From patchwork Mon Oct 2 12:20:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Juan Quintela X-Patchwork-Id: 1842058 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=EOA7V8R/; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4Rzg7m0mwLz1ypx for ; Mon, 2 Oct 2023 23:22:27 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qnHv5-0007UO-0J; Mon, 02 Oct 2023 08:21:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qnHuy-0007QU-Cs for qemu-devel@nongnu.org; Mon, 02 Oct 2023 08:20:56 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qnHuw-0007dT-G2 for qemu-devel@nongnu.org; Mon, 02 Oct 2023 08:20:56 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1696249253; 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=B0J+mijwmuuNWrRcnchQszr2EoxY+P4589QcyYVV0Sw=; b=EOA7V8R/1DQVBqO4WlSMPHJdZSeIKiB7xzYIY249nlQFauJ0MeOAFdo+UZMX2GD973xMsV suzTmJXycmislLFLb8bH8w96F38xETbie/tC1pmATANxE4TpEvASGlCkS5vMKeXLgYOisQ Bz7sFHStObOgLBGvNPZ8BCQ1DAVA3E4= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-463-vb3OFZVeO2OsAQS3zGa4mw-1; Mon, 02 Oct 2023 08:20:46 -0400 X-MC-Unique: vb3OFZVeO2OsAQS3zGa4mw-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id DA878811E8D; Mon, 2 Oct 2023 12:20:45 +0000 (UTC) Received: from secure.mitica (unknown [10.39.192.38]) by smtp.corp.redhat.com (Postfix) with ESMTP id 399262156702; Mon, 2 Oct 2023 12:20:44 +0000 (UTC) From: Juan Quintela To: qemu-devel@nongnu.org Cc: Peter Xu , Laurent Vivier , qemu-block@nongnu.org, Thomas Huth , Juan Quintela , Paolo Bonzini , Leonardo Bras , Fam Zheng , Stefan Hajnoczi Subject: [PULL 11/13] migration/rdma: Don't use imaginary transfers Date: Mon, 2 Oct 2023 14:20:19 +0200 Message-ID: <20231002122021.231959-12-quintela@redhat.com> In-Reply-To: <20231002122021.231959-1-quintela@redhat.com> References: <20231002122021.231959-1-quintela@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.6 Received-SPF: pass client-ip=170.10.129.124; envelope-from=quintela@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org RDMA protocol is completely asynchronous, so in qemu_rdma_save_page() they "invent" that a byte has been transferred. And then they call qemu_file_credit_transfer() and ram_transferred_add() with that byte. Just remove that calls as nothing has been sent. Reviewed-by: Leonardo Bras Signed-off-by: Juan Quintela Message-Id: <20230515195709.63843-14-quintela@redhat.com> --- migration/qemu-file.c | 5 +---- migration/ram.c | 1 - 2 files changed, 1 insertion(+), 5 deletions(-) diff --git a/migration/qemu-file.c b/migration/qemu-file.c index 19c33c9985..e53ff2dd86 100644 --- a/migration/qemu-file.c +++ b/migration/qemu-file.c @@ -332,13 +332,10 @@ size_t ram_control_save_page(QEMUFile *f, ram_addr_t block_offset, if (ret != RAM_SAVE_CONTROL_DELAYED && ret != RAM_SAVE_CONTROL_NOT_SUPP) { - if (bytes_sent && *bytes_sent > 0) { - qemu_file_credit_transfer(f, *bytes_sent); - } else if (ret < 0) { + if (ret < 0) { qemu_file_set_error(f, ret); } } - return ret; } diff --git a/migration/ram.c b/migration/ram.c index f2c5b07919..c6238f7a8b 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -1197,7 +1197,6 @@ static bool control_save_page(PageSearchStatus *pss, RAMBlock *block, } if (bytes_xmit) { - ram_transferred_add(bytes_xmit); *pages = 1; }