectedDueToEnobufs uint64
+	// Number of store reqs failed -ENOMEM
+	StoreRequestsFailedDueToEnomem uint64
+	// Number of store reqs submitted
+	StoreRequestsSubmitted uint64
+	// Number of store reqs granted CPU time
+	StoreRequestsRunning uint64
+	// Number of pages given store req processing time
+	StorePagesWithRequestsProcessing uint64
+	// Number of store reqs deleted from tracking tree
+	StoreRequestsDeleted uint64
+	// Number of store reqs over store limit
+	StoreRequestsOverStoreLimit uint64
+	// Number of release reqs against pages with no pending store
+	ReleaseRequestsAgainstPagesWithNoPendingStorage uint64
+	// Number of release reqs against pages stored by time lock granted
+	ReleaseRequestsAgainstPagesStoredByTimeLockGranted uint64
+	// Number of release reqs ignored due to in-progress store
+	ReleaseRequestsIgnoredDueToInProgressStore uint64
+	// Number of page stores cancelled due to release req
+	PageStoresCancelledByReleaseRequests uint64
+	VmscanWaiting                        uint64
+	// Number of times async ops added to pending queues
+	OpsPending uint64
+	// Number of times async ops given CPU time
+	OpsRunning uint64
+	// Number of times async ops queued for processing
+	OpsEnqueued uint64
+	// Number of async ops cancelled
+	OpsCancelled uint64
+	// Number of async ops rejected due to object lookup/create failure
+	OpsRejected uint64
+	// Number of async ops initialised
+	OpsInitialised uint64
+	// Number of async ops queued for deferred release
+	OpsDeferred uint64
+	// Number of async ops released (should equal ini=N when idle)
+	OpsReleased uint64
+	// Number of deferred-release async ops garbage collected
+	OpsGarbageCollected uint64
+	// Number of in-progress alloc_object() cache ops
+	CacheopAllocationsinProgress uint64
+	// Number of in-progress lookup_object() cache ops
+	CacheopLookupObjectInProgress uint64
+	// Number of in-progress lookup_complete() cache ops
+	CacheopLookupCompleteInPorgress uint64
+	// Number of in-progress grab_object() cache ops
+	CacheopGrabObjectInProgress uint64
+	CacheopInvalidations        uint64
+	// Number of in-progress update_object() cache ops
+	CacheopUpdateObjectInProgress uint64
+	// Number of in-progress drop_object() cache ops
+	CacheopDropObjectInProgress uint64
+	// Number of in-progress put_object() cache ops
+	CacheopPutObjectInProgress uint64
+	// Number of in-progress attr_changed() cache ops
+	CacheopAttributeChangeInProgress uint64
+	// Number of in-progress sync_cache() cache ops
+	CacheopSyncCacheInProgress uint64
+	// Number of in-progress read_or_alloc_page() cache ops
+	CacheopReadOrAllocPageInProgress uint64
+	// Number of in-progress read_or_alloc_pages() cache ops
+	CacheopReadOrAllocPagesInProgress uint64
+	// Number of in-progress allocate_page() cache ops
+	CacheopAllocatePageInProgress uint64
+	// Number of in-progress allocate_pages() cache ops
+	CacheopAllocatePagesInProgress uint64
+	// Number of in-progress write_page() cache ops
+	CacheopWritePagesInProgress uint64
+	// Number of in-progress uncache_page() cache ops
+	CacheopUncachePagesInProgress uint64
+	// Number of in-progress dissociate_pages() cache ops
+	CacheopDissociatePagesInProgress uint64
+	// Number of object lookups/creations rejected due to lack of space
+	CacheevLookupsAndCreationsRejectedLackSpace uint64
+	// Number of stale objects deleted
+	CacheevStaleObjectsDeleted uint64
+	// Number of objects retired when relinquished
+	CacheevRetiredWhenReliquished uint64
+	// Number of objects culled
+	CacheevObjectsCulled uint64
+}
+
+// Fscacheinfo returns information about current fscache statistics.
+// See https://www.kernel.org/doc/Documentation/filesystems/caching/fscache.txt
+func (fs FS) Fscacheinfo() (Fscacheinfo, error) {
+	b, err := util.ReadFileNoStat(fs.proc.Path("fs/fscache/stats"))
+	if err != nil {
+		return Fscacheinfo{}, err
+	}
+
+	m, err := parseFscacheinfo(bytes.NewReader(b))
+	if err != nil {
+		return Fscacheinfo{}, fmt.Errorf("failed to parse Fscacheinfo: %v", err)
+	}
+
+	return *m, nil
+}
+
+func setFSCacheFields(fields []string, setFields ...*uint64) error {
+	var err error
+	if len(fields) < len(setFields) {
+		return fmt.Errorf("Insufficient number of fields, expected %v, got %v", len(setFields), len(fields))
+	}
+
+	for i := range setFields {
+		*setFields[i], err = strconv.ParseUint(strings.Split(fields[i], "=")[1], 0, 64)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func parseFscacheinfo(r io.Reader) (*Fscacheinfo, error) {
+	var m Fscacheinfo
+	s := bufio.NewScanner(r)
+	for s.Scan() {
+		fields := strings.Fields(s.Text())
+		if len(fields) < 2 {
+			return nil, fmt.Errorf("malformed Fscacheinfo line: %q", s.Text())
+		}
+
+		switch fields[0] {
+		case "Cookies:":
+			err := setFSCacheFields(fields[1:], &m.IndexCookiesAllocated, &m.DataStorageCookiesAllocated,
+				&m.SpecialCookiesAllocated)
+			if err != nil {
+				return &m, err
+			}
+		case "Objects:":
+			err := setFSCacheFields(fields[1:], &m.ObjectsAllocated, &m.ObjectAllocationsFailure,
+				&m.ObjectsAvailable, &m.ObjectsDead)
+			if err != nil {
+				return &m, err
+			}
+		case "ChkAux":
+			err := setFSCacheFields(fields[2:], &m.ObjectsWithoutCoherencyCheck, &m.ObjectsWithCoherencyCheck,
+				&m.ObjectsNeedCoherencyCheckUpdate, &m.ObjectsDeclaredObsolete)
+			if err != nil {
+				return &m, err
+			}
+		case "Pages":
+			err := setFSCacheFields(fields[2:], &m.PagesMarkedAsBeingCached, &m.UncachePagesRequestSeen)
+			if err != nil {
+				return &m, err
+			}
+		case "Acquire:":
+			err := setFSCacheFields(fields[1:], &m.AcquireCookiesRequestSeen, &m.AcquireRequestsWithNullParent,
+				&m.AcquireRequestsRejectedNoCacheAvailable, &m.AcquireRequestsSucceeded, &m.AcquireRequestsRejectedDueToError,
+				&m.AcquireRequestsFailedDueToEnomem)
+			if err != nil {
+				return &m, err
+			}
+		case "Lookups:":
+			err := setFSCacheFields(fields[1:], &m.LookupsNumber, &m.LookupsNegative, &m.LookupsPositive,
+				&m.ObjectsCreatedByLookup, &m.LookupsTimedOutAndRequed)
+			if err != nil {
+				return &m, err
+			}
+		case "Invals":
+			err := setFSCacheFields(fields[2:], &m.InvalidationsNumber, &m.InvalidationsRunning)
+			if err != nil {
+				return &m, err
+			}
+		case "Updates:":
+			err := setFSCacheFields(fields[1:], &m.UpdateCookieRequestSeen, &m.UpdateRequestsWithNullParent,
+				&m.UpdateRequestsRunning)
+			if err != nil {
+				return &m, err
+			}
+		case "Relinqs:":
+			err := setFSCacheFields(fields[1:], &m.RelinquishCookiesRequestSeen, &m.RelinquishCookiesWithNullParent,
+				&m.RelinquishRequestsWaitingCompleteCreation, &m.RelinquishRetries)
+			if err != nil {
+				return &m, err
+			}
+		case "AttrChg:":
+			err := setFSCacheFields(fields[1:], &m.AttributeChangedRequestsSeen, &m.AttributeChangedRequestsQueued,
+				&m.AttributeChangedRejectDueToEnobufs, &m.AttributeChangedFailedDueToEnomem, &m.AttributeChangedOps)
+			if err != nil {
+				return &m, err
+			}
+		case "Allocs":
+			if strings.Split(fields[2], "=")[0] == "n" {
+				err := setFSCacheFields(fields[2:], &m.AllocationRequestsSeen, &m.AllocationOkRequests,
+					&m.AllocationWaitingOnLookup, &m.AllocationsRejectedDueToEnobufs, &m.AllocationsAbortedDueToErestartsys)
+				if err != nil {
+					return &m, err
+				}
+			} else {
+				err := setFSCacheFields(fields[2:], &m.AllocationOperationsSubmitted, &m.AllocationsWaitedForCPU,
+					&m.AllocationsAbortedDueToObjectDeath)
+				if err != nil {
+					return &m, err
+				}
+			}
+		case "Retrvls:":
+			if strings.Split(fields[1], "=")[0] == "n" {
+				err := setFSCacheFields(fields[1:], &m.RetrievalsReadRequests, &m.RetrievalsOk, &m.RetrievalsWaitingLookupCompletion,
+					&m.RetrievalsReturnedEnodata, &m.RetrievalsRejectedDueToEnobufs, &m.RetrievalsAbortedDueToErestartsys,
+					&m.RetrievalsFailedDueToEnomem)
+				if err != nil {
+					return &m, err
+				}
+			} else {
+				err := setFSCacheFields(fields[1:], &m.RetrievalsRequests, &m.RetrievalsWaitingCPU, &m.RetrievalsAbortedDueToObjectDeath)
+				if err != nil {
+					return &m, err
+				}
+			}
+		case "Stores":
+			if strings.Split(fields[2], "=")[0] == "n" {
+				err := setFSCacheFields(fields[2:], &m.StoreWriteRequests, &m.StoreSuccessfulRequests,
+					&m.StoreRequestsOnPendingStorage, &m.StoreRequestsRejectedDueToEnobufs, &m.StoreRequestsFailedDueToEnomem)
+				if err != nil {
+					return &m, err
+				}
+			} else {
+				err := setFSCacheFields(fields[2:], &m.StoreRequestsSubmitted, &m.StoreRequestsRunning,
+					&m.StorePagesWithRequestsProcessing, &m.StoreRequestsDeleted, &m.StoreRequestsOverStoreLimit)
+				if err != nil {
+					return &m, err
+				}
+			}
+		case "VmScan":
+			err := setFSCacheFields(fields[2:], &m.ReleaseRequestsAgainstPagesWithNoPendingStorage,
+				&m.ReleaseRequestsAgainstPagesStoredByTimeLockGranted, &m.ReleaseRequestsIgnoredDueToInProgressStore,
+				&m.PageStoresCancelledByReleaseRequests, &m.VmscanWaiting)
+			if err != nil {
+				return &m, err
+			}
+		case "Ops":
+			if strings.Split(fields[2], "=")[0] == "pend" {
+				err := setFSCacheFields(fields[2:], &m.OpsPending, &m.OpsRunning, &m.OpsEnqueued, &m.OpsCancelled, &m.OpsRejected)
+				if err != nil {
+					return &m, err
+				}
+			} else {
+				err := setFSCacheFields(fields[2:], &m.OpsInitialised, &m.OpsDeferred, &m.OpsReleased, &m.OpsGarbageCollected)
+				if err != nil {
+					return &m, err
+				}
+			}
+		case "CacheOp:":
+			if strings.Split(fields[1], "=")[0] == "alo" {
+				err := setFSCacheFields(fields[1:], &m.CacheopAllocationsinProgress, &m.CacheopLookupObjectInProgress,
+					&m.CacheopLookupCompleteInPorgress, &m.CacheopGrabObjectInProgress)
+				if err != nil {
+					return &m, err
+				}
+			} else if strings.Split(fields[1], "=")[0] == "inv" {
+				err := setFSCacheFields(fields[1:], &m.CacheopInvalidations, &m.CacheopUpdateObjectInProgress,
+					&m.CacheopDropObjectInProgress, &m.CacheopPutObjectInProgress, &m.CacheopAttributeChangeInProgress,
+					&m.CacheopSyncCacheInProgress)
+				if err != nil {
+					return &m, err
+				}
+			} else {
+				err := setFSCacheFields(fields[1:], &m.CacheopReadOrAllocPageInProgress, &m.CacheopReadOrAllocPagesInProgress,
+					&m.CacheopAllocatePageInProgress, &m.CacheopAllocatePagesInProgress, &m.CacheopWritePagesInProgress,
+					&m.CacheopUncachePagesInProgress, &m.CacheopDissociatePagesInProgress)
+				if err != nil {
+					return &m, err
+				}
+			}
+		case "CacheEv:":
+			err := setFSCacheFields(fields[1:], &m.CacheevLookupsAndCreationsRejectedLackSpace, &m.CacheevStaleObjectsDeleted,
+				&m.CacheevRetiredWhenReliquished, &m.CacheevObjectsCulled)
+			if err != nil {
+				return &m, err
+			}
+		}
+	}
+
+	return &m, nil
+}
--- a/vendor/github.com/prometheus/procfs/internal/util/parse.go
+++ b/vendor/github.com/prometheus/procfs/internal/util/parse.go
@ -73,6 +73,15 @@ func ReadUintFromFile(path string) (uint64, error) {
 	return strconv.ParseUint(strings.TrimSpace(string(data)), 10, 64)
 }

+// ReadIntFromFile reads a file and attempts to parse a int64 from it.
+func ReadIntFromFile(path string) (int64, error) {
+	data, err := ioutil.ReadFile(path)
+	if err != nil {
+		return 0, err
+	}
+	return strconv.ParseInt(strings.TrimSpace(string(data)), 10, 64)
+}
+
 // ParseBool parses a string into a boolean pointer.
 func ParseBool(b string) *bool {
 	var truth bool
--- a/vendor/github.com/prometheus/procfs/kernel_random.go
+++ b/vendor/github.com/prometheus/procfs/kernel_random.go
@ -0,0 +1,62 @@
+// Copyright 2020 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build !windows
+
+package procfs
+
+import (
+	"os"
+
+	"github.com/prometheus/procfs/internal/util"
+)
+
+// KernelRandom contains information about to the kernel's random number generator.
+type KernelRandom struct {
+	// EntropyAvaliable gives the available entropy, in bits.
+	EntropyAvaliable *uint64
+	// PoolSize gives the size of the entropy pool, in bytes.
+	PoolSize *uint64
+	// URandomMinReseedSeconds is the number of seconds after which the DRNG will be reseeded.
+	URandomMinReseedSeconds *uint64
+	// WriteWakeupThreshold the number of bits of entropy below which we wake up processes
+	// that do a select(2) or poll(2) for write access to /dev/random.
+	WriteWakeupThreshold *uint64
+	// ReadWakeupThreshold is the number of bits of entropy required for waking up processes that sleep
+	// waiting for entropy from /dev/random.
+	ReadWakeupThreshold *uint64
+}
+
+// KernelRandom returns values from /proc/sys/kernel/random.
+func (fs FS) KernelRandom() (KernelRandom, error) {
+	random := KernelRandom{}
+
+	for file, p := range map[string]**uint64{
+		"entropy_avail":           &random.EntropyAvaliable,
+		"poolsize":                &random.PoolSize,
+		"urandom_min_reseed_secs": &random.URandomMinReseedSeconds,
+		"write_wakeup_threshold":  &random.WriteWakeupThreshold,
+		"read_wakeup_threshold":   &random.ReadWakeupThreshold,
+	} {
+		val, err := util.ReadUintFromFile(fs.proc.Path("sys", "kernel", "random", file))
+		if os.IsNotExist(err) {
+			continue
+		}
+		if err != nil {
+			return random, err
+		}
+		*p = &val
+	}
+
+	return random, nil
+}
--- a/vendor/github.com/prometheus/procfs/mdstat.go
+++ b/vendor/github.com/prometheus/procfs/mdstat.go
@ -52,7 +52,7 @@ type MDStat struct {
 func (fs FS) MDStat() ([]MDStat, error) {
 	data, err := ioutil.ReadFile(fs.proc.Path("mdstat"))
 	if err != nil {
-		return nil, fmt.Errorf("error parsing mdstat %s: %s", fs.proc.Path("mdstat"), err)
+		return nil, err
 	}
 	mdstat, err := parseMDStat(data)
 	if err != nil {
--- a/vendor/github.com/prometheus/procfs/mountinfo.go
+++ b/vendor/github.com/prometheus/procfs/mountinfo.go
@ -77,7 +77,7 @@ func parseMountInfoString(mountString string) (*MountInfo, error) {

 	mountInfo := strings.Split(mountString, " ")
 	mountInfoLength := len(mountInfo)
-	if mountInfoLength < 11 {
+	if mountInfoLength < 10 {
 		return nil, fmt.Errorf("couldn't find enough fields in mount string: %s", mountString)
 	}

@ -144,7 +144,7 @@ func mountOptionsParseOptionalFields(o []string) (map[string]string, error) {
 	return optionalFields, nil
 }

-// Parses the mount options, superblock options.
+// mountOptionsParser parses the mount options, superblock options.
 func mountOptionsParser(mountOptions string) map[string]string {
 	opts := make(map[string]string)
 	options := strings.Split(mountOptions, ",")
@ -161,7 +161,7 @@ func mountOptionsParser(mountOptions string) map[string]string {
 	return opts
 }

-// Retrieves mountinfo information from `/proc/self/mountinfo`.
+// GetMounts retrieves mountinfo information from `/proc/self/mountinfo`.
 func GetMounts() ([]*MountInfo, error) {
 	data, err := util.ReadFileNoStat("/proc/self/mountinfo")
 	if err != nil {
@ -170,7 +170,7 @@ func GetMounts() ([]*MountInfo, error) {
 	return parseMountInfo(data)
 }

-// Retrieves mountinfo information from a processes' `/proc/<pid>/mountinfo`.
+// GetProcMounts retrieves mountinfo information from a processes' `/proc/<pid>/mountinfo`.
 func GetProcMounts(pid int) ([]*MountInfo, error) {
 	data, err := util.ReadFileNoStat(fmt.Sprintf("/proc/%d/mountinfo", pid))
 	if err != nil {
--- a/vendor/github.com/prometheus/procfs/mountstats.go
+++ b/vendor/github.com/prometheus/procfs/mountstats.go
@ -186,6 +186,8 @@ type NFSOperationStats struct {
 	CumulativeTotalResponseMilliseconds uint64
 	// Duration from when a request was enqueued to when it was completely handled.
 	CumulativeTotalRequestMilliseconds uint64
+	// The count of operations that complete with tk_status < 0.  These statuses usually indicate error conditions.
+	Errors uint64
 }

 // A NFSTransportStats contains statistics for the NFS mount RPC requests and
@ -494,8 +496,8 @@ func parseNFSEventsStats(ss []string) (*NFSEventsStats, error) {
 // line is reached.
 func parseNFSOperationStats(s *bufio.Scanner) ([]NFSOperationStats, error) {
 	const (
-		// Number of expected fields in each per-operation statistics set
-		numFields = 9
+		// Minimum number of expected fields in each per-operation statistics set
+		minFields = 9
 	)

 	var ops []NFSOperationStats
@ -508,12 +510,12 @@ func parseNFSOperationStats(s *bufio.Scanner) ([]NFSOperationStats, error) {
 			break
 		}

-		if len(ss) != numFields {
+		if len(ss) < minFields {
 			return nil, fmt.Errorf("invalid NFS per-operations stats: %v", ss)
 		}

 		// Skip string operation name for integers
-		ns := make([]uint64, 0, numFields-1)
+		ns := make([]uint64, 0, minFields-1)
 		for _, st := range ss[1:] {
 			n, err := strconv.ParseUint(st, 10, 64)
 			if err != nil {
@ -523,7 +525,7 @@ func parseNFSOperationStats(s *bufio.Scanner) ([]NFSOperationStats, error) {
 			ns = append(ns, n)
 		}

-		ops = append(ops, NFSOperationStats{
+		opStats := NFSOperationStats{
 			Operation:                           strings.TrimSuffix(ss[0], ":"),
 			Requests:                            ns[0],
 			Transmissions:                       ns[1],
@ -533,7 +535,13 @@ func parseNFSOperationStats(s *bufio.Scanner) ([]NFSOperationStats, error) {
 			CumulativeQueueMilliseconds:         ns[5],
 			CumulativeTotalResponseMilliseconds: ns[6],
 			CumulativeTotalRequestMilliseconds:  ns[7],
-		})
+		}
+
+		if len(ns) > 8 {
+			opStats.Errors = ns[8]
+		}
+
+		ops = append(ops, opStats)
 	}

 	return ops, s.Err()
--- a/vendor/github.com/prometheus/procfs/net_conntrackstat.go
+++ b/vendor/github.com/prometheus/procfs/net_conntrackstat.go
@ -38,7 +38,7 @@ type ConntrackStatEntry struct {
 	SearchRestart uint64
 }

-// Retrieves netfilter's conntrack statistics, split by CPU cores
+// ConntrackStat retrieves netfilter's conntrack statistics, split by CPU cores
 func (fs FS) ConntrackStat() ([]ConntrackStatEntry, error) {
 	return readConntrackStat(fs.proc.Path("net", "stat", "nf_conntrack"))
 }
--- a/vendor/github.com/prometheus/procfs/proc.go
+++ b/vendor/github.com/prometheus/procfs/proc.go
@ -134,6 +134,27 @@ func (p Proc) CmdLine() ([]string, error) {
 	return strings.Split(string(bytes.TrimRight(data, string("\x00"))), string(byte(0))), nil
 }

+// Wchan returns the wchan (wait channel) of a process.
+func (p Proc) Wchan() (string, error) {
+	f, err := os.Open(p.path("wchan"))
+	if err != nil {
+		return "", err
+	}
+	defer f.Close()
+
+	data, err := ioutil.ReadAll(f)
+	if err != nil {
+		return "", err
+	}
+
+	wchan := string(data)
+	if wchan == "" || wchan == "0" {
+		return "", nil
+	}
+
+	return wchan, nil
+}
+
 // Comm returns the command name of a process.
 func (p Proc) Comm() (string, error) {
 	data, err := util.ReadFileNoStat(p.path("comm"))
--- a/vendor/github.com/prometheus/procfs/proc_cgroup.go
+++ b/vendor/github.com/prometheus/procfs/proc_cgroup.go
@ -0,0 +1,98 @@
+// Copyright 2020 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package procfs
+
+import (
+	"bufio"
+	"bytes"
+	"fmt"
+	"strconv"
+	"strings"
+
+	"github.com/prometheus/procfs/internal/util"
+)
+
+// Cgroup models one line from /proc/[pid]/cgroup. Each Cgroup struct describes the the placement of a PID inside a
+// specific control hierarchy. The kernel has two cgroup APIs, v1 and v2. v1 has one hierarchy per available resource
+// controller, while v2 has one unified hierarchy shared by all controllers. Regardless of v1 or v2, all hierarchies
+// contain all running processes, so the question answerable with a Cgroup struct is 'where is this process in
+// this hierarchy' (where==what path on the specific cgroupfs). By prefixing this path with the mount point of
+// *this specific* hierarchy, you can locate the relevant pseudo-files needed to read/set the data for this PID
+// in this hierarchy
+//
+// Also see http://man7.org/linux/man-pages/man7/cgroups.7.html
+type Cgroup struct {
+	// HierarchyID that can be matched to a named hierarchy using /proc/cgroups. Cgroups V2 only has one
+	// hierarchy, so HierarchyID is always 0. For cgroups v1 this is a unique ID number
+	HierarchyID int
+	// Controllers using this hierarchy of processes. Controllers are also known as subsystems. For
+	// Cgroups V2 this may be empty, as all active controllers use the same hierarchy
+	Controllers []string
+	// Path of this control group, relative to the mount point of the cgroupfs representing this specific
+	// hierarchy
+	Path string
+}
+
+// parseCgroupString parses each line of the /proc/[pid]/cgroup file
+// Line format is hierarchyID:[controller1,controller2]:path
+func parseCgroupString(cgroupStr string) (*Cgroup, error) {
+	var err error
+
+	fields := strings.Split(cgroupStr, ":")
+	if len(fields) < 3 {
+		return nil, fmt.Errorf("at least 3 fields required, found %d fields in cgroup string: %s", len(fields), cgroupStr)
+	}
+
+	cgroup := &Cgroup{
+		Path:        fields[2],
+		Controllers: nil,
+	}
+	cgroup.HierarchyID, err = strconv.Atoi(fields[0])
+	if err != nil {
+		return nil, fmt.Errorf("failed to parse hierarchy ID")
+	}
+	if fields[1] != "" {
+		ssNames := strings.Split(fields[1], ",")
+		cgroup.Controllers = append(cgroup.Controllers, ssNames...)
+	}
+	return cgroup, nil
+}
+
+// parseCgroups reads each line of the /proc/[pid]/cgroup file
+func parseCgroups(data []byte) ([]Cgroup, error) {
+	var cgroups []Cgroup
+	scanner := bufio.NewScanner(bytes.NewReader(data))
+	for scanner.Scan() {
+		mountString := scanner.Text()
+		parsedMounts, err := parseCgroupString(mountString)
+		if err != nil {
+			return nil, err
+		}
+		cgroups = append(cgroups, *parsedMounts)
+	}
+
+	err := scanner.Err()
+	return cgroups, err
+}
+
+// Cgroups reads from /proc/<pid>/cgroups and returns a []*Cgroup struct locating this PID in each process
+// control hierarchy running on this system. On every system (v1 and v2), all hierarchies contain all processes,
+// so the len of the returned struct is equal to the number of active hierarchies on this system
+func (p Proc) Cgroups() ([]Cgroup, error) {
+	data, err := util.ReadFileNoStat(fmt.Sprintf("/proc/%d/cgroup", p.PID))
+	if err != nil {
+		return nil, err
+	}
+	return parseCgroups(data)
+}
--- a/vendor/github.com/prometheus/procfs/proc_fdinfo.go
+++ b/vendor/github.com/prometheus/procfs/proc_fdinfo.go
@ -41,7 +41,7 @@ type ProcFDInfo struct {
 	Flags string
 	// Mount point ID
 	MntID string
-	// List of inotify lines (structed) in the fdinfo file (kernel 3.8+ only)
+	// List of inotify lines (structured) in the fdinfo file (kernel 3.8+ only)
 	InotifyInfos []InotifyInfo
 }

--- a/vendor/github.com/prometheus/procfs/proc_maps.go
+++ b/vendor/github.com/prometheus/procfs/proc_maps.go
@ -11,7 +11,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.

-// +build !windows
+// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris

 package procfs

@ -25,6 +25,7 @@ import (
 	"golang.org/x/sys/unix"
 )

+// ProcMapPermissions contains permission settings read from /proc/[pid]/maps
 type ProcMapPermissions struct {
 	// mapping has the [R]ead flag set
 	Read bool
--- a/vendor/github.com/prometheus/procfs/proc_smaps.go
+++ b/vendor/github.com/prometheus/procfs/proc_smaps.go
@ -0,0 +1,165 @@
+// Copyright 2020 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build !windows
+
+package procfs
+
+import (
+	"bufio"
+	"errors"
+	"fmt"
+	"os"
+	"regexp"
+	"strconv"
+	"strings"
+
+	"github.com/prometheus/procfs/internal/util"
+)
+
+var (
+	// match the header line before each mapped zone in /proc/pid/smaps
+	procSMapsHeaderLine = regexp.MustCompile(`^[a-f0-9].*$`)
+)
+
+type ProcSMapsRollup struct {
+	// Amount of the mapping that is currently resident in RAM
+	Rss uint64
+	// Process's proportional share of this mapping
+	Pss uint64
+	// Size in bytes of clean shared pages
+	SharedClean uint64
+	// Size in bytes of dirty shared pages
+	SharedDirty uint64
+	// Size in bytes of clean private pages
+	PrivateClean uint64
+	// Size in bytes of dirty private pages
+	PrivateDirty uint64
+	// Amount of memory currently marked as referenced or accessed
+	Referenced uint64
+	// Amount of memory that does not belong to any file
+	Anonymous uint64
+	// Amount would-be-anonymous memory currently on swap
+	Swap uint64
+	// Process's proportional memory on swap
+	SwapPss uint64
+}
+
+// ProcSMapsRollup reads from /proc/[pid]/smaps_rollup to get summed memory information of the
+// process.
+//
+// If smaps_rollup does not exists (require kernel >= 4.15), the content of /proc/pid/smaps will
+// we read and summed.
+func (p Proc) ProcSMapsRollup() (ProcSMapsRollup, error) {
+	data, err := util.ReadFileNoStat(p.path("smaps_rollup"))
+	if err != nil && os.IsNotExist(err) {
+		return p.procSMapsRollupManual()
+	}
+	if err != nil {
+		return ProcSMapsRollup{}, err
+	}
+
+	lines := strings.Split(string(data), "\n")
+	smaps := ProcSMapsRollup{}
+
+	// skip first line which don't contains information we need
+	lines = lines[1:]
+	for _, line := range lines {
+		if line == "" {
+			continue
+		}
+
+		if err := smaps.parseLine(line); err != nil {
+			return ProcSMapsRollup{}, err
+		}
+	}
+
+	return smaps, nil
+}
+
+// Read /proc/pid/smaps and do the roll-up in Go code.
+func (p Proc) procSMapsRollupManual() (ProcSMapsRollup, error) {
+	file, err := os.Open(p.path("smaps"))
+	if err != nil {
+		return ProcSMapsRollup{}, err
+	}
+	defer file.Close()
+
+	smaps := ProcSMapsRollup{}
+	scan := bufio.NewScanner(file)
+
+	for scan.Scan() {
+		line := scan.Text()
+
+		if procSMapsHeaderLine.MatchString(line) {
+			continue
+		}
+
+		if err := smaps.parseLine(line); err != nil {
+			return ProcSMapsRollup{}, err
+		}
+	}
+
+	return smaps, nil
+}
+
+func (s *ProcSMapsRollup) parseLine(line string) error {
+	kv := strings.SplitN(line, ":", 2)
+	if len(kv) != 2 {
+		fmt.Println(line)
+		return errors.New("invalid net/dev line, missing colon")
+	}
+
+	k := kv[0]
+	if k == "VmFlags" {
+		return nil
+	}
+
+	v := strings.TrimSpace(kv[1])
+	v = strings.TrimRight(v, " kB")
+
+	vKBytes, err := strconv.ParseUint(v, 10, 64)
+	if err != nil {
+		return err
+	}
+	vBytes := vKBytes * 1024
+
+	s.addValue(k, v, vKBytes, vBytes)
+
+	return nil
+}
+
+func (s *ProcSMapsRollup) addValue(k string, vString string, vUint uint64, vUintBytes uint64) {
+	switch k {
+	case "Rss":
+		s.Rss += vUintBytes
+	case "Pss":
+		s.Pss += vUintBytes
+	case "Shared_Clean":
+		s.SharedClean += vUintBytes
+	case "Shared_Dirty":
+		s.SharedDirty += vUintBytes
+	case "Private_Clean":
+		s.PrivateClean += vUintBytes
+	case "Private_Dirty":
+		s.PrivateDirty += vUintBytes
+	case "Referenced":
+		s.Referenced += vUintBytes
+	case "Anonymous":
+		s.Anonymous += vUintBytes
+	case "Swap":
+		s.Swap += vUintBytes
+	case "SwapPss":
+		s.SwapPss += vUintBytes
+	}
+}
--- a/vendor/github.com/prometheus/procfs/sysfs/class_fibrechannel.go
+++ b/vendor/github.com/prometheus/procfs/sysfs/class_fibrechannel.go
@ -0,0 +1,249 @@
+// Copyright 2020 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build !windows
+
+package sysfs
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+
+	"github.com/prometheus/procfs/internal/util"
+)
+
+const fibrechannelClassPath = "class/fc_host"
+
+type FibreChannelCounters struct {
+	DumpedFrames          uint64 // /sys/class/fc_host/<Name>/statistics/dumped_frames
+	ErrorFrames           uint64 // /sys/class/fc_host/<Name>/statistics/error_frames
+	InvalidCRCCount       uint64 // /sys/class/fc_host/<Name>/statistics/invalid_crc_count
+	RXFrames              uint64 // /sys/class/fc_host/<Name>/statistics/rx_frames
+	RXWords               uint64 // /sys/class/fc_host/<Name>/statistics/rx_words
+	TXFrames              uint64 // /sys/class/fc_host/<Name>/statistics/tx_frames
+	TXWords               uint64 // /sys/class/fc_host/<Name>/statistics/tx_words
+	SecondsSinceLastReset uint64 // /sys/class/fc_host/<Name>/statistics/seconds_since_last_reset
+	InvalidTXWordCount    uint64 // /sys/class/fc_host/<Name>/statistics/invalid_tx_word_count
+	LinkFailureCount      uint64 // /sys/class/fc_host/<Name>/statistics/link_failure_count
+	LossOfSyncCount       uint64 // /sys/class/fc_host/<Name>/statistics/loss_of_sync_count
+	LossOfSignalCount     uint64 // /sys/class/fc_host/<Name>/statistics/loss_of_signal_count
+	NosCount              uint64 // /sys/class/fc_host/<Name>/statistics/nos_count
+	FCPPacketAborts       uint64 // / sys/class/fc_host/<Name>/statistics/fcp_packet_aborts
+}
+
+type FibreChannelHost struct {
+	Name             string               // /sys/class/fc_host/<Name>
+	Speed            string               // /sys/class/fc_host/<Name>/speed
+	PortState        string               // /sys/class/fc_host/<Name>/port_state
+	PortType         string               // /sys/class/fc_host/<Name>/port_type
+	SymbolicName     string               // /sys/class/fc_host/<Name>/symbolic_name
+	NodeName         string               // /sys/class/fc_host/<Name>/node_name
+	PortID           string               // /sys/class/fc_host/<Name>/port_id
+	PortName         string               // /sys/class/fc_host/<Name>/port_name
+	FabricName       string               // /sys/class/fc_host/<Name>/fabric_name
+	DevLossTMO       string               // /sys/class/fc_host/<Name>/dev_loss_tmo
+	SupportedClasses string               // /sys/class/fc_host/<Name>/supported_classes
+	SupportedSpeeds  string               // /sys/class/fc_host/<Name>/supported_speeds
+	Counters         FibreChannelCounters // /sys/class/fc_host/<Name>/statistics/*
+}
+
+type FibreChannelClass map[string]FibreChannelHost
+
+// FibreChannelClass parses everything in /sys/class/fc_host.
+func (fs FS) FibreChannelClass() (FibreChannelClass, error) {
+	path := fs.sys.Path(fibrechannelClassPath)
+
+	dirs, err := ioutil.ReadDir(path)
+	if err != nil {
+		return nil, err
+	}
+
+	fcc := make(FibreChannelClass, len(dirs))
+	for _, d := range dirs {
+		host, err := fs.parseFibreChannelHost(d.Name())
+		if err != nil {
+			return nil, err
+		}
+
+		fcc[host.Name] = *host
+	}
+
+	return fcc, nil
+}
+
+// Parse a single FC host
+func (fs FS) parseFibreChannelHost(name string) (*FibreChannelHost, error) {
+	path := fs.sys.Path(fibrechannelClassPath, name)
+	host := FibreChannelHost{Name: name}
+
+	for _, f := range [...]string{"speed", "port_state", "port_type", "node_name", "port_id", "port_name", "fabric_name", "dev_loss_tmo", "symbolic_name", "supported_classes", "supported_speeds"} {
+		name := filepath.Join(path, f)
+		value, err := util.SysReadFile(name)
+		if err != nil {
+			return nil, fmt.Errorf("failed to read file %q: %v", name, err)
+		}
+
+		switch f {
+		case "speed":
+			host.Speed = value
+		case "port_state":
+			host.PortState = value
+		case "port_type":
+			host.PortType = value
+		case "node_name":
+			if len(value) > 2 {
+				value = value[2:]
+			}
+			host.NodeName = value
+		case "port_id":
+			if len(value) > 2 {
+				value = value[2:]
+			}
+			host.PortID = value
+		case "port_name":
+			if len(value) > 2 {
+				value = value[2:]
+			}
+			host.PortName = value
+		case "fabric_name":
+			if len(value) > 2 {
+				value = value[2:]
+			}
+			host.FabricName = value
+		case "dev_loss_tmo":
+			host.DevLossTMO = value
+		case "supported_classes":
+			host.SupportedClasses = value
+		case "supported_speeds":
+			host.SupportedSpeeds = value
+		case "symbolic_name":
+			host.SymbolicName = value
+		}
+	}
+
+	counters, err := parseFibreChannelStatistics(path)
+	if err != nil {
+		return nil, err
+	}
+	host.Counters = *counters
+
+	return &host, nil
+}
+
+// parseFibreChannelStatistics parses metrics from a single FC host.
+func parseFibreChannelStatistics(hostPath string) (*FibreChannelCounters, error) {
+	var counters FibreChannelCounters
+
+	path := filepath.Join(hostPath, "statistics")
+	files, err := ioutil.ReadDir(path)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, f := range files {
+		if !f.Mode().IsRegular() || f.Name() == "reset_statistics" {
+			continue
+		}
+
+		name := filepath.Join(path, f.Name())
+		value, err := util.SysReadFile(name)
+		if err != nil {
+			// there are some write-only files in this directory; we can safely skip over them
+			if os.IsNotExist(err) || err.Error() == "operation not supported" || err.Error() == "invalid argument" {
+				continue
+			}
+			return nil, fmt.Errorf("failed to read file %q: %v", name, err)
+		}
+
+		vp := util.NewValueParser(value)
+
+		// Below switch was automatically generated. Don't need everything in there yet, so the unwanted bits are commented out.
+		switch f.Name() {
+		case "dumped_frames":
+			counters.DumpedFrames = *vp.PUInt64()
+		case "error_frames":
+			counters.ErrorFrames = *vp.PUInt64()
+		/*
+			case "fc_no_free_exch":
+				counters.FcNoFreeExch = *vp.PUInt64()
+			case "fc_no_free_exch_xid":
+				counters.FcNoFreeExchXid = *vp.PUInt64()
+			case "fc_non_bls_resp":
+				counters.FcNonBlsResp = *vp.PUInt64()
+			case "fc_seq_not_found":
+				counters.FcSeqNotFound = *vp.PUInt64()
+			case "fc_xid_busy":
+				counters.FcXidBusy = *vp.PUInt64()
+			case "fc_xid_not_found":
+				counters.FcXidNotFound = *vp.PUInt64()
+			case "fcp_control_requests":
+				counters.FcpControlRequests = *vp.PUInt64()
+			case "fcp_frame_alloc_failures":
+				counters.FcpFrameAllocFailures = *vp.PUInt64()
+			case "fcp_input_megabytes":
+				counters.FcpInputMegabytes = *vp.PUInt64()
+			case "fcp_input_requests":
+				counters.FcpInputRequests = *vp.PUInt64()
+			case "fcp_output_megabytes":
+				counters.FcpOutputMegabytes = *vp.PUInt64()
+			case "fcp_output_requests":
+				counters.FcpOutputRequests = *vp.PUInt64()
+		*/
+		case "fcp_packet_aborts":
+			counters.FCPPacketAborts = *vp.PUInt64()
+			/*
+				case "fcp_packet_alloc_failures":
+					counters.FcpPacketAllocFailures = *vp.PUInt64()
+			*/
+		case "invalid_tx_word_count":
+			counters.InvalidTXWordCount = *vp.PUInt64()
+		case "invalid_crc_count":
+			counters.InvalidCRCCount = *vp.PUInt64()
+		case "link_failure_count":
+			counters.LinkFailureCount = *vp.PUInt64()
+		/*
+			case "lip_count":
+					counters.LipCount = *vp.PUInt64()
+		*/
+		case "loss_of_signal_count":
+			counters.LossOfSignalCount = *vp.PUInt64()
+		case "loss_of_sync_count":
+			counters.LossOfSyncCount = *vp.PUInt64()
+		case "nos_count":
+			counters.NosCount = *vp.PUInt64()
+		/*
+			case "prim_seq_protocol_err_count":
+				counters.PrimSeqProtocolErrCount = *vp.PUInt64()
+		*/
+		case "rx_frames":
+			counters.RXFrames = *vp.PUInt64()
+		case "rx_words":
+			counters.RXWords = *vp.PUInt64()
+		case "seconds_since_last_reset":
+			counters.SecondsSinceLastReset = *vp.PUInt64()
+		case "tx_frames":
+			counters.TXFrames = *vp.PUInt64()
+		case "tx_words":
+			counters.TXWords = *vp.PUInt64()
+		}
+
+		if err := vp.Err(); err != nil {
+			return nil, err
+		}
+
+	}
+
+	return &counters, nil
+}
--- a/vendor/github.com/prometheus/procfs/sysfs/class_infiniband.go
+++ b/vendor/github.com/prometheus/procfs/sysfs/class_infiniband.go
@ -42,22 +42,26 @@ type InfiniBandCounters struct {
 	LegacyPortXmitData64           *uint64 // counters_ext/port_xmit_data_64
 	LegacyPortXmitPackets64        *uint64 // counters_ext/port_xmit_packets_64

-	LinkDowned               *uint64 // counters/link_downed
-	LinkErrorRecovery        *uint64 // counters/link_error_recovery
-	MulticastRcvPackets      *uint64 // counters/multicast_rcv_packets
-	MulticastXmitPackets     *uint64 // counters/multicast_xmit_packets
-	PortRcvConstraintErrors  *uint64 // counters/port_rcv_constraint_errors
-	PortRcvData              *uint64 // counters/port_rcv_data
-	PortRcvDiscards          *uint64 // counters/port_rcv_discards
-	PortRcvErrors            *uint64 // counters/port_rcv_errors
-	PortRcvPackets           *uint64 // counters/port_rcv_packets
-	PortXmitConstraintErrors *uint64 // counters/port_xmit_constraint_errors
-	PortXmitData             *uint64 // counters/port_xmit_data
-	PortXmitDiscards         *uint64 // counters/port_xmit_discards
-	PortXmitPackets          *uint64 // counters/port_xmit_packets
-	PortXmitWait             *uint64 // counters/port_xmit_wait
-	UnicastRcvPackets        *uint64 // counters/unicast_rcv_packets
-	UnicastXmitPackets       *uint64 // counters/unicast_xmit_packets
+	LinkDowned                  *uint64 // counters/link_downed
+	LinkErrorRecovery           *uint64 // counters/link_error_recovery
+	MulticastRcvPackets         *uint64 // counters/multicast_rcv_packets
+	MulticastXmitPackets        *uint64 // counters/multicast_xmit_packets
+	PortRcvConstraintErrors     *uint64 // counters/port_rcv_constraint_errors
+	PortRcvData                 *uint64 // counters/port_rcv_data
+	PortRcvDiscards             *uint64 // counters/port_rcv_discards
+	PortRcvErrors               *uint64 // counters/port_rcv_errors
+	PortRcvPackets              *uint64 // counters/port_rcv_packets
+	PortRcvRemotePhysicalErrors *uint64 // counters/port_rcv_remote_physical_errors
+	PortRcvSwitchRelayErrors    *uint64 // counters/port_rcv_switch_relay_errors
+	PortXmitConstraintErrors    *uint64 // counters/port_xmit_constraint_errors
+	PortXmitData                *uint64 // counters/port_xmit_data
+	PortXmitDiscards            *uint64 // counters/port_xmit_discards
+	PortXmitPackets             *uint64 // counters/port_xmit_packets
+	PortXmitWait                *uint64 // counters/port_xmit_wait
+	SymbolError                 *uint64 // counters/symbol_error
+	UnicastRcvPackets           *uint64 // counters/unicast_rcv_packets
+	UnicastXmitPackets          *uint64 // counters/unicast_xmit_packets
+	VL15Dropped                 *uint64 // counters/VL15_dropped
 }

 // InfiniBandPort contains info from files in
@ -287,6 +291,10 @@ func parseInfiniBandCounters(portPath string) (*InfiniBandCounters, error) {
 			counters.PortRcvErrors = vp.PUInt64()
 		case "port_rcv_packets":
 			counters.PortRcvPackets = vp.PUInt64()
+		case "port_rcv_remote_physical_errors":
+			counters.PortRcvRemotePhysicalErrors = vp.PUInt64()
+		case "port_rcv_switch_relay_errors":
+			counters.PortRcvSwitchRelayErrors = vp.PUInt64()
 		case "port_xmit_constraint_errors":
 			counters.PortXmitConstraintErrors = vp.PUInt64()
 		case "port_xmit_data":
@ -300,10 +308,14 @@ func parseInfiniBandCounters(portPath string) (*InfiniBandCounters, error) {
 			counters.PortXmitPackets = vp.PUInt64()
 		case "port_xmit_wait":
 			counters.PortXmitWait = vp.PUInt64()
+		case "symbol_error":
+			counters.SymbolError = vp.PUInt64()
 		case "unicast_rcv_packets":
 			counters.UnicastRcvPackets = vp.PUInt64()
 		case "unicast_xmit_packets":
 			counters.UnicastXmitPackets = vp.PUInt64()
+		case "VL15_dropped":
+			counters.VL15Dropped = vp.PUInt64()
 		}

 		if err := vp.Err(); err != nil {
--- a/vendor/github.com/prometheus/procfs/sysfs/class_power_supply.go
+++ b/vendor/github.com/prometheus/procfs/sysfs/class_power_supply.go
@ -110,7 +110,7 @@ func (fs FS) PowerSupplyClass() (PowerSupplyClass, error) {

 	dirs, err := ioutil.ReadDir(path)
 	if err != nil {
-		return nil, fmt.Errorf("failed to list power supplies at %q: %v", path, err)
+		return nil, err
 	}

 	psc := make(PowerSupplyClass, len(dirs))
--- a/vendor/github.com/prometheus/procfs/sysfs/class_thermal.go
+++ b/vendor/github.com/prometheus/procfs/sysfs/class_thermal.go
@ -16,9 +16,11 @@
 package sysfs

 import (
+	"errors"
 	"os"
 	"path/filepath"
 	"strings"
+	"syscall"

 	"github.com/prometheus/procfs/internal/util"
 )
@ -29,7 +31,7 @@ import (
 type ClassThermalZoneStats struct {
 	Name    string  // The name of the zone from the directory structure.
 	Type    string  // The type of thermal zone.
-	Temp    uint64  // Temperature in millidegree Celsius.
+	Temp    int64   // Temperature in millidegree Celsius.
 	Policy  string  // One of the various thermal governors used for a particular zone.
 	Mode    *bool   // Optional: One of the predefined values in [enabled, disabled].
 	Passive *uint64 // Optional: millidegrees Celsius. (0 for disabled, > 1000 for enabled+value)
@ -39,20 +41,20 @@ type ClassThermalZoneStats struct {
 func (fs FS) ClassThermalZoneStats() ([]ClassThermalZoneStats, error) {
 	zones, err := filepath.Glob(fs.sys.Path("class/thermal/thermal_zone[0-9]*"))
 	if err != nil {
-		return []ClassThermalZoneStats{}, err
+		return nil, err
 	}

-	var zoneStats = ClassThermalZoneStats{}
-	stats := make([]ClassThermalZoneStats, len(zones))
-	for i, zone := range zones {
-		zoneName := strings.TrimPrefix(filepath.Base(zone), "thermal_zone")
-
-		zoneStats, err = parseClassThermalZone(zone)
+	stats := make([]ClassThermalZoneStats, 0, len(zones))
+	for _, zone := range zones {
+		zoneStats, err := parseClassThermalZone(zone)
 		if err != nil {
-			return []ClassThermalZoneStats{}, err
+			if errors.Is(err, syscall.ENODATA) {
+				continue
+			}
+			return nil, err
 		}
-		zoneStats.Name = zoneName
-		stats[i] = zoneStats
+		zoneStats.Name = strings.TrimPrefix(filepath.Base(zone), "thermal_zone")
+		stats = append(stats, zoneStats)
 	}
 	return stats, nil
 }
@ -67,7 +69,7 @@ func parseClassThermalZone(zone string) (ClassThermalZoneStats, error) {
 	if err != nil {
 		return ClassThermalZoneStats{}, err
 	}
-	zoneTemp, err := util.ReadUintFromFile(filepath.Join(zone, "temp"))
+	zoneTemp, err := util.ReadIntFromFile(filepath.Join(zone, "temp"))
 	if err != nil {
 		return ClassThermalZoneStats{}, err
 	}
--- a/vendor/golang.org/x/sys/unix/syscall_linux.go
+++ b/vendor/golang.org/x/sys/unix/syscall_linux.go
@ -97,6 +97,12 @@ func IoctlSetRTCTime(fd int, value *RTCTime) error {
 	return err
 }

+func IoctlSetRTCWkAlrm(fd int, value *RTCWkAlrm) error {
+	err := ioctl(fd, RTC_WKALM_SET, uintptr(unsafe.Pointer(value)))
+	runtime.KeepAlive(value)
+	return err
+}
+
 func IoctlGetUint32(fd int, req uint) (uint32, error) {
 	var value uint32
 	err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
@ -109,6 +115,12 @@ func IoctlGetRTCTime(fd int) (*RTCTime, error) {
 	return &value, err
 }

+func IoctlGetRTCWkAlrm(fd int) (*RTCWkAlrm, error) {
+	var value RTCWkAlrm
+	err := ioctl(fd, RTC_WKALM_RD, uintptr(unsafe.Pointer(&value)))
+	return &value, err
+}
+
 //sys	Linkat(olddirfd int, oldpath string, newdirfd int, newpath string, flags int) (err error)

 func Link(oldpath string, newpath string) (err error) {
--- a/vendor/golang.org/x/sys/unix/zerrors_linux.go
+++ b/vendor/golang.org/x/sys/unix/zerrors_linux.go
@ -160,78 +160,28 @@ const (
 	BPF_A                                       = 0x10
 	BPF_ABS                                     = 0x20
 	BPF_ADD                                     = 0x0
-	BPF_ADJ_ROOM_ENCAP_L2_MASK                  = 0xff
-	BPF_ADJ_ROOM_ENCAP_L2_SHIFT                 = 0x38
 	BPF_ALU                                     = 0x4
 	BPF_ALU64                                   = 0x7
 	BPF_AND                                     = 0x50
-	BPF_ANY                                     = 0x0
 	BPF_ARSH                                    = 0xc0
 	BPF_B                                       = 0x10
 	BPF_BUILD_ID_SIZE                           = 0x14
 	BPF_CALL                                    = 0x80
-	BPF_DEVCG_ACC_MKNOD                         = 0x1
-	BPF_DEVCG_ACC_READ                          = 0x2
-	BPF_DEVCG_ACC_WRITE                         = 0x4
-	BPF_DEVCG_DEV_BLOCK                         = 0x1
-	BPF_DEVCG_DEV_CHAR                          = 0x2
 	BPF_DIV                                     = 0x30
 	BPF_DW                                      = 0x18
 	BPF_END                                     = 0xd0
-	BPF_EXIST                                   = 0x2
 	BPF_EXIT                                    = 0x90
-	BPF_FLOW_DISSECTOR_F_PARSE_1ST_FRAG         = 0x1
-	BPF_FLOW_DISSECTOR_F_STOP_AT_ENCAP          = 0x4
-	BPF_FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL     = 0x2
 	BPF_FROM_BE                                 = 0x8
 	BPF_FROM_LE                                 = 0x0
 	BPF_FS_MAGIC                                = 0xcafe4a11
-	BPF_F_ADJ_ROOM_ENCAP_L3_IPV4                = 0x2
-	BPF_F_ADJ_ROOM_ENCAP_L3_IPV6                = 0x4
-	BPF_F_ADJ_ROOM_ENCAP_L4_GRE                 = 0x8
-	BPF_F_ADJ_ROOM_ENCAP_L4_UDP                 = 0x10
-	BPF_F_ADJ_ROOM_FIXED_GSO                    = 0x1
 	BPF_F_ALLOW_MULTI                           = 0x2
 	BPF_F_ALLOW_OVERRIDE                        = 0x1
 	BPF_F_ANY_ALIGNMENT                         = 0x2
-	BPF_F_CLONE                                 = 0x200
-	BPF_F_CTXLEN_MASK                           = 0xfffff00000000
-	BPF_F_CURRENT_CPU                           = 0xffffffff
-	BPF_F_CURRENT_NETNS                         = -0x1
-	BPF_F_DONT_FRAGMENT                         = 0x4
-	BPF_F_FAST_STACK_CMP                        = 0x200
-	BPF_F_HDR_FIELD_MASK                        = 0xf
-	BPF_F_INDEX_MASK                            = 0xffffffff
-	BPF_F_INGRESS                               = 0x1
-	BPF_F_INVALIDATE_HASH                       = 0x2
-	BPF_F_LOCK                                  = 0x4
-	BPF_F_MARK_ENFORCE                          = 0x40
-	BPF_F_MARK_MANGLED_0                        = 0x20
-	BPF_F_MMAPABLE                              = 0x400
-	BPF_F_NO_COMMON_LRU                         = 0x2
-	BPF_F_NO_PREALLOC                           = 0x1
-	BPF_F_NUMA_NODE                             = 0x4
-	BPF_F_PSEUDO_HDR                            = 0x10
 	BPF_F_QUERY_EFFECTIVE                       = 0x1
-	BPF_F_RDONLY                                = 0x8
-	BPF_F_RDONLY_PROG                           = 0x80
-	BPF_F_RECOMPUTE_CSUM                        = 0x1
 	BPF_F_REPLACE                               = 0x4
-	BPF_F_REUSE_STACKID                         = 0x400
-	BPF_F_SEQ_NUMBER                            = 0x8
-	BPF_F_SKIP_FIELD_MASK                       = 0xff
-	BPF_F_STACK_BUILD_ID                        = 0x20
 	BPF_F_STRICT_ALIGNMENT                      = 0x1
-	BPF_F_SYSCTL_BASE_NAME                      = 0x1
 	BPF_F_TEST_RND_HI32                         = 0x4
 	BPF_F_TEST_STATE_FREQ                       = 0x8
-	BPF_F_TUNINFO_IPV6                          = 0x1
-	BPF_F_USER_BUILD_ID                         = 0x800
-	BPF_F_USER_STACK                            = 0x100
-	BPF_F_WRONLY                                = 0x10
-	BPF_F_WRONLY_PROG                           = 0x100
-	BPF_F_ZERO_CSUM_TX                          = 0x2
-	BPF_F_ZERO_SEED                             = 0x40
 	BPF_H                                       = 0x8
 	BPF_IMM                                     = 0x0
 	BPF_IND                                     = 0x40
@ -267,7 +217,6 @@ const (
 	BPF_MUL                                     = 0x20
 	BPF_NEG                                     = 0x80
 	BPF_NET_OFF                                 = -0x100000
-	BPF_NOEXIST                                 = 0x1
 	BPF_OBJ_NAME_LEN                            = 0x10
 	BPF_OR                                      = 0x40
 	BPF_PSEUDO_CALL                             = 0x1
@ -275,12 +224,6 @@ const (
 	BPF_PSEUDO_MAP_VALUE                        = 0x2
 	BPF_RET                                     = 0x6
 	BPF_RSH                                     = 0x70
-	BPF_SK_STORAGE_GET_F_CREATE                 = 0x1
-	BPF_SOCK_OPS_ALL_CB_FLAGS                   = 0xf
-	BPF_SOCK_OPS_RETRANS_CB_FLAG                = 0x2
-	BPF_SOCK_OPS_RTO_CB_FLAG                    = 0x1
-	BPF_SOCK_OPS_RTT_CB_FLAG                    = 0x8
-	BPF_SOCK_OPS_STATE_CB_FLAG                  = 0x4
 	BPF_ST                                      = 0x2
 	BPF_STX                                     = 0x3
 	BPF_SUB                                     = 0x10
@ -378,12 +321,14 @@ const (
 	CLOCK_TXINT                                 = 0x3
 	CLONE_ARGS_SIZE_VER0                        = 0x40
 	CLONE_ARGS_SIZE_VER1                        = 0x50
+	CLONE_ARGS_SIZE_VER2                        = 0x58
 	CLONE_CHILD_CLEARTID                        = 0x200000
 	CLONE_CHILD_SETTID                          = 0x1000000
 	CLONE_CLEAR_SIGHAND                         = 0x100000000
 	CLONE_DETACHED                              = 0x400000
 	CLONE_FILES                                 = 0x400
 	CLONE_FS                                    = 0x200
+	CLONE_INTO_CGROUP                           = 0x200000000
 	CLONE_IO                                    = 0x80000000
 	CLONE_NEWCGROUP                             = 0x2000000
 	CLONE_NEWIPC                                = 0x8000000
@ -598,7 +543,9 @@ const (
 	FAN_DELETE                                  = 0x200
 	FAN_DELETE_SELF                             = 0x400
 	FAN_DENY                                    = 0x2
+	FAN_DIR_MODIFY                              = 0x80000
 	FAN_ENABLE_AUDIT                            = 0x40
+	FAN_EVENT_INFO_TYPE_DFID_NAME               = 0x2
 	FAN_EVENT_INFO_TYPE_FID                     = 0x1
 	FAN_EVENT_METADATA_LEN                      = 0x18
 	FAN_EVENT_ON_CHILD                          = 0x8000000
@ -2108,8 +2055,6 @@ const (
 	TCOFLUSH                                    = 0x1
 	TCOOFF                                      = 0x0
 	TCOON                                       = 0x1
-	TCP_BPF_IW                                  = 0x3e9
-	TCP_BPF_SNDCWND_CLAMP                       = 0x3ea
 	TCP_CC_INFO                                 = 0x1a
 	TCP_CM_INQ                                  = 0x24
 	TCP_CONGESTION                              = 0xd
@ -2384,8 +2329,9 @@ const (
 	XDP_COPY                                    = 0x2
 	XDP_FLAGS_DRV_MODE                          = 0x4
 	XDP_FLAGS_HW_MODE                           = 0x8
-	XDP_FLAGS_MASK                              = 0xf
+	XDP_FLAGS_MASK                              = 0x1f
 	XDP_FLAGS_MODES                             = 0xe
+	XDP_FLAGS_REPLACE                           = 0x10
 	XDP_FLAGS_SKB_MODE                          = 0x2
 	XDP_FLAGS_UPDATE_IF_NOEXIST                 = 0x1
 	XDP_MMAP_OFFSETS                            = 0x1
--- a/vendor/golang.org/x/sys/unix/zerrors_linux_386.go
+++ b/vendor/golang.org/x/sys/unix/zerrors_linux_386.go
@ -75,6 +75,7 @@ const (
 	FP_XSTATE_MAGIC2                 = 0x46505845
 	FS_IOC_ENABLE_VERITY             = 0x40806685
 	FS_IOC_GETFLAGS                  = 0x80046601
+	FS_IOC_GET_ENCRYPTION_NONCE      = 0x8010661b
 	FS_IOC_GET_ENCRYPTION_POLICY     = 0x400c6615
 	FS_IOC_GET_ENCRYPTION_PWSALT     = 0x40106614
 	FS_IOC_SET_ENCRYPTION_POLICY     = 0x800c6613
--- a/vendor/golang.org/x/sys/unix/zerrors_linux_amd64.go
+++ b/vendor/golang.org/x/sys/unix/zerrors_linux_amd64.go
@ -75,6 +75,7 @@ const (
 	FP_XSTATE_MAGIC2                 = 0x46505845
 	FS_IOC_ENABLE_VERITY             = 0x40806685
 	FS_IOC_GETFLAGS                  = 0x80086601
+	FS_IOC_GET_ENCRYPTION_NONCE      = 0x8010661b
 	FS_IOC_GET_ENCRYPTION_POLICY     = 0x400c6615
 	FS_IOC_GET_ENCRYPTION_PWSALT     = 0x40106614
 	FS_IOC_SET_ENCRYPTION_POLICY     = 0x800c6613
--- a/vendor/golang.org/x/sys/unix/zerrors_linux_arm.go
+++ b/vendor/golang.org/x/sys/unix/zerrors_linux_arm.go
@ -74,6 +74,7 @@ const (
 	FLUSHO                           = 0x1000
 	FS_IOC_ENABLE_VERITY             = 0x40806685
 	FS_IOC_GETFLAGS                  = 0x80046601
+	FS_IOC_GET_ENCRYPTION_NONCE      = 0x8010661b
 	FS_IOC_GET_ENCRYPTION_POLICY     = 0x400c6615
 	FS_IOC_GET_ENCRYPTION_PWSALT     = 0x40106614
 	FS_IOC_SET_ENCRYPTION_POLICY     = 0x800c6613
--- a/vendor/golang.org/x/sys/unix/zerrors_linux_arm64.go
+++ b/vendor/golang.org/x/sys/unix/zerrors_linux_arm64.go
@ -77,6 +77,7 @@ const (
 	FPSIMD_MAGIC                     = 0x46508001
 	FS_IOC_ENABLE_VERITY             = 0x40806685
 	FS_IOC_GETFLAGS                  = 0x80086601
+	FS_IOC_GET_ENCRYPTION_NONCE      = 0x8010661b
 	FS_IOC_GET_ENCRYPTION_POLICY     = 0x400c6615
 	FS_IOC_GET_ENCRYPTION_PWSALT     = 0x40106614
 	FS_IOC_SET_ENCRYPTION_POLICY     = 0x800c6613
--- a/vendor/golang.org/x/sys/unix/zerrors_linux_mips.go
+++ b/vendor/golang.org/x/sys/unix/zerrors_linux_mips.go
@ -74,6 +74,7 @@ const (
 	FLUSHO                           = 0x2000
 	FS_IOC_ENABLE_VERITY             = 0x80806685
 	FS_IOC_GETFLAGS                  = 0x40046601
+	FS_IOC_GET_ENCRYPTION_NONCE      = 0x4010661b
 	FS_IOC_GET_ENCRYPTION_POLICY     = 0x800c6615
 	FS_IOC_GET_ENCRYPTION_PWSALT     = 0x80106614
 	FS_IOC_SET_ENCRYPTION_POLICY     = 0x400c6613
--- a/vendor/golang.org/x/sys/unix/zerrors_linux_mips64.go
+++ b/vendor/golang.org/x/sys/unix/zerrors_linux_mips64.go
@ -74,6 +74,7 @@ const (
 	FLUSHO                           = 0x2000
 	FS_IOC_ENABLE_VERITY             = 0x80806685
 	FS_IOC_GETFLAGS                  = 0x40086601
+	FS_IOC_GET_ENCRYPTION_NONCE      = 0x4010661b
 	FS_IOC_GET_ENCRYPTION_POLICY     = 0x800c6615
 	FS_IOC_GET_ENCRYPTION_PWSALT     = 0x80106614
 	FS_IOC_SET_ENCRYPTION_POLICY     = 0x400c6613
--- a/vendor/golang.org/x/sys/unix/zerrors_linux_mips64le.go
+++ b/vendor/golang.org/x/sys/unix/zerrors_linux_mips64le.go
@ -74,6 +74,7 @@ const (
 	FLUSHO                           = 0x2000
 	FS_IOC_ENABLE_VERITY             = 0x80806685
 	FS_IOC_GETFLAGS                  = 0x40086601
+	FS_IOC_GET_ENCRYPTION_NONCE      = 0x4010661b
 	FS_IOC_GET_ENCRYPTION_POLICY     = 0x800c6615
 	FS_IOC_GET_ENCRYPTION_PWSALT     = 0x80106614
 	FS_IOC_SET_ENCRYPTION_POLICY     = 0x400c6613
--- a/vendor/golang.org/x/sys/unix/zerrors_linux_mipsle.go
+++ b/vendor/golang.org/x/sys/unix/zerrors_linux_mipsle.go
@ -74,6 +74,7 @@ const (
 	FLUSHO                           = 0x2000
 	FS_IOC_ENABLE_VERITY             = 0x80806685
 	FS_IOC_GETFLAGS                  = 0x40046601
+	FS_IOC_GET_ENCRYPTION_NONCE      = 0x4010661b
 	FS_IOC_GET_ENCRYPTION_POLICY     = 0x800c6615
 	FS_IOC_GET_ENCRYPTION_PWSALT     = 0x80106614
 	FS_IOC_SET_ENCRYPTION_POLICY     = 0x400c6613
--- a/vendor/golang.org/x/sys/unix/zerrors_linux_ppc64.go
+++ b/vendor/golang.org/x/sys/unix/zerrors_linux_ppc64.go
@ -74,6 +74,7 @@ const (
 	FLUSHO                           = 0x800000
 	FS_IOC_ENABLE_VERITY             = 0x80806685
 	FS_IOC_GETFLAGS                  = 0x40086601
+	FS_IOC_GET_ENCRYPTION_NONCE      = 0x4010661b
 	FS_IOC_GET_ENCRYPTION_POLICY     = 0x800c6615
 	FS_IOC_GET_ENCRYPTION_PWSALT     = 0x80106614
 	FS_IOC_SET_ENCRYPTION_POLICY     = 0x400c6613
--- a/vendor/golang.org/x/sys/unix/zerrors_linux_ppc64le.go
+++ b/vendor/golang.org/x/sys/unix/zerrors_linux_ppc64le.go
@ -74,6 +74,7 @@ const (
 	FLUSHO                           = 0x800000
 	FS_IOC_ENABLE_VERITY             = 0x80806685
 	FS_IOC_GETFLAGS                  = 0x40086601
+	FS_IOC_GET_ENCRYPTION_NONCE      = 0x4010661b
 	FS_IOC_GET_ENCRYPTION_POLICY     = 0x800c6615
 	FS_IOC_GET_ENCRYPTION_PWSALT     = 0x80106614
 	FS_IOC_SET_ENCRYPTION_POLICY     = 0x400c6613
--- a/vendor/golang.org/x/sys/unix/zerrors_linux_riscv64.go
+++ b/vendor/golang.org/x/sys/unix/zerrors_linux_riscv64.go
@ -74,6 +74,7 @@ const (
 	FLUSHO                           = 0x1000
 	FS_IOC_ENABLE_VERITY             = 0x40806685
 	FS_IOC_GETFLAGS                  = 0x80086601
+	FS_IOC_GET_ENCRYPTION_NONCE      = 0x8010661b
 	FS_IOC_GET_ENCRYPTION_POLICY     = 0x400c6615
 	FS_IOC_GET_ENCRYPTION_PWSALT     = 0x40106614
 	FS_IOC_SET_ENCRYPTION_POLICY     = 0x800c6613
--- a/vendor/golang.org/x/sys/unix/zerrors_linux_s390x.go
+++ b/vendor/golang.org/x/sys/unix/zerrors_linux_s390x.go
@ -74,6 +74,7 @@ const (
 	FLUSHO                           = 0x1000
 	FS_IOC_ENABLE_VERITY             = 0x40806685
 	FS_IOC_GETFLAGS                  = 0x80086601
+	FS_IOC_GET_ENCRYPTION_NONCE      = 0x8010661b
 	FS_IOC_GET_ENCRYPTION_POLICY     = 0x400c6615
 	FS_IOC_GET_ENCRYPTION_PWSALT     = 0x40106614
 	FS_IOC_SET_ENCRYPTION_POLICY     = 0x800c6613
--- a/vendor/golang.org/x/sys/unix/zerrors_linux_sparc64.go
+++ b/vendor/golang.org/x/sys/unix/zerrors_linux_sparc64.go
@ -78,6 +78,7 @@ const (
 	FLUSHO                           = 0x1000
 	FS_IOC_ENABLE_VERITY             = 0x80806685
 	FS_IOC_GETFLAGS                  = 0x40086601
+	FS_IOC_GET_ENCRYPTION_NONCE      = 0x4010661b
 	FS_IOC_GET_ENCRYPTION_POLICY     = 0x800c6615
 	FS_IOC_GET_ENCRYPTION_PWSALT     = 0x80106614
 	FS_IOC_SET_ENCRYPTION_POLICY     = 0x400c6613
--- a/vendor/golang.org/x/sys/unix/ztypes_linux.go
+++ b/vendor/golang.org/x/sys/unix/ztypes_linux.go
@ -1871,175 +1871,249 @@ const (
 )

 const (
-	BPF_REG_0                             = 0x0
-	BPF_REG_1                             = 0x1
-	BPF_REG_2                             = 0x2
-	BPF_REG_3                             = 0x3
-	BPF_REG_4                             = 0x4
-	BPF_REG_5                             = 0x5
-	BPF_REG_6                             = 0x6
-	BPF_REG_7                             = 0x7
-	BPF_REG_8                             = 0x8
-	BPF_REG_9                             = 0x9
-	BPF_REG_10                            = 0xa
-	BPF_MAP_CREATE                        = 0x0
-	BPF_MAP_LOOKUP_ELEM                   = 0x1
-	BPF_MAP_UPDATE_ELEM                   = 0x2
-	BPF_MAP_DELETE_ELEM                   = 0x3
-	BPF_MAP_GET_NEXT_KEY                  = 0x4
-	BPF_PROG_LOAD                         = 0x5
-	BPF_OBJ_PIN                           = 0x6
-	BPF_OBJ_GET                           = 0x7
-	BPF_PROG_ATTACH                       = 0x8
-	BPF_PROG_DETACH                       = 0x9
-	BPF_PROG_TEST_RUN                     = 0xa
-	BPF_PROG_GET_NEXT_ID                  = 0xb
-	BPF_MAP_GET_NEXT_ID                   = 0xc
-	BPF_PROG_GET_FD_BY_ID                 = 0xd
-	BPF_MAP_GET_FD_BY_ID                  = 0xe
-	BPF_OBJ_GET_INFO_BY_FD                = 0xf
-	BPF_PROG_QUERY                        = 0x10
-	BPF_RAW_TRACEPOINT_OPEN               = 0x11
-	BPF_BTF_LOAD                          = 0x12
-	BPF_BTF_GET_FD_BY_ID                  = 0x13
-	BPF_TASK_FD_QUERY                     = 0x14
-	BPF_MAP_LOOKUP_AND_DELETE_ELEM        = 0x15
-	BPF_MAP_FREEZE                        = 0x16
-	BPF_BTF_GET_NEXT_ID                   = 0x17
-	BPF_MAP_TYPE_UNSPEC                   = 0x0
-	BPF_MAP_TYPE_HASH                     = 0x1
-	BPF_MAP_TYPE_ARRAY                    = 0x2
-	BPF_MAP_TYPE_PROG_ARRAY               = 0x3
-	BPF_MAP_TYPE_PERF_EVENT_ARRAY         = 0x4
-	BPF_MAP_TYPE_PERCPU_HASH              = 0x5
-	BPF_MAP_TYPE_PERCPU_ARRAY             = 0x6
-	BPF_MAP_TYPE_STACK_TRACE              = 0x7
-	BPF_MAP_TYPE_CGROUP_ARRAY             = 0x8
-	BPF_MAP_TYPE_LRU_HASH                 = 0x9
-	BPF_MAP_TYPE_LRU_PERCPU_HASH          = 0xa
-	BPF_MAP_TYPE_LPM_TRIE                 = 0xb
-	BPF_MAP_TYPE_ARRAY_OF_MAPS            = 0xc
-	BPF_MAP_TYPE_HASH_OF_MAPS             = 0xd
-	BPF_MAP_TYPE_DEVMAP                   = 0xe
-	BPF_MAP_TYPE_SOCKMAP                  = 0xf
-	BPF_MAP_TYPE_CPUMAP                   = 0x10
-	BPF_MAP_TYPE_XSKMAP                   = 0x11
-	BPF_MAP_TYPE_SOCKHASH                 = 0x12
-	BPF_MAP_TYPE_CGROUP_STORAGE           = 0x13
-	BPF_MAP_TYPE_REUSEPORT_SOCKARRAY      = 0x14
-	BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE    = 0x15
-	BPF_MAP_TYPE_QUEUE                    = 0x16
-	BPF_MAP_TYPE_STACK                    = 0x17
-	BPF_MAP_TYPE_SK_STORAGE               = 0x18
-	BPF_MAP_TYPE_DEVMAP_HASH              = 0x19
-	BPF_PROG_TYPE_UNSPEC                  = 0x0
-	BPF_PROG_TYPE_SOCKET_FILTER           = 0x1
-	BPF_PROG_TYPE_KPROBE                  = 0x2
-	BPF_PROG_TYPE_SCHED_CLS               = 0x3
-	BPF_PROG_TYPE_SCHED_ACT               = 0x4
-	BPF_PROG_TYPE_TRACEPOINT              = 0x5
-	BPF_PROG_TYPE_XDP                     = 0x6
-	BPF_PROG_TYPE_PERF_EVENT              = 0x7
-	BPF_PROG_TYPE_CGROUP_SKB              = 0x8
-	BPF_PROG_TYPE_CGROUP_SOCK             = 0x9
-	BPF_PROG_TYPE_LWT_IN                  = 0xa
-	BPF_PROG_TYPE_LWT_OUT                 = 0xb
-	BPF_PROG_TYPE_LWT_XMIT                = 0xc
-	BPF_PROG_TYPE_SOCK_OPS                = 0xd
-	BPF_PROG_TYPE_SK_SKB                  = 0xe
-	BPF_PROG_TYPE_CGROUP_DEVICE           = 0xf
-	BPF_PROG_TYPE_SK_MSG                  = 0x10
-	BPF_PROG_TYPE_RAW_TRACEPOINT          = 0x11
-	BPF_PROG_TYPE_CGROUP_SOCK_ADDR        = 0x12
-	BPF_PROG_TYPE_LWT_SEG6LOCAL           = 0x13
-	BPF_PROG_TYPE_LIRC_MODE2              = 0x14
-	BPF_PROG_TYPE_SK_REUSEPORT            = 0x15
-	BPF_PROG_TYPE_FLOW_DISSECTOR          = 0x16
-	BPF_PROG_TYPE_CGROUP_SYSCTL           = 0x17
-	BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE = 0x18
-	BPF_PROG_TYPE_CGROUP_SOCKOPT          = 0x19
-	BPF_PROG_TYPE_TRACING                 = 0x1a
-	BPF_CGROUP_INET_INGRESS               = 0x0
-	BPF_CGROUP_INET_EGRESS                = 0x1
-	BPF_CGROUP_INET_SOCK_CREATE           = 0x2
-	BPF_CGROUP_SOCK_OPS                   = 0x3
-	BPF_SK_SKB_STREAM_PARSER              = 0x4
-	BPF_SK_SKB_STREAM_VERDICT             = 0x5
-	BPF_CGROUP_DEVICE                     = 0x6
-	BPF_SK_MSG_VERDICT                    = 0x7
-	BPF_CGROUP_INET4_BIND                 = 0x8
-	BPF_CGROUP_INET6_BIND                 = 0x9
-	BPF_CGROUP_INET4_CONNECT              = 0xa
-	BPF_CGROUP_INET6_CONNECT              = 0xb
-	BPF_CGROUP_INET4_POST_BIND            = 0xc
-	BPF_CGROUP_INET6_POST_BIND            = 0xd
-	BPF_CGROUP_UDP4_SENDMSG               = 0xe
-	BPF_CGROUP_UDP6_SENDMSG               = 0xf
-	BPF_LIRC_MODE2                        = 0x10
-	BPF_FLOW_DISSECTOR                    = 0x11
-	BPF_CGROUP_SYSCTL                     = 0x12
-	BPF_CGROUP_UDP4_RECVMSG               = 0x13
-	BPF_CGROUP_UDP6_RECVMSG               = 0x14
-	BPF_CGROUP_GETSOCKOPT                 = 0x15
-	BPF_CGROUP_SETSOCKOPT                 = 0x16
-	BPF_TRACE_RAW_TP                      = 0x17
-	BPF_TRACE_FENTRY                      = 0x18
-	BPF_TRACE_FEXIT                       = 0x19
-	BPF_STACK_BUILD_ID_EMPTY              = 0x0
-	BPF_STACK_BUILD_ID_VALID              = 0x1
-	BPF_STACK_BUILD_ID_IP                 = 0x2
-	BPF_ADJ_ROOM_NET                      = 0x0
-	BPF_ADJ_ROOM_MAC                      = 0x1
-	BPF_HDR_START_MAC                     = 0x0
-	BPF_HDR_START_NET                     = 0x1
-	BPF_LWT_ENCAP_SEG6                    = 0x0
-	BPF_LWT_ENCAP_SEG6_INLINE             = 0x1
-	BPF_LWT_ENCAP_IP                      = 0x2
-	BPF_OK                                = 0x0
-	BPF_DROP                              = 0x2
-	BPF_REDIRECT                          = 0x7
-	BPF_LWT_REROUTE                       = 0x80
-	BPF_SOCK_OPS_VOID                     = 0x0
-	BPF_SOCK_OPS_TIMEOUT_INIT             = 0x1
-	BPF_SOCK_OPS_RWND_INIT                = 0x2
-	BPF_SOCK_OPS_TCP_CONNECT_CB           = 0x3
-	BPF_SOCK_OPS_ACTIVE_ESTABLISHED_CB    = 0x4
-	BPF_SOCK_OPS_PASSIVE_ESTABLISHED_CB   = 0x5
-	BPF_SOCK_OPS_NEEDS_ECN                = 0x6
-	BPF_SOCK_OPS_BASE_RTT                 = 0x7
-	BPF_SOCK_OPS_RTO_CB                   = 0x8
-	BPF_SOCK_OPS_RETRANS_CB               = 0x9
-	BPF_SOCK_OPS_STATE_CB                 = 0xa
-	BPF_SOCK_OPS_TCP_LISTEN_CB            = 0xb
-	BPF_SOCK_OPS_RTT_CB                   = 0xc
-	BPF_TCP_ESTABLISHED                   = 0x1
-	BPF_TCP_SYN_SENT                      = 0x2
-	BPF_TCP_SYN_RECV                      = 0x3
-	BPF_TCP_FIN_WAIT1                     = 0x4
-	BPF_TCP_FIN_WAIT2                     = 0x5
-	BPF_TCP_TIME_WAIT                     = 0x6
-	BPF_TCP_CLOSE                         = 0x7
-	BPF_TCP_CLOSE_WAIT                    = 0x8
-	BPF_TCP_LAST_ACK                      = 0x9
-	BPF_TCP_LISTEN                        = 0xa
-	BPF_TCP_CLOSING                       = 0xb
-	BPF_TCP_NEW_SYN_RECV                  = 0xc
-	BPF_TCP_MAX_STATES                    = 0xd
-	BPF_FIB_LKUP_RET_SUCCESS              = 0x0
-	BPF_FIB_LKUP_RET_BLACKHOLE            = 0x1
-	BPF_FIB_LKUP_RET_UNREACHABLE          = 0x2
-	BPF_FIB_LKUP_RET_PROHIBIT             = 0x3
-	BPF_FIB_LKUP_RET_NOT_FWDED            = 0x4
-	BPF_FIB_LKUP_RET_FWD_DISABLED         = 0x5
-	BPF_FIB_LKUP_RET_UNSUPP_LWT           = 0x6
-	BPF_FIB_LKUP_RET_NO_NEIGH             = 0x7
-	BPF_FIB_LKUP_RET_FRAG_NEEDED          = 0x8
-	BPF_FD_TYPE_RAW_TRACEPOINT            = 0x0
-	BPF_FD_TYPE_TRACEPOINT                = 0x1
-	BPF_FD_TYPE_KPROBE                    = 0x2
-	BPF_FD_TYPE_KRETPROBE                 = 0x3
-	BPF_FD_TYPE_UPROBE                    = 0x4
-	BPF_FD_TYPE_URETPROBE                 = 0x5
+	BPF_REG_0                               = 0x0
+	BPF_REG_1                               = 0x1
+	BPF_REG_2                               = 0x2
+	BPF_REG_3                               = 0x3
+	BPF_REG_4                               = 0x4
+	BPF_REG_5                               = 0x5
+	BPF_REG_6                               = 0x6
+	BPF_REG_7                               = 0x7
+	BPF_REG_8                               = 0x8
+	BPF_REG_9                               = 0x9
+	BPF_REG_10                              = 0xa
+	BPF_MAP_CREATE                          = 0x0
+	BPF_MAP_LOOKUP_ELEM                     = 0x1
+	BPF_MAP_UPDATE_ELEM                     = 0x2
+	BPF_MAP_DELETE_ELEM                     = 0x3
+	BPF_MAP_GET_NEXT_KEY                    = 0x4
+	BPF_PROG_LOAD                           = 0x5
+	BPF_OBJ_PIN                             = 0x6
+	BPF_OBJ_GET                             = 0x7
+	BPF_PROG_ATTACH                         = 0x8
+	BPF_PROG_DETACH                         = 0x9
+	BPF_PROG_TEST_RUN                       = 0xa
+	BPF_PROG_GET_NEXT_ID                    = 0xb
+	BPF_MAP_GET_NEXT_ID                     = 0xc
+	BPF_PROG_GET_FD_BY_ID                   = 0xd
+	BPF_MAP_GET_FD_BY_ID                    = 0xe
+	BPF_OBJ_GET_INFO_BY_FD                  = 0xf
+	BPF_PROG_QUERY                          = 0x10
+	BPF_RAW_TRACEPOINT_OPEN                 = 0x11
+	BPF_BTF_LOAD                            = 0x12
+	BPF_BTF_GET_FD_BY_ID                    = 0x13
+	BPF_TASK_FD_QUERY                       = 0x14
+	BPF_MAP_LOOKUP_AND_DELETE_ELEM          = 0x15
+	BPF_MAP_FREEZE                          = 0x16
+	BPF_BTF_GET_NEXT_ID                     = 0x17
+	BPF_MAP_LOOKUP_BATCH                    = 0x18
+	BPF_MAP_LOOKUP_AND_DELETE_BATCH         = 0x19
+	BPF_MAP_UPDATE_BATCH                    = 0x1a
+	BPF_MAP_DELETE_BATCH                    = 0x1b
+	BPF_LINK_CREATE                         = 0x1c
+	BPF_LINK_UPDATE                         = 0x1d
+	BPF_MAP_TYPE_UNSPEC                     = 0x0
+	BPF_MAP_TYPE_HASH                       = 0x1
+	BPF_MAP_TYPE_ARRAY                      = 0x2
+	BPF_MAP_TYPE_PROG_ARRAY                 = 0x3
+	BPF_MAP_TYPE_PERF_EVENT_ARRAY           = 0x4
+	BPF_MAP_TYPE_PERCPU_HASH                = 0x5
+	BPF_MAP_TYPE_PERCPU_ARRAY               = 0x6
+	BPF_MAP_TYPE_STACK_TRACE                = 0x7
+	BPF_MAP_TYPE_CGROUP_ARRAY               = 0x8
+	BPF_MAP_TYPE_LRU_HASH                   = 0x9
+	BPF_MAP_TYPE_LRU_PERCPU_HASH            = 0xa
+	BPF_MAP_TYPE_LPM_TRIE                   = 0xb
+	BPF_MAP_TYPE_ARRAY_OF_MAPS              = 0xc
+	BPF_MAP_TYPE_HASH_OF_MAPS               = 0xd
+	BPF_MAP_TYPE_DEVMAP                     = 0xe
+	BPF_MAP_TYPE_SOCKMAP                    = 0xf
+	BPF_MAP_TYPE_CPUMAP                     = 0x10
+	BPF_MAP_TYPE_XSKMAP                     = 0x11
+	BPF_MAP_TYPE_SOCKHASH                   = 0x12
+	BPF_MAP_TYPE_CGROUP_STORAGE             = 0x13
+	BPF_MAP_TYPE_REUSEPORT_SOCKARRAY        = 0x14
+	BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE      = 0x15
+	BPF_MAP_TYPE_QUEUE                      = 0x16
+	BPF_MAP_TYPE_STACK                      = 0x17
+	BPF_MAP_TYPE_SK_STORAGE                 = 0x18
+	BPF_MAP_TYPE_DEVMAP_HASH                = 0x19
+	BPF_MAP_TYPE_STRUCT_OPS                 = 0x1a
+	BPF_PROG_TYPE_UNSPEC                    = 0x0
+	BPF_PROG_TYPE_SOCKET_FILTER             = 0x1
+	BPF_PROG_TYPE_KPROBE                    = 0x2
+	BPF_PROG_TYPE_SCHED_CLS                 = 0x3
+	BPF_PROG_TYPE_SCHED_ACT                 = 0x4
+	BPF_PROG_TYPE_TRACEPOINT                = 0x5
+	BPF_PROG_TYPE_XDP                       = 0x6
+	BPF_PROG_TYPE_PERF_EVENT                = 0x7
+	BPF_PROG_TYPE_CGROUP_SKB                = 0x8
+	BPF_PROG_TYPE_CGROUP_SOCK               = 0x9
+	BPF_PROG_TYPE_LWT_IN                    = 0xa
+	BPF_PROG_TYPE_LWT_OUT                   = 0xb
+	BPF_PROG_TYPE_LWT_XMIT                  = 0xc
+	BPF_PROG_TYPE_SOCK_OPS                  = 0xd
+	BPF_PROG_TYPE_SK_SKB                    = 0xe
+	BPF_PROG_TYPE_CGROUP_DEVICE             = 0xf
+	BPF_PROG_TYPE_SK_MSG                    = 0x10
+	BPF_PROG_TYPE_RAW_TRACEPOINT            = 0x11
+	BPF_PROG_TYPE_CGROUP_SOCK_ADDR          = 0x12
+	BPF_PROG_TYPE_LWT_SEG6LOCAL             = 0x13
+	BPF_PROG_TYPE_LIRC_MODE2                = 0x14
+	BPF_PROG_TYPE_SK_REUSEPORT              = 0x15
+	BPF_PROG_TYPE_FLOW_DISSECTOR            = 0x16
+	BPF_PROG_TYPE_CGROUP_SYSCTL             = 0x17
+	BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE   = 0x18
+	BPF_PROG_TYPE_CGROUP_SOCKOPT            = 0x19
+	BPF_PROG_TYPE_TRACING                   = 0x1a
+	BPF_PROG_TYPE_STRUCT_OPS                = 0x1b
+	BPF_PROG_TYPE_EXT                       = 0x1c
+	BPF_PROG_TYPE_LSM                       = 0x1d
+	BPF_CGROUP_INET_INGRESS                 = 0x0
+	BPF_CGROUP_INET_EGRESS                  = 0x1
+	BPF_CGROUP_INET_SOCK_CREATE             = 0x2
+	BPF_CGROUP_SOCK_OPS                     = 0x3
+	BPF_SK_SKB_STREAM_PARSER                = 0x4
+	BPF_SK_SKB_STREAM_VERDICT               = 0x5
+	BPF_CGROUP_DEVICE                       = 0x6
+	BPF_SK_MSG_VERDICT                      = 0x7
+	BPF_CGROUP_INET4_BIND                   = 0x8
+	BPF_CGROUP_INET6_BIND                   = 0x9
+	BPF_CGROUP_INET4_CONNECT                = 0xa
+	BPF_CGROUP_INET6_CONNECT                = 0xb
+	BPF_CGROUP_INET4_POST_BIND              = 0xc
+	BPF_CGROUP_INET6_POST_BIND              = 0xd
+	BPF_CGROUP_UDP4_SENDMSG                 = 0xe
+	BPF_CGROUP_UDP6_SENDMSG                 = 0xf
+	BPF_LIRC_MODE2                          = 0x10
+	BPF_FLOW_DISSECTOR                      = 0x11
+	BPF_CGROUP_SYSCTL                       = 0x12
+	BPF_CGROUP_UDP4_RECVMSG                 = 0x13
+	BPF_CGROUP_UDP6_RECVMSG                 = 0x14
+	BPF_CGROUP_GETSOCKOPT                   = 0x15
+	BPF_CGROUP_SETSOCKOPT                   = 0x16
+	BPF_TRACE_RAW_TP                        = 0x17
+	BPF_TRACE_FENTRY                        = 0x18
+	BPF_TRACE_FEXIT                         = 0x19
+	BPF_MODIFY_RETURN                       = 0x1a
+	BPF_LSM_MAC                             = 0x1b
+	BPF_ANY                                 = 0x0
+	BPF_NOEXIST                             = 0x1
+	BPF_EXIST                               = 0x2
+	BPF_F_LOCK                              = 0x4
+	BPF_F_NO_PREALLOC                       = 0x1
+	BPF_F_NO_COMMON_LRU                     = 0x2
+	BPF_F_NUMA_NODE                         = 0x4
+	BPF_F_RDONLY                            = 0x8
+	BPF_F_WRONLY                            = 0x10
+	BPF_F_STACK_BUILD_ID                    = 0x20
+	BPF_F_ZERO_SEED                         = 0x40
+	BPF_F_RDONLY_PROG                       = 0x80
+	BPF_F_WRONLY_PROG                       = 0x100
+	BPF_F_CLONE                             = 0x200
+	BPF_F_MMAPABLE                          = 0x400
+	BPF_STACK_BUILD_ID_EMPTY                = 0x0
+	BPF_STACK_BUILD_ID_VALID                = 0x1
+	BPF_STACK_BUILD_ID_IP                   = 0x2
+	BPF_F_RECOMPUTE_CSUM                    = 0x1
+	BPF_F_INVALIDATE_HASH                   = 0x2
+	BPF_F_HDR_FIELD_MASK                    = 0xf
+	BPF_F_PSEUDO_HDR                        = 0x10
+	BPF_F_MARK_MANGLED_0                    = 0x20
+	BPF_F_MARK_ENFORCE                      = 0x40
+	BPF_F_INGRESS                           = 0x1
+	BPF_F_TUNINFO_IPV6                      = 0x1
+	BPF_F_SKIP_FIELD_MASK                   = 0xff
+	BPF_F_USER_STACK                        = 0x100
+	BPF_F_FAST_STACK_CMP                    = 0x200
+	BPF_F_REUSE_STACKID                     = 0x400
+	BPF_F_USER_BUILD_ID                     = 0x800
+	BPF_F_ZERO_CSUM_TX                      = 0x2
+	BPF_F_DONT_FRAGMENT                     = 0x4
+	BPF_F_SEQ_NUMBER                        = 0x8
+	BPF_F_INDEX_MASK                        = 0xffffffff
+	BPF_F_CURRENT_CPU                       = 0xffffffff
+	BPF_F_CTXLEN_MASK                       = 0xfffff00000000
+	BPF_F_CURRENT_NETNS                     = -0x1
+	BPF_F_ADJ_ROOM_FIXED_GSO                = 0x1
+	BPF_F_ADJ_ROOM_ENCAP_L3_IPV4            = 0x2
+	BPF_F_ADJ_ROOM_ENCAP_L3_IPV6            = 0x4
+	BPF_F_ADJ_ROOM_ENCAP_L4_GRE             = 0x8
+	BPF_F_ADJ_ROOM_ENCAP_L4_UDP             = 0x10
+	BPF_ADJ_ROOM_ENCAP_L2_MASK              = 0xff
+	BPF_ADJ_ROOM_ENCAP_L2_SHIFT             = 0x38
+	BPF_F_SYSCTL_BASE_NAME                  = 0x1
+	BPF_SK_STORAGE_GET_F_CREATE             = 0x1
+	BPF_F_GET_BRANCH_RECORDS_SIZE           = 0x1
+	BPF_ADJ_ROOM_NET                        = 0x0
+	BPF_ADJ_ROOM_MAC                        = 0x1
+	BPF_HDR_START_MAC                       = 0x0
+	BPF_HDR_START_NET                       = 0x1
+	BPF_LWT_ENCAP_SEG6                      = 0x0
+	BPF_LWT_ENCAP_SEG6_INLINE               = 0x1
+	BPF_LWT_ENCAP_IP                        = 0x2
+	BPF_OK                                  = 0x0
+	BPF_DROP                                = 0x2
+	BPF_REDIRECT                            = 0x7
+	BPF_LWT_REROUTE                         = 0x80
+	BPF_SOCK_OPS_RTO_CB_FLAG                = 0x1
+	BPF_SOCK_OPS_RETRANS_CB_FLAG            = 0x2
+	BPF_SOCK_OPS_STATE_CB_FLAG              = 0x4
+	BPF_SOCK_OPS_RTT_CB_FLAG                = 0x8
+	BPF_SOCK_OPS_ALL_CB_FLAGS               = 0xf
+	BPF_SOCK_OPS_VOID                       = 0x0
+	BPF_SOCK_OPS_TIMEOUT_INIT               = 0x1
+	BPF_SOCK_OPS_RWND_INIT                  = 0x2
+	BPF_SOCK_OPS_TCP_CONNECT_CB             = 0x3
+	BPF_SOCK_OPS_ACTIVE_ESTABLISHED_CB      = 0x4
+	BPF_SOCK_OPS_PASSIVE_ESTABLISHED_CB     = 0x5
+	BPF_SOCK_OPS_NEEDS_ECN                  = 0x6
+	BPF_SOCK_OPS_BASE_RTT                   = 0x7
+	BPF_SOCK_OPS_RTO_CB                     = 0x8
+	BPF_SOCK_OPS_RETRANS_CB                 = 0x9
+	BPF_SOCK_OPS_STATE_CB                   = 0xa
+	BPF_SOCK_OPS_TCP_LISTEN_CB              = 0xb
+	BPF_SOCK_OPS_RTT_CB                     = 0xc
+	BPF_TCP_ESTABLISHED                     = 0x1
+	BPF_TCP_SYN_SENT                        = 0x2
+	BPF_TCP_SYN_RECV                        = 0x3
+	BPF_TCP_FIN_WAIT1                       = 0x4
+	BPF_TCP_FIN_WAIT2                       = 0x5
+	BPF_TCP_TIME_WAIT                       = 0x6
+	BPF_TCP_CLOSE                           = 0x7
+	BPF_TCP_CLOSE_WAIT                      = 0x8
+	BPF_TCP_LAST_ACK                        = 0x9
+	BPF_TCP_LISTEN                          = 0xa
+	BPF_TCP_CLOSING                         = 0xb
+	BPF_TCP_NEW_SYN_RECV                    = 0xc
+	BPF_TCP_MAX_STATES                      = 0xd
+	TCP_BPF_IW                              = 0x3e9
+	TCP_BPF_SNDCWND_CLAMP                   = 0x3ea
+	BPF_DEVCG_ACC_MKNOD                     = 0x1
+	BPF_DEVCG_ACC_READ                      = 0x2
+	BPF_DEVCG_ACC_WRITE                     = 0x4
+	BPF_DEVCG_DEV_BLOCK                     = 0x1
+	BPF_DEVCG_DEV_CHAR                      = 0x2
+	BPF_FIB_LOOKUP_DIRECT                   = 0x1
+	BPF_FIB_LOOKUP_OUTPUT                   = 0x2
+	BPF_FIB_LKUP_RET_SUCCESS                = 0x0
+	BPF_FIB_LKUP_RET_BLACKHOLE              = 0x1
+	BPF_FIB_LKUP_RET_UNREACHABLE            = 0x2
+	BPF_FIB_LKUP_RET_PROHIBIT               = 0x3
+	BPF_FIB_LKUP_RET_NOT_FWDED              = 0x4
+	BPF_FIB_LKUP_RET_FWD_DISABLED           = 0x5
+	BPF_FIB_LKUP_RET_UNSUPP_LWT             = 0x6
+	BPF_FIB_LKUP_RET_NO_NEIGH               = 0x7
+	BPF_FIB_LKUP_RET_FRAG_NEEDED            = 0x8
+	BPF_FD_TYPE_RAW_TRACEPOINT              = 0x0
+	BPF_FD_TYPE_TRACEPOINT                  = 0x1
+	BPF_FD_TYPE_KPROBE                      = 0x2
+	BPF_FD_TYPE_KRETPROBE                   = 0x3
+	BPF_FD_TYPE_UPROBE                      = 0x4
+	BPF_FD_TYPE_URETPROBE                   = 0x5
+	BPF_FLOW_DISSECTOR_F_PARSE_1ST_FRAG     = 0x1
+	BPF_FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL = 0x2
+	BPF_FLOW_DISSECTOR_F_STOP_AT_ENCAP      = 0x4
 )

 const (
@ -2205,7 +2279,7 @@ const (
 	DEVLINK_CMD_DPIPE_ENTRIES_GET             = 0x20
 	DEVLINK_CMD_DPIPE_HEADERS_GET             = 0x21
 	DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET      = 0x22
-	DEVLINK_CMD_MAX                           = 0x44
+	DEVLINK_CMD_MAX                           = 0x48
 	DEVLINK_PORT_TYPE_NOTSET                  = 0x0
 	DEVLINK_PORT_TYPE_AUTO                    = 0x1
 	DEVLINK_PORT_TYPE_ETH                     = 0x2
@ -2285,7 +2359,7 @@ const (
 	DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE     = 0x3c
 	DEVLINK_ATTR_PAD                          = 0x3d
 	DEVLINK_ATTR_ESWITCH_ENCAP_MODE           = 0x3e
-	DEVLINK_ATTR_MAX                          = 0x8c
+	DEVLINK_ATTR_MAX                          = 0x90
 	DEVLINK_DPIPE_FIELD_MAPPING_TYPE_NONE     = 0x0
 	DEVLINK_DPIPE_FIELD_MAPPING_TYPE_IFINDEX  = 0x1
 	DEVLINK_DPIPE_MATCH_TYPE_FIELD_EXACT      = 0x0
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@ -81,7 +81,7 @@ github.com/prometheus/common/model
 github.com/prometheus/common/promlog
 github.com/prometheus/common/promlog/flag
 github.com/prometheus/common/version
-# github.com/prometheus/procfs v0.0.11
+# github.com/prometheus/procfs v0.1.3
 ## explicit
 github.com/prometheus/procfs
 github.com/prometheus/procfs/bcache
@ -123,7 +123,7 @@ golang.org/x/net/trace
 # golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a
 ## explicit
 golang.org/x/sync/errgroup
-# golang.org/x/sys v0.0.0-20200523222454-059865788121
+# golang.org/x/sys v0.0.0-20200602225109-6fdc65e7d980
 ## explicit
 golang.org/x/sys/internal/unsafeheader
 golang.org/x/sys/unix
 @ -1 +1 @@
 .0.0
 .0.1