From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: [PATCH v4] drivers/block/mtip32xx: Adding new driver mtip32xx Date: Mon, 12 Sep 2011 11:02:28 -0400 Message-ID: <20110912150228.GA5771@infradead.org> References: <22A973199D2C2F46933448F6E7990A3002C80026@ntxboimbx31.micron.com> <4E44E782.7090309@fusionio.com> <2A9BE4FF6209B644B6F8EB62DE6AEA1E07663ED4@ntxfrembx01.micron.com> <20110909085433.GA9593@infradead.org> <4E69D519.8070802@fusionio.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from 173-166-109-252-newengland.hfc.comcastbusiness.net ([173.166.109.252]:58109 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757275Ab1ILPCk (ORCPT ); Mon, 12 Sep 2011 11:02:40 -0400 Content-Disposition: inline In-Reply-To: <4E69D519.8070802@fusionio.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Jens Axboe Cc: Christoph Hellwig , "Sam Bradshaw (sbradshaw)" , "alan@lxorguk.ukuu.org.uk" , "linux-ide@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Jeff Garzik , "jmoyer@redhat.com" , "Asai Thambi Samymuthu Pattrayasamy (asamymuthupa) [CONTRACTOR]" On Fri, Sep 09, 2011 at 10:58:01AM +0200, Jens Axboe wrote: > > Documentation/block/writeback_cache_control.txt file is the canonical > > resource. Implementing your driver at the make_request layer > > unfortunately means you will have to do all the hard work yourself. > > - also the call to blk_queue_flush(queue, 0); from ->make_request for > > a non-data request is completely wrong. > > I noticed both of these flush/fua problems too and have fixed them up. I still can't find any fixes in your repository.