On Fri, Nov 19, 2010 at 9:38 AM, Andrea Arcangeli <aarcange@xxxxxxxxxx> wrote:
>
> We decided the kmalloc was ok, but Linus didn't like this approach. I
> kept it in my tree because I didn't want to remember when/if to add the
> special check in the accurate rmap walks. I find it simpler if all
> rmap walks are accurate by default.
Why isn't the existing cheap solution sufficient?
My opinion is still that we shouldn't add the expense to the common
case, and it's the uncommon case (migration) that should just handle
it.
Linus
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