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=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,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 14F81ECDFB8 for ; Fri, 20 Jul 2018 12:34:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C74FB20833 for ; Fri, 20 Jul 2018 12:34:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C74FB20833 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388833AbeGTNWn (ORCPT ); Fri, 20 Jul 2018 09:22:43 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:58424 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2388096AbeGTNWm (ORCPT ); Fri, 20 Jul 2018 09:22:42 -0400 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 91BA1401DEC0; Fri, 20 Jul 2018 12:34:40 +0000 (UTC) Received: from t460s.redhat.com (ovpn-116-17.ams2.redhat.com [10.36.116.17]) by smtp.corp.redhat.com (Postfix) with ESMTP id 94C58111AF1D; Fri, 20 Jul 2018 12:34:38 +0000 (UTC) From: David Hildenbrand To: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, David Hildenbrand , Andrew Morton , Dave Young , Baoquan He , Hari Bathini , "Kirill A. Shutemov" , Michal Hocko Subject: [PATCH v1 2/2] kdump: include PG_reserved value in VMCOREINFO Date: Fri, 20 Jul 2018 14:34:22 +0200 Message-Id: <20180720123422.10127-3-david@redhat.com> In-Reply-To: <20180720123422.10127-1-david@redhat.com> References: <20180720123422.10127-1-david@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.3 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Fri, 20 Jul 2018 12:34:40 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Fri, 20 Jul 2018 12:34:40 +0000 (UTC) for IP:'10.11.54.3' DOMAIN:'int-mx03.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'david@redhat.com' RCPT:'' Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org PG_reserved pages should never be touched by enybody except their owner. Let's allow dumping tools to skip these pages. Cc: Andrew Morton Cc: Dave Young Cc: Baoquan He Cc: Hari Bathini Cc: "Kirill A. Shutemov" Cc: Michal Hocko Signed-off-by: David Hildenbrand --- kernel/crash_core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/crash_core.c b/kernel/crash_core.c index b66aced5e8c2..ab216accf96a 100644 --- a/kernel/crash_core.c +++ b/kernel/crash_core.c @@ -451,6 +451,7 @@ static int __init crash_save_vmcoreinfo_init(void) log_buf_vmcoreinfo_setup(); VMCOREINFO_LENGTH(free_area.free_list, MIGRATE_TYPES); VMCOREINFO_NUMBER(NR_FREE_PAGES); + VMCOREINFO_NUMBER(PG_reserved); VMCOREINFO_NUMBER(PG_lru); VMCOREINFO_NUMBER(PG_private); VMCOREINFO_NUMBER(PG_swapcache); -- 2.17.1