From:	 Rik van Riel <riel@conectiva.com.br>
To:	 Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: [PATCH] minor page aging update
Date:	 Mon, 24 Sep 2001 17:38:45 -0300 (BRST)
Cc:	 <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>

Hi Alan,

here is the promised minor page aging update to 2.4.9-ac15:

1) use min()/max() for age_page_{up,down}, now the
   thing is resistant to people changing PAGE_AGE_DECL ;)

2) in try_to_swap_out(), still adjust the page age even if
   the zone does have enough inactive pages ... this is a
   very cheap operation and will keep the page aging info
   in zones better up to date

3) only call do_try_to_free_pages() when we have a free
   shortage, this means kswapd() won't waste CPU time on
   working sets which fit in memory, but "spill over"
   into the inactive list ... also update comments a bit

4) remove run_task_queue(&tq_disk) from kswapd() since
   page_launder() will already have done this if needed

regards,

Rik
--
IA64: a worthy successor to the i860.

		http://www.surriel.com/
http://www.conectiva.com/	http://distro.conectiva.com/

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/