From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754314AbYABXYE (ORCPT ); Wed, 2 Jan 2008 18:24:04 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756741AbYABXWZ (ORCPT ); Wed, 2 Jan 2008 18:22:25 -0500 Received: from mx1.redhat.com ([66.187.233.31]:49865 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754905AbYABXWQ (ORCPT ); Wed, 2 Jan 2008 18:22:16 -0500 Message-Id: <20080102224154.499729234@redhat.com> References: <20080102224144.885671949@redhat.com> User-Agent: quilt/0.46-1 Date: Wed, 02 Jan 2008 17:41:53 -0500 From: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, lee.schermerhorn@hp.com Subject: [patch 09/19] add newly swapped in pages to the inactive list Content-Disposition: inline; filename=rvr-swapin-inactive.patch To: unlisted-recipients:; (no To-header on input) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Swapin_readahead can read in a lot of data that the processes in memory never need. Adding swap cache pages to the inactive list prevents them from putting too much pressure on the working set. This has the potential to help the programs that are already in memory, but it could also be a disadvantage to processes that are trying to get swapped in. In short, this patch needs testing. Signed-off-by: Rik van Riel Index: linux-2.6.24-rc6-mm1/mm/swap_state.c =================================================================== --- linux-2.6.24-rc6-mm1.orig/mm/swap_state.c 2008-01-02 12:37:38.000000000 -0500 +++ linux-2.6.24-rc6-mm1/mm/swap_state.c 2008-01-02 12:37:52.000000000 -0500 @@ -300,7 +300,7 @@ struct page *read_swap_cache_async(swp_e /* * Initiate read into locked page and return. */ - lru_cache_add_active_anon(new_page); + lru_cache_add_anon(new_page); swap_readpage(NULL, new_page); return new_page; } -- All Rights Reversed