From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:28976 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726252AbgFZQcX (ORCPT ); Fri, 26 Jun 2020 12:32:23 -0400 Date: Fri, 26 Jun 2020 18:32:15 +0200 From: Heiko Carstens Subject: Re: [PATCH RFC 2/2] s390/mm: don't set ARCH_KEEP_MEMBLOCK Message-ID: <20200626163215.GA4268@osiris> References: <20200417150151.17239-1-david@redhat.com> <20200417150151.17239-3-david@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200417150151.17239-3-david@redhat.com> Sender: linux-s390-owner@vger.kernel.org List-ID: To: David Hildenbrand Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-s390@vger.kernel.org, Vasily Gorbik , Christian Borntraeger , Philipp Rudo , Michael Holzheu On Fri, Apr 17, 2020 at 05:01:51PM +0200, David Hildenbrand wrote: > 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(-) Applied, thanks!