From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bartlomiej Zolnierkiewicz Subject: Re: Some IDE issues with 2.6.28 on PC-Engines ALIX2 Date: Mon, 5 Jan 2009 18:15:24 +0100 Message-ID: <200901051815.24847.bzolnier@gmail.com> References: <49615667.9020408@iwl.com> <200901051736.18026.bzolnier@gmail.com> <20090105165238.616e5186@lxorguk.ukuu.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-bw0-f21.google.com ([209.85.218.21]:58815 "EHLO mail-bw0-f21.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751532AbZAERO7 (ORCPT ); Mon, 5 Jan 2009 12:14:59 -0500 Received: by bwz14 with SMTP id 14so22890145bwz.13 for ; Mon, 05 Jan 2009 09:14:56 -0800 (PST) In-Reply-To: <20090105165238.616e5186@lxorguk.ukuu.org.uk> Content-Disposition: inline Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Alan Cox Cc: Sergei Shtylyov , Karl Auerbach , linux-ide@vger.kernel.org, karl@cavebear.com, "Martin K. Petersen" On Monday 05 January 2009, Alan Cox wrote: > > * CS5536 is used mostly for driving CF cards and this allows use of > > IDE features which are unavailable under libata (32-bit I/O support, > > non-rotational media optimizations, etc). > > Non rotational media handling is done by the block layer and so works for > everything. Just set the right queue according to the device policy you > want in hal/udev. You seem to confuse no merges policy with non rotational media support. Both are done by block layer. The former is controlled by the user-space while the latter is controlled by the block driver. Thanks, Bart