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[209.132.180.67]) by mx.google.com with ESMTP id d18si669567pgm.212.2018.11.28.19.32.09; Wed, 28 Nov 2018 19:32:24 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727610AbeK2OfM (ORCPT + 99 others); Thu, 29 Nov 2018 09:35:12 -0500 Received: from mx1.redhat.com ([209.132.183.28]:44458 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727120AbeK2OfM (ORCPT ); Thu, 29 Nov 2018 09:35:12 -0500 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 2AACD307DAC1; Thu, 29 Nov 2018 03:31:19 +0000 (UTC) Received: from ming.t460p (ovpn-8-23.pek2.redhat.com [10.72.8.23]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 48CA94531; Thu, 29 Nov 2018 03:30:51 +0000 (UTC) Date: Thu, 29 Nov 2018 11:30:47 +0800 From: Ming Lei To: Jens Axboe Cc: Mike Snitzer , "Ewan D. Milne" , linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Theodore Ts'o , Omar Sandoval , Sagi Grimberg , Dave Chinner , Kent Overstreet , dm-devel@redhat.com, Alexander Viro , linux-fsdevel@vger.kernel.org, Shaohua Li , linux-raid@vger.kernel.org, David Sterba , linux-btrfs@vger.kernel.org, "Darrick J . Wong" , linux-xfs@vger.kernel.org, Gao Xiang , Christoph Hellwig , linux-ext4@vger.kernel.org, Coly Li , linux-bcache@vger.kernel.org, Boaz Harrosh , Bob Peterson , cluster-devel@redhat.com Subject: Re: [PATCH V12 00/20] block: support multi-page bvec Message-ID: <20181129033046.GE23390@ming.t460p> References: <20181126021720.19471-1-ming.lei@redhat.com> <7096bc4e-0617-29d0-a90d-ae7caf09a16d@kernel.dk> <20181129012959.GC23249@ming.t460p> <1983a2f5-07be-4102-fedc-54e2ad2e16dc@kernel.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1983a2f5-07be-4102-fedc-54e2ad2e16dc@kernel.dk> User-Agent: Mutt/1.9.1 (2017-09-22) X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.42]); Thu, 29 Nov 2018 03:31:19 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Nov 28, 2018 at 07:20:51PM -0700, Jens Axboe wrote: > On 11/28/18 6:30 PM, Ming Lei wrote: > >> I'm going back and forth on those one a bit. Any concerns with > >> pushing this to 4.22? > > > > My only one concern is about the warning of > > "blk_cloned_rq_check_limits: over max segments limit" on dm multipath, > > and seems Ewan and Mike is waiting for this fix. > > Not familiar with this issue, can you post a link to it? I'd be fine > working around anything until 4.22, it's not going to be a new issue. https://marc.info/?t=153303425700002&r=1&w=2 thanks, Ming