static void __clear_nat_cache_dirty(struct f2fs_nm_info *nm_i,
		struct nat_entry_set *set, struct nat_entry *ne)
{
	list_move_tail(&ne->list, &nm_i->nat_entries);
	set_nat_flag(ne, IS_DIRTY, false);
	set->entry_cnt--;
	nm_i->dirty_nat_cnt--;
}

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.