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 X-Spam-Level: X-Spam-Status: No, score=-7.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 89208C433E1 for ; Wed, 1 Jul 2020 14:18:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 69BCD207BB for ; Wed, 1 Jul 2020 14:18:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="QO5yQN1p" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731544AbgGAOS4 (ORCPT ); Wed, 1 Jul 2020 10:18:56 -0400 Received: from us-smtp-2.mimecast.com ([205.139.110.61]:31499 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1731528AbgGAOSt (ORCPT ); Wed, 1 Jul 2020 10:18:49 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1593613128; 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=OxgbA78Isty5LjQU/goDcTyWCLKH0Y+Zl49XxrxsnYY=; b=QO5yQN1po1hfOm8qbp9sHnztXYe/IGUYwj9fF0z0dYKNQBK4PkVHzxRef0DhYXmHI5VdEg Mzl+U468bJF/d1w748TS/B3wz4sD4AsCXo4P79bw5VcdJK8VPLCq10YF6q6IRkX3Krm5mZ ooCbxqFFqOK55tFNxVIaQQQb6RDhbaE= 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-270-CENe1AYBMuGvlkWzP0lwXQ-1; Wed, 01 Jul 2020 10:18:44 -0400 X-MC-Unique: CENe1AYBMuGvlkWzP0lwXQ-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id EBE58A0BDF; Wed, 1 Jul 2020 14:18:41 +0000 (UTC) Received: from t480s.redhat.com (ovpn-112-52.ams2.redhat.com [10.36.112.52]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6F0B05C1C5; Wed, 1 Jul 2020 14:18:38 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: linux-s390@vger.kernel.org, linux-mm@kvack.org, David Hildenbrand , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Philipp Rudo , Michael Holzheu , Mike Rapoport , Andrew Morton Subject: [PATCH v2 2/2] s390/mm: don't set ARCH_KEEP_MEMBLOCK Date: Wed, 1 Jul 2020 16:18:30 +0200 Message-Id: <20200701141830.18749-3-david@redhat.com> In-Reply-To: <20200701141830.18749-1-david@redhat.com> References: <20200701141830.18749-1-david@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit 50be63450728 ("s390/mm: Convert bootmem to memblock") mentions "The original bootmem allocator is getting replaced by memblock. To cover the needs of the s390 kdump implementation the physical memory list is used." As we can now reference "physmem" managed in the memblock allocator after init even without ARCH_KEEP_MEMBLOCK, and s390x does no longer need other memblock metadata after boot (esp., the zcore memmap device that used it got removed), we can stop setting ARCH_KEEP_MEMBLOCK. With this change, we no longer create memblocks for standby/hotplugged memory (added via add_memory()) and free up memblock metdata (except physmem) after boot. Cc: Heiko Carstens Cc: Vasily Gorbik Cc: Christian Borntraeger Cc: Philipp Rudo Cc: Michael Holzheu Cc: Mike Rapoport Cc: Andrew Morton Signed-off-by: David Hildenbrand --- arch/s390/Kconfig | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index c7d7ede6300c5..7697a1f8e819a 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -102,7 +102,6 @@ config S390 select ARCH_INLINE_WRITE_UNLOCK_BH select ARCH_INLINE_WRITE_UNLOCK_IRQ select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE - select ARCH_KEEP_MEMBLOCK select ARCH_STACKWALK select ARCH_SUPPORTS_ATOMIC_RMW select ARCH_SUPPORTS_NUMA_BALANCING -- 2.26.2