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=-7.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 9CE64C28D1D for ; Thu, 6 Jun 2019 11:54:17 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7568A207E0 for ; Thu, 6 Jun 2019 11:54:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7568A207E0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([127.0.0.1]:58972 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hYqyG-0000RW-Qn for qemu-devel@archiver.kernel.org; Thu, 06 Jun 2019 07:54:16 -0400 Received: from eggs.gnu.org ([209.51.188.92]:43518) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hYqxF-0008FD-So for qemu-devel@nongnu.org; Thu, 06 Jun 2019 07:53:14 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hYqxF-0008TI-18 for qemu-devel@nongnu.org; Thu, 06 Jun 2019 07:53:13 -0400 Received: from mx1.redhat.com ([209.132.183.28]:44840) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hYqxD-0008PS-2B; Thu, 06 Jun 2019 07:53:11 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id C51E830872D4; Thu, 6 Jun 2019 11:52:46 +0000 (UTC) Received: from dhcp-4-67.tlv.redhat.com (dhcp-4-67.tlv.redhat.com [10.35.4.67]) by smtp.corp.redhat.com (Postfix) with ESMTP id EBFA9619CB; Thu, 6 Jun 2019 11:52:41 +0000 (UTC) Message-ID: <1ac6b33e0e964003f1afbfa8243c2c45baeff1d1.camel@redhat.com> From: Maxim Levitsky To: Aarushi Mehta , qemu-devel@nongnu.org Date: Thu, 06 Jun 2019 14:52:40 +0300 In-Reply-To: <20190603123823.32661-4-mehta.aaru20@gmail.com> References: <20190603123823.32661-1-mehta.aaru20@gmail.com> <20190603123823.32661-4-mehta.aaru20@gmail.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.47]); Thu, 06 Jun 2019 11:53:05 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: Re: [Qemu-devel] [Qemu-block] [PATCH v4 3/9] block/block: add BDRV flag for io_uring X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Fam Zheng , Kevin Wolf , qemu-block@nongnu.org, Markus Armbruster , Max Reitz , saket.sinha89@gmail.com, Stefan Hajnoczi , Paolo Bonzini , Julia Suvorova Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Mon, 2019-06-03 at 18:08 +0530, Aarushi Mehta wrote: > Signed-off-by: Aarushi Mehta > Reviewed-by: Stefan Hajnoczi > --- > include/block/block.h | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/include/block/block.h b/include/block/block.h > index 9b083e2bca..60f7c6c01c 100644 > --- a/include/block/block.h > +++ b/include/block/block.h > @@ -121,6 +121,7 @@ typedef struct HDGeometry { > ignoring the format layer */ > #define BDRV_O_NO_IO 0x10000 /* don't initialize for I/O */ > #define BDRV_O_AUTO_RDONLY 0x20000 /* degrade to read-only if opening read-write fails */ > +#define BDRV_O_IO_URING 0x40000 /* use io_uring instead of the thread pool */ > > #define BDRV_O_CACHE_MASK (BDRV_O_NOCACHE | BDRV_O_NO_FLUSH) > I had some fun learning now why do we need that flag. Lot of code could be removed when someday we will remove the -drive interface. Reviewed-by: Maxim Levitsky Best regards, Maxim Levitsky