From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756332AbZCKOfk (ORCPT ); Wed, 11 Mar 2009 10:35:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755719AbZCKOfS (ORCPT ); Wed, 11 Mar 2009 10:35:18 -0400 Received: from ti-out-0910.google.com ([209.85.142.191]:38374 "EHLO ti-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755731AbZCKOfQ (ORCPT ); Wed, 11 Mar 2009 10:35:16 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; b=YH1KJIfkkCSeCJIphw5ztMcrGSWLEPeVOXVEmPZrvmkUZKSqyKTsAoalJq+NbXx6IP iDuAtl5Qa/gc8oMT+Mq6TNW8ioFd1vW7T/zgv3sas4oHq501ceEbpaR8kktkQgttKDdv 7wszruh4MAkZMCNNqKHtH6z+FiV3/JXB0WMjM= Date: Wed, 11 Mar 2009 23:34:50 +0900 From: Akinobu Mita To: linux-kernel@vger.kernel.org Cc: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , x86@kernel.org Subject: [PATCH 2/2] x86: debug check for kmap_atomic_pfn and iomap_atomic_prot_pfn() Message-ID: <20090311143449.GB22244@localhost.localdomain> References: <20090311143317.GA22244@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-2022-jp Content-Disposition: inline In-Reply-To: <20090311143317.GA22244@localhost.localdomain> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org It may be useful for kmap_atomic_pfn() and iomap_atomic_prot_pfn() to check invalid kmap usage as well as kmap_atomic. Signed-off-by: Akinobu Mita Cc: Thomas Gleixner Cc: Ingo Molnar Cc: "H. Peter Anvin" Cc: --- arch/x86/mm/highmem_32.c | 2 ++ 1 file changed, 2 insertions(+) Index: 2.6-mmotm/arch/x86/mm/highmem_32.c =================================================================== --- 2.6-mmotm.orig/arch/x86/mm/highmem_32.c +++ 2.6-mmotm/arch/x86/mm/highmem_32.c @@ -128,6 +128,8 @@ void *kmap_atomic_prot_pfn(unsigned long pagefault_disable(); + debug_kmap_atomic_prot(type); + idx = type + KM_TYPE_NR * smp_processor_id(); vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); set_pte(kmap_pte - idx, pfn_pte(pfn, prot));