+static inline bool
+lnet_ni_set_status_locked(struct lnet_ni *ni, __u32 status)
+__must_hold(&ni->ni_lock)
+{
+ bool update = false;
+
+ if (ni->ni_status && ni->ni_status->ns_status != status) {
+ CDEBUG(D_NET, "ni %s status changed from %#x to %#x\n",
+ libcfs_nid2str(ni->ni_nid),
+ ni->ni_status->ns_status, status);
+ ni->ni_status->ns_status = status;
+ update = true;
+ }
+
+ return update;
+}
+
+static inline bool
+lnet_ni_set_status(struct lnet_ni *ni, __u32 status)
+{
+ bool update;
+
+ lnet_ni_lock(ni);
+ update = lnet_ni_set_status_locked(ni, status);
+ lnet_ni_unlock(ni);
+
+ return update;
+}
+
+static inline void lnet_md_wait_handling(struct lnet_libmd *md, int cpt)
+{
+ wait_queue_head_t *wq = __var_waitqueue(md);
+#ifdef HAVE_WAIT_QUEUE_ENTRY
+ struct wait_bit_queue_entry entry;
+ wait_queue_entry_t *wqe = &entry.wq_entry;
+#else
+ struct wait_bit_queue entry;
+ wait_queue_entry_t *wqe = &entry.wait;
+#endif
+ init_wait_var_entry(&entry, md, 0);
+ prepare_to_wait_event(wq, wqe, TASK_IDLE);
+ if (md->md_flags & LNET_MD_FLAG_HANDLING) {
+ /* Race with unlocked call to ->md_handler.
+ * It is safe to drop the res_lock here as the
+ * caller has only just claimed it.
+ */
+ lnet_res_unlock(cpt);
+ schedule();
+ /* Cannot check md now, it might be freed. Caller
+ * must reclaim reference and check.
+ */
+ lnet_res_lock(cpt);
+ }
+ finish_wait(wq, wqe);
+}
+