Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754197AbbFDRBy (ORCPT ); Thu, 4 Jun 2015 13:01:54 -0400 Received: from mga02.intel.com ([134.134.136.20]:63217 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754021AbbFDRBn convert rfc822-to-8bit (ORCPT ); Thu, 4 Jun 2015 13:01:43 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,553,1427785200"; d="scan'208";a="741043605" From: "Luck, Tony" To: Xishi Qiu , Andrew Morton , "nao.horiguchi@gmail.com" , Yinghai Lu , "H. Peter Anvin" , Thomas Gleixner , "mingo@elte.hu" , Xiexiuqi , Hanjun Guo CC: Linux MM , LKML Subject: RE: [RFC PATCH 08/12] mm: use mirrorable to switch allocate mirrored memory Thread-Topic: [RFC PATCH 08/12] mm: use mirrorable to switch allocate mirrored memory Thread-Index: AQHQnscS4H0JE7Iiy0qL37rq0YeH7Z2ckfVw Date: Thu, 4 Jun 2015 17:01:08 +0000 Message-ID: <3908561D78D1C84285E8C5FCA982C28F32A8D5A2@ORSMSX114.amr.corp.intel.com> References: <55704A7E.5030507@huawei.com> <55704C79.5060608@huawei.com> In-Reply-To: <55704C79.5060608@huawei.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.22.254.138] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 591 Lines: 13 > Add a new interface in path /proc/sys/vm/mirrorable. When set to 1, it means > we should allocate mirrored memory for both user and kernel processes. With some "to be defined later" mechanism for how the user requests mirror vs. not mirror. Plus some capability/ulimit pieces that restrict who can do this and how much they can get??? -Tony -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/