From: Andrew Morton <akpm@zip.com.au>
To: Rik van Riel <riel@conectiva.com.br>
Cc: lkml <linux-kernel@vger.kernel.org>
Subject: Re: aa-200-active_page_swapout
Date: Wed, 20 Mar 2002 11:24:10 -0800 [thread overview]
Message-ID: <3C98E1DA.529F2BD7@zip.com.au> (raw)
In-Reply-To: <3C980A11.AD5A7660@zip.com.au> <Pine.LNX.4.44L.0203201048590.2181-100000@imladris.surriel.com>
Rik van Riel wrote:
>
> On Tue, 19 Mar 2002, Andrew Morton wrote:
>
> > Don't bother checking for active pages in the swapout path.
> >
> > Not sure about this one. Clearly the page isn't *likely* to be on the
> > active list, because the caller found it on the inactive list.
>
> Mmmm nope.
>
> The caller of swap_out (shrink_caches) may have been scanning the
> inactive list, but swap_out itself scans the page tables.
>
> This means it can encounter all kinds of pages, active, inactive
> and even reserved pages.
>
good point :)
So what does the patch do?
-
prev parent reply other threads:[~2002-03-20 19:26 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-03-20 4:03 aa-200-active_page_swapout Andrew Morton
2002-03-20 13:50 ` aa-200-active_page_swapout Rik van Riel
2002-03-20 19:24 ` Andrew Morton [this message]
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