Merge pull request #4920 from openSUSE/cgroup2-super-magic

Use cgroupv2 super magic from golang.org/x/sys/unix
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OpenShift Merge Robot 2020-01-22 15:54:32 -05:00 committed by GitHub
commit 8b377a79c2
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2 changed files with 3 additions and 3 deletions

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@ -97,8 +97,7 @@ type controllerHandler interface {
} }
const ( const (
cgroupRoot = "/sys/fs/cgroup" cgroupRoot = "/sys/fs/cgroup"
_cgroup2SuperMagic = 0x63677270
// CPU is the cpu controller // CPU is the cpu controller
CPU = "cpu" CPU = "cpu"
// CPUAcct is the cpuacct controller // CPUAcct is the cpuacct controller

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@ -12,6 +12,7 @@ import (
"syscall" "syscall"
"github.com/pkg/errors" "github.com/pkg/errors"
"golang.org/x/sys/unix"
) )
var ( var (
@ -27,7 +28,7 @@ func IsCgroup2UnifiedMode() (bool, error) {
if err := syscall.Statfs("/sys/fs/cgroup", &st); err != nil { if err := syscall.Statfs("/sys/fs/cgroup", &st); err != nil {
isUnified, isUnifiedErr = false, err isUnified, isUnifiedErr = false, err
} else { } else {
isUnified, isUnifiedErr = st.Type == _cgroup2SuperMagic, nil isUnified, isUnifiedErr = st.Type == unix.CGROUP2_SUPER_MAGIC, nil
} }
}) })
return isUnified, isUnifiedErr return isUnified, isUnifiedErr