From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763033AbYEPSw1 (ORCPT ); Fri, 16 May 2008 14:52:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1761041AbYEPSsC (ORCPT ); Fri, 16 May 2008 14:48:02 -0400 Received: from mx1.redhat.com ([66.187.233.31]:46962 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760969AbYEPSr6 (ORCPT ); Fri, 16 May 2008 14:47:58 -0400 Message-Id: <20080516183224.560370213@redhat.com> References: <20080516183207.361608893@redhat.com> User-Agent: quilt/0.46-1 Date: Fri, 16 May 2008 14:32:16 -0400 From: Rik van Riel To: linux-kernel@vger.kernel.org Cc: Andrew Morton , Lee Schermerhorn , Kosaki Motohiro Subject: [patch 09/14] add newly swapped in pages to the inactive list Content-Disposition: inline; filename=rvr-swapin-inactive.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Rik van Riel 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-2.6.26-rc2-mm1/mm/swap_state.c =================================================================== --- linux-2.6.26-rc2-mm1.orig/mm/swap_state.c 2008-05-16 13:53:09.000000000 -0400 +++ linux-2.6.26-rc2-mm1/mm/swap_state.c 2008-05-16 14:05:02.000000000 -0400 @@ -301,7 +301,7 @@ 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