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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D4229C4332F for ; Mon, 1 Nov 2021 22:10:00 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9C1486058D for ; Mon, 1 Nov 2021 22:10:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 9C1486058D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.219428.380250 (Exim 4.92) (envelope-from ) id 1mhfUf-0000FN-Iu; Mon, 01 Nov 2021 22:09:29 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 219428.380250; Mon, 01 Nov 2021 22:09:29 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1mhfUf-0000FE-Ec; Mon, 01 Nov 2021 22:09:29 +0000 Received: by outflank-mailman (input) for mailman id 219428; Mon, 01 Nov 2021 22:09:28 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1mhfUe-0000By-BX for xen-devel@lists.xenproject.org; Mon, 01 Nov 2021 22:09:28 +0000 Received: from us-smtp-delivery-124.mimecast.com (unknown [170.10.133.124]) by us1-rack-iad1.inumbo.com (Halon) with ESMTP id faed5ff8-c9c6-43ca-808f-521c3c679996; Mon, 01 Nov 2021 22:09:27 +0000 (UTC) Received: from mail-wr1-f70.google.com (mail-wr1-f70.google.com [209.85.221.70]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-464-TpMtcGBdNeesXy2DrtFEFQ-1; Mon, 01 Nov 2021 18:09:26 -0400 Received: by mail-wr1-f70.google.com with SMTP id d7-20020a5d6447000000b00186a113463dso1198922wrw.10 for ; Mon, 01 Nov 2021 15:09:26 -0700 (PDT) Received: from localhost (static-233-86-86-188.ipcom.comunitel.net. [188.86.86.233]) by smtp.gmail.com with ESMTPSA id o17sm685487wmq.11.2021.11.01.15.09.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 Nov 2021 15:09:24 -0700 (PDT) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: faed5ff8-c9c6-43ca-808f-521c3c679996 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1635804567; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=GGo9WanuJU04tuhhnw4peEWGOBw6c3WDbeGbMBl0UrM=; b=CxE49QFwEnLn5ozH0njoOjqV0y/Y9CbD0DHU97jOrCpeiZ73tHyjt2KFCAkRCrotaFm8PT IOP4IFxlq+NBRFVWHQC+dynHM0bhn+EQJe3r+cRU1Sr4oouxMZaZK6gT+ZwT4lBt5cvNBf w9Cl+GmwmkIY40c9fqDupbx4Sf43htg= X-MC-Unique: TpMtcGBdNeesXy2DrtFEFQ-1 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=GGo9WanuJU04tuhhnw4peEWGOBw6c3WDbeGbMBl0UrM=; b=v3VabxmKuOXMtxhN/3foCTRQD0Ig48DNpNt2XkKDiICJahE8tlavhjnQPhK5ITRkaX JRRKAPwl7VUOl0aGG8kgnx9UJH5zMqE/NPHzolt5pueYGZhdV1vveJpbU4DkmtqmD4rn bQjeIu6yXtRMaQbo9uyBRAXc4nlJ/Mb3FoFbi98X00m/kqCvJWZgBfgEI+8oINcC8Vtf LS4XUyfpJHjiS60qDPGCPLSyvHobEzpHv4eR/f8PgFy8vsnS4mV0I9UiA9LkJxFkiTVC ZkG8Jh6uGKZbHDP12q9CV5lP2pe3J5UwSCGTqQIo4F9ppReM6VZF75ymfSCbiZL9+0P/ Jn0A== X-Gm-Message-State: AOAM530y5dVFML1YVVIOY0n6n/TVsuq2omMrQ4eSbrm+UiRiMxheKr2s 1nBAtHwyaX712b3ReMnPqSQEDr9BMPcUg+a3ZVVHooP16w4heBhOtKvueRASJAgfIdZGSXonWPY PZY8glQ/L3UBVcSOH1djOrmhCv5k= X-Received: by 2002:a1c:7e41:: with SMTP id z62mr1955936wmc.9.1635804565091; Mon, 01 Nov 2021 15:09:25 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwpSY2086+CnGB9WPrHW5bo96aeVOpNDlLfr+WAapyjvAt6zv6pqshWIvxGHLts1sX02fyU2g== X-Received: by 2002:a1c:7e41:: with SMTP id z62mr1955923wmc.9.1635804564942; Mon, 01 Nov 2021 15:09:24 -0700 (PDT) From: Juan Quintela To: qemu-devel@nongnu.org Cc: Markus Armbruster , David Hildenbrand , Eduardo Habkost , xen-devel@lists.xenproject.org, Richard Henderson , Stefano Stabellini , Marcel Apfelbaum , Eric Blake , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , kvm@vger.kernel.org, Peter Xu , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Paul Durrant , Paolo Bonzini , "Dr. David Alan Gilbert" , Juan Quintela , "Michael S. Tsirkin" , Anthony Perard Subject: [PULL 08/20] migration: Make migration blocker work for snapshots too Date: Mon, 1 Nov 2021 23:09:00 +0100 Message-Id: <20211101220912.10039-9-quintela@redhat.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211101220912.10039-1-quintela@redhat.com> References: <20211101220912.10039-1-quintela@redhat.com> MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=quintela@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Peter Xu save_snapshot() checks migration blocker, which looks sane. At the meantime we should also teach the blocker add helper to fail if during a snapshot, just like for migrations. Reviewed-by: Marc-André Lureau Signed-off-by: Peter Xu Reviewed-by: Juan Quintela Signed-off-by: Juan Quintela --- migration/migration.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/migration/migration.c b/migration/migration.c index 9172686b89..e81e473f5a 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -2058,15 +2058,16 @@ int migrate_add_blocker(Error *reason, Error **errp) return -EACCES; } - if (migration_is_idle()) { - migration_blockers = g_slist_prepend(migration_blockers, reason); - return 0; + /* Snapshots are similar to migrations, so check RUN_STATE_SAVE_VM too. */ + if (runstate_check(RUN_STATE_SAVE_VM) || !migration_is_idle()) { + error_propagate_prepend(errp, error_copy(reason), + "disallowing migration blocker " + "(migration/snapshot in progress) for: "); + return -EBUSY; } - error_propagate_prepend(errp, error_copy(reason), - "disallowing migration blocker " - "(migration in progress) for: "); - return -EBUSY; + migration_blockers = g_slist_prepend(migration_blockers, reason); + return 0; } void migrate_del_blocker(Error *reason) -- 2.33.1