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Tue, 22 Sep 2020 16:04:39 +0000 (UTC) Received: from localhost (ovpn-115-55.ams2.redhat.com [10.36.115.55]) by smtp.corp.redhat.com (Postfix) with ESMTP id F2C671B42F; Tue, 22 Sep 2020 16:04:35 +0000 (UTC) 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 Received-SPF: pass client-ip=216.205.24.124; envelope-from=stefanha@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/22 00:31:51 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.455, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, MIME_BASE64_TEXT=1.741, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , qemu-block@nongnu.org, Markus Armbruster , Coiby Xu , mreitz@redhat.com, Stefan Hajnoczi Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" 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 iovec *iov, return -EINVAL; } -static void coroutine_fn vu_block_flush(VuBlockReq *req) +static int coroutine_fn vu_block_flush(VuBlockReq *req) { VuBlockDev *vdev_blk = get_vu_block_device_by_server(req->server); BlockBackend *backend = vdev_blk->backend; - blk_co_flush(backend); + return blk_co_flush(backend); } static void coroutine_fn vu_block_virtio_process_req(void *opaque) @@ -152,8 +152,11 @@ static void coroutine_fn vu_block_virtio_process_req(void *opaque) break; } case VIRTIO_BLK_T_FLUSH: - vu_block_flush(req); - req->in->status = VIRTIO_BLK_S_OK; + if (vu_block_flush(req) == 0) { + req->in->status = VIRTIO_BLK_S_OK; + } else { + req->in->status = VIRTIO_BLK_S_IOERR; + } break; case VIRTIO_BLK_T_GET_ID: { size_t size = MIN(iov_size(&elem->in_sg[0], in_num),