127 	struct dirty_map dmap[2];  member
468 static int __dirty_map_init(struct dirty_map *dmap, unsigned long nr_words,  in __dirty_map_init()  argument
471 	dmap->changed = 0;  in __dirty_map_init()
473 	dmap->dirty_words = kvzalloc(bitmap_size(nr_words), GFP_KERNEL);  in __dirty_map_init()
474 	if (!dmap->dirty_words)  in __dirty_map_init()
477 	dmap->dirty_regions = kvzalloc(bitmap_size(nr_regions), GFP_KERNEL);  in __dirty_map_init()
478 	if (!dmap->dirty_regions) {  in __dirty_map_init()
479 		kvfree(dmap->dirty_words);  in __dirty_map_init()
486 static void __dirty_map_exit(struct dirty_map *dmap)  in __dirty_map_exit()  argument
488 	kvfree(dmap->dirty_words);  in __dirty_map_exit()
489 	kvfree(dmap->dirty_regions);  in __dirty_map_exit()
494 	if (__dirty_map_init(&cmd->dmap[0], cmd->nr_words, cmd->nr_regions)) {  in dirty_map_init()
499 	if (__dirty_map_init(&cmd->dmap[1], cmd->nr_words, cmd->nr_regions)) {  in dirty_map_init()
501 		__dirty_map_exit(&cmd->dmap[0]);  in dirty_map_init()
505 	cmd->current_dmap = &cmd->dmap[0];  in dirty_map_init()
513 	__dirty_map_exit(&cmd->dmap[0]);  in dirty_map_exit()
514 	__dirty_map_exit(&cmd->dmap[1]);  in dirty_map_exit()
734 static int __flush_dmap(struct dm_clone_metadata *cmd, struct dirty_map *dmap)  in __flush_dmap()  argument
741 		word = find_next_bit(dmap->dirty_words, cmd->nr_words, word);  in __flush_dmap()
746 		r = __update_metadata_word(cmd, dmap->dirty_regions, word);  in __flush_dmap()
751 		__clear_bit(word, dmap->dirty_words);  in __flush_dmap()
762 	dmap->changed = 0;  in __flush_dmap()
771 	struct dirty_map *dmap, *next_dmap;  in dm_clone_metadata_pre_commit()  local
781 	dmap = cmd->current_dmap;  in dm_clone_metadata_pre_commit()
784 	next_dmap = (dmap == &cmd->dmap[0]) ? &cmd->dmap[1] : &cmd->dmap[0];  in dm_clone_metadata_pre_commit()
801 	cmd->committing_dmap = dmap;  in dm_clone_metadata_pre_commit()
836 	struct dirty_map *dmap;  in dm_clone_set_region_hydrated()  local
854 	dmap = cmd->current_dmap;  in dm_clone_set_region_hydrated()
856 	__set_bit(word, dmap->dirty_words);  in dm_clone_set_region_hydrated()
857 	__set_bit(region_nr, dmap->dirty_regions);  in dm_clone_set_region_hydrated()
859 	dmap->changed = 1;  in dm_clone_set_region_hydrated()
871 	struct dirty_map *dmap;  in dm_clone_cond_set_range()  local
888 	dmap = cmd->current_dmap;  in dm_clone_cond_set_range()
892 			__set_bit(word, dmap->dirty_words);  in dm_clone_cond_set_range()
893 			__set_bit(region_nr, dmap->dirty_regions);  in dm_clone_cond_set_range()
895 			dmap->changed = 1;  in dm_clone_cond_set_range()
936 	r = cmd->dmap[0].changed || cmd->dmap[1].changed;  in dm_clone_changed_this_transaction()