1 files changed, 2 insertions, 0 deletions
diff --git a/block/qcow2.h b/block/qcow2.h
index a22d7fafbe..291309a9e7 100644
--- a/block/qcow2.h
+++ b/block/qcow2.h
@@ -175,6 +175,8 @@ enum {
 #define L2E_OFFSET_MASK 0x00ffffffffffff00ULL
 #define L2E_COMPRESSED_OFFSET_SIZE_MASK 0x3fffffffffffffffULL
 
+#define REFT_OFFSET_MASK 0xffffffffffffff00ULL
+
 static inline int size_to_clusters(BDRVQcowState *s, int64_t size)
 {
     return (size + (s->cluster_size - 1)) >> s->cluster_bits;