From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932775AbVITRXe (ORCPT ); Tue, 20 Sep 2005 13:23:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932771AbVITRXQ (ORCPT ); Tue, 20 Sep 2005 13:23:16 -0400 Received: from e33.co.us.ibm.com ([32.97.110.151]:58272 "EHLO e33.co.us.ibm.com") by vger.kernel.org with ESMTP id S932769AbVITRXN (ORCPT ); Tue, 20 Sep 2005 13:23:13 -0400 Subject: [RFC][PATCH 3/4] build_zonelists() unification: don't re-zero zonelist To: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, Dave Hansen From: Dave Hansen Date: Tue, 20 Sep 2005 10:23:11 -0700 References: <20050920172303.8CD9190C@kernel.beaverton.ibm.com> In-Reply-To: <20050920172303.8CD9190C@kernel.beaverton.ibm.com> Message-Id: <20050920172311.12E6FE03@kernel.beaverton.ibm.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org The pgdats, and thus the zonelists are either statically allocated in BSS, cleared by the bootmem allocator, or cleared by arch code such as remapped_pgdat_init(). There is no need to re-zero them here Signed-off-by: Dave Hansen --- memhotplug-dave/mm/page_alloc.c | 6 ------ 1 files changed, 6 deletions(-) diff -puN mm/page_alloc.c~B1.2-build_zonelists_unification mm/page_alloc.c --- memhotplug/mm/page_alloc.c~B1.2-build_zonelists_unification 2005-09-14 09:32:38.000000000 -0700 +++ memhotplug-dave/mm/page_alloc.c 2005-09-14 09:32:38.000000000 -0700 @@ -1549,12 +1549,6 @@ static void __init build_zonelists(pg_da struct zonelist *zonelist; nodemask_t used_mask; - /* initialize zonelists */ - for (i = 0; i < GFP_ZONETYPES; i++) { - zonelist = pgdat->node_zonelists + i; - zonelist->zones[0] = NULL; - } - /* NUMA-aware ordering of nodes */ local_node = pgdat->node_id; load = num_online_nodes(); _