Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752293AbdHJLOt (ORCPT ); Thu, 10 Aug 2017 07:14:49 -0400 Received: from bombadil.infradead.org ([65.50.211.133]:45583 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750841AbdHJLOr (ORCPT ); Thu, 10 Aug 2017 07:14:47 -0400 Date: Thu, 10 Aug 2017 04:14:43 -0700 From: Christoph Hellwig To: Ming Lei Cc: Jens Axboe , Christoph Hellwig , Huang Ying , Andrew Morton , Alexander Viro , linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH v3 04/49] mm: page_io.c: comment on direct access to bvec table Message-ID: <20170810111443.GB20308@infradead.org> References: <20170808084548.18963-1-ming.lei@redhat.com> <20170808084548.18963-5-ming.lei@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170808084548.18963-5-ming.lei@redhat.com> User-Agent: Mutt/1.8.3 (2017-05-23) 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: 85 Lines: 2 Can we just add a bio_first_page macro that always return the first page in the bio?