173 static void ovl_cache_put(struct ovl_dir_file *od, struct dentry *dentry)  in ovl_cache_put()  argument
175 	struct ovl_dir_cache *cache = od->cache;  in ovl_cache_put()
269 	struct ovl_dir_file *od = file->private_data;  in ovl_dir_reset()  local
270 	struct ovl_dir_cache *cache = od->cache;  in ovl_dir_reset()
275 		ovl_cache_put(od, dentry);  in ovl_dir_reset()
276 		od->cache = NULL;  in ovl_dir_reset()
277 		od->cursor = NULL;  in ovl_dir_reset()
279 	WARN_ON(!od->is_real && !OVL_TYPE_MERGE(type));  in ovl_dir_reset()
280 	if (od->is_real && OVL_TYPE_MERGE(type))  in ovl_dir_reset()
281 		od->is_real = false;  in ovl_dir_reset()
317 static void ovl_seek_cursor(struct ovl_dir_file *od, loff_t pos)  in ovl_seek_cursor()  argument
322 	list_for_each(p, &od->cache->entries) {  in ovl_seek_cursor()
328 	od->cursor = p;  in ovl_seek_cursor()
365 	struct ovl_dir_file *od = file->private_data;  in ovl_iterate()  local
372 	if (od->is_real)  in ovl_iterate()
373 		return iterate_dir(od->realfile, ctx);  in ovl_iterate()
375 	if (!od->cache) {  in ovl_iterate()
382 		od->cache = cache;  in ovl_iterate()
383 		ovl_seek_cursor(od, ctx->pos);  in ovl_iterate()
386 	while (od->cursor != &od->cache->entries) {  in ovl_iterate()
387 		p = list_entry(od->cursor, struct ovl_cache_entry, l_node);  in ovl_iterate()
391 		od->cursor = p->l_node.next;  in ovl_iterate()
400 	struct ovl_dir_file *od = file->private_data;  in ovl_dir_llseek()  local
406 	if (od->is_real) {  in ovl_dir_llseek()
407 		res = vfs_llseek(od->realfile, offset, origin);  in ovl_dir_llseek()
408 		file->f_pos = od->realfile->f_pos;  in ovl_dir_llseek()
426 			if (od->cache)  in ovl_dir_llseek()
427 				ovl_seek_cursor(od, offset);  in ovl_dir_llseek()
440 	struct ovl_dir_file *od = file->private_data;  in ovl_dir_fsync()  local
442 	struct file *realfile = od->realfile;  in ovl_dir_fsync()
447 	if (!od->is_upper && OVL_TYPE_UPPER(ovl_path_type(dentry))) {  in ovl_dir_fsync()
450 		realfile = lockless_dereference(od->upperfile);  in ovl_dir_fsync()
458 			if (!od->upperfile) {  in ovl_dir_fsync()
463 				od->upperfile = realfile;  in ovl_dir_fsync()
468 				realfile = od->upperfile;  in ovl_dir_fsync()
479 	struct ovl_dir_file *od = file->private_data;  in ovl_dir_release()  local
481 	if (od->cache) {  in ovl_dir_release()
483 		ovl_cache_put(od, file->f_path.dentry);  in ovl_dir_release()
486 	fput(od->realfile);  in ovl_dir_release()
487 	if (od->upperfile)  in ovl_dir_release()
488 		fput(od->upperfile);  in ovl_dir_release()
489 	kfree(od);  in ovl_dir_release()
498 	struct ovl_dir_file *od;  in ovl_dir_open()  local
501 	od = kzalloc(sizeof(struct ovl_dir_file), GFP_KERNEL);  in ovl_dir_open()
502 	if (!od)  in ovl_dir_open()
508 		kfree(od);  in ovl_dir_open()
511 	od->realfile = realfile;  in ovl_dir_open()
512 	od->is_real = !OVL_TYPE_MERGE(type);  in ovl_dir_open()
513 	od->is_upper = OVL_TYPE_UPPER(type);  in ovl_dir_open()
514 	file->private_data = od;  in ovl_dir_open()