+
+ /**
+ * How many pages are using this lock for io, currently only used by
+ * read-ahead. If non-zero, the underlying dlm lock won't be cancelled
+ * during recovery to avoid deadlock. see bz16774.
+ *
+ * \see osc_page::ops_lock
+ * \see osc_page_addref_lock(), osc_page_putref_lock()
+ */
+ cfs_atomic_t ols_pageref;
+