From nobody Sat Feb 7 06:55:44 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 1491548192569917.1515686907554; Thu, 6 Apr 2017 23:56:32 -0700 (PDT) Received: from localhost ([::1]:49258 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cwNot-0000om-G8 for importer@patchew.org; Fri, 07 Apr 2017 02:56:31 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46039) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cwNnK-0007yo-59 for qemu-devel@nongnu.org; Fri, 07 Apr 2017 02:54:55 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cwNnJ-0004Uk-FJ for qemu-devel@nongnu.org; Fri, 07 Apr 2017 02:54:54 -0400 Received: from mx1.redhat.com ([209.132.183.28]:34384) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cwNnC-0004SP-Pl; Fri, 07 Apr 2017 02:54:46 -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 B11D0C0524EF; Fri, 7 Apr 2017 06:54:45 +0000 (UTC) Received: from lemon.redhat.com (ovpn-8-27.pek2.redhat.com [10.72.8.27]) by smtp.corp.redhat.com (Postfix) with ESMTP id 17C8C85796; Fri, 7 Apr 2017 06:54:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com B11D0C0524EF 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 B11D0C0524EF From: Fam Zheng To: qemu-devel@nongnu.org Date: Fri, 7 Apr 2017 14:54:10 +0800 Message-Id: <20170407065414.9143-3-famz@redhat.com> In-Reply-To: <20170407065414.9143-1-famz@redhat.com> References: <20170407065414.9143-1-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]); Fri, 07 Apr 2017 06:54:45 +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 2/6] block: Assert attached child node has right 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 , Fam Zheng , qemu-block@nongnu.org, Max Reitz , Ed Swierk , Stefan Hajnoczi , Paolo Bonzini 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" Suggested-by: Kevin Wolf Signed-off-by: Fam Zheng Reviewed-by: Stefan Hajnoczi --- block.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/block.c b/block.c index 927ba89..b8a3011 100644 --- a/block.c +++ b/block.c @@ -1752,6 +1752,9 @@ static void bdrv_replace_child_noperm(BdrvChild *chil= d, { BlockDriverState *old_bs =3D child->bs; =20 + if (old_bs && new_bs) { + assert(bdrv_get_aio_context(old_bs) =3D=3D bdrv_get_aio_context(ne= w_bs)); + } if (old_bs) { if (old_bs->quiesce_counter && child->role->drained_end) { child->role->drained_end(child); @@ -1852,6 +1855,7 @@ BdrvChild *bdrv_attach_child(BlockDriverState *parent= _bs, bdrv_get_cumulative_perm(parent_bs, &perm, &shared_perm); =20 assert(parent_bs->drv); + assert(bdrv_get_aio_context(parent_bs) =3D=3D bdrv_get_aio_context(chi= ld_bs)); parent_bs->drv->bdrv_child_perm(parent_bs, NULL, child_role, perm, shared_perm, &perm, &shared_perm= ); =20 --=20 2.9.3