[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [RFC] Page table sharing
- To: Linus Torvalds <torvalds@transmeta.com>
- Subject: Re: [RFC] Page table sharing
- From: Rik van Riel <riel@conectiva.com.br>
- Date: Mon, 18 Feb 2002 22:22:44 -0300 (BRT)
- cc: Daniel Phillips <phillips@bonn-fries.net>,Hugh Dickins <hugh@veritas.com>, <dmccr@us.ibm.com>,Kernel Mailing List <linux-kernel@vger.kernel.org>,<linux-mm@kvack.org>, Robert Love <rml@tech9.net>,<mingo@redhat.co>, Andrew Morton <akpm@zip.com.au>,<manfred@colorfullife.com>, <wli@holomorphy.com>
- Fake-Sender: owner-linux-mm@kvack.org
- In-Reply-To: <Pine.LNX.4.33.0202181631120.24405-100000@home.transmeta.com>
- Original-Recipient: rfc822;linux-mm-archive@humbolt.geo.uu.nl
- Sender: Rik van Riel <riel@nl.linux.org>
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.
regards,
Rik
--
"Linux holds advantages over the single-vendor commercial OS"
-- Microsoft's "Competing with Linux" document
http://www.surriel.com/ http://distro.conectiva.com/
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/