From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-f200.google.com (mail-qk0-f200.google.com [209.85.220.200]) by kanga.kvack.org (Postfix) with ESMTP id 7DA596B026F for ; Fri, 20 Jul 2018 08:34:41 -0400 (EDT) Received: by mail-qk0-f200.google.com with SMTP id q3-v6so9288771qki.4 for ; Fri, 20 Jul 2018 05:34:41 -0700 (PDT) Received: from mx1.redhat.com (mx3-rdu2.redhat.com. [66.187.233.73]) by mx.google.com with ESMTPS id l21-v6si1727536qtf.198.2018.07.20.05.34.40 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 20 Jul 2018 05:34:40 -0700 (PDT) From: David Hildenbrand 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> Sender: owner-linux-mm@kvack.org List-ID: 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 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