1 files changed, 27 insertions, 0 deletions
diff --git a/vendor/github.com/containers/common/pkg/cgroupv2/cgroups_linux.go b/vendor/github.com/containers/common/pkg/cgroupv2/cgroups_linux.go
new file mode 100644
index 000000000..b11eafebb
--- /dev/null
+++ b/vendor/github.com/containers/common/pkg/cgroupv2/cgroups_linux.go
@@ -0,0 +1,27 @@
+package cgroupv2
+
+import (
+	"sync"
+	"syscall"
+
+	"golang.org/x/sys/unix"
+)
+
+var (
+	isCgroupV2Once sync.Once
+	isCgroupV2     bool
+	isCgroupV2Err  error
+)
+
+// Enabled returns whether we are running in cgroup 2 cgroup2 mode.
+func Enabled() (bool, error) {
+	isCgroupV2Once.Do(func() {
+		var st syscall.Statfs_t
+		if err := syscall.Statfs("/sys/fs/cgroup", &st); err != nil {
+			isCgroupV2, isCgroupV2Err = false, err
+		} else {
+			isCgroupV2, isCgroupV2Err = st.Type == unix.CGROUP2_SUPER_MAGIC, nil
+		}
+	})
+	return isCgroupV2, isCgroupV2Err
+}