Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757870Ab0FRDYt (ORCPT ); Thu, 17 Jun 2010 23:24:49 -0400 Received: from fgwmail7.fujitsu.co.jp ([192.51.44.37]:35430 "EHLO fgwmail7.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757183Ab0FRDYr (ORCPT ); Thu, 17 Jun 2010 23:24:47 -0400 X-SecurityPolicyCheck-FJ: OK by FujitsuOutboundMailChecker v1.3.1 Message-ID: <4C1AE6CD.1080704@jp.fujitsu.com> Date: Fri, 18 Jun 2010 12:23:57 +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: hpa@zytor.com, tglx@linutronix.de, mingo@redhat.com, linux-kernel@vger.kernel.org CC: matthew@wil.cx, macro@linux-mips.org, kamezawa.hiroyu@jp.fujitsu.com, eike-kernel@sf-tec.de, jeremy@goop.org, linux-pci@vger.kernel.org Subject: [PATCH 2/2] x86: ioremap: fix normal ram range check References: <4C1AE64C.6040609@jp.fujitsu.com> In-Reply-To: <4C1AE64C.6040609@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: 1115 Lines: 28 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 +++ linux-2.6.34/arch/x86/mm/ioremap.c @@ -101,7 +101,7 @@ static void __iomem *__ioremap_caller(re * 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/