241 static void ovl_cache_put(struct ovl_dir_file *od, struct dentry *dentry)  in ovl_cache_put()  argument
243 	struct ovl_dir_cache *cache = od->cache;  in ovl_cache_put()
339 	struct ovl_dir_file *od = file->private_data;  in ovl_dir_reset()  local
340 	struct ovl_dir_cache *cache = od->cache;  in ovl_dir_reset()
345 		ovl_cache_put(od, dentry);  in ovl_dir_reset()
346 		od->cache = NULL;  in ovl_dir_reset()
347 		od->cursor = NULL;  in ovl_dir_reset()
350 	if (od->is_real != is_real) {  in ovl_dir_reset()
354 		od->is_real = false;  in ovl_dir_reset()
394 static void ovl_seek_cursor(struct ovl_dir_file *od, loff_t pos)  in ovl_seek_cursor()  argument
399 	list_for_each(p, &od->cache->entries) {  in ovl_seek_cursor()
405 	od->cursor = p;  in ovl_seek_cursor()
679 	struct ovl_dir_file *od = file->private_data;  in ovl_is_impure_dir()  local
688 	return od->is_upper && ovl_test_flag(OVL_IMPURE, dir);  in ovl_is_impure_dir()
695 	struct ovl_dir_file *od = file->private_data;  in ovl_iterate_real()  local
726 	err = iterate_dir(od->realfile, &rdt.ctx);  in ovl_iterate_real()
735 	struct ovl_dir_file *od = file->private_data;  in ovl_iterate()  local
745 	if (od->is_real) {  in ovl_iterate()
757 			err = iterate_dir(od->realfile, ctx);  in ovl_iterate()
762 	if (!od->cache) {  in ovl_iterate()
770 		od->cache = cache;  in ovl_iterate()
771 		ovl_seek_cursor(od, ctx->pos);  in ovl_iterate()
774 	while (od->cursor != &od->cache->entries) {  in ovl_iterate()
775 		p = list_entry(od->cursor, struct ovl_cache_entry, l_node);  in ovl_iterate()
785 		od->cursor = p->l_node.next;  in ovl_iterate()
797 	struct ovl_dir_file *od = file->private_data;  in ovl_dir_llseek()  local
803 	if (od->is_real) {  in ovl_dir_llseek()
804 		res = vfs_llseek(od->realfile, offset, origin);  in ovl_dir_llseek()
805 		file->f_pos = od->realfile->f_pos;  in ovl_dir_llseek()
823 			if (od->cache)  in ovl_dir_llseek()
824 				ovl_seek_cursor(od, offset);  in ovl_dir_llseek()
850 	struct ovl_dir_file *od = file->private_data;  in ovl_dir_fsync()  local
852 	struct file *realfile = od->realfile;  in ovl_dir_fsync()
861 	if (!od->is_upper) {  in ovl_dir_fsync()
864 		realfile = READ_ONCE(od->upperfile);  in ovl_dir_fsync()
872 			if (!od->upperfile) {  in ovl_dir_fsync()
877 				smp_store_release(&od->upperfile, realfile);  in ovl_dir_fsync()
882 				realfile = od->upperfile;  in ovl_dir_fsync()
893 	struct ovl_dir_file *od = file->private_data;  in ovl_dir_release()  local
895 	if (od->cache) {  in ovl_dir_release()
897 		ovl_cache_put(od, file->f_path.dentry);  in ovl_dir_release()
900 	fput(od->realfile);  in ovl_dir_release()
901 	if (od->upperfile)  in ovl_dir_release()
902 		fput(od->upperfile);  in ovl_dir_release()
903 	kfree(od);  in ovl_dir_release()
912 	struct ovl_dir_file *od;  in ovl_dir_open()  local
915 	od = kzalloc(sizeof(struct ovl_dir_file), GFP_KERNEL);  in ovl_dir_open()
916 	if (!od)  in ovl_dir_open()
922 		kfree(od);  in ovl_dir_open()
925 	od->realfile = realfile;  in ovl_dir_open()
926 	od->is_real = ovl_dir_is_real(file->f_path.dentry);  in ovl_dir_open()
927 	od->is_upper = OVL_TYPE_UPPER(type);  in ovl_dir_open()
928 	file->private_data = od;  in ovl_dir_open()