linux-kernel - [PATCH] free swap space of (re)activated pages

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Date:	Fri, 02 Mar 2007 15:31:19 -0500
From:	Rik van Riel <riel@...hat.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>
Subject: [PATCH] free swap space of (re)activated pages

Hi Andrew,

the attached patch frees the swap space of already resident pages
when swap space starts getting tight, instead of only freeing up
the swap space taken up by newly swapped in pages.

This should result in the swap space of pages that remain resident
in memory being freed, allowing kswapd more chances to actually swap
a page out (instead of rotating it back onto the active list).

Signed-off-by: Rik van Riel <riel@...hat.com>

-- 
Politics is the struggle between those who want to make their country
the best in the world, and those who believe it already is.  Each group
calls the other unpatriotic.

View attachment "linux-2.6-swapfree.patch" of type "text/x-patch" (2260 bytes)