Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753484Ab3EZNlj (ORCPT ); Sun, 26 May 2013 09:41:39 -0400 Received: from mail-pd0-f177.google.com ([209.85.192.177]:37016 "EHLO mail-pd0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753314Ab3EZNlg (ORCPT ); Sun, 26 May 2013 09:41:36 -0400 From: Jiang Liu To: Andrew Morton Cc: Jiang Liu , David Rientjes , 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, Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , x86@kernel.org, Yinghai Lu , Tang Chen Subject: [PATCH v8, part3 04/14] mm/x86: use free_reserved_area() to simplify code Date: Sun, 26 May 2013 21:38:32 +0800 Message-Id: <1369575522-26405-5-git-send-email-jiang.liu@huawei.com> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1369575522-26405-1-git-send-email-jiang.liu@huawei.com> References: <1369575522-26405-1-git-send-email-jiang.liu@huawei.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3125 Lines: 94 Use common help function free_reserved_area() to simplify code. Signed-off-by: Jiang Liu Cc: Thomas Gleixner Cc: Ingo Molnar Cc: "H. Peter Anvin" Cc: x86@kernel.org Cc: Yinghai Lu Cc: Tang Chen Cc: Wen Congyang Cc: Jianguo Wu Cc: linux-kernel@vger.kernel.org --- arch/x86/mm/init.c | 14 +++----------- arch/x86/mm/init_64.c | 5 ++--- 2 files changed, 5 insertions(+), 14 deletions(-) diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index eaac174..62f1473 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -494,7 +494,6 @@ int devmem_is_allowed(unsigned long pagenr) void free_init_pages(char *what, unsigned long begin, unsigned long end) { - unsigned long addr; unsigned long begin_aligned, end_aligned; /* Make sure boundaries are page aligned */ @@ -509,8 +508,6 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end) if (begin >= end) return; - addr = begin; - /* * If debugging page accesses then do not free this memory but * mark them not present - any buggy init-section access will @@ -529,18 +526,13 @@ void free_init_pages(char *what, unsigned long begin, unsigned long end) set_memory_nx(begin, (end - begin) >> PAGE_SHIFT); set_memory_rw(begin, (end - begin) >> PAGE_SHIFT); - printk(KERN_INFO "Freeing %s: %luk freed\n", what, (end - begin) >> 10); - - for (; addr < end; addr += PAGE_SIZE) { - memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE); - free_reserved_page(virt_to_page(addr)); - } + free_reserved_area((void *)begin, (void *)end, POISON_FREE_INITMEM, what); #endif } void free_initmem(void) { - free_init_pages("unused kernel memory", + free_init_pages("unused kernel", (unsigned long)(&__init_begin), (unsigned long)(&__init_end)); } @@ -566,7 +558,7 @@ void __init free_initrd_mem(unsigned long start, unsigned long end) * - relocate_initrd() * So here We can do PAGE_ALIGN() safely to get partial page to be freed */ - free_init_pages("initrd memory", start, PAGE_ALIGN(end)); + free_init_pages("initrd", start, PAGE_ALIGN(end)); } #endif diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index bb00c46..32e2f25 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -1166,11 +1166,10 @@ void mark_rodata_ro(void) set_memory_ro(start, (end-start) >> PAGE_SHIFT); #endif - free_init_pages("unused kernel memory", + free_init_pages("unused kernel", (unsigned long) __va(__pa_symbol(text_end)), (unsigned long) __va(__pa_symbol(rodata_start))); - - free_init_pages("unused kernel memory", + free_init_pages("unused kernel", (unsigned long) __va(__pa_symbol(rodata_end)), (unsigned long) __va(__pa_symbol(_sdata))); } -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/