From: Rik van Riel <riel@conectiva.com.br>
To: William Lee Irwin III <wli@holomorphy.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: noninterfering drop_page()
Date: Thu, 23 May 2002 06:36:54 -0300 (BRT) [thread overview]
Message-ID: <Pine.LNX.4.44L.0205230633470.23276-100000@imladris.surriel.com> (raw)
In-Reply-To: <20020522051102.GN2046@holomorphy.com>
On Tue, 21 May 2002, William Lee Irwin III wrote:
> Brewed this up a while ago as part of the rmap_locking project, though
> the forward port itself hasn't gone through much more than a test boot.
> # 02/05/21 wli@tisifone.holomorphy.com 1.424
> # Noninterfering drop_page(). Doesn't grab at the global lock, but rather sets a per-page flag
> # signalling to VM scanning that the page should be aggressively reclaimed.
This means we would reclaim normal inactive pages before
looking at the "dropped" pages that still linger on the
active list.
I'm not sure what this patch achieves except for disabling
drop-behind (you'll end up reclaiming non-mapped pagecache
pages in something resembling FIFO order).
regards,
Rik
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next prev parent reply other threads:[~2002-05-23 9:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-22 5:11 William Lee Irwin III
2002-05-23 9:36 ` Rik van Riel [this message]
2002-05-23 15:43 ` William Lee Irwin III
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