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Diffstat (limited to 'pkg/sentry/fs/ext/disklayout/superblock_old.go')
-rw-r--r--pkg/sentry/fs/ext/disklayout/superblock_old.go3
1 files changed, 3 insertions, 0 deletions
diff --git a/pkg/sentry/fs/ext/disklayout/superblock_old.go b/pkg/sentry/fs/ext/disklayout/superblock_old.go
index c74953610..aada8b550 100644
--- a/pkg/sentry/fs/ext/disklayout/superblock_old.go
+++ b/pkg/sentry/fs/ext/disklayout/superblock_old.go
@@ -44,6 +44,9 @@ type SuperBlockOld struct {
DefResGID uint16
}
+// Compiles only if SuperBlockOld implements SuperBlock.
+var _ SuperBlock = (*SuperBlockOld)(nil)
+
// InodesCount implements SuperBlock.InodesCount.
func (sb *SuperBlockOld) InodesCount() uint32 { return sb.InodesCountRaw }