127 	struct dirty_map dmap[2];  member
479 static int __dirty_map_init(struct dirty_map *dmap, unsigned long nr_words,  in __dirty_map_init()  argument
482 	dmap->changed = 0;  in __dirty_map_init()
484 	dmap->dirty_words = kvzalloc(bitmap_size(nr_words), GFP_KERNEL);  in __dirty_map_init()
485 	if (!dmap->dirty_words)  in __dirty_map_init()
488 	dmap->dirty_regions = kvzalloc(bitmap_size(nr_regions), GFP_KERNEL);  in __dirty_map_init()
489 	if (!dmap->dirty_regions) {  in __dirty_map_init()
490 		kvfree(dmap->dirty_words);  in __dirty_map_init()
497 static void __dirty_map_exit(struct dirty_map *dmap)  in __dirty_map_exit()  argument
499 	kvfree(dmap->dirty_words);  in __dirty_map_exit()
500 	kvfree(dmap->dirty_regions);  in __dirty_map_exit()
505 	if (__dirty_map_init(&cmd->dmap[0], cmd->nr_words, cmd->nr_regions)) {  in dirty_map_init()
510 	if (__dirty_map_init(&cmd->dmap[1], cmd->nr_words, cmd->nr_regions)) {  in dirty_map_init()
512 		__dirty_map_exit(&cmd->dmap[0]);  in dirty_map_init()
516 	cmd->current_dmap = &cmd->dmap[0];  in dirty_map_init()
524 	__dirty_map_exit(&cmd->dmap[0]);  in dirty_map_exit()
525 	__dirty_map_exit(&cmd->dmap[1]);  in dirty_map_exit()
748 static int __flush_dmap(struct dm_clone_metadata *cmd, struct dirty_map *dmap)  in __flush_dmap()  argument
755 		word = find_next_bit(dmap->dirty_words, cmd->nr_words, word);  in __flush_dmap()
760 		r = __update_metadata_word(cmd, dmap->dirty_regions, word);  in __flush_dmap()
765 		__clear_bit(word, dmap->dirty_words);  in __flush_dmap()
776 	dmap->changed = 0;  in __flush_dmap()
785 	struct dirty_map *dmap, *next_dmap;  in dm_clone_metadata_pre_commit()  local
795 	dmap = cmd->current_dmap;  in dm_clone_metadata_pre_commit()
798 	next_dmap = (dmap == &cmd->dmap[0]) ? &cmd->dmap[1] : &cmd->dmap[0];  in dm_clone_metadata_pre_commit()
815 	cmd->committing_dmap = dmap;  in dm_clone_metadata_pre_commit()
850 	struct dirty_map *dmap;  in dm_clone_set_region_hydrated()  local
868 	dmap = cmd->current_dmap;  in dm_clone_set_region_hydrated()
870 	__set_bit(word, dmap->dirty_words);  in dm_clone_set_region_hydrated()
871 	__set_bit(region_nr, dmap->dirty_regions);  in dm_clone_set_region_hydrated()
873 	dmap->changed = 1;  in dm_clone_set_region_hydrated()
885 	struct dirty_map *dmap;  in dm_clone_cond_set_range()  local
902 	dmap = cmd->current_dmap;  in dm_clone_cond_set_range()
906 			__set_bit(word, dmap->dirty_words);  in dm_clone_cond_set_range()
907 			__set_bit(region_nr, dmap->dirty_regions);  in dm_clone_cond_set_range()
909 			dmap->changed = 1;  in dm_clone_cond_set_range()
950 	r = cmd->dmap[0].changed || cmd->dmap[1].changed;  in dm_clone_changed_this_transaction()