From nobody Mon Feb 9 20:13:04 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 1492595744081248.83030625429444; Wed, 19 Apr 2017 02:55:44 -0700 (PDT) Received: from localhost ([::1]:46764 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d0mKs-0004hJ-PZ for importer@patchew.org; Wed, 19 Apr 2017 05:55:42 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53019) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d0mAm-0004pJ-Ch for qemu-devel@nongnu.org; Wed, 19 Apr 2017 05:45:17 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d0mAl-0005y8-LE for qemu-devel@nongnu.org; Wed, 19 Apr 2017 05:45:16 -0400 Received: from mx1.redhat.com ([209.132.183.28]:53134) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1d0mAj-0005ui-GW; Wed, 19 Apr 2017 05:45:13 -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 62278C04BD37; Wed, 19 Apr 2017 09:45:12 +0000 (UTC) Received: from lemon.redhat.com (ovpn-8-64.pek2.redhat.com [10.72.8.64]) by smtp.corp.redhat.com (Postfix) with ESMTP id AAA6918A42; Wed, 19 Apr 2017 09:45:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 62278C04BD37 Authentication-Results: ext-mx07.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx07.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=famz@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 62278C04BD37 From: Fam Zheng To: qemu-devel@nongnu.org Date: Wed, 19 Apr 2017 17:43:54 +0800 Message-Id: <20170419094356.19826-15-famz@redhat.com> In-Reply-To: <20170419094356.19826-1-famz@redhat.com> References: <20170419094356.19826-1-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 [10.5.110.31]); Wed, 19 Apr 2017 09:45:12 +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 v2 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 Reviewed-by: Stefan Hajnoczi --- 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 2.9.3