Merge pull request #50231 from thaJeztah/update_cgroups

vendor: github.com/opencontainers/cgroups v0.0.3

vendor.mod

@@ -81,7 +81,7 @@ require (
 	github.com/moby/sys/userns v0.1.0
 	github.com/moby/term v0.5.2
 	github.com/morikuni/aec v1.0.0
-	github.com/opencontainers/cgroups v0.0.2
+	github.com/opencontainers/cgroups v0.0.3
 	github.com/opencontainers/go-digest v1.0.0
 	github.com/opencontainers/image-spec v1.1.1
 	github.com/opencontainers/runtime-spec v1.2.1

vendor.sum

@@ -440,8 +440,8 @@ github.com/onsi/ginkgo/v2 v2.23.4/go.mod h1:Bt66ApGPBFzHyR+JO10Zbt0Gsp4uWxu5mIOT
 github.com/onsi/gomega v1.37.0 h1:CdEG8g0S133B4OswTDC/5XPSzE1OeP29QOioj2PID2Y=
 github.com/onsi/gomega v1.37.0/go.mod h1:8D9+Txp43QWKhM24yyOBEdpkzN8FvJyAwecBgsU4KU0=
 github.com/op/go-logging v0.0.0-20160315200505-970db520ece7/go.mod h1:HzydrMdWErDVzsI23lYNej1Htcns9BCg93Dk0bBINWk=
-github.com/opencontainers/cgroups v0.0.2 h1:A+mAPPMfgKNCEZUUtibESFx06uvhAmvo8sSz3Abwk7o=
-github.com/opencontainers/cgroups v0.0.2/go.mod h1:s8lktyhlGUqM7OSRL5P7eAW6Wb+kWPNvt4qvVfzA5vs=
+github.com/opencontainers/cgroups v0.0.3 h1:Jc9dWh/0YLGjdy6J/9Ln8NM5BfTA4W2BY0GMozy3aDU=
+github.com/opencontainers/cgroups v0.0.3/go.mod h1:s8lktyhlGUqM7OSRL5P7eAW6Wb+kWPNvt4qvVfzA5vs=
 github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
 github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
 github.com/opencontainers/image-spec v1.1.1 h1:y0fUlFfIZhPF1W537XOLg0/fcx6zcHCJwooC2xJA040=

vendor/github.com/opencontainers/cgroups/config_linux.go

@@ -29,7 +29,7 @@ type Cgroup struct {
 	ScopePrefix string `json:"scope_prefix,omitempty"`
 
 	// Resources contains various cgroups settings to apply.
-	*Resources `json:"Resources,omitempty"`
+	*Resources
 
 	// Systemd tells if systemd should be used to manage cgroups.
 	Systemd bool `json:"Systemd,omitempty"`

vendor/github.com/opencontainers/cgroups/utils.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"math"
 	"os"
 	"path/filepath"
 	"strconv"
@@ -413,16 +414,30 @@ func WriteCgroupProc(dir string, pid int) error {
 	return err
 }
 
-// Since the OCI spec is designed for cgroup v1, in some cases
-// there is need to convert from the cgroup v1 configuration to cgroup v2
-// the formula for cpuShares is y = (1 + ((x - 2) * 9999) / 262142)
-// convert from [2-262144] to [1-10000]
-// 262144 comes from Linux kernel definition "#define MAX_SHARES (1UL << 18)"
+// ConvertCPUSharesToCgroupV2Value converts CPU shares, used by cgroup v1,
+// to CPU weight, used by cgroup v2.
+//
+// Cgroup v1 CPU shares has a range of [2^1...2^18], i.e. [2...262144],
+// and the default value is 1024.
+//
+// Cgroup v2 CPU weight has a range of [10^0...10^4], i.e. [1...10000],
+// and the default value is 100.
 func ConvertCPUSharesToCgroupV2Value(cpuShares uint64) uint64 {
+	// The value of 0 means "unset".
 	if cpuShares == 0 {
 		return 0
 	}
-	return (1 + ((cpuShares-2)*9999)/262142)
+	if cpuShares <= 2 {
+		return 1
+	}
+	if cpuShares >= 262144 {
+		return 10000
+	}
+	l := math.Log2(float64(cpuShares))
+	// Quadratic function which fits min, max, and default.
+	exponent := (l*l+125*l)/612.0 - 7.0/34.0
+
+	return uint64(math.Ceil(math.Pow(10, exponent)))
 }
 
 // ConvertMemorySwapToCgroupV2Value converts MemorySwap value from OCI spec

vendor/modules.txt

@@ -1053,7 +1053,7 @@ github.com/morikuni/aec
 # github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822
 ## explicit
 github.com/munnerz/goautoneg
-# github.com/opencontainers/cgroups v0.0.2
+# github.com/opencontainers/cgroups v0.0.3
 ## explicit; go 1.23.0
 github.com/opencontainers/cgroups
 github.com/opencontainers/cgroups/devices/config