From nobody Mon Feb 9 20:59:46 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 1492595849028321.9438413316059; Wed, 19 Apr 2017 02:57:29 -0700 (PDT) Received: from localhost ([::1]:46778 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d0mMZ-00065n-Q0 for importer@patchew.org; Wed, 19 Apr 2017 05:57:27 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53098) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d0mAw-0004xu-7q for qemu-devel@nongnu.org; Wed, 19 Apr 2017 05:45:27 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d0mAv-00067G-Hu for qemu-devel@nongnu.org; Wed, 19 Apr 2017 05:45:26 -0400 Received: from mx1.redhat.com ([209.132.183.28]:38824) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1d0mAm-0005xx-6m; Wed, 19 Apr 2017 05:45:16 -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 207077F3EC; Wed, 19 Apr 2017 09:45:15 +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 0D4ED18A42; Wed, 19 Apr 2017 09:45:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 207077F3EC 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 207077F3EC From: Fam Zheng To: qemu-devel@nongnu.org Date: Wed, 19 Apr 2017 17:43:55 +0800 Message-Id: <20170419094356.19826-16-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 [10.5.110.25]); Wed, 19 Apr 2017 09:45:15 +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 15/16] block: Add perm assertion on blk_set_aio_context 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" Now that all BB users comply with the BLK_PERM_AIO_CONTEXT_CHANGE rule, we can assert it. Signed-off-by: Fam Zheng Reviewed-by: Stefan Hajnoczi --- block/block-backend.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/block/block-backend.c b/block/block-backend.c index 6133917..166edac 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -1670,8 +1670,12 @@ static AioContext *blk_aiocb_get_aio_context(BlockAI= OCB *acb) =20 void blk_set_aio_context(BlockBackend *blk, AioContext *new_context) { + uint64_t perm, shared_perm; BlockDriverState *bs =3D blk_bs(blk); =20 + blk_get_perm(blk, &perm, &shared_perm); + assert(perm & BLK_PERM_AIO_CONTEXT_CHANGE); + blk->aio_context =3D new_context; if (bs) { if (blk->public.throttle_state) { --=20 2.9.3