From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752631AbeCMSKU (ORCPT ); Tue, 13 Mar 2018 14:10:20 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:41066 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751529AbeCMSKT (ORCPT ); Tue, 13 Mar 2018 14:10:19 -0400 From: Laurent Dufour To: paulmck@linux.vnet.ibm.com, peterz@infradead.org, akpm@linux-foundation.org, kirill@shutemov.name, ak@linux.intel.com, mhocko@kernel.org, dave@stgolabs.net, jack@suse.cz, Matthew Wilcox , benh@kernel.crashing.org, mpe@ellerman.id.au, paulus@samba.org, Thomas Gleixner , Ingo Molnar , hpa@zytor.com, Will Deacon , Sergey Senozhatsky , Andrea Arcangeli , Alexei Starovoitov , kemi.wang@intel.com, sergey.senozhatsky.work@gmail.com, Daniel Jordan Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, haren@linux.vnet.ibm.com, khandual@linux.vnet.ibm.com, npiggin@gmail.com, bsingharora@gmail.com, Tim Chen , linuxppc-dev@lists.ozlabs.org, x86@kernel.org Subject: [PATCH v9 01/24] mm: Introduce CONFIG_SPECULATIVE_PAGE_FAULT Date: Tue, 13 Mar 2018 18:59:31 +0100 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1520963994-28477-1-git-send-email-ldufour@linux.vnet.ibm.com> References: <1520963994-28477-1-git-send-email-ldufour@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18031318-0012-0000-0000-000005BE006B X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18031317-0013-0000-0000-0000193A0055 Message-Id: <1520963994-28477-2-git-send-email-ldufour@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2018-03-13_08:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1803130203 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This configuration variable will be used to build the code needed to handle speculative page fault. By default it is turned off, and activated depending on architecture support. Suggested-by: Thomas Gleixner Signed-off-by: Laurent Dufour --- mm/Kconfig | 3 +++ 1 file changed, 3 insertions(+) diff --git a/mm/Kconfig b/mm/Kconfig index abefa573bcd8..07c566c88faf 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -759,3 +759,6 @@ config GUP_BENCHMARK performance of get_user_pages_fast(). See tools/testing/selftests/vm/gup_benchmark.c + +config SPECULATIVE_PAGE_FAULT + bool -- 2.7.4