Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759150Ab0FQBb4 (ORCPT ); Wed, 16 Jun 2010 21:31:56 -0400 Received: from fgwmail6.fujitsu.co.jp ([192.51.44.36]:33405 "EHLO fgwmail6.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755648Ab0FQBby (ORCPT ); Wed, 16 Jun 2010 21:31:54 -0400 X-SecurityPolicyCheck-FJ: OK by FujitsuOutboundMailChecker v1.3.1 Message-ID: <4C197ADF.90509@jp.fujitsu.com> Date: Thu, 17 Jun 2010 10:31:11 +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: tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org CC: linux-pci@vger.kernel.org, macro@linux-mips.org, kamezawa.hiroyu@jp.fujitsu.com, eike-kernel@sf-tec.de Subject: [PATCH 2/2] x86: ioremap: fix normal ram range check References: <4C197A49.6020400@jp.fujitsu.com> In-Reply-To: <4C197A49.6020400@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 2010-06-15 05:33:06.272381451 +0900 +++ linux-2.6.34/arch/x86/mm/ioremap.c 2010-06-15 05:33:21.086585690 +0900 @@ -101,7 +101,7 @@ * 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/