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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED 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 D8CFBC47E49 for ; Mon, 21 Oct 2019 17:24:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AF5DC20873 for ; Mon, 21 Oct 2019 17:24:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="InW3dMJp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728194AbfJURYK (ORCPT ); Mon, 21 Oct 2019 13:24:10 -0400 Received: from us-smtp-2.mimecast.com ([205.139.110.61]:28545 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726819AbfJURYK (ORCPT ); Mon, 21 Oct 2019 13:24:10 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1571678648; 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; bh=tU7OuvHvFG+jtNsohsW1UDt65sDgAhzQIZb5QOHjnxk=; b=InW3dMJpMHohtxFjyCAzghiTCUWFWLk1v9dW0sijDgmuDaMtEsZEZUCatIMf/RlO43kimA 4mtObUyxMGWXB9i6cmUkk3JBk8wyob0TOOojBAIocfz/4+CqqgcMzpQcSuqVtF0ZRo8PN8 ewVrKCEBp6Y4gCeOsY3S7Ep3A0q2D38= 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-244-ZILDmOTuPt2Q4a3Yd9I06Q-1; Mon, 21 Oct 2019 13:24:03 -0400 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 4CE96800D41; Mon, 21 Oct 2019 17:24:01 +0000 (UTC) Received: from t460s.redhat.com (ovpn-116-42.ams2.redhat.com [10.36.116.42]) by smtp.corp.redhat.com (Postfix) with ESMTP id B3F7160856; Mon, 21 Oct 2019 17:23:54 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, David Hildenbrand , Alexander Duyck , Andrew Morton , Anshuman Khandual , Dan Williams , Mel Gorman , Michal Hocko , Mike Rapoport , Mike Rapoport , Oscar Salvador , Pavel Tatashin , Pavel Tatashin , Pingfan Liu , Qian Cai , Vlastimil Babka , Wei Yang Subject: [PATCH v2 0/2] mm: Memory offlining + page isolation cleanups Date: Mon, 21 Oct 2019 19:23:51 +0200 Message-Id: <20191021172353.3056-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-MC-Unique: ZILDmOTuPt2Q4a3Yd9I06Q-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=WINDOWS-1252 Content-Transfer-Encoding: quoted-printable Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Two cleanups that popped up while working on (and discussing) virtio-mem: https://lkml.org/lkml/2019/9/19/463 Tested with DIMMs on x86. As discussed with michal in v1, I'll soon look into removing the use of PG_reserved during memory onlining completely - most probably disallowing to offline memory blocks with holes, cleaning up the onlining+offlining code. v1 -> v2: - "mm/page_alloc.c: Don't set pages PageReserved() when offlining" -- Fixup one comment - "mm/page_isolation.c: Convert SKIP_HWPOISON to MEMORY_OFFLINE" -- Use parenthesis around checks - Added ACKs David Hildenbrand (2): mm/page_alloc.c: Don't set pages PageReserved() when offlining mm/page_isolation.c: Convert SKIP_HWPOISON to MEMORY_OFFLINE include/linux/page-isolation.h | 4 ++-- mm/memory_hotplug.c | 12 ++++++------ mm/page_alloc.c | 9 +++------ mm/page_isolation.c | 12 ++++++------ 4 files changed, 17 insertions(+), 20 deletions(-) --=20 2.21.0