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From: Daniel Phillips <phillips@bonn-fries.net>
To: Marcelo Tosatti <marcelo@conectiva.com.br>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
	Rik van Riel <riel@conectiva.com.br>,
	Andrew Morton <akpm@zip.com.au>,
	linux-kernel@vger.kernel.org, Ben LaHaise <bcrl@redhat.com>,
	Mike Galbraith <mikeg@wen-online.de>
Subject: Re: [RFC] Optimization for use-once pages
Date: Thu, 26 Jul 2001 14:17:58 +0200	[thread overview]
Message-ID: <0107261417580M.00907@starship> (raw)
In-Reply-To: <Pine.LNX.4.21.0107260736360.3707-100000@freak.distro.conectiva>
In-Reply-To: <Pine.LNX.4.21.0107260736360.3707-100000@freak.distro.conectiva>

On Thursday 26 July 2001 12:38, Marcelo Tosatti wrote:
> On Thu, 26 Jul 2001, Daniel Phillips wrote:
> > There does seem to be a dangling thread here though - when a
> > process page is unmapped and added to swap cache in try_to_swap_out
> > then later faulted back in, I don't see where we "rescue" the page
> > from the inactive queue.  Maybe I'm just not looking hard enough.
>
> do_swap_page()->lookup_swap_cache()->__find_page_nolock()->SetPageRef
>erenced().
>
> The referenced bit will make page_launder/reclaim_page move the page
> to the active list.

Yes.  And there I set ->age to a known state (START_AGE), so everything 
seems to be in order.

--
Daniel

  reply	other threads:[~2001-07-26 12:13 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <0107251802300B.00907@starship>
2001-07-25 16:41 ` [RFC] Optimization for use-once pages Rik van Riel
2001-07-25 17:46   ` Daniel Phillips
2001-07-26  8:36   ` Eric W. Biederman
2001-07-26 12:06     ` Daniel Phillips
2001-07-26 10:38       ` Marcelo Tosatti
2001-07-26 12:17         ` Daniel Phillips [this message]
2001-07-26  3:27 Ed Tomlinson
     [not found] <010301c11463$1ee00440$294b82ce@connecttech.com>
2001-07-24 17:07 ` Rik van Riel
2001-07-24 17:42   ` Stuart MacDonald
2001-07-24 17:51     ` Rik van Riel
2001-07-24 18:09       ` Stuart MacDonald
2001-07-24 18:15       ` Mike Castle
2001-07-24 18:21         ` Rik van Riel
2001-07-24 17:44   ` Mike Castle
2001-07-24 17:52     ` Rik van Riel
  -- strict thread matches above, loose matches on Subject: below --
2001-07-24  3:47 Daniel Phillips
2001-07-24 12:38 ` jlnance
2001-07-24 16:56   ` Rik van Riel
2001-07-25  0:04     ` Daniel Phillips
2001-07-25  0:43     ` Anton Altaparmakov
2001-07-25  1:30       ` Daniel Phillips
2001-07-25 21:18         ` Steve Lord
2001-07-24 16:48 ` Linus Torvalds
2001-07-24 17:04   ` Rik van Riel
2001-07-24 18:14     ` Daniel Phillips
2001-07-24 18:15       ` Rik van Riel
2001-07-24 20:24   ` Patrick Dreker
2001-07-24 20:32     ` Rik van Riel
2001-07-24 22:16       ` Patrick Dreker
2001-07-24 22:25         ` Rik van Riel
2001-07-25  0:27           ` Linus Torvalds
2001-07-25  8:20             ` Patrick Dreker
2001-07-25 12:57               ` Martin Devera
2001-07-25 14:16               ` Daniel Phillips
2001-07-24 20:33     ` Linus Torvalds
2001-07-25  1:25       ` Daniel Phillips
2001-07-25  0:18     ` Daniel Phillips
2001-07-24 20:27 ` Marcelo Tosatti
2001-07-24 22:05   ` Rik van Riel
2001-07-24 20:53     ` Marcelo Tosatti
2001-07-24 22:27       ` Rik van Riel
2001-07-24 23:09       ` Daniel Phillips
2001-07-24 19:35         ` Rob Landley
2001-07-25  6:10           ` Marcelo Tosatti
2001-07-25  8:32           ` Eric W. Biederman
2001-07-25 12:53             ` Daniel Phillips
2001-07-25 16:05               ` Eric W. Biederman
2001-07-25 12:57           ` Daniel Phillips
2001-07-25  5:12       ` Andrew Morton
2001-07-25  6:33         ` Marcelo Tosatti
2001-07-30 18:09         ` Marcelo Tosatti
2001-07-24 22:41     ` Daniel Phillips
2001-07-24 22:22   ` Daniel Phillips
2001-07-25  2:31 ` Marcelo Tosatti

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