From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 20538C43334 for ; Fri, 24 Jun 2022 15:57:07 +0000 (UTC) Received: from localhost ([::1]:53360 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1o4lgA-0002Tp-2o for qemu-devel@archiver.kernel.org; Fri, 24 Jun 2022 11:57:06 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:41218) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o4lR3-00069O-BV for qemu-devel@nongnu.org; Fri, 24 Jun 2022 11:41:29 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:50030) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o4lQy-0000pz-I7 for qemu-devel@nongnu.org; Fri, 24 Jun 2022 11:41:29 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1656085284; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=O3ikKUwNOaWf07Mgq0iXgXgq0du0UqZuzpiPPuVZ5LA=; b=F0eQVWJxUXiX3oWY41E8zzjGyYtJD8yOPkg+WwNEvyzCpCosn5gR1pXsqf5bvmSlOX3mh+ xjqv/yzsKiQik1snhENmLDx2O/MJbI9kh7m5J6Z4Lza+WBnXVe68nbgrbJ3WUPkkSC2B56 FcoknXrTpcZI30cLyy5hClyKwnMvGX4= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-649-kLO29PPIOImgvwlGVKmv_Q-1; Fri, 24 Jun 2022 11:41:20 -0400 X-MC-Unique: kLO29PPIOImgvwlGVKmv_Q-1 Received: from smtp.corp.redhat.com (int-mx09.intmail.prod.int.rdu2.redhat.com [10.11.54.9]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 78B212919EA7; Fri, 24 Jun 2022 15:41:20 +0000 (UTC) Received: from merkur.fritz.box (unknown [10.39.194.34]) by smtp.corp.redhat.com (Postfix) with ESMTP id D8A3C492C3B; Fri, 24 Jun 2022 15:41:19 +0000 (UTC) From: Kevin Wolf To: qemu-block@nongnu.org Cc: kwolf@redhat.com, qemu-devel@nongnu.org Subject: [PULL v2 07/20] block/export: Fix incorrect length passed to vu_queue_push() Date: Fri, 24 Jun 2022 17:40:50 +0200 Message-Id: <20220624154103.185902-8-kwolf@redhat.com> In-Reply-To: <20220624154103.185902-1-kwolf@redhat.com> References: <20220624154103.185902-1-kwolf@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.85 on 10.11.54.9 Received-SPF: pass client-ip=170.10.129.124; envelope-from=kwolf@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Xie Yongji Now the req->size is set to the correct value only when handling VIRTIO_BLK_T_GET_ID request. This patch fixes it. Signed-off-by: Xie Yongji Message-Id: <20220523084611.91-3-xieyongji@bytedance.com> Reviewed-by: Stefan Hajnoczi Signed-off-by: Kevin Wolf --- block/export/vhost-user-blk-server.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/block/export/vhost-user-blk-server.c b/block/export/vhost-user-blk-server.c index b2e458ade3..19c6ee51d3 100644 --- a/block/export/vhost-user-blk-server.c +++ b/block/export/vhost-user-blk-server.c @@ -60,8 +60,7 @@ static void vu_blk_req_complete(VuBlkReq *req) { VuDev *vu_dev = &req->server->vu_dev; - /* IO size with 1 extra status byte */ - vu_queue_push(vu_dev, req->vq, &req->elem, req->size + 1); + vu_queue_push(vu_dev, req->vq, &req->elem, req->size); vu_queue_notify(vu_dev, req->vq); free(req); @@ -207,6 +206,7 @@ static void coroutine_fn vu_blk_virtio_process_req(void *opaque) goto err; } + req->size = iov_size(in_iov, in_num); /* We always touch the last byte, so just see how big in_iov is. */ req->in = (void *)in_iov[in_num - 1].iov_base + in_iov[in_num - 1].iov_len @@ -267,7 +267,6 @@ static void coroutine_fn vu_blk_virtio_process_req(void *opaque) VIRTIO_BLK_ID_BYTES); snprintf(elem->in_sg[0].iov_base, size, "%s", "vhost_user_blk"); req->in->status = VIRTIO_BLK_S_OK; - req->size = elem->in_sg[0].iov_len; break; } case VIRTIO_BLK_T_DISCARD: -- 2.35.3