Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759939Ab0FKJWY (ORCPT ); Fri, 11 Jun 2010 05:22:24 -0400 Received: from fgwmail7.fujitsu.co.jp ([192.51.44.37]:39351 "EHLO fgwmail7.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757849Ab0FKJWW (ORCPT ); Fri, 11 Jun 2010 05:22:22 -0400 X-SecurityPolicyCheck-FJ: OK by FujitsuOutboundMailChecker v1.3.1 Message-ID: <4C12002C.5030400@jp.fujitsu.com> Date: Fri, 11 Jun 2010 18:21:48 +0900 From: Kenji Kaneshige User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; ja; rv:1.9.1.9) Gecko/20100317 Thunderbird/3.0.4 MIME-Version: 1.0 To: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , linux-kernel@vger.kernel.org CC: linux-pci@vger.kernel.org, jbarnes@virtuousgeek.org Subject: [PATCH 4/4] x86: ioremap: fix normal ram range check References: <4C11FF10.4060203@jp.fujitsu.com> In-Reply-To: <4C11FF10.4060203@jp.fujitsu.com> Content-Type: text/plain; charset=ISO-2022-JP Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1147 Lines: 29 Check for norma RAM in x86 ioremap() code seems to not work for the last page frame in the specified physical address range. Signed-off-by: Kenji Kaneshige --- arch/x86/mm/ioremap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux-2.6.34/arch/x86/mm/ioremap.c =================================================================== --- linux-2.6.34.orig/arch/x86/mm/ioremap.c 2010-06-10 07:28:33.146375380 +0900 +++ linux-2.6.34/arch/x86/mm/ioremap.c 2010-06-10 07:32:59.211196516 +0900 @@ -100,7 +100,7 @@ * Don't allow anybody to remap normal RAM that we're using.. */ last_pfn = last_addr >> PAGE_SHIFT; - for (pfn = phys_addr >> PAGE_SHIFT; pfn < last_pfn; pfn++) { + for (pfn = phys_addr >> PAGE_SHIFT; pfn <= last_pfn; pfn++) { int is_ram = page_is_ram(pfn); if (is_ram && pfn_valid(pfn) && !PageReserved(pfn_to_page(pfn))) -- 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/