From nobody Mon Feb 9 23:02:11 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zoho.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1495595154516222.69916747344757; Tue, 23 May 2017 20:05:54 -0700 (PDT) Received: from localhost ([::1]:52435 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dDMcT-000271-Av for importer@patchew.org; Tue, 23 May 2017 23:05:53 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34360) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dDMQi-0000xz-FJ for qemu-devel@nongnu.org; Tue, 23 May 2017 22:53:45 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dDMQf-0007BF-EV for qemu-devel@nongnu.org; Tue, 23 May 2017 22:53:44 -0400 Received: from mx1.redhat.com ([209.132.183.28]:52048) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dDMQd-0007AF-Ma; Tue, 23 May 2017 22:53:39 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 9418285543; Wed, 24 May 2017 02:53:38 +0000 (UTC) Received: from lemon.redhat.com (ovpn-12-75.pek2.redhat.com [10.72.12.75]) by smtp.corp.redhat.com (Postfix) with ESMTP id EC4DB5C6CD; Wed, 24 May 2017 02:53:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 9418285543 Authentication-Results: ext-mx04.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx04.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=famz@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 9418285543 From: Fam Zheng To: qemu-devel@nongnu.org Date: Wed, 24 May 2017 10:52:33 +0800 Message-Id: <20170524025235.32190-15-famz@redhat.com> In-Reply-To: <20170524025235.32190-1-famz@redhat.com> References: <20170524025235.32190-1-famz@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Wed, 24 May 2017 02:53:38 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v3 14/16] nbd: Allow BLK_PERM_AIO_CONTEXT_CHANGE on BB 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: Kevin Wolf , qemu-block@nongnu.org, Stefan Hajnoczi , Max Reitz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" This is safe because of the aio context notifier we'll register on this node. So allow it. Signed-off-by: Fam Zheng --- nbd/server.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/nbd/server.c b/nbd/server.c index 924a1fe..a8f58fb 100644 --- a/nbd/server.c +++ b/nbd/server.c @@ -900,8 +900,10 @@ NBDExport *nbd_export_new(BlockDriverState *bs, off_t = dev_offset, off_t size, if ((nbdflags & NBD_FLAG_READ_ONLY) =3D=3D 0) { perm |=3D BLK_PERM_WRITE; } - blk =3D blk_new(perm, BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE_UNCHAN= GED | - BLK_PERM_WRITE | BLK_PERM_GRAPH_MOD); + blk =3D blk_new(perm, + BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE_UNCHANGED | + BLK_PERM_WRITE | BLK_PERM_GRAPH_MOD | + BLK_PERM_AIO_CONTEXT_CHANGE); ret =3D blk_insert_bs(blk, bs, errp); if (ret < 0) { goto fail; --=20 2.9.4