From nobody Mon Feb 9 09:15:58 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1636038022906994.9081771211069; Thu, 4 Nov 2021 08:00:22 -0700 (PDT) Received: from localhost ([::1]:60594 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mieE1-0006AK-U1 for importer@patchew.org; Thu, 04 Nov 2021 11:00:21 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:51276) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mie86-0003Fm-Dv for qemu-devel@nongnu.org; Thu, 04 Nov 2021 10:54:14 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:32450) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mie84-0006tJ-54 for qemu-devel@nongnu.org; Thu, 04 Nov 2021 10:54:14 -0400 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-536-c19v-D3vPm6ea2jzX79FFQ-1; Thu, 04 Nov 2021 10:54:08 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id C351A19251A0; Thu, 4 Nov 2021 14:54:06 +0000 (UTC) Received: from virtlab701.virt.lab.eng.bos.redhat.com (virtlab701.virt.lab.eng.bos.redhat.com [10.19.152.228]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4C7476418A; Thu, 4 Nov 2021 14:53:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1636037651; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UrRfMkBnaj5EI7rovdrJF0eNhgCHysukHpqKwzSsn3Y=; b=eJadbEIblKEov/sHdGOy/PuwvhJgl2tMIoNSQBvUyEnUNDoEq707U4UyZDad5UVG/vKK5j xBc1n6gx8MDxWPp85JyvPYCQaK5rIf66qeEXbXHAZS8UwZN4LpcA39EmI/aFPPfkw/hw5W 7QsZ9r5VMYucbWC5ClcSG0OYpkSbJbg= X-MC-Unique: c19v-D3vPm6ea2jzX79FFQ-1 From: Emanuele Giuseppe Esposito To: qemu-block@nongnu.org Subject: [RFC PATCH v2 05/14] block/mirror.c: use of job helpers in drivers to avoid TOC/TOU Date: Thu, 4 Nov 2021 10:53:25 -0400 Message-Id: <20211104145334.1346363-6-eesposit@redhat.com> In-Reply-To: <20211104145334.1346363-1-eesposit@redhat.com> References: <20211104145334.1346363-1-eesposit@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=eesposit@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=eesposit@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -33 X-Spam_score: -3.4 X-Spam_bar: --- X-Spam_report: (-3.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.648, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Fam Zheng , Vladimir Sementsov-Ogievskiy , Wen Congyang , Xie Changlong , Emanuele Giuseppe Esposito , Markus Armbruster , qemu-devel@nongnu.org, Hanna Reitz , Stefan Hajnoczi , Paolo Bonzini , John Snow Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1636038024045100001 Content-Type: text/plain; charset="utf-8" Once job lock is used and aiocontext is removed, mirror has to perform job operations under the same critical section, using the helpers prepared in previous commit. Note: at this stage, job_{lock/unlock} and job lock guard macros are *nop*. Signed-off-by: Emanuele Giuseppe Esposito --- block/mirror.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/block/mirror.c b/block/mirror.c index 00089e519b..f22fa7da6e 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -653,7 +653,7 @@ static int mirror_exit_common(Job *job) BlockDriverState *target_bs; BlockDriverState *mirror_top_bs; Error *local_err =3D NULL; - bool abort =3D job->ret < 0; + bool abort =3D job_has_failed(job); int ret =3D 0; =20 if (s->prepared) { @@ -1161,9 +1161,7 @@ static void mirror_complete(Job *job, Error **errp) s->should_complete =3D true; =20 /* If the job is paused, it will be re-entered when it is resumed */ - if (!job->paused) { - job_enter(job); - } + job_enter_not_paused(job); } =20 static void coroutine_fn mirror_pause(Job *job) @@ -1182,7 +1180,7 @@ static bool mirror_drained_poll(BlockJob *job) * from one of our own drain sections, to avoid a deadlock waiting for * ourselves. */ - if (!s->common.job.paused && !job_is_cancelled(&job->job) && !s->in_dr= ain) { + if (job_not_paused_nor_cancelled(&s->common.job) && !s->in_drain) { return true; } =20 --=20 2.27.0