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]>
opencontainers · Oct 5, 2021 · 916c6a1 · 916c6a1
1 parent 8e7ab26
commit 916c6a1
Showing 1 changed file with 1 addition and 5 deletions.
diff --git a/libcontainer/cgroups/fs2/hugetlb.go b/libcontainer/cgroups/fs2/hugetlb.go
@@ -1,7 +1,6 @@
 package fs2
 
 import (
-	"fmt"
 	"strconv"
 
 	"github.com/opencontainers/runc/libcontainer/cgroups"
@@ -27,10 +26,7 @@ func setHugeTlb(dirPath string, r *configs.Resources) error {
 }
 
 func statHugeTlb(dirPath string, stats *cgroups.Stats) error {
-	hugePageSizes, err := cgroups.GetHugePageSize()
-	if err != nil {
-		return fmt.Errorf("failed to fetch hugetlb info: %w", err)
-	}
+	hugePageSizes, _ := cgroups.GetHugePageSize()
 	hugetlbStats := cgroups.HugetlbStats{}
 
 	for _, pagesize := range hugePageSizes {