+
+ /* Used by readdir */
+ unsigned int op_max_pages;
+
+ __u16 op_mirror_id;
+
+ /*
+ * used to access migrating dir: if it's set, assume migration is
+ * finished, use the new layout to access dir, otherwise use old layout.
+ * By default it's not set, because new files are created under new
+ * layout, if we can't find file with name under both old and new
+ * layout, we are sure file with name doesn't exist, but in reverse
+ * order there may be a race with creation by others.
+ */
+ bool op_post_migrate;
+ /* used to access dir with bash hash */
+ __u32 op_stripe_index;
+ /* Archive ID for PCC attach */
+ __u32 op_archive_id;