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=-0.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no 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 BF2CAC352BE for ; Fri, 17 Apr 2020 15:02:09 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 83EFD20857 for ; Fri, 17 Apr 2020 15:02:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="OotAlMJE" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 83EFD20857 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 063E58E0029; Fri, 17 Apr 2020 11:02:09 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id F30CE8E0023; Fri, 17 Apr 2020 11:02:08 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id BD5EF8E0029; Fri, 17 Apr 2020 11:02:08 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id A3F8A8E0023 for ; Fri, 17 Apr 2020 11:02:08 -0400 (EDT) Received: from smtpin14.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 68257181AEF3E for ; Fri, 17 Apr 2020 15:02:08 +0000 (UTC) X-FDA: 76717662336.14.copy44_69f396a5e0429 X-HE-Tag: copy44_69f396a5e0429 X-Filterd-Recvd-Size: 2876 Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [205.139.110.120]) by imf21.hostedemail.com (Postfix) with ESMTP for ; Fri, 17 Apr 2020 15:02:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1587135727; 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; bh=zAUQ1fejVgK8xdiFLC8Kzo6yupRq84Rn11njknDDfkc=; b=OotAlMJETxPt9KIPFVhd4AOsVRSMq29/PVkTkjyC9xHqo43R9l6+W63RCa5kStqCTG4PM1 0kGBYbS0537F4w11OHPWa/ZCppSpL5R9l8tW8kftGdYZC8ScBHT3JYAkzvvdPoQMOxapGZ xOSitaEARzZQ7drDjNrDbruxLhL3hfo= 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-86-qKoBkKQ3NGO4Eh09TUhtLQ-1; Fri, 17 Apr 2020 11:01:59 -0400 X-MC-Unique: qKoBkKQ3NGO4Eh09TUhtLQ-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id A34BE800D5C; Fri, 17 Apr 2020 15:01:57 +0000 (UTC) Received: from t480s.redhat.com (ovpn-114-107.ams2.redhat.com [10.36.114.107]) by smtp.corp.redhat.com (Postfix) with ESMTP id BC3C8A09B9; Fri, 17 Apr 2020 15:01:52 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, linux-s390@vger.kernel.org, David Hildenbrand , Christian Borntraeger , Heiko Carstens , Kirill Smelkov , Michael Holzheu , Philipp Rudo , Vasily Gorbik Subject: [PATCH RFC 0/2] s390/mm: don't set ARCH_KEEP_MEMBLOCK Date: Fri, 17 Apr 2020 17:01:49 +0200 Message-Id: <20200417150151.17239-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Looking into why we still create memblocks for hotplugged memory (via add_memory()), I discovered that we might not need ARCH_KEEP_MEMBLOCK on s390x after all. After [1] we will no longer create memblocks for hotplugged memory in case of !CONFIG_ARCH_KEEP_MEMBLOCK. With this series, the same will apply to standby memory on s390x, added via add_memory(). [1] https://lkml.kernel.org/r/20200416104707.20219-1-david@redhat.com David Hildenbrand (2): s390/zcore: traverse resources instead of memblocks s390/mm: don't set ARCH_KEEP_MEMBLOCK arch/s390/Kconfig | 1 - drivers/s390/char/zcore.c | 61 ++++++++++++++++++++++++++++++--------- 2 files changed, 48 insertions(+), 14 deletions(-) --=20 2.25.1