Re: [PATCH 2/4] Add replace_page(), change the mapping of pte fromone page into another

[Izik Eidus]

Christoph Lameter wrote:
> Currently page migration assumes that the page will continue to be part
> of the existing file or anon vma.
>   

exactly, and ksm really need it to get out of the existing anon vma!

> What you want sounds like assigning a swap pte to an anonymous page? That
> way a anon page gains membership in a file backed mapping.
>
>
>   

No, i want pte that is found inside vma and point to anonymous page, 
will stop point into the anonymous page
and will point to a whole diffrent page that i chose (for ksm it is 
needed because this way we are mapping alot
of ptes into the same write_protected page and save memory)

--
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/