LU-13717 sec: make client encryption compatible with ext4

[fs/lustre-release.git] / lustre / mdt / mdt_lib.c

diff --git a/lustre/mdt/mdt_lib.c b/lustre/mdt/mdt_lib.c
index 0fc378b..39fcb2a 100644 (file)
--- a/lustre/mdt/mdt_lib.c
+++ b/lustre/mdt/mdt_lib.c
@@ -2016,6 +2016,12 @@ int mdt_pack_encctx_in_reply(struct mdt_thread_info *info,
                                          mdt_object_child(child),
                                          buffer,
                                          LL_XATTR_NAME_ENCRYPTION_CONTEXT);
+                       if (unlikely(rc == -ENODATA))
+                               /* For compatibility with 2.14 */
+                               rc = mo_xattr_get(info->mti_env,
+                                         mdt_object_child(child),
+                                         buffer,
+                                         LL_XATTR_NAME_ENCRYPTION_CONTEXT_OLD);
                        if (rc >= 0) {
                                CDEBUG(D_SEC,
                                       "found encryption ctx of size %d for "DFID"\n",