add cgroup hugetlb test for runtime

Signed-off-by: Ma Shimiao <mashimiao.fnst@cn.fujitsu.com>

validation/linux_cgroups_hugetlb.go

@@ -0,0 +1,35 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/opencontainers/runtime-tools/cgroups"
+	"github.com/opencontainers/runtime-tools/validation/util"
+)
+
+func main() {
+	page := "1GB"
+	var limit uint64 = 56892210544640
+	g := util.GetDefaultGenerator()
+	g.SetLinuxCgroupsPath("/test")
+	g.AddLinuxResourcesHugepageLimit(page, limit)
+	err := util.RuntimeOutsideValidate(g, func(path string) error {
+		cg, err := cgroups.FindCgroup()
+		if err != nil {
+			return err
+		}
+		lhd, err := cg.GetHugepageLimitData(path)
+		if err != nil {
+			return err
+		}
+		for _, lhl := range lhd {
+			if lhl.Pagesize == page && lhl.Limit != limit {
+				return fmt.Errorf("hugepage %s limit is not set correctly, expect: %d, actual: %d", page, limit, lhl.Limit)
+			}
+		}
+		return nil
+	})
+	if err != nil {
+		util.Fatal(err)
+	}
+}