static inline pagemap_entry_t make_pme(u64 frame, u64 flags)
{
	return (pagemap_entry_t) { .pme = (frame & PM_PFRAME_MASK) | flags };
}

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.