LU-10286 mdt: deny 2.10 clients to open mirrored files

[fs/lustre-release.git] / lustre / include / lustre_export.h

diff --git a/lustre/include/lustre_export.h b/lustre/include/lustre_export.h
index fb531f9..a1271ff 100644 (file)
--- a/lustre/include/lustre_export.h
+++ b/lustre/include/lustre_export.h
@@ -324,7 +324,9 @@ static inline __u64 *exp_connect_flags2_ptr(struct obd_export *exp)
 
 static inline __u64 exp_connect_flags2(struct obd_export *exp)
 {
-       return *exp_connect_flags2_ptr(exp);
+       if (exp_connect_flags(exp) & OBD_CONNECT_FLAGS2)
+               return *exp_connect_flags2_ptr(exp);
+       return 0;
 }
 
 static inline int exp_max_brw_size(struct obd_export *exp)
@@ -439,6 +441,11 @@ static inline int exp_connect_lockahead(struct obd_export *exp)
        return !!(exp_connect_flags2(exp) & OBD_CONNECT2_LOCKAHEAD);
 }
 
+static inline int exp_connect_flr(struct obd_export *exp)
+{
+       return !!(exp_connect_flags2(exp) & OBD_CONNECT2_FLR);
+}
+
 extern struct obd_export *class_conn2export(struct lustre_handle *conn);
 extern struct obd_device *class_conn2obd(struct lustre_handle *conn);