diff options
Diffstat (limited to 'pkg/cgroups/cgroups_supported.go')
-rw-r--r-- | pkg/cgroups/cgroups_supported.go | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/pkg/cgroups/cgroups_supported.go b/pkg/cgroups/cgroups_supported.go new file mode 100644 index 000000000..fcd44dfc8 --- /dev/null +++ b/pkg/cgroups/cgroups_supported.go @@ -0,0 +1,27 @@ +// +build linux + +package cgroups + +import ( + "sync" + "syscall" +) + +var ( + isUnifiedOnce sync.Once + isUnified bool + isUnifiedErr error +) + +// IsCgroup2UnifiedMode returns whether we are running in cgroup 2 cgroup2 mode. +func IsCgroup2UnifiedMode() (bool, error) { + isUnifiedOnce.Do(func() { + var st syscall.Statfs_t + if err := syscall.Statfs("/sys/fs/cgroup", &st); err != nil { + isUnified, isUnifiedErr = false, err + } else { + isUnified, isUnifiedErr = st.Type == _cgroup2SuperMagic, nil + } + }) + return isUnified, isUnifiedErr +} |