libct/cg/fs2: fix GetStats for unsupported hugetlb

In case hugetlb is not supported, GetStats() should not error out, and yet it does. Assume that if GetHugePageSize return an error, hugetlb is not supported (this is what cgroup v1 manager do). Fixes: 89a87ad Signed-off-by: Kir Kolyshkin <[email protected]> (cherry picked from commit 916c6a1) Signed-off-by: Akihiro Suda <[email protected]>
opencontainers · Nov 29, 2021 · 8e96a96 · 8e96a96
1 parent 3125814
commit 8e96a96
Showing 1 changed file with 1 addition and 4 deletions.
diff --git a/libcontainer/cgroups/fs2/hugetlb.go b/libcontainer/cgroups/fs2/hugetlb.go
@@ -30,10 +30,7 @@ func setHugeTlb(dirPath string, r *configs.Resources) error {
 }
 
 func statHugeTlb(dirPath string, stats *cgroups.Stats) error {
-	hugePageSizes, err := cgroups.GetHugePageSize()
-	if err != nil {
-		return errors.Wrap(err, "failed to fetch hugetlb info")
-	}
+	hugePageSizes, _ := cgroups.GetHugePageSize()
 	hugetlbStats := cgroups.HugetlbStats{}
 
 	for _, pagesize := range hugePageSizes {