Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 3 Jan 2002 17:11:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 3 Jan 2002 17:11:12 -0500 Received: from colorfullife.com ([216.156.138.34]:33540 "EHLO colorfullife.com") by vger.kernel.org with ESMTP id ; Thu, 3 Jan 2002 17:11:02 -0500 Message-ID: <3C34D6FC.9090207@colorfullife.com> Date: Thu, 03 Jan 2002 23:11:08 +0100 From: Manfred Spraul User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.5) Gecko/20011012 X-Accept-Language: en-us MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: Who uses hdx=bswap or hdx=swapdata? Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Is the hdx=bswap or hdx=swapdata option actually in use? When is it needed? The current implementation can cause data corruptions on SMP with PIO transfers: It modifies the source buffer during disk writes, and these temporary modifications (within the irq handler) are visible with mmap on SMP. Is it possible to remove the option entirely, or should it be fixed? -- Manfred - 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/