Merge pull request ceph#54149 from mihalicyn/ceph_mds_request_head_legacy_fallback_fix

MClientRequest: properly handle ceph_mds_request_head_legacy for ext_num_retry, ext_num_fwd, owner_uid, owner_gid

Reviewed-by: Venky Shankar <vshankar@redhat.com>
Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Rishabh Dave <ridave@redhat.com>

Author: rishabh-d-dave

src/messages/MClientRequest.h

@@ -234,6 +234,12 @@ class MClientRequest final : public MMDSOp {
       copy_from_legacy_head(&head, &old_mds_head);
       head.version = 0;
 
+      head.ext_num_retry = head.num_retry;
+      head.ext_num_fwd = head.num_fwd;
+
+      head.owner_uid = head.caller_uid;
+      head.owner_gid = head.caller_gid;
+
       /* Can't set the btime from legacy struct */
       if (head.op == CEPH_MDS_OP_SETATTR) {
 	int localmask = head.args.setattr.mask;