78 union invalidate_counter {  union
107 static inline union invalidate_counter get_invalidate_counter(struct page_cache *cache,  in get_invalidate_counter()
110 	return (union invalidate_counter) {  in get_invalidate_counter()
117 					  union invalidate_counter invalidate_counter)  in set_invalidate_counter()  argument
120 		   invalidate_counter.value);  in set_invalidate_counter()
123 static inline bool search_pending(union invalidate_counter invalidate_counter)  in search_pending()  argument
125 	return (invalidate_counter.counter & 1) != 0;  in search_pending()
132 	union invalidate_counter invalidate_counter =  in begin_pending_search()  local
135 	invalidate_counter.page = physical_page;  in begin_pending_search()
136 	invalidate_counter.counter++;  in begin_pending_search()
137 	set_invalidate_counter(cache, zone_number, invalidate_counter);  in begin_pending_search()
138 	VDO_ASSERT_LOG_ONLY(search_pending(invalidate_counter),  in begin_pending_search()
151 	union invalidate_counter invalidate_counter;  in end_pending_search()  local
160 	invalidate_counter = get_invalidate_counter(cache, zone_number);  in end_pending_search()
161 	VDO_ASSERT_LOG_ONLY(search_pending(invalidate_counter),  in end_pending_search()
163 	invalidate_counter.counter++;  in end_pending_search()
164 	set_invalidate_counter(cache, zone_number, invalidate_counter);  in end_pending_search()
169 	union invalidate_counter initial_counters[MAX_ZONES];  in wait_for_pending_searches()