drivers/md/dm-clone-metadata.c

122 	unsigned long nr_regions;
381 			     cmd->nr_regions, false, &cmd->bitset_root);
383 		DMERR("Failed to resize on-disk bitset to %lu entries", cmd->nr_regions);
474 			    unsigned long nr_regions)
482 	dmap->dirty_regions = kvzalloc(bitmap_size(nr_regions), GFP_KERNEL);
499 	if (__dirty_map_init(&cmd->dmap[0], cmd->nr_words, cmd->nr_regions)) {
504 	if (__dirty_map_init(&cmd->dmap[1], cmd->nr_words, cmd->nr_regions)) {
533 	r = dm_bitset_cursor_begin(&cmd->bitset_info, cmd->bitset_root, cmd->nr_regions, &c);
543 		if (i >= (cmd->nr_regions - 1))
573 	cmd->nr_regions = dm_sector_div_up(cmd->target_size, cmd->region_size);
574 	cmd->nr_words = BITS_TO_LONGS(cmd->nr_regions);
582 	cmd->region_map = kvmalloc(bitmap_size(cmd->nr_regions), GFP_KERNEL);
603 	if (bitmap_full(cmd->region_map, cmd->nr_regions))
641 				unsigned long start, unsigned long nr_regions)
648 	bit = find_next_zero_bit(cmd->region_map, cmd->nr_regions, start);
650 	return (bit >= (start + nr_regions));
655 	return bitmap_weight(cmd->region_map, cmd->nr_regions);
661 	return find_next_zero_bit(cmd->region_map, cmd->nr_regions, start);
670 	unsigned long max_index = min(cmd->nr_regions, (word + 1) * BITS_PER_LONG);
736 	if (bitmap_full(cmd->region_map, cmd->nr_regions))
847 	if (unlikely(region_nr >= cmd->nr_regions)) {
849 		      region_nr, cmd->nr_regions);
876 			    unsigned long nr_regions)
882 	if (unlikely(start >= cmd->nr_regions || (start + nr_regions) < start ||
883 		     (start + nr_regions) > cmd->nr_regions)) {
884 		DMERR("Invalid region range: start %lu, nr_regions %lu (total number of regions %lu)",
885 		      start, nr_regions, cmd->nr_regions);
897 	for (region_nr = start; region_nr < (start + nr_regions); region_nr++) {