Re: MAP_SHARED handling

[Rik van Riel <riel@conectiva.com.br>]

On Thu, 5 Sep 2002, Andrew Morton wrote:

> One thing bugs me a little bit.

> - We'll be calling ->vm_writeback() once per page, and it'll only
>   discover a single dirty page on swapper_space.dirty_pages.

> So....  Could we do something like: if the try_to_unmap() call turned
> the page from !PageDirty to PageDirty, give it another go around the
> list?

FreeBSD is doing this and seems to be getting good results
with it, so I guess it'll improve our VM too ;)

Rik
-- 
Bravely reimplemented by the knights who say "NIH".

http://www.surriel.com/		http://distro.conectiva.com/

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