> Rik, do you think it is really necessary to take the page lock and
> release it inside lookup_swap_cache? I may be overlooking something,
> but I can't see the benefit of it ---
I don't think we need to do this, except to protect us from
using a page which isn't up-to-date yet and locked because
of disk IO.
Reclaim_page() takes the pagecache_lock before trying to
free anything, so there's no reason to lock against that.
regards,
Rik
-- Virtual memory is like a game you can't win; However, without VM there's truly nothing to lose...http://www.surriel.com/ http://www.conectiva.com/ http://distro.conectiva.com.br/
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