From patchwork Thu Mar 16 15:12:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Juan Quintela X-Patchwork-Id: 13177779 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 C72D0C6FD19 for ; Thu, 16 Mar 2023 15:14:44 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pcpHd-0001ay-TX; Thu, 16 Mar 2023 11:12:51 -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 1pcpHT-0001RP-Bf for qemu-devel@nongnu.org; Thu, 16 Mar 2023 11:12:40 -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 1pcpHR-0003Iu-TZ for qemu-devel@nongnu.org; Thu, 16 Mar 2023 11:12:39 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1678979557; 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=kJLO7E81w+2tfpouAoYTRxbBc1A1C7rZpQoVjfCfXsU=; b=CoCbH7Mftb2nHFJw5d3Vb5LMtJmmNlgVOP+SoMbcJxoMhC06ND1Csp3cW65l/fFzbuya7S 740dUwhjeN2iiEVuupsa0N4WFmzayLkRhdjB+gmlHfnwluVWTacjwSfMukNj80m2VCYPdh Pf50bzGIgvFweWA9L8I73IvmlEL/If0= 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-581-yz-xIymoPIeiLy69eu7hFg-1; Thu, 16 Mar 2023 11:12:34 -0400 X-MC-Unique: yz-xIymoPIeiLy69eu7hFg-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 995253815F73; Thu, 16 Mar 2023 15:12:33 +0000 (UTC) Received: from secure.mitica (unknown [10.39.195.45]) by smtp.corp.redhat.com (Postfix) with ESMTP id E14E1492B00; Thu, 16 Mar 2023 15:12:32 +0000 (UTC) From: Juan Quintela To: qemu-devel@nongnu.org Cc: Juan Quintela , "Dr. David Alan Gilbert" , Wei Wang Subject: [PULL 6/7] migration/multifd: correct multifd_send_thread to trace the flags Date: Thu, 16 Mar 2023 16:12:24 +0100 Message-Id: <20230316151225.11362-7-quintela@redhat.com> In-Reply-To: <20230316151225.11362-1-quintela@redhat.com> References: <20230316151225.11362-1-quintela@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.9 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_H2=-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: 2.1.29 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Wei Wang The p->flags could be updated via the send_prepare callback, e.g. OR-ed with MULTIFD_FLAG_ZLIB via zlib_send_prepare. Assign p->flags to the local "flags" before the send_prepare callback could only get partial of p->flags. Fix it by moving the assignment of p->flags to the local flags after the callback, so that the correct flags can be traced. Fixes: ab7cbb0b9a3b ("multifd: Make no compression operations into its own structure") Signed-off-by: Wei Wang Reviewed-by: Juan Quintela Signed-off-by: Juan Quintela --- migration/multifd.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/migration/multifd.c b/migration/multifd.c index 5e85c3ea9b..cbc0dfe39b 100644 --- a/migration/multifd.c +++ b/migration/multifd.c @@ -677,7 +677,7 @@ static void *multifd_send_thread(void *opaque) if (p->pending_job) { uint64_t packet_num = p->packet_num; - uint32_t flags = p->flags; + uint32_t flags; p->normal_num = 0; if (use_zero_copy_send) { @@ -699,6 +699,7 @@ static void *multifd_send_thread(void *opaque) } } multifd_send_fill_packet(p); + flags = p->flags; p->flags = 0; p->num_packets++; p->total_normal_pages += p->normal_num;