From nobody Mon Feb 9 18:44:31 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 1490066296500203.86755495559078; Mon, 20 Mar 2017 20:18:16 -0700 (PDT) Received: from localhost ([::1]:36387 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cqAJL-0001QB-3U for importer@patchew.org; Mon, 20 Mar 2017 23:18:15 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39355) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cqAIC-0001OR-5m for qemu-devel@nongnu.org; Mon, 20 Mar 2017 23:17:05 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cqAIB-0000KX-DK for qemu-devel@nongnu.org; Mon, 20 Mar 2017 23:17:04 -0400 Received: from mx1.redhat.com ([209.132.183.28]:43186) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cqAI6-0000IT-80; Mon, 20 Mar 2017 23:16:58 -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 EE91D81F01; Tue, 21 Mar 2017 03:16:53 +0000 (UTC) Received: from lemon.redhat.com (ovpn-8-61.pek2.redhat.com [10.72.8.61]) by smtp.corp.redhat.com (Postfix) with ESMTP id DDAAAA2A50; Tue, 21 Mar 2017 03:16:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com EE91D81F01 Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=famz@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com EE91D81F01 From: Fam Zheng To: qemu-devel@nongnu.org Date: Tue, 21 Mar 2017 11:16:20 +0800 Message-Id: <20170321031635.22123-2-famz@redhat.com> In-Reply-To: <20170321031635.22123-1-famz@redhat.com> References: <20170321031635.22123-1-famz@redhat.com> 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 [10.5.110.25]); Tue, 21 Mar 2017 03:16:54 +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 RFC 01/16] block: Define BLK_PERM_AIO_CONTEXT_CHANGE 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 , Paolo Bonzini , 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" Signed-off-by: Fam Zheng --- block.c | 2 ++ include/block/block.h | 7 ++++++- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/block.c b/block.c index 6e906ec..ae9327b 100644 --- a/block.c +++ b/block.c @@ -1547,6 +1547,8 @@ static char *bdrv_perm_names(uint64_t perm) { BLK_PERM_WRITE_UNCHANGED, "write unchanged" }, { BLK_PERM_RESIZE, "resize" }, { BLK_PERM_GRAPH_MOD, "change children" }, + { BLK_PERM_AIO_CONTEXT_CHANGE, + "aio context change" }, { 0, NULL } }; =20 diff --git a/include/block/block.h b/include/block/block.h index 5149260..989bdcc 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -221,7 +221,12 @@ enum { */ BLK_PERM_GRAPH_MOD =3D 0x10, =20 - BLK_PERM_ALL =3D 0x1f, + /** + * This permission is required to change the AioContext of this node. + */ + BLK_PERM_AIO_CONTEXT_CHANGE =3D 0x20, + + BLK_PERM_ALL =3D 0x3f, }; =20 /* disk I/O throttling */ --=20 2.9.3