From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E13D2C32789 for ; Tue, 6 Nov 2018 15:16:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B1E5620862 for ; Tue, 6 Nov 2018 15:16:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B1E5620862 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388091AbeKGAlv (ORCPT ); Tue, 6 Nov 2018 19:41:51 -0500 Received: from mga01.intel.com ([192.55.52.88]:34270 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729574AbeKGAlu (ORCPT ); Tue, 6 Nov 2018 19:41:50 -0500 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 06 Nov 2018 07:16:09 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,472,1534834800"; d="scan'208";a="84388452" Received: from unknown (HELO localhost.localdomain) ([10.232.112.69]) by fmsmga008.fm.intel.com with ESMTP; 06 Nov 2018 07:16:09 -0800 Date: Tue, 6 Nov 2018 08:14:02 -0700 From: Keith Busch To: Ming Lei Cc: Johannes Thumshirn , Ming Lei , Jens Axboe , linux-block , Hannes Reinecke , Linux Kernel Mailing List , Jan Kara , Sagi Grimberg Subject: Re: [PATCH] block: respect virtual boundary mask in bvecs Message-ID: <20181106151402.GA6020@localhost.localdomain> References: <20181105102301.9752-1-jthumshirn@suse.de> <20181105105548.GC12367@ming.t460p> <7c649b43-f952-cf94-93d6-44fb153acced@suse.de> <20181105120153.GD12367@ming.t460p> <3c3dd9c2-4240-7bb5-c0ff-af6f2e479c31@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.1 (2017-09-22) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Nov 06, 2018 at 10:56:52PM +0800, Ming Lei wrote: > > This patch makes sense on >4KB PAGE_SIZE. Granted existing blk_queue_virt_boundary() users all appear to be at least 4k, the block API doesn't enforce that. Some unlikely device may require an even smaller alignment in the future, which would benefit from this patch. But yes, the changelog description is a bit confusing to me if the sighting came from a 4K arch.