Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1038716AbdDUL23 (ORCPT ); Fri, 21 Apr 2017 07:28:29 -0400 Received: from bombadil.infradead.org ([65.50.211.133]:43082 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1038700AbdDUL20 (ORCPT ); Fri, 21 Apr 2017 07:28:26 -0400 Date: Fri, 21 Apr 2017 04:28:25 -0700 From: Christoph Hellwig To: NeilBrown Cc: Jens Axboe , linux-block@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 04/11] block: Improvements to bounce-buffer handling Message-ID: <20170421112825.GD12523@infradead.org> References: <149266645258.27388.14083229348123176454.stgit@noble> <149266672902.27388.15322863417005890204.stgit@noble> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <149266672902.27388.15322863417005890204.stgit@noble> User-Agent: Mutt/1.8.0 (2017-02-23) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 224 Lines: 4 Do we want to doctor around the bio bouncing or leave it to the dma_ops like other subsystems do? These days dma_map_* is supposed to handle any memory we throw at it, even if that means using bounce buffers at that level.