From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754198AbZHDEWZ (ORCPT ); Tue, 4 Aug 2009 00:22:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751609AbZHDEWY (ORCPT ); Tue, 4 Aug 2009 00:22:24 -0400 Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:38485 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1749667AbZHDEWX (ORCPT ); Tue, 4 Aug 2009 00:22:23 -0400 Date: Mon, 03 Aug 2009 21:22:32 -0700 (PDT) Message-Id: <20090803.212232.259171216.davem@davemloft.net> To: mingo@elte.hu Cc: joerg.roedel@amd.com, fujita.tomonori@lab.ntt.co.jp, reif@earthlink.net, sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org, x86@kernel.org, tony.luck@intel.com, akpm@linux-foundation.org Subject: Re: [PATCH v2 0/8] sparc: use asm-generic/dma-mapping-common.h and pci-dma-compat.h From: David Miller In-Reply-To: <20090803055608.GB19428@elte.hu> References: <20090721160538.GL25756@amd.com> <20090721.121519.239732131.davem@davemloft.net> <20090803055608.GB19428@elte.hu> X-Mailer: Mew version 6.2.51 on Emacs 22.1 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Ingo Molnar Date: Mon, 3 Aug 2009 07:56:08 +0200 > I'm wondering how sparc32 handles core_kernel_text() & friends? > > Those functions already assume that the bits between _stext and > _etext are all core kernel text and not generic pages freed back to > the buddy. They won't work for such pages obviously. Shows how many sparc32 users who trigger this case of actually freeing those pages and using such facilities there actually are :-)