From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753642AbbE1Lyr (ORCPT ); Thu, 28 May 2015 07:54:47 -0400 Received: from e06smtp12.uk.ibm.com ([195.75.94.108]:56542 "EHLO e06smtp12.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754130AbbE1LxG (ORCPT ); Thu, 28 May 2015 07:53:06 -0400 From: Dominik Dingel To: linux-kernel@vger.kernel.org Cc: Russell King , Catalin Marinas , Will Deacon , Tony Luck , Fenghua Yu , James Hogan , Ralf Baechle , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Martin Schwidefsky , Heiko Carstens , linux390@de.ibm.com, "David S. Miller" , Chris Metcalf , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , x86@kernel.org, Andrew Morton , Zhang Zhen , Dominik Dingel , David Rientjes , "Aneesh Kumar K.V" , Nathan Lynch , Christian Borntraeger , Andy Lutomirski , Michael Holzheu , Hugh Dickins , Naoya Horiguchi , Paolo Bonzini , "Jason J. Herne" , Davidlohr Bueso , "Kirill A. Shutemov" , Luiz Capitulino , Mike Kravetz , linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org, linux-metag@vger.kernel.org, linux-mips@linux-mips.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 0/5] Remove s390 sw-emulated hugepages and cleanup Date: Thu, 28 May 2015 13:52:32 +0200 Message-Id: <1432813957-46874-1-git-send-email-dingel@linux.vnet.ibm.com> X-Mailer: git-send-email 2.3.7 X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 15052811-0009-0000-0000-00000453AA2D Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi everyone, there is a potential bug with KVM and hugetlbfs if the hardware does not support hugepages (EDAT1). We fix this by making EDAT1 a hard requirement for hugepages and therefore removing and simplifying code. As s390, with the sw-emulated hugepages, was the only user of arch_prepare/release_hugepage I also removed theses calls from common and other architecture code. Thanks, Dominik Dominik Dingel (5): s390/mm: make hugepages_supported a boot time decision mm/hugetlb: remove unused arch hook prepare/release_hugepage mm/hugetlb: remove arch_prepare/release_hugepage from arch headers s390/hugetlb: remove dead code for sw emulated huge pages s390/mm: forward check for huge pmds to pmd_large() arch/arm/include/asm/hugetlb.h | 9 ------ arch/arm64/include/asm/hugetlb.h | 9 ------ arch/ia64/include/asm/hugetlb.h | 9 ------ arch/metag/include/asm/hugetlb.h | 9 ------ arch/mips/include/asm/hugetlb.h | 9 ------ arch/powerpc/include/asm/hugetlb.h | 9 ------ arch/s390/include/asm/hugetlb.h | 3 -- arch/s390/include/asm/page.h | 8 ++--- arch/s390/kernel/setup.c | 2 ++ arch/s390/mm/hugetlbpage.c | 65 +++----------------------------------- arch/s390/mm/pgtable.c | 2 ++ arch/sh/include/asm/hugetlb.h | 9 ------ arch/sparc/include/asm/hugetlb.h | 9 ------ arch/tile/include/asm/hugetlb.h | 9 ------ arch/x86/include/asm/hugetlb.h | 9 ------ mm/hugetlb.c | 10 ------ 16 files changed, 12 insertions(+), 168 deletions(-) -- 2.3.7