The statistics are against you. rmap won't help at all with all the other
kernel allocations, and the dcache/icache is often large, and on big
machines while there may be tens of thousands of idle entries, there will
also be hundreds of _non_idle entries that you can't just remove.
> Slab allocations would not have GFP_DEFRAG (I mistakenly wrote GFP_LARGE
> earlier) and so would be allocated outside ZONE_LARGE.
.. at which poin tyou then get zone balancing problems.
Or we end up with the same kind of special zone that we have _anyway_ in
the current large-page patch, in which case the point of doing this is
what?
Linus
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/