From nobody Wed Nov 5 10:30:08 2025 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.zohomail.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 1499359511057830.1923550884641; Thu, 6 Jul 2017 09:45:11 -0700 (PDT) Received: from localhost ([::1]:52410 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dT9tt-000229-Qp for importer@patchew.org; Thu, 06 Jul 2017 12:45:09 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33168) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dT9nj-0004sX-Dt for qemu-devel@nongnu.org; Thu, 06 Jul 2017 12:38:52 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dT9ni-00064L-MZ for qemu-devel@nongnu.org; Thu, 06 Jul 2017 12:38:47 -0400 Received: from mx1.redhat.com ([209.132.183.28]:55874) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dT9ng-00062W-SR; Thu, 06 Jul 2017 12:38:44 -0400 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id C60C07F3E3; Thu, 6 Jul 2017 16:38:43 +0000 (UTC) Received: from donizetti.redhat.com (ovpn-117-229.ams2.redhat.com [10.36.117.229]) by smtp.corp.redhat.com (Postfix) with ESMTP id A519060A9D; Thu, 6 Jul 2017 16:38:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com C60C07F3E3 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=pbonzini@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com C60C07F3E3 From: Paolo Bonzini To: qemu-devel@nongnu.org Date: Thu, 6 Jul 2017 18:38:23 +0200 Message-Id: <20170706163828.24082-7-pbonzini@redhat.com> In-Reply-To: <20170706163828.24082-1-pbonzini@redhat.com> References: <20170706163828.24082-1-pbonzini@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Thu, 06 Jul 2017 16:38:43 +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 06/11] block: add a few more notes on locking 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: famz@redhat.com, stefanha@redhat.com, qemu-block@nongnu.org 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: Paolo Bonzini Reviewed-by: Stefan Hajnoczi --- include/block/block_int.h | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/include/block/block_int.h b/include/block/block_int.h index 173d9dcaf9..43c9f4fcae 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -114,7 +114,9 @@ struct BlockDriver { /* Set if a driver can support backing files */ bool supports_backing; =20 - /* For handling image reopen for split or non-split files */ + /* For handling image reopen for split or non-split files. Called + * with no I/O pending. + */ int (*bdrv_reopen_prepare)(BDRVReopenState *reopen_state, BlockReopenQueue *queue, Error **errp); void (*bdrv_reopen_commit)(BDRVReopenState *reopen_state); @@ -125,11 +127,13 @@ struct BlockDriver { Error **errp); int (*bdrv_file_open)(BlockDriverState *bs, QDict *options, int flags, Error **errp); - void (*bdrv_close)(BlockDriverState *bs); int (*bdrv_create)(const char *filename, QemuOpts *opts, Error **errp); - int (*bdrv_set_key)(BlockDriverState *bs, const char *key); int (*bdrv_make_empty)(BlockDriverState *bs); =20 + /* Called from main thread. */ + void (*bdrv_close)(BlockDriverState *bs); + int (*bdrv_set_key)(BlockDriverState *bs, const char *key); + void (*bdrv_refresh_filename)(BlockDriverState *bs, QDict *options); =20 /* aio */ --=20 2.13.0