ftl: call trace_path() in ftl_sync() to get the page descriptor to write out

source/ftl/ftl.c

@@ -132,6 +132,7 @@ int ftl_sync(struct ftl_map *map)
 {
 	struct ftl_page_desc page_desc;
 	size_t len;
+	int ret;
 	uint32_t dst, src;
 
 	if (!(map->outstanding.flags & FTL_PRESENT))
@@ -148,6 +149,10 @@ int ftl_sync(struct ftl_map *map)
 
 	page_desc.nused_pages = map->nused_pages;
 
+	if ((ret = trace_path(map, &page_desc, NULL, map->outstanding.va)) < 0 &&
+		ret != -ERR_NOT_FOUND)
+		return -1;
+
 	if (write_page_desc(map, &page_desc) < 0)
 		return -1;