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Violators will be prosecuted; Tue, 6 Feb 2018 16:50:16 -0000 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w16GoGVO43319514; Tue, 6 Feb 2018 16:50:16 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 3EA7911C054; Tue, 6 Feb 2018 16:43:39 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 3FEAA11C04A; Tue, 6 Feb 2018 16:43:38 +0000 (GMT) Received: from nimbus.lab.toulouse-stg.fr.ibm.com (unknown [9.101.4.33]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Tue, 6 Feb 2018 16:43:38 +0000 (GMT) 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 v7 02/24] x86/mm: Define CONFIG_SPECULATIVE_PAGE_FAULT Date: Tue, 6 Feb 2018 17:49:48 +0100 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1517935810-31177-1-git-send-email-ldufour@linux.vnet.ibm.com> References: <1517935810-31177-1-git-send-email-ldufour@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18020616-0008-0000-0000-000004CA06D1 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18020616-0009-0000-0000-00001E5DB460 Message-Id: <1517935810-31177-3-git-send-email-ldufour@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2018-02-06_07:,, 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-1802060212 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Introduce CONFIG_SPECULATIVE_PAGE_FAULT which turns on the Speculative Page Fault handler when building for 64bits with SMP. Cc: Thomas Gleixner Signed-off-by: Laurent Dufour --- arch/x86/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index d9878f1f3bac..cb3a0e8dbf27 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -29,6 +29,7 @@ config X86_64 select HAVE_ARCH_SOFT_DIRTY select MODULES_USE_ELF_RELA select X86_DEV_DMA_OPS + select SPECULATIVE_PAGE_FAULT if SMP # # Arch settings -- 2.7.4