struct page field arrangement

A change early last year reordered struct page so that ptl overlaps not only
private, but also mapping. Since spinlock_t can be much larger, I'm wondering
whether there's a reason to not also overlay the space index and lru take -
are these used for anything on page table pages?

Thanks, Jan
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/