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=-6.9 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 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 11B1AC38A2B for ; Fri, 17 Apr 2020 15:02:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D677320857 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="UKoJNQCK" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728392AbgDQPCI (ORCPT ); Fri, 17 Apr 2020 11:02:08 -0400 Received: from us-smtp-2.mimecast.com ([207.211.31.81]:58526 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728271AbgDQPCH (ORCPT ); Fri, 17 Apr 2020 11:02:07 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1587135726; 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=xefEX7Y1nMqJoMT6fqIG0MZlY8K0HkA37+fDXJufNeQ=; b=UKoJNQCK8y6B2wvEuygRGp8cv3WloIoWCGmrhKU4BO6MSfumpwDqQ05zdU3d/kd00J3W0a BgsCC8/lu/VGTrqxJK6etw+t3moM3WbdnHZ/v5QpeTLVFwjkT1CrsU342l7eg/OcghBgol Wk3NOxwme9gh/iR1mUylfkGYV8aE82g= 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-469-rVvU9jVkNO2o7A1Qd4PeoQ-1; Fri, 17 Apr 2020 11:02:03 -0400 X-MC-Unique: rVvU9jVkNO2o7A1Qd4PeoQ-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 531888018A7; Fri, 17 Apr 2020 15:02:02 +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 5D3E59F9B5; Fri, 17 Apr 2020 15:02:00 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, linux-s390@vger.kernel.org, David Hildenbrand , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Philipp Rudo , Michael Holzheu Subject: [PATCH RFC 2/2] s390/mm: don't set ARCH_KEEP_MEMBLOCK Date: Fri, 17 Apr 2020 17:01:51 +0200 Message-Id: <20200417150151.17239-3-david@redhat.com> In-Reply-To: <20200417150151.17239-1-david@redhat.com> References: <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 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." zcore was converted to use resources instead of memblocks. memblock_discard() will *not* mess with "physmem", only with "memory" and "reserved" memblocks. So, that data will stay after early boot, to be used in arch/s390/kernel/crash_dump.c to create the ELF header from inside the 2nd (a.k.a. dumping) kernel. We no longer need ARCH_KEEP_MEMBLOCK. Cc: Heiko Carstens Cc: Vasily Gorbik Cc: Christian Borntraeger Cc: Philipp Rudo Cc: Michael Holzheu 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 8206b2c19aa8..122bf4cad8a5 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 --=20 2.25.1