From nobody Wed Nov 5 18:17:56 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; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1536081130574314.6506469847361; Tue, 4 Sep 2018 10:12:10 -0700 (PDT) Received: from localhost ([::1]:51892 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fxEs4-0006JQ-Ag for importer@patchew.org; Tue, 04 Sep 2018 13:12:08 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53221) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fxEpn-0004ju-CV for qemu-devel@nongnu.org; Tue, 04 Sep 2018 13:09:48 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fxEpm-0001ft-BY for qemu-devel@nongnu.org; Tue, 04 Sep 2018 13:09:47 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:46936 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fxEpj-0001cK-MN; Tue, 04 Sep 2018 13:09:43 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 0F962402243B; Tue, 4 Sep 2018 17:09:43 +0000 (UTC) Received: from probe.redhat.com (ovpn-121-128.rdu2.redhat.com [10.10.121.128]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4A109A9F21; Tue, 4 Sep 2018 17:09:42 +0000 (UTC) From: John Snow To: qemu-block@nongnu.org, qemu-devel@nongnu.org Date: Tue, 4 Sep 2018 13:09:22 -0400 Message-Id: <20180904170930.28619-8-jsnow@redhat.com> In-Reply-To: <20180904170930.28619-1-jsnow@redhat.com> References: <20180904170930.28619-1-jsnow@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Tue, 04 Sep 2018 17:09:43 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Tue, 04 Sep 2018 17:09:43 +0000 (UTC) for IP:'10.11.54.5' DOMAIN:'int-mx05.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'jsnow@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PATCH v4 07/15] block/stream: refactor stream to use job callbacks 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 , Markus Armbruster , Jeff Cody , "Dr. David Alan Gilbert" , Max Reitz , John Snow , jtc@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RDMRC_1 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: John Snow Reviewed-by: Max Reitz --- block/stream.c | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-) diff --git a/block/stream.c b/block/stream.c index 700eb239e4..81a7ec8ece 100644 --- a/block/stream.c +++ b/block/stream.c @@ -54,16 +54,16 @@ static int coroutine_fn stream_populate(BlockBackend *b= lk, return blk_co_preadv(blk, offset, qiov.size, &qiov, BDRV_REQ_COPY_ON_R= EAD); } =20 -static void stream_exit(Job *job) +static int stream_prepare(Job *job) { StreamBlockJob *s =3D container_of(job, StreamBlockJob, common.job); BlockJob *bjob =3D &s->common; BlockDriverState *bs =3D blk_bs(bjob->blk); BlockDriverState *base =3D s->base; Error *local_err =3D NULL; - int ret =3D job->ret; + int ret =3D 0; =20 - if (!job_is_cancelled(job) && bs->backing && ret =3D=3D 0) { + if (bs->backing) { const char *base_id =3D NULL, *base_fmt =3D NULL; if (base) { base_id =3D s->backing_file_str; @@ -75,12 +75,19 @@ static void stream_exit(Job *job) bdrv_set_backing_hd(bs, base, &local_err); if (local_err) { error_report_err(local_err); - ret =3D -EPERM; - goto out; + return -EPERM; } } =20 -out: + return ret; +} + +static void stream_clean(Job *job) +{ + StreamBlockJob *s =3D container_of(job, StreamBlockJob, common.job); + BlockJob *bjob =3D &s->common; + BlockDriverState *bs =3D blk_bs(bjob->blk); + /* Reopen the image back in read-only mode if necessary */ if (s->bs_flags !=3D bdrv_get_flags(bs)) { /* Give up write permissions before making it read-only */ @@ -89,7 +96,6 @@ out: } =20 g_free(s->backing_file_str); - job->ret =3D ret; } =20 static int coroutine_fn stream_run(Job *job, Error **errp) @@ -206,7 +212,8 @@ static const BlockJobDriver stream_job_driver =3D { .job_type =3D JOB_TYPE_STREAM, .free =3D block_job_free, .run =3D stream_run, - .exit =3D stream_exit, + .prepare =3D stream_prepare, + .clean =3D stream_clean, .user_resume =3D block_job_user_resume, .drain =3D block_job_drain, }, --=20 2.14.4