From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk1-f197.google.com (mail-qk1-f197.google.com [209.85.222.197]) by kanga.kvack.org (Postfix) with ESMTP id 8C3DA6B1967 for ; Mon, 19 Nov 2018 02:52:23 -0500 (EST) Received: by mail-qk1-f197.google.com with SMTP id y83so66835193qka.7 for ; Sun, 18 Nov 2018 23:52:23 -0800 (PST) Received: from mx1.redhat.com (mx1.redhat.com. [209.132.183.28]) by mx.google.com with ESMTPS id s24si906489qta.136.2018.11.18.23.52.22 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 18 Nov 2018 23:52:23 -0800 (PST) Date: Mon, 19 Nov 2018 15:51:55 +0800 From: Ming Lei Subject: Re: [PATCH V10 04/19] block: use bio_for_each_bvec() to map sg Message-ID: <20181119075154.GB16519@ming.t460p> References: <20181115085306.9910-1-ming.lei@redhat.com> <20181115085306.9910-5-ming.lei@redhat.com> <20181116133314.GC3165@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181116133314.GC3165@lst.de> Sender: owner-linux-mm@kvack.org List-ID: To: Christoph Hellwig Cc: Jens Axboe , linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Dave Chinner , Kent Overstreet , Mike Snitzer , dm-devel@redhat.com, Alexander Viro , linux-fsdevel@vger.kernel.org, Shaohua Li , linux-raid@vger.kernel.org, linux-erofs@lists.ozlabs.org, David Sterba , linux-btrfs@vger.kernel.org, "Darrick J . Wong" , linux-xfs@vger.kernel.org, Gao Xiang , Theodore Ts'o , linux-ext4@vger.kernel.org, Coly Li , linux-bcache@vger.kernel.org, Boaz Harrosh , Bob Peterson , cluster-devel@redhat.com On Fri, Nov 16, 2018 at 02:33:14PM +0100, Christoph Hellwig wrote: > > + if (!*sg) > > + return sglist; > > + else { > > No need for an else after an early return. OK, good catch! Thanks, Ming