From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f176.google.com (mail-pf0-f176.google.com [209.85.192.176]) by kanga.kvack.org (Postfix) with ESMTP id 7BF016B025A for ; Wed, 9 Mar 2016 07:12:11 -0500 (EST) Received: by mail-pf0-f176.google.com with SMTP id u190so9808078pfb.3 for ; Wed, 09 Mar 2016 04:12:11 -0800 (PST) Received: from e23smtp03.au.ibm.com (e23smtp03.au.ibm.com. [202.81.31.145]) by mx.google.com with ESMTPS id o65si12153241pfo.226.2016.03.09.04.12.06 for (version=TLS1_2 cipher=AES128-SHA bits=128/128); Wed, 09 Mar 2016 04:12:07 -0800 (PST) Received: from localhost by e23smtp03.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 9 Mar 2016 22:12:04 +1000 Received: from d23relay09.au.ibm.com (d23relay09.au.ibm.com [9.185.63.181]) by d23dlp02.au.ibm.com (Postfix) with ESMTP id 2B23A2BB0059 for ; Wed, 9 Mar 2016 23:12:01 +1100 (EST) Received: from d23av01.au.ibm.com (d23av01.au.ibm.com [9.190.234.96]) by d23relay09.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u29CBqEp61603928 for ; Wed, 9 Mar 2016 23:12:00 +1100 Received: from d23av01.au.ibm.com (localhost [127.0.0.1]) by d23av01.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u29CBSAr022054 for ; Wed, 9 Mar 2016 23:11:28 +1100 From: Anshuman Khandual Subject: [RFC 8/9] powerpc/mm: Enable HugeTLB page migration Date: Wed, 9 Mar 2016 17:40:49 +0530 Message-Id: <1457525450-4262-8-git-send-email-khandual@linux.vnet.ibm.com> In-Reply-To: <1457525450-4262-1-git-send-email-khandual@linux.vnet.ibm.com> References: <1457525450-4262-1-git-send-email-khandual@linux.vnet.ibm.com> Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Cc: hughd@google.com, kirill@shutemov.name, n-horiguchi@ah.jp.nec.com, akpm@linux-foundation.org, mgorman@techsingularity.net, aneesh.kumar@linux.vnet.ibm.com, mpe@ellerman.id.au This change enables HugeTLB page migration for PPC64_BOOK3S systems for HugeTLB pages implemented at the PMD level. It enables the kernel configuration option ARCH_ENABLE_HUGEPAGE_MIGRATION which turns on 'hugepage_migration_supported' function which is checked for feature presence during migration. Signed-off-by: Anshuman Khandual --- arch/powerpc/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index c6920bb..cefc368 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -86,6 +86,10 @@ config GENERIC_HWEIGHT config ARCH_HAS_DMA_SET_COHERENT_MASK bool +config ARCH_ENABLE_HUGEPAGE_MIGRATION + def_bool y + depends on PPC_BOOK3S_64 && HUGETLB_PAGE && MIGRATION + config PPC bool default y -- 2.1.0 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org