From mboxrd@z Thu Jan 1 00:00:00 1970 From: akpm@linux-foundation.org Subject: + mm-tile-prepare-for-removing-num_physpages-and-simplify-mem_init.patch added to -mm tree Date: Fri, 31 May 2013 13:33:00 -0700 Message-ID: <51a908fc.IdxnPMQ/YB1BD0Op%akpm@linux-foundation.org> Reply-To: linux-kernel@vger.kernel.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: Received: from mail.linuxfoundation.org ([140.211.169.12]:40395 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755913Ab3EaUdB (ORCPT ); Fri, 31 May 2013 16:33:01 -0400 Sender: mm-commits-owner@vger.kernel.org List-Id: mm-commits@vger.kernel.org To: mm-commits@vger.kernel.org, wency@cn.fujitsu.com, jiang.liu@huawei.com, davem@davemloft.net, cmetcalf@tilera.com, bhelgaas@google.com, liuj97@gmail.com Subject: + mm-tile-prepare-for-removing-num_physpages-and-simplify-mem_init.patch added to -mm tree To: liuj97@gmail.com,bhelgaas@google.com,cmetcalf@tilera.com,davem@davemloft.net,jiang.liu@huawei.com,wency@cn.fujitsu.com From: akpm@linux-foundation.org Date: Fri, 31 May 2013 13:33:00 -0700 The patch titled Subject: mm/tile: prepare for removing num_physpages and simplify mem_init() has been added to the -mm tree. Its filename is mm-tile-prepare-for-removing-num_physpages-and-simplify-mem_init.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Jiang Liu Subject: mm/tile: prepare for removing num_physpages and simplify mem_init() Prepare for removing num_physpages and simplify mem_init(). Signed-off-by: Jiang Liu Acked-by: Chris Metcalf Cc: Bjorn Helgaas Cc: "David S. Miller" Cc: Wen Congyang Signed-off-by: Andrew Morton --- arch/tile/kernel/setup.c | 16 ++++++++-------- arch/tile/mm/init.c | 15 +-------------- 2 files changed, 9 insertions(+), 22 deletions(-) diff -puN arch/tile/kernel/setup.c~mm-tile-prepare-for-removing-num_physpages-and-simplify-mem_init arch/tile/kernel/setup.c --- a/arch/tile/kernel/setup.c~mm-tile-prepare-for-removing-num_physpages-and-simplify-mem_init +++ a/arch/tile/kernel/setup.c @@ -329,6 +329,7 @@ static void __init setup_memory(void) #if defined(CONFIG_HIGHMEM) || defined(__tilegx__) long lowmem_pages; #endif + unsigned long physpages = 0; /* We are using a char to hold the cpu_2_node[] mapping */ BUILD_BUG_ON(MAX_NUMNODES > 127); @@ -388,8 +389,8 @@ static void __init setup_memory(void) continue; } } - if (num_physpages + PFN_DOWN(range.size) > maxmem_pfn) { - int max_size = maxmem_pfn - num_physpages; + if (physpages + PFN_DOWN(range.size) > maxmem_pfn) { + int max_size = maxmem_pfn - physpages; if (max_size > 0) { pr_err("Maxmem reduced node %d to %d pages\n", i, max_size); @@ -446,7 +447,7 @@ static void __init setup_memory(void) node_start_pfn[i] = start; node_end_pfn[i] = end; node_controller[i] = range.controller; - num_physpages += size; + physpages += size; max_pfn = end; /* Mark node as online */ @@ -465,7 +466,7 @@ static void __init setup_memory(void) * we're willing to use at 8 million pages (32GB of 4KB pages). */ cap = 8 * 1024 * 1024; /* 8 million pages */ - if (num_physpages > cap) { + if (physpages > cap) { int num_nodes = num_online_nodes(); int cap_each = cap / num_nodes; unsigned long dropped_pages = 0; @@ -476,10 +477,10 @@ static void __init setup_memory(void) node_end_pfn[i] = node_start_pfn[i] + cap_each; } } - num_physpages -= dropped_pages; + physpages -= dropped_pages; pr_warning("Only using %ldMB memory;" " ignoring %ldMB.\n", - num_physpages >> (20 - PAGE_SHIFT), + physpages >> (20 - PAGE_SHIFT), dropped_pages >> (20 - PAGE_SHIFT)); pr_warning("Consider using a larger page size.\n"); } @@ -497,7 +498,7 @@ static void __init setup_memory(void) lowmem_pages = (mappable_physpages > MAXMEM_PFN) ? MAXMEM_PFN : mappable_physpages; - highmem_pages = (long) (num_physpages - lowmem_pages); + highmem_pages = (long) (physpages - lowmem_pages); pr_notice("%ldMB HIGHMEM available.\n", pages_to_mb(highmem_pages > 0 ? highmem_pages : 0)); @@ -514,7 +515,6 @@ static void __init setup_memory(void) pr_warning("Use a HIGHMEM enabled kernel.\n"); max_low_pfn = MAXMEM_PFN; max_pfn = MAXMEM_PFN; - num_physpages = MAXMEM_PFN; node_end_pfn[0] = MAXMEM_PFN; } else { pr_notice("%ldMB memory available.\n", diff -puN arch/tile/mm/init.c~mm-tile-prepare-for-removing-num_physpages-and-simplify-mem_init arch/tile/mm/init.c --- a/arch/tile/mm/init.c~mm-tile-prepare-for-removing-num_physpages-and-simplify-mem_init +++ a/arch/tile/mm/init.c @@ -821,7 +821,6 @@ static void __init set_max_mapnr_init(vo void __init mem_init(void) { - int codesize, datasize, initsize; int i; #ifndef __tilegx__ void *last; @@ -853,19 +852,7 @@ void __init mem_init(void) set_non_bootmem_pages_init(); #endif - codesize = (unsigned long)&_etext - (unsigned long)&_text; - datasize = (unsigned long)&_end - (unsigned long)&_sdata; - initsize = (unsigned long)&_einittext - (unsigned long)&_sinittext; - initsize += (unsigned long)&_einitdata - (unsigned long)&_sinitdata; - - pr_info("Memory: %luk/%luk available (%dk kernel code, %dk data, %dk init, %ldk highmem)\n", - (unsigned long) nr_free_pages() << (PAGE_SHIFT-10), - num_physpages << (PAGE_SHIFT-10), - codesize >> 10, - datasize >> 10, - initsize >> 10, - (unsigned long) (totalhigh_pages << (PAGE_SHIFT-10)) - ); + mem_init_print_info(NULL); /* * In debug mode, dump some interesting memory mappings. _ Patches currently in -mm which might be from liuj97@gmail.com are linux-next.patch mm-change-signature-of-free_reserved_area-to-fix-building-warnings.patch mm-enhance-free_reserved_area-to-support-poisoning-memory-with-zero.patch mm-arm64-kill-poison_init_mem.patch mm-x86-use-free_reserved_area-to-simplify-code.patch mm-tile-use-common-help-functions-to-free-reserved-pages.patch mm-fix-some-trivial-typos-in-comments.patch mm-use-managed_pages-to-calculate-default-zonelist-order.patch mm-accurately-calculate-zone-managed_pages-for-highmem-zones.patch mm-use-a-dedicated-lock-to-protect-totalram_pages-and-zone-managed_pages.patch mm-make-__free_pages_bootmem-only-available-at-boot-time.patch mm-correctly-update-zone-managed_pages.patch mm-correctly-update-zone-managed_pages-fix.patch mm-concentrate-modification-of-totalram_pages-into-the-mm-core.patch mm-report-available-pages-as-memtotal-for-each-numa-node.patch vmlinuxlds-add-comments-for-global-variables-and-clean-up-useless-declarations.patch avr32-normalize-global-variables-exported-by-vmlinuxlds.patch c6x-normalize-global-variables-exported-by-vmlinuxlds.patch h8300-normalize-global-variables-exported-by-vmlinuxlds.patch score-normalize-global-variables-exported-by-vmlinuxlds.patch tile-normalize-global-variables-exported-by-vmlinuxlds.patch uml-normalize-global-variables-exported-by-vmlinuxlds.patch mm-introduce-helper-function-mem_init_print_info-to-simplify-mem_init.patch mm-use-totalram_pages-instead-of-num_physpages-at-runtime.patch mm-hotplug-prepare-for-removing-num_physpages.patch mm-alpha-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-arc-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-arm-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-arm64-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-avr32-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-blackfin-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-c6x-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-cris-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-frv-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-h8300-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-hexagon-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-ia64-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-m32r-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-m68k-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-metag-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-microblaze-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-mips-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-mn10300-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-openrisc-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-parisc-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-ppc-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-s390-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-score-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-sh-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-sparc-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-tile-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-um-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-unicore32-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-x86-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-xtensa-prepare-for-removing-num_physpages-and-simplify-mem_init.patch mm-kill-global-variable-num_physpages.patch