From nobody Sat Feb 7 08:58:27 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1582130492; cv=none; d=zohomail.com; s=zohoarc; b=RMBIfq65+YqiC9LDGXyS9h2Lpnd4tLPR5FwSlGOTnfG4TWyI2hhEukz/sc136ZxclcabTvvAYNsX9u7/QXgdUt7onhaRW3oSI1xpN7XR+00qPeOepmR3S7j+BoZ4nkgrlFDz5uym7jCVz0FcTMDmG0OZwV/6zsnsTjiZl38XSgs= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1582130492; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=weIuyWpQ4HsRvv7hJb8wpGUr7pFtv7kXTouN3VzlJG8=; b=GVeiVt5F5b1SGS89DNchj4i3PNcp9vSHPTUAOSUGm/iF1Tz/2X+qFgvm4tq+r9VeoHUkmOUmiBfylomhwlQbIiYrstiW1L6oFTL/HNlMYZTGB2tMipQp7bFop61wTUyqeJ0Y94h9OplAHUQi12Dehrtvt9Obw0272TjKkBp0GoU= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 158213049282594.46556947768715; Wed, 19 Feb 2020 08:41:32 -0800 (PST) Received: from localhost ([::1]:56142 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j4SPj-00068I-UB for importer@patchew.org; Wed, 19 Feb 2020 11:41:31 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:39124) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j4S3j-0001gj-C2 for qemu-devel@nongnu.org; Wed, 19 Feb 2020 11:18:48 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j4S3i-0004SO-8m for qemu-devel@nongnu.org; Wed, 19 Feb 2020 11:18:47 -0500 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:30180 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1j4S3i-0004SG-4n for qemu-devel@nongnu.org; Wed, 19 Feb 2020 11:18:46 -0500 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-264-w2FeIq_HP8S8yURxRV0JZg-1; Wed, 19 Feb 2020 11:18:44 -0500 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 25B24109BFC6; Wed, 19 Feb 2020 16:18:43 +0000 (UTC) Received: from t480s.redhat.com (ovpn-116-151.ams2.redhat.com [10.36.116.151]) by smtp.corp.redhat.com (Postfix) with ESMTP id E335C89F13; Wed, 19 Feb 2020 16:18:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1582129125; 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=weIuyWpQ4HsRvv7hJb8wpGUr7pFtv7kXTouN3VzlJG8=; b=NYfme8wAqtIVfndFbrelMm+bDEEjSI8aN/biru7HPcGlN1srgOmzLtNLdiCMTLUfbA8geL /jtoWV+muTBcxeLRjzLk0g5kz/TGdb9x8vhn7YE8Rdwe754WeF8r2oF5AuH+KqAGaAWXO8 pcKo/CPN9cicBY7KqmHemN6BpMLnucE= From: David Hildenbrand To: qemu-devel@nongnu.org Subject: [PATCH v1 04/13] numa: Make all callbacks of ram block notifiers optional Date: Wed, 19 Feb 2020 17:17:16 +0100 Message-Id: <20200219161725.115218-5-david@redhat.com> In-Reply-To: <20200219161725.115218-1-david@redhat.com> References: <20200219161725.115218-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-MC-Unique: w2FeIq_HP8S8yURxRV0JZg-1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 205.139.110.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Eduardo Habkost , Juan Quintela , David Hildenbrand , "Dr . David Alan Gilbert" , Peter Xu , Paolo Bonzini , Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Let's make add/remove optional. We want to introduce a RAM block notifier for RAM migration, that's only interested in resizes. Cc: Richard Henderson Cc: Paolo Bonzini Cc: Eduardo Habkost Cc: Marcel Apfelbaum Cc: Peter Xu Signed-off-by: David Hildenbrand Reviewed-by: Peter Xu --- hw/core/numa.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/hw/core/numa.c b/hw/core/numa.c index e28ad24fcd..4270b268c8 100644 --- a/hw/core/numa.c +++ b/hw/core/numa.c @@ -915,8 +915,11 @@ static int ram_block_notify_add_single(RAMBlock *rb, v= oid *opaque) void ram_block_notifier_add(RAMBlockNotifier *n) { QLIST_INSERT_HEAD(&ram_list.ramblock_notifiers, n, next); + /* Notify about all existing ram blocks. */ - qemu_ram_foreach_block(ram_block_notify_add_single, n); + if (n->ram_block_added) { + qemu_ram_foreach_block(ram_block_notify_add_single, n); + } } =20 void ram_block_notifier_remove(RAMBlockNotifier *n) @@ -929,7 +932,9 @@ void ram_block_notify_add(void *host, size_t size, size= _t max_size) RAMBlockNotifier *notifier; =20 QLIST_FOREACH(notifier, &ram_list.ramblock_notifiers, next) { - notifier->ram_block_added(notifier, host, size, max_size); + if (notifier->ram_block_added) { + notifier->ram_block_added(notifier, host, size, max_size); + } } } =20 @@ -938,7 +943,9 @@ void ram_block_notify_remove(void *host, size_t size, s= ize_t max_size) RAMBlockNotifier *notifier; =20 QLIST_FOREACH(notifier, &ram_list.ramblock_notifiers, next) { - notifier->ram_block_removed(notifier, host, size, max_size); + if (notifier->ram_block_removed) { + notifier->ram_block_removed(notifier, host, size, max_size); + } } } =20 --=20 2.24.1