From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965808Ab3HHPKE (ORCPT ); Thu, 8 Aug 2013 11:10:04 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:48680 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965740Ab3HHPKC (ORCPT ); Thu, 8 Aug 2013 11:10:02 -0400 Date: Thu, 8 Aug 2013 08:09:54 -0700 From: Christoph Hellwig To: Kent Overstreet Cc: axboe@kernel.dk, neilb@suse.de, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, dm-devel@redhat.com, linux-raid@vger.kernel.org Subject: Re: [PATCH 0/22] Immutable biovecs, block layer changes Message-ID: <20130808150954.GA30092@infradead.org> References: <1375912471-5106-1-git-send-email-kmo@daterainc.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1375912471-5106-1-git-send-email-kmo@daterainc.com> User-Agent: Mutt/1.5.21 (2010-09-15) 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 On Wed, Aug 07, 2013 at 02:54:09PM -0700, Kent Overstreet wrote: > _However_, I have more patches (that depend on this patch series) to get > that back - segment merging improvements that get rid of > bi_seg_front_size, bi_seg_back_size, and bi_phys_segments. Once all that > is in it should be a net reduction to the size of struct bio. What is preventing you from sending those out as well? While it's not absolutely nessecary it would certainly be good if we'd avoid a struct bio size regression.