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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0E095C04A68 for ; Thu, 28 Jul 2022 10:37:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234823AbiG1Kha (ORCPT ); Thu, 28 Jul 2022 06:37:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34316 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234891AbiG1Kh3 (ORCPT ); Thu, 28 Jul 2022 06:37:29 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 69D94558E3 for ; Thu, 28 Jul 2022 03:37:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1659004647; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=/Pt9UGM5sL/4q0ANiVGEpiameCcnFg9RmfFRb3A4csQ=; b=TwQBuQnaNyNysxGYXKHoNkRXruKxj23kYrj8twKso/9q9N4bR6HsD0Y129beqFpY/1Ak6T gh5TCau/e+kz25iDmp3uNqxLZaA3Iw3fVX9Q5jDaeSlQMqV6pfb3jWSK95MRyam1fV+MmR 9C8ax9vp+MJxJ7IX9wTbqyyVKwASioA= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-509-PFn0PLCzPhKyfBGYZqHKzQ-1; Thu, 28 Jul 2022 06:37:26 -0400 X-MC-Unique: PFn0PLCzPhKyfBGYZqHKzQ-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 88D45280049C; Thu, 28 Jul 2022 10:37:25 +0000 (UTC) Received: from T590 (ovpn-8-26.pek2.redhat.com [10.72.8.26]) by smtp.corp.redhat.com (Postfix) with ESMTPS id A307918EB5; Thu, 28 Jul 2022 10:37:21 +0000 (UTC) Date: Thu, 28 Jul 2022 18:37:17 +0800 From: Ming Lei To: ZiyangZhang Cc: axboe@kernel.dk, linux-block@vger.kernel.org, xiaoguang.wang@linux.alibaba.com Subject: Re: [PATCH V3 1/2] ublk_cmd.h: add one new ublk command: UBLK_IO_NEED_GET_DATA Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Thu, Jul 28, 2022 at 05:31:23PM +0800, ZiyangZhang wrote: > Add one new ublk command: UBLK_IO_NEED_GET_DATA. It is prepared for a new > feature designed for a user application who wants to allocate IO buffer > and set IO buffer address only after it receives an IO request from > ublksrv. > > Signed-off-by: ZiyangZhang Reviewed-by: Ming Lei Thanks, Ming