From: "Stephen C. Tweedie" <sct@redhat.com>
To: "Rodrigo S. de Castro" <rcastro@linux.ime.usp.br>
Cc: linux-mm@kvack.org
Subject: Re: ptes flags in compressed cache
Date: Thu, 26 Oct 2000 16:58:21 +0100 [thread overview]
Message-ID: <20001026165821.W20050@redhat.com> (raw)
In-Reply-To: <20001026135245.B19100@linux.ime.usp.br>; from rcastro@linux.ime.usp.br on Thu, Oct 26, 2000 at 01:52:45PM -0200
Hi,
On Thu, Oct 26, 2000 at 01:52:45PM -0200, Rodrigo S. de Castro wrote:
>
> I am working on a compressed cache for 2.2.16 and I am
> currently in a cache with no compression implementation. Well, at this
> step, I gotta a doubt of how can I mark the pages (actually, ptes)
> that are in my cache and neither present in memory nor in swap. This
> is essential when I have a page fault, and this page is not present in
> memory.
Reserve a SWP_ENTRY for compressed pages. There's precedent for that:
SHM in 2.2 already uses that mechanism for swapped-out shared memory
pages.
--Stephen
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next prev parent reply other threads:[~2000-10-26 15:58 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-10-26 15:52 ptes flags in compressed cache Rodrigo S. de Castro
2000-10-26 15:58 ` Stephen C. Tweedie [this message]
2000-10-27 2:12 ` page fault M.Jagadish Kumar
2000-10-26 19:45 ` afei
2000-10-26 19:53 ` Rik van Riel
2000-10-27 2:14 ` afei
2000-10-27 11:17 ` Stephen C. Tweedie
[not found] ` <8tboe4$3bfb7$1@fido.engr.sgi.com>
2000-10-27 17:38 ` Rajagopal Ananthanarayanan
2000-10-30 12:19 ` volodya
2000-10-27 7:59 ` ptes flags in compressed cache Christoph Rohland
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