From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934650AbcIOMXJ (ORCPT ); Thu, 15 Sep 2016 08:23:09 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:56998 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932794AbcIOMXH (ORCPT ); Thu, 15 Sep 2016 08:23:07 -0400 Date: Thu, 15 Sep 2016 05:23:04 -0700 From: Christoph Hellwig To: Wouter Verhelst Cc: Christoph Hellwig , nbd-general@lists.sourceforge.net, linux-block@vger.kernel.org, Josef Bacik , linux-kernel@vger.kernel.org, mpa@pengutronix.de, kernel-team@fb.com Subject: Re: [Nbd] [RESEND][PATCH 0/5] nbd improvements Message-ID: <20160915122304.GA15501@infradead.org> References: <1473369130-22986-1-git-send-email-jbacik@fb.com> <20160909200203.phhvodsfs7ymukfp@grep.be> <20160915104935.ohuwgq2chsedz6fl@grep.be> <20160915113807.GA23259@infradead.org> <20160915115514.7hba23nqvvwfhb5z@grep.be> <20160915120125.GA31044@infradead.org> <20160915122120.4h3ykbewaavjk5nx@grep.be> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160915122120.4h3ykbewaavjk5nx@grep.be> User-Agent: Mutt/1.6.1 (2016-04-27) 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 On Thu, Sep 15, 2016 at 02:21:20PM +0200, Wouter Verhelst wrote: > Right. So do I understand you correctly that blk-mq currently doesn't > look at multiple queues, and just assumes that if a FLUSH is sent over > any one of the queues, it applies to all queues? Yes. The same is true at the protocol level for NVMe or SCSI transports that can make use of multiple queues.