File sleep-try-open-count.diff of Package device-mapper

Index: LVM2.2.02.67/libdm/libdm-deptree.c
===================================================================
--- LVM2.2.02.67.orig/libdm/libdm-deptree.c
+++ LVM2.2.02.67/libdm/libdm-deptree.c
@@ -1143,6 +1143,19 @@ static int _dm_tree_deactivate_children(
 		    (child->presuspend_node &&
 		     !_node_has_closed_parents(child->presuspend_node,
 					       uuid_prefix, uuid_prefix_len))) {
+
+			int idx = 10;
+			while (info.open_count && idx--) {
+				struct timespec ts = {0, 500000000};
+				nanosleep(&ts, NULL);
+				_info_by_dev(dinfo->major, dinfo->minor, 1, &info);
+			}
+
+			if (info.open_count) {
+				log_error("give up on open_count");
+				continue;
+			}
+
 			/* Only report error from (likely non-internal) dependency at top level */
 			if (!level) {
 				log_error("Unable to deactivate open %s (%" PRIu32