From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: 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 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 In-Reply-To: Sender: linux-block-owner@vger.kernel.org List-Id: linux-block@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.