397  * count for the overlapping mappings.  For now, the overlap tracking
427 	int overlap = 0, i;  in active_cacheline_read_overlap()  local
431 			overlap |= 1 << i;  in active_cacheline_read_overlap()
432 	return overlap;  in active_cacheline_read_overlap()
435 static int active_cacheline_set_overlap(phys_addr_t cln, int overlap)  in active_cacheline_set_overlap()  argument
439 	if (overlap > ACTIVE_CACHELINE_MAX_OVERLAP || overlap < 0)  in active_cacheline_set_overlap()
440 		return overlap;  in active_cacheline_set_overlap()
443 		if (overlap & 1 << i)  in active_cacheline_set_overlap()
448 	return overlap;  in active_cacheline_set_overlap()
453 	int overlap = active_cacheline_read_overlap(cln);  in active_cacheline_inc_overlap()  local
455 	overlap = active_cacheline_set_overlap(cln, ++overlap);  in active_cacheline_inc_overlap()
457 	/* If we overflowed the overlap counter then we're potentially  in active_cacheline_inc_overlap()
460 	WARN_ONCE(overlap > ACTIVE_CACHELINE_MAX_OVERLAP,  in active_cacheline_inc_overlap()
467 	int overlap = active_cacheline_read_overlap(cln);  in active_cacheline_dec_overlap()  local
469 	return active_cacheline_set_overlap(cln, --overlap);  in active_cacheline_dec_overlap()
505 	 * cacheline will occur when the overlap count is 0.  in active_cacheline_remove()