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bh=2Zau7i4WwA2sOzgmtuSsO1DFTPk1a1haFmHDmb8VWHk=; b=cMyBmBE88L3yXshtSXhfbuYDxtBQ2MBoqhR2opuuJ3Y2yRuZPosNyhWlRcBqpNQQuI6/wf rBdSGu0M45aYHrmSduhWfCtxBtyrF/z3slYUzJcOJOw/zlTLveliMObE3Ic/JfCpoGgwe+ qXsc+/S8yHMSqgusMO1zXukSH7vLIZU= X-MC-Unique: OFDwj5wNMqCvdcy7zrDZ9w-1 From: Stefan Hajnoczi To: qemu-devel@nongnu.org Subject: [PATCH 10/11] block/export: report flush errors Date: Tue, 22 Sep 2020 17:04:00 +0100 Message-Id: <20200922160401.294055-11-stefanha@redhat.com> In-Reply-To: <20200922160401.294055-1-stefanha@redhat.com> References: <20200922160401.294055-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=stefanha@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; 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charset="utf-8" Propagate the flush return value since errors are possible. Signed-off-by: Stefan Hajnoczi --- block/export/vhost-user-blk-server.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/block/export/vhost-user-blk-server.c b/block/export/vhost-user= -blk-server.c index b609a3e4d6..44d3c45fa2 100644 --- a/block/export/vhost-user-blk-server.c +++ b/block/export/vhost-user-blk-server.c @@ -78,11 +78,11 @@ vu_block_discard_write_zeroes(VuBlockReq *req, struct i= ovec *iov, return -EINVAL; } =20 -static void coroutine_fn vu_block_flush(VuBlockReq *req) +static int coroutine_fn vu_block_flush(VuBlockReq *req) { VuBlockDev *vdev_blk =3D get_vu_block_device_by_server(req->server); BlockBackend *backend =3D vdev_blk->backend; - blk_co_flush(backend); + return blk_co_flush(backend); } =20 static void coroutine_fn vu_block_virtio_process_req(void *opaque) @@ -152,8 +152,11 @@ static void coroutine_fn vu_block_virtio_process_req(v= oid *opaque) break; } case VIRTIO_BLK_T_FLUSH: - vu_block_flush(req); - req->in->status =3D VIRTIO_BLK_S_OK; + if (vu_block_flush(req) =3D=3D 0) { + req->in->status =3D VIRTIO_BLK_S_OK; + } else { + req->in->status =3D VIRTIO_BLK_S_IOERR; + } break; case VIRTIO_BLK_T_GET_ID: { size_t size =3D MIN(iov_size(&elem->in_sg[0], in_num), --=20 2.26.2