238 static void ovl_cache_put(struct ovl_dir_file *od, struct dentry *dentry)  in ovl_cache_put()  argument
240 	struct ovl_dir_cache *cache = od->cache;  in ovl_cache_put()
336 	struct ovl_dir_file *od = file->private_data;  in ovl_dir_reset()  local
337 	struct ovl_dir_cache *cache = od->cache;  in ovl_dir_reset()
342 		ovl_cache_put(od, dentry);  in ovl_dir_reset()
343 		od->cache = NULL;  in ovl_dir_reset()
344 		od->cursor = NULL;  in ovl_dir_reset()
347 	if (od->is_real != is_real) {  in ovl_dir_reset()
351 		od->is_real = false;  in ovl_dir_reset()
391 static void ovl_seek_cursor(struct ovl_dir_file *od, loff_t pos)  in ovl_seek_cursor()  argument
396 	list_for_each(p, &od->cache->entries) {  in ovl_seek_cursor()
402 	od->cursor = p;  in ovl_seek_cursor()
687 	struct ovl_dir_file *od = file->private_data;  in ovl_is_impure_dir()  local
696 	return od->is_upper && ovl_test_flag(OVL_IMPURE, dir);  in ovl_is_impure_dir()
703 	struct ovl_dir_file *od = file->private_data;  in ovl_iterate_real()  local
735 	err = iterate_dir(od->realfile, &rdt.ctx);  in ovl_iterate_real()
744 	struct ovl_dir_file *od = file->private_data;  in ovl_iterate()  local
754 	if (od->is_real) {  in ovl_iterate()
766 			err = iterate_dir(od->realfile, ctx);  in ovl_iterate()
771 	if (!od->cache) {  in ovl_iterate()
779 		od->cache = cache;  in ovl_iterate()
780 		ovl_seek_cursor(od, ctx->pos);  in ovl_iterate()
783 	while (od->cursor != &od->cache->entries) {  in ovl_iterate()
784 		p = list_entry(od->cursor, struct ovl_cache_entry, l_node);  in ovl_iterate()
794 		od->cursor = p->l_node.next;  in ovl_iterate()
806 	struct ovl_dir_file *od = file->private_data;  in ovl_dir_llseek()  local
812 	if (od->is_real) {  in ovl_dir_llseek()
813 		res = vfs_llseek(od->realfile, offset, origin);  in ovl_dir_llseek()
814 		file->f_pos = od->realfile->f_pos;  in ovl_dir_llseek()
832 			if (od->cache)  in ovl_dir_llseek()
833 				ovl_seek_cursor(od, offset);  in ovl_dir_llseek()
866 	struct ovl_dir_file *od = file->private_data;  in ovl_dir_real_file()  local
868 	struct file *realfile = od->realfile;  in ovl_dir_real_file()
876 	if (!od->is_upper) {  in ovl_dir_real_file()
879 		realfile = READ_ONCE(od->upperfile);  in ovl_dir_real_file()
887 			if (!od->upperfile) {  in ovl_dir_real_file()
892 				smp_store_release(&od->upperfile, realfile);  in ovl_dir_real_file()
897 				realfile = od->upperfile;  in ovl_dir_real_file()
927 	struct ovl_dir_file *od = file->private_data;  in ovl_dir_release()  local
929 	if (od->cache) {  in ovl_dir_release()
931 		ovl_cache_put(od, file->f_path.dentry);  in ovl_dir_release()
934 	fput(od->realfile);  in ovl_dir_release()
935 	if (od->upperfile)  in ovl_dir_release()
936 		fput(od->upperfile);  in ovl_dir_release()
937 	kfree(od);  in ovl_dir_release()
946 	struct ovl_dir_file *od;  in ovl_dir_open()  local
949 	od = kzalloc(sizeof(struct ovl_dir_file), GFP_KERNEL);  in ovl_dir_open()
950 	if (!od)  in ovl_dir_open()
956 		kfree(od);  in ovl_dir_open()
959 	od->realfile = realfile;  in ovl_dir_open()
960 	od->is_real = ovl_dir_is_real(file->f_path.dentry);  in ovl_dir_open()
961 	od->is_upper = OVL_TYPE_UPPER(type);  in ovl_dir_open()
962 	file->private_data = od;  in ovl_dir_open()