From patchwork Thu Jan 12 16:44:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Hildenbrand X-Patchwork-Id: 13098444 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 DC7FCC54EBD for ; Thu, 12 Jan 2023 16:47:06 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pG0gj-0004Iz-2U; Thu, 12 Jan 2023 11:44:25 -0500 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 1pG0gf-0004HI-O9 for qemu-devel@nongnu.org; Thu, 12 Jan 2023 11:44:21 -0500 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 1pG0ge-0000eD-7C for qemu-devel@nongnu.org; Thu, 12 Jan 2023 11:44:21 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1673541859; 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=1fr6vZEWjOiuIoqkKICxG0tEOOGAmYLsqV4pK5w0WGo=; b=AT/GUuvJiPYbHvHzHMt9znua7HS5z3ivzKa7uSRLzJ2hgsAbhzzRAlvopN1TpcKDZdiKVW v4qfT81vBVuKGTpDc69QUAbdZisXHxIoiD7RFjhOGNGU1g50PDbqx8k48U9MQ9GD92OHBm 5wLekBz96w0pvgM3HkCus9qcdX57A68= 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-519-9wfzhtezMSqlPKLfuj8PDQ-1; Thu, 12 Jan 2023 11:44:18 -0500 X-MC-Unique: 9wfzhtezMSqlPKLfuj8PDQ-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id BB9323C0D84F for ; Thu, 12 Jan 2023 16:44:17 +0000 (UTC) Received: from t480s.fritz.box (unknown [10.39.193.30]) by smtp.corp.redhat.com (Postfix) with ESMTP id CA63E4078903; Thu, 12 Jan 2023 16:44:15 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Cc: David Hildenbrand , "Dr . David Alan Gilbert" , Juan Quintela , Peter Xu , "Michael S . Tsirkin" , Michal Privoznik Subject: [PATCH v3 5/8] migration/ram: Factor out check for advised postcopy Date: Thu, 12 Jan 2023 17:44:00 +0100 Message-Id: <20230112164403.105085-6-david@redhat.com> In-Reply-To: <20230112164403.105085-1-david@redhat.com> References: <20230112164403.105085-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 Received-SPF: pass client-ip=170.10.129.124; envelope-from=david@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 Let's factor out this check, to be used in virtio-mem context next. While at it, fix a spelling error in a related comment. Signed-off-by: David Hildenbrand Reviewed-by: Dr. David Alan Gilbert --- include/migration/misc.h | 4 +++- migration/migration.c | 7 +++++++ migration/ram.c | 8 +------- 3 files changed, 11 insertions(+), 8 deletions(-) diff --git a/include/migration/misc.h b/include/migration/misc.h index 465906710d..8b49841016 100644 --- a/include/migration/misc.h +++ b/include/migration/misc.h @@ -67,8 +67,10 @@ bool migration_has_failed(MigrationState *); /* ...and after the device transmission */ bool migration_in_postcopy_after_devices(MigrationState *); void migration_global_dump(Monitor *mon); -/* True if incomming migration entered POSTCOPY_INCOMING_DISCARD */ +/* True if incoming migration entered POSTCOPY_INCOMING_DISCARD */ bool migration_in_incoming_postcopy(void); +/* True if incoming migration entered POSTCOPY_INCOMING_ADVISE */ +bool migration_incoming_postcopy_advised(void); /* True if background snapshot is active */ bool migration_in_bg_snapshot(void); diff --git a/migration/migration.c b/migration/migration.c index 1d33a7efa0..b7677c14a9 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -2094,6 +2094,13 @@ bool migration_in_incoming_postcopy(void) return ps >= POSTCOPY_INCOMING_DISCARD && ps < POSTCOPY_INCOMING_END; } +bool migration_incoming_postcopy_advised(void) +{ + PostcopyState ps = postcopy_state_get(); + + return ps >= POSTCOPY_INCOMING_ADVISE && ps < POSTCOPY_INCOMING_END; +} + bool migration_in_bg_snapshot(void) { MigrationState *s = migrate_get_current(); diff --git a/migration/ram.c b/migration/ram.c index 334309f1c6..e51a7ee0ce 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -4091,12 +4091,6 @@ int ram_load_postcopy(QEMUFile *f, int channel) return ret; } -static bool postcopy_is_advised(void) -{ - PostcopyState ps = postcopy_state_get(); - return ps >= POSTCOPY_INCOMING_ADVISE && ps < POSTCOPY_INCOMING_END; -} - static bool postcopy_is_running(void) { PostcopyState ps = postcopy_state_get(); @@ -4167,7 +4161,7 @@ static int ram_load_precopy(QEMUFile *f) MigrationIncomingState *mis = migration_incoming_get_current(); int flags = 0, ret = 0, invalid_flags = 0, len = 0, i = 0; /* ADVISE is earlier, it shows the source has the postcopy capability on */ - bool postcopy_advised = postcopy_is_advised(); + bool postcopy_advised = migration_incoming_postcopy_advised(); if (!migrate_use_compression()) { invalid_flags |= RAM_SAVE_FLAG_COMPRESS_PAGE; }