From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: [PATCH 2/2] target: remove dead DF_* flags Date: Thu, 11 Nov 2010 07:21:59 -0500 Message-ID: <20101111122159.GA22413@infradead.org> References: <20101111104040.GA21472@infradead.org> <20101111104056.GB21472@infradead.org> <1289473630.2867.110.camel@haakon2.linux-iscsi.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from bombadil.infradead.org ([18.85.46.34]:38986 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756354Ab0KKMWA (ORCPT ); Thu, 11 Nov 2010 07:22:00 -0500 Content-Disposition: inline In-Reply-To: <1289473630.2867.110.camel@haakon2.linux-iscsi.org> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: "Nicholas A. Bellinger" Cc: Christoph Hellwig , linux-scsi@vger.kernel.org On Thu, Nov 11, 2010 at 03:07:10AM -0800, Nicholas A. Bellinger wrote: > This is still required by RAMDISK_DR to allow the backend to perform the > se_task->task_sg[] mapping from the ramdisk provided struct scatterlists > using se_subsystem_api->allocate_dma() It's not actually used anywhere at all. And if you mean fronted instead of backend above and imply not yet merged - I don't think adding special cases for the ramdisk driver into frontends is a good idea, as it's not really a case worth optimizing for. And even then it's entirely dead and untested code for now.