407  * count for the overlapping mappings.  For now, the overlap tracking
437 	int overlap = 0, i;  in active_cacheline_read_overlap()  local
441 			overlap |= 1 << i;  in active_cacheline_read_overlap()
442 	return overlap;  in active_cacheline_read_overlap()
445 static int active_cacheline_set_overlap(phys_addr_t cln, int overlap)  in active_cacheline_set_overlap()  argument
449 	if (overlap > ACTIVE_CACHELINE_MAX_OVERLAP || overlap < 0)  in active_cacheline_set_overlap()
450 		return overlap;  in active_cacheline_set_overlap()
453 		if (overlap & 1 << i)  in active_cacheline_set_overlap()
458 	return overlap;  in active_cacheline_set_overlap()
463 	int overlap = active_cacheline_read_overlap(cln);  in active_cacheline_inc_overlap()  local
465 	overlap = active_cacheline_set_overlap(cln, ++overlap);  in active_cacheline_inc_overlap()
467 	/* If we overflowed the overlap counter then we're potentially  in active_cacheline_inc_overlap()
470 	WARN_ONCE(overlap > ACTIVE_CACHELINE_MAX_OVERLAP,  in active_cacheline_inc_overlap()
477 	int overlap = active_cacheline_read_overlap(cln);  in active_cacheline_dec_overlap()  local
479 	return active_cacheline_set_overlap(cln, --overlap);  in active_cacheline_dec_overlap()
515 	 * cacheline will occur when the overlap count is 0.  in active_cacheline_remove()