463 static int active_cacheline_read_overlap(phys_addr_t cln)  in active_cacheline_read_overlap()  argument
468 		if (radix_tree_tag_get(&dma_active_cacheline, cln, i))  in active_cacheline_read_overlap()
473 static int active_cacheline_set_overlap(phys_addr_t cln, int overlap)  in active_cacheline_set_overlap()  argument
482 			radix_tree_tag_set(&dma_active_cacheline, cln, i);  in active_cacheline_set_overlap()
484 			radix_tree_tag_clear(&dma_active_cacheline, cln, i);  in active_cacheline_set_overlap()
489 static void active_cacheline_inc_overlap(phys_addr_t cln)  in active_cacheline_inc_overlap()  argument
491 	int overlap = active_cacheline_read_overlap(cln);  in active_cacheline_inc_overlap()
493 	overlap = active_cacheline_set_overlap(cln, ++overlap);  in active_cacheline_inc_overlap()
500 		  ACTIVE_CACHELINE_MAX_OVERLAP, &cln);  in active_cacheline_inc_overlap()
503 static int active_cacheline_dec_overlap(phys_addr_t cln)  in active_cacheline_dec_overlap()  argument
505 	int overlap = active_cacheline_read_overlap(cln);  in active_cacheline_dec_overlap()
507 	return active_cacheline_set_overlap(cln, --overlap);  in active_cacheline_dec_overlap()
512 	phys_addr_t cln = to_cacheline_number(entry);  in active_cacheline_insert()  local
524 	rc = radix_tree_insert(&dma_active_cacheline, cln, entry);  in active_cacheline_insert()
526 		active_cacheline_inc_overlap(cln);  in active_cacheline_insert()
534 	phys_addr_t cln = to_cacheline_number(entry);  in active_cacheline_remove()  local
546 	if (active_cacheline_dec_overlap(cln) < 0)  in active_cacheline_remove()
547 		radix_tree_delete(&dma_active_cacheline, cln);  in active_cacheline_remove()