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()
324 	struct ovl_dir_file *od = file->private_data;  in ovl_dir_reset()  local
325 	struct ovl_dir_cache *cache = od->cache;  in ovl_dir_reset()
330 		ovl_cache_put(od, dentry);  in ovl_dir_reset()
331 		od->cache = NULL;  in ovl_dir_reset()
332 		od->cursor = NULL;  in ovl_dir_reset()
335 	if (od->is_real != is_real) {  in ovl_dir_reset()
339 		od->is_real = false;  in ovl_dir_reset()
379 static void ovl_seek_cursor(struct ovl_dir_file *od, loff_t pos)  in ovl_seek_cursor()  argument
384 	list_for_each(p, &od->cache->entries) {  in ovl_seek_cursor()
390 	od->cursor = p;  in ovl_seek_cursor()
675 	struct ovl_dir_file *od = file->private_data;  in ovl_is_impure_dir()  local
684 	return od->is_upper && ovl_test_flag(OVL_IMPURE, dir);  in ovl_is_impure_dir()
691 	struct ovl_dir_file *od = file->private_data;  in ovl_iterate_real()  local
723 	err = iterate_dir(od->realfile, &rdt.ctx);  in ovl_iterate_real()
732 	struct ovl_dir_file *od = file->private_data;  in ovl_iterate()  local
742 	if (od->is_real) {  in ovl_iterate()
754 			err = iterate_dir(od->realfile, ctx);  in ovl_iterate()
759 	if (!od->cache) {  in ovl_iterate()
767 		od->cache = cache;  in ovl_iterate()
768 		ovl_seek_cursor(od, ctx->pos);  in ovl_iterate()
771 	while (od->cursor != &od->cache->entries) {  in ovl_iterate()
772 		p = list_entry(od->cursor, struct ovl_cache_entry, l_node);  in ovl_iterate()
782 		od->cursor = p->l_node.next;  in ovl_iterate()
794 	struct ovl_dir_file *od = file->private_data;  in ovl_dir_llseek()  local
800 	if (od->is_real) {  in ovl_dir_llseek()
801 		res = vfs_llseek(od->realfile, offset, origin);  in ovl_dir_llseek()
802 		file->f_pos = od->realfile->f_pos;  in ovl_dir_llseek()
820 			if (od->cache)  in ovl_dir_llseek()
821 				ovl_seek_cursor(od, offset);  in ovl_dir_llseek()
854 	struct ovl_dir_file *od = file->private_data;  in ovl_dir_real_file()  local
856 	struct file *old, *realfile = od->realfile;  in ovl_dir_real_file()
864 	if (!od->is_upper) {  in ovl_dir_real_file()
865 		realfile = READ_ONCE(od->upperfile);  in ovl_dir_real_file()
874 			old = cmpxchg_release(&od->upperfile, NULL, realfile);  in ovl_dir_real_file()
907 	struct ovl_dir_file *od = file->private_data;  in ovl_dir_release()  local
909 	if (od->cache) {  in ovl_dir_release()
911 		ovl_cache_put(od, file->f_path.dentry);  in ovl_dir_release()
914 	fput(od->realfile);  in ovl_dir_release()
915 	if (od->upperfile)  in ovl_dir_release()
916 		fput(od->upperfile);  in ovl_dir_release()
917 	kfree(od);  in ovl_dir_release()
926 	struct ovl_dir_file *od;  in ovl_dir_open()  local
929 	od = kzalloc(sizeof(struct ovl_dir_file), GFP_KERNEL);  in ovl_dir_open()
930 	if (!od)  in ovl_dir_open()
936 		kfree(od);  in ovl_dir_open()
939 	od->realfile = realfile;  in ovl_dir_open()
940 	od->is_real = ovl_dir_is_real(file->f_path.dentry);  in ovl_dir_open()
941 	od->is_upper = OVL_TYPE_UPPER(type);  in ovl_dir_open()
942 	file->private_data = od;  in ovl_dir_open()