Re: [RFC] Page table sharing

From: Daniel Phillips (phillips@bonn-fries.net)
Date: Mon Feb 18 2002 - 20:29:29 EST


On February 19, 2002 02:22 am, Rik van Riel wrote:
> On Mon, 18 Feb 2002, Linus Torvalds wrote:
> > On Tue, 19 Feb 2002, Daniel Phillips wrote:
> > >
> > > Thanks, here it is again.
> >
> > Daniel, there's something wrong in the locking.
>
> > Does anybody see any reason why this doesn't work totally without the
> > lock?
>
> We'll need protection from the swapout code. It would be
> embarassing if the page fault handler would run for one
> mm while kswapd was holding the page_table_lock for another
> mm.
>
> I'm not sure how the page_table_share_lock is supposed
> to fix that one, though.

It doesn't, at present. This needs to be addressed.

-- 
Daniel
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Sat Feb 23 2002 - 21:00:17 EST