From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755002AbZCKQzr (ORCPT ); Wed, 11 Mar 2009 12:55:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754351AbZCKQzS (ORCPT ); Wed, 11 Mar 2009 12:55:18 -0400 Received: from hera.kernel.org ([140.211.167.34]:44878 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751829AbZCKQzP (ORCPT ); Wed, 11 Mar 2009 12:55:15 -0400 Date: Wed, 11 Mar 2009 16:54:35 GMT From: Akinobu Mita To: linux-tip-commits@vger.kernel.org Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@redhat.com, akinobu.mita@gmail.com, tglx@linutronix.de, mingo@elte.hu Reply-To: mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org, tglx@linutronix.de, akinobu.mita@gmail.com, mingo@elte.hu In-Reply-To: <20090311143449.GB22244@localhost.localdomain> References: <20090311143449.GB22244@localhost.localdomain> Subject: [tip:x86/mm] x86: debug check for kmap_atomic_pfn and iomap_atomic_prot_pfn() Message-ID: Git-Commit-ID: 12074fa1073013dd11f1cff41db018d5cff4ecd9 X-Mailer: tip-git-log-daemon MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.0 (hera.kernel.org [127.0.0.1]); Wed, 11 Mar 2009 16:54:37 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 12074fa1073013dd11f1cff41db018d5cff4ecd9 Gitweb: http://git.kernel.org/tip/12074fa1073013dd11f1cff41db018d5cff4ecd9 Author: "Akinobu Mita" AuthorDate: Wed, 11 Mar 2009 23:34:50 +0900 Commit: Ingo Molnar CommitDate: Wed, 11 Mar 2009 15:47:46 +0100 x86: debug check for kmap_atomic_pfn and iomap_atomic_prot_pfn() 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 LKML-Reference: <20090311143449.GB22244@localhost.localdomain> Signed-off-by: Ingo Molnar --- arch/x86/mm/highmem_32.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c index ae4c8da..f256e73 100644 --- a/arch/x86/mm/highmem_32.c +++ b/arch/x86/mm/highmem_32.c @@ -128,6 +128,8 @@ void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot) 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));