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()
670 	struct ovl_dir_file *od = file->private_data;  in ovl_is_impure_dir()  local
679 	return od->is_upper && ovl_test_flag(OVL_IMPURE, dir);  in ovl_is_impure_dir()
686 	struct ovl_dir_file *od = file->private_data;  in ovl_iterate_real()  local
717 	err = iterate_dir(od->realfile, &rdt.ctx);  in ovl_iterate_real()
726 	struct ovl_dir_file *od = file->private_data;  in ovl_iterate()  local
734 	if (od->is_real) {  in ovl_iterate()
746 		return iterate_dir(od->realfile, ctx);  in ovl_iterate()
749 	if (!od->cache) {  in ovl_iterate()
756 		od->cache = cache;  in ovl_iterate()
757 		ovl_seek_cursor(od, ctx->pos);  in ovl_iterate()
760 	while (od->cursor != &od->cache->entries) {  in ovl_iterate()
761 		p = list_entry(od->cursor, struct ovl_cache_entry, l_node);  in ovl_iterate()
771 		od->cursor = p->l_node.next;  in ovl_iterate()
780 	struct ovl_dir_file *od = file->private_data;  in ovl_dir_llseek()  local
786 	if (od->is_real) {  in ovl_dir_llseek()
787 		res = vfs_llseek(od->realfile, offset, origin);  in ovl_dir_llseek()
788 		file->f_pos = od->realfile->f_pos;  in ovl_dir_llseek()
806 			if (od->cache)  in ovl_dir_llseek()
807 				ovl_seek_cursor(od, offset);  in ovl_dir_llseek()
820 	struct ovl_dir_file *od = file->private_data;  in ovl_dir_fsync()  local
822 	struct file *realfile = od->realfile;  in ovl_dir_fsync()
831 	if (!od->is_upper) {  in ovl_dir_fsync()
834 		realfile = READ_ONCE(od->upperfile);  in ovl_dir_fsync()
842 			if (!od->upperfile) {  in ovl_dir_fsync()
847 				smp_store_release(&od->upperfile, realfile);  in ovl_dir_fsync()
852 				realfile = od->upperfile;  in ovl_dir_fsync()
863 	struct ovl_dir_file *od = file->private_data;  in ovl_dir_release()  local
865 	if (od->cache) {  in ovl_dir_release()
867 		ovl_cache_put(od, file->f_path.dentry);  in ovl_dir_release()
870 	fput(od->realfile);  in ovl_dir_release()
871 	if (od->upperfile)  in ovl_dir_release()
872 		fput(od->upperfile);  in ovl_dir_release()
873 	kfree(od);  in ovl_dir_release()
882 	struct ovl_dir_file *od;  in ovl_dir_open()  local
885 	od = kzalloc(sizeof(struct ovl_dir_file), GFP_KERNEL);  in ovl_dir_open()
886 	if (!od)  in ovl_dir_open()
892 		kfree(od);  in ovl_dir_open()
895 	od->realfile = realfile;  in ovl_dir_open()
896 	od->is_real = ovl_dir_is_real(file->f_path.dentry);  in ovl_dir_open()
897 	od->is_upper = OVL_TYPE_UPPER(type);  in ovl_dir_open()
898 	file->private_data = od;  in ovl_dir_open()