stats: add SystemUsage

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>

1 files changed, 10 insertions, 5 deletions

diff --git a/pkg/cgroups/cgroups.go b/pkg/cgroups/cgroups.go
index 96786223d..6c5b7978c 100644
--- a/pkg/cgroups/cgroups.go
+++ b/pkg/cgroups/cgroups.go
@@ -536,15 +536,14 @@ func (c *CgroupControl) Stat() (*Metrics, error) {
 	return &m, nil
 }
 
-func readCgroup2MapFile(ctr *CgroupControl, name string) (map[string][]string, error) {
+func readCgroup2MapPath(path string) (map[string][]string, error) {
 	ret := map[string][]string{}
-	p := filepath.Join(cgroupRoot, ctr.path, name)
-	f, err := os.Open(p)
+	f, err := os.Open(path)
 	if err != nil {
 		if os.IsNotExist(err) {
 			return ret, nil
 		}
-		return nil, errors.Wrapf(err, "open file %s", p)
+		return nil, errors.Wrapf(err, "open file %s", path)
 	}
 	defer f.Close()
 	scanner := bufio.NewScanner(f)
@@ -557,7 +556,13 @@ func readCgroup2MapFile(ctr *CgroupControl, name string) (map[string][]string, e
 		ret[parts[0]] = parts[1:]
 	}
 	if err := scanner.Err(); err != nil {
-		return nil, errors.Wrapf(err, "parsing file %s", p)
+		return nil, errors.Wrapf(err, "parsing file %s", path)
 	}
 	return ret, nil
 }
+
+func readCgroup2MapFile(ctr *CgroupControl, name string) (map[string][]string, error) {
+	p := filepath.Join(cgroupRoot, ctr.path, name)
+
+	return readCgroup2MapPath(p)
+}