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Thu, 06 Sep 2018 13:02:35 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Thu, 06 Sep 2018 13:02:35 +0000 (UTC) for IP:'10.11.54.3' DOMAIN:'int-mx03.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 v5 07/16] 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 , John Snow , Jeff Cody , Markus Armbruster , "Dr. David Alan Gilbert" , jtc@redhat.com, Max Reitz 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 Reviewed-by: Jeff Cody --- 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