From nobody Mon Feb 9 22:38:37 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 1495594911899157.03300453528664; Tue, 23 May 2017 20:01:51 -0700 (PDT) Received: from localhost ([::1]:52407 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dDMYY-0007Nv-Fs for importer@patchew.org; Tue, 23 May 2017 23:01:50 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34236) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dDMQU-0000kh-KD for qemu-devel@nongnu.org; Tue, 23 May 2017 22:53:31 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dDMQT-00076L-Uh for qemu-devel@nongnu.org; Tue, 23 May 2017 22:53:30 -0400 Received: from mx1.redhat.com ([209.132.183.28]:59874) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dDMQS-000756-1L; Tue, 23 May 2017 22:53:28 -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 E3F7BC056784; Wed, 24 May 2017 02:53:26 +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 9557718993; Wed, 24 May 2017 02:53:23 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com E3F7BC056784 Authentication-Results: ext-mx08.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx08.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=famz@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com E3F7BC056784 From: Fam Zheng To: qemu-devel@nongnu.org Date: Wed, 24 May 2017 10:52:30 +0800 Message-Id: <20170524025235.32190-12-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 [10.5.110.32]); Wed, 24 May 2017 02:53:27 +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 11/16] virtio-scsi: Request BLK_PERM_AIO_CONTEXT_CHANGE for dataplane 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" blk_set_aio_context is audited by perm API, so follow the protocol and request for permission first. Signed-off-by: Fam Zheng --- hw/scsi/virtio-scsi.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c index 46a3e3f..074e235 100644 --- a/hw/scsi/virtio-scsi.c +++ b/hw/scsi/virtio-scsi.c @@ -794,6 +794,10 @@ static void virtio_scsi_hotplug(HotplugHandler *hotplu= g_dev, DeviceState *dev, return; } virtio_scsi_acquire(s); + if (!blk_request_perm(sd->conf.blk, BLK_PERM_AIO_CONTEXT_CHANGE, e= rrp)) { + virtio_scsi_release(s); + return; + } blk_set_aio_context(sd->conf.blk, s->ctx); virtio_scsi_release(s); =20 --=20 2.9.4