Fix --only-write-batch hang with --hard-links.

Fixes bug 8565.

generator.c

@@ -81,6 +81,7 @@ extern int link_dest;
 extern int whole_file;
 extern int list_only;
 extern int read_batch;
+extern int write_batch;
 extern int safe_symlinks;
 extern long block_size; /* "long" because popt can't set an int32. */
 extern int unsort_ndx;
@@ -1813,7 +1814,7 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx,
   notify_others:
 	if (remove_source_files && !delay_updates && !phase && !dry_run)
 		increment_active_files(ndx, itemizing, code);
-	if (inc_recurse && !dry_run)
+	if (inc_recurse && (!dry_run || write_batch < 0))
 		cur_flist->in_progress++;
 #ifdef SUPPORT_HARD_LINKS
 	if (preserve_hard_links && F_IS_HLINKED(file))

hlink.c

@@ -496,7 +496,7 @@ void finish_hard_link(struct file_struct *file, const char *fname, int fin_ndx,
 	int prev_statret, ndx, prev_ndx = F_HL_PREV(file);
 
 	if (stp == NULL && prev_ndx >= 0) {
-		if (link_stat(fname, &st, 0) < 0) {
+		if (link_stat(fname, &st, 0) < 0 && !dry_run) {
 			rsyserr(FERROR_XFER, errno, "stat %s failed",
 				full_fname(fname));
 			return;

receiver.c

@@ -681,6 +681,8 @@ int recv_files(int f_in, int f_out, char *local_name)
 			log_item(FCLIENT, file, iflags, NULL);
 			if (!am_server)
 				discard_receive_data(f_in, F_LENGTH(file));
+			if (inc_recurse)
+				send_msg_int(MSG_SUCCESS, ndx);
 			continue;
 		}