From patchwork Tue Mar 26 15:54:46 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiang Liu X-Patchwork-Id: 2339591 Return-Path: X-Original-To: patchwork-linux-parisc@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork1.kernel.org (Postfix) with ESMTP id 72FCE400E6 for ; Tue, 26 Mar 2013 16:02:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965124Ab3CZQBo (ORCPT ); Tue, 26 Mar 2013 12:01:44 -0400 Received: from mail-da0-f52.google.com ([209.85.210.52]:33737 "EHLO mail-da0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964912Ab3CZQBm (ORCPT ); Tue, 26 Mar 2013 12:01:42 -0400 Received: by mail-da0-f52.google.com with SMTP id f10so3740010dak.11 for ; Tue, 26 Mar 2013 09:01:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:from:to:cc:subject:date:message-id:x-mailer:in-reply-to :references; bh=4Qo0qjLatvDotSEo7lVrK9jN+i7AnQh9CCEScS+HiO4=; b=IfYIlmd58mPB8e0myczg0b6RI79p/cufnvNVdocRvpDvHaAHm3FOrYonw8K8ZmzMK7 fkEe/noPpUyHtE2EuV3IYEXmB1L+x24H1GYWkOJTK//zD8BMx+FiLFvbDHzwjv37anx6 nJXdGmPpeVdjE4l5MZdBE71tbR0k0XUyJ0GqQzv9onSkNHFHK7IMyiKtFLUHcfPldqsz 9LDfFWnv09Ua02+UpYJRq46Loz3rjafyehbkDRdMRkOV4tBykXiZ7buQHEY53Rwep9QC cJcPn+l/mgfjecPjeR4fui9sFUPvxsqO9mt7H+ueNT1QrOgdQ9+FJ/oeh/24f+G9ccYw Aexw== X-Received: by 10.68.143.167 with SMTP id sf7mr23874650pbb.21.1364313701145; Tue, 26 Mar 2013 09:01:41 -0700 (PDT) Received: from localhost.localdomain ([114.246.172.130]) by mx.google.com with ESMTPS id bs1sm7150356pbc.8.2013.03.26.09.01.26 (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 26 Mar 2013 09:01:40 -0700 (PDT) From: Jiang Liu To: Andrew Morton , David Rientjes Cc: Jiang Liu , Wen Congyang , Mel Gorman , Minchan Kim , KAMEZAWA Hiroyuki , Michal Hocko , James Bottomley , Sergei Shtylyov , David Howells , Mark Salter , Jianguo Wu , linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, "James E.J. Bottomley" , Helge Deller , Thomas Gleixner , linux-parisc@vger.kernel.org Subject: [PATCH v3, part4 27/39] mm/PARISC: prepare for removing num_physpages and simplify mem_init() Date: Tue, 26 Mar 2013 23:54:46 +0800 Message-Id: <1364313298-17336-28-git-send-email-jiang.liu@huawei.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1364313298-17336-1-git-send-email-jiang.liu@huawei.com> References: <1364313298-17336-1-git-send-email-jiang.liu@huawei.com> Sender: linux-parisc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org Prepare for removing num_physpages and simplify mem_init(). Signed-off-by: Jiang Liu Cc: "James E.J. Bottomley" Cc: Helge Deller Cc: Thomas Gleixner Cc: Michal Hocko Cc: David Rientjes Cc: linux-parisc@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- Hi all, Sorry for my mistake that my previous patch series has been screwed up. So I regenerate a third version and also set up a git tree at: git://github.com/jiangliu/linux.git mem_init Any help to review and test are welcomed! Regards! Gerry --- arch/parisc/mm/init.c | 46 +++------------------------------------------- 1 file changed, 3 insertions(+), 43 deletions(-) diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index 1fe9d841..f80c175 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -214,7 +214,6 @@ static void __init setup_bootmem(void) mem_limit_func(); /* check for "mem=" argument */ mem_max = 0; - num_physpages = 0; for (i = 0; i < npmem_ranges; i++) { unsigned long rsize; @@ -229,10 +228,8 @@ static void __init setup_bootmem(void) npmem_ranges = i + 1; mem_max = mem_limit; } - num_physpages += pmem_ranges[i].pages; break; } - num_physpages += pmem_ranges[i].pages; mem_max += rsize; } @@ -532,7 +529,7 @@ void free_initmem(void) * pages are no-longer executable */ flush_icache_range(init_begin, init_end); - num_physpages += free_initmem_default(-1); + free_initmem_default(-1); /* set up a new led state on systems shipped LED State panel */ pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BCOMPLETE); @@ -580,8 +577,6 @@ unsigned long pcxl_dma_start __read_mostly; void __init mem_init(void) { - int codesize, reservedpages, datasize, initsize; - /* Do sanity checks on page table constants */ BUILD_BUG_ON(PTE_ENTRY_SIZE != sizeof(pte_t)); BUILD_BUG_ON(PMD_ENTRY_SIZE != sizeof(pmd_t)); @@ -603,33 +598,6 @@ void __init mem_init(void) } #endif - codesize = (unsigned long)_etext - (unsigned long)_text; - datasize = (unsigned long)_edata - (unsigned long)_etext; - initsize = (unsigned long)__init_end - (unsigned long)__init_begin; - - reservedpages = 0; -{ - unsigned long pfn; -#ifdef CONFIG_DISCONTIGMEM - int i; - - for (i = 0; i < npmem_ranges; i++) { - for (pfn = node_start_pfn(i); pfn < node_end_pfn(i); pfn++) { - if (PageReserved(pfn_to_page(pfn))) - reservedpages++; - } - } -#else /* !CONFIG_DISCONTIGMEM */ - for (pfn = 0; pfn < max_pfn; pfn++) { - /* - * Only count reserved RAM pages - */ - if (PageReserved(pfn_to_page(pfn))) - reservedpages++; - } -#endif -} - #ifdef CONFIG_PA11 if (hppa_dma_ops == &pcxl_dma_ops) { pcxl_dma_start = (unsigned long)SET_MAP_OFFSET(MAP_START); @@ -643,15 +611,7 @@ void __init mem_init(void) parisc_vmalloc_start = SET_MAP_OFFSET(MAP_START); #endif - printk(KERN_INFO "Memory: %luk/%luk available (%dk kernel code, %dk reserved, %dk data, %dk init)\n", - nr_free_pages() << (PAGE_SHIFT-10), - num_physpages << (PAGE_SHIFT-10), - codesize >> 10, - reservedpages << (PAGE_SHIFT-10), - datasize >> 10, - initsize >> 10 - ); - + mem_init_print_info(NULL); #ifdef CONFIG_DEBUG_KERNEL /* double-sanity-check paranoia */ printk("virtual kernel memory layout:\n" " vmalloc : 0x%p - 0x%p (%4ld MB)\n" @@ -1099,6 +1059,6 @@ void flush_tlb_all(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - num_physpages += free_reserved_area(start, end, -1, "initrd"); + free_reserved_area(start, end, -1, "initrd"); } #endif