Re: Defrag in shrinkers

[Andi Kleen <andi@xxxxxxxxxxxxxx>]

Christoph Lameter <cl@xxxxxxxxx> writes:

> Would it also be possible to add some defragmentation logic when you
> revise the shrinkers? Here is a prototype patch that would allow you to
> determine the other objects sitting in the same page as a given object.
>
> With that I hope that you have enough information to determine if its
> worth to evict the other objects as well to reclaim the slab page.

I like the idea, it would be useful for the hwpoison code too,
when it tries to clean a page.

-Andi

-- 
ak@xxxxxxxxxxxxxxx -- Speaking for myself only.