Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754076AbbFDRPL (ORCPT ); Thu, 4 Jun 2015 13:15:11 -0400 Received: from mga01.intel.com ([192.55.52.88]:29448 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753872AbbFDRPF convert rfc822-to-8bit (ORCPT ); Thu, 4 Jun 2015 13:15:05 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.13,553,1427785200"; d="scan'208";a="705413420" 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 12/12] mm: let slab/slub/slob use mirrored memory Thread-Topic: [RFC PATCH 12/12] mm: let slab/slub/slob use mirrored memory Thread-Index: AQHQnsd6ToEvIzgwgECU0AhMFLIK0J2clPjw Date: Thu, 4 Jun 2015 17:14:38 +0000 Message-ID: <3908561D78D1C84285E8C5FCA982C28F32A8D5D7@ORSMSX114.amr.corp.intel.com> References: <55704A7E.5030507@huawei.com> <55704D15.3030309@huawei.com> In-Reply-To: <55704D15.3030309@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: 704 Lines: 19 - page = alloc_pages_exact_node(nodeid, flags | __GFP_NOTRACK, cachep->gfporder); + page = alloc_pages_exact_node(nodeid, flags | __GFP_NOTRACK | __GFP_MIRROR, + cachep->gfporder); Set some global "got_mirror"[*] if we have any mirrored memory to __GFP_MIRROR, else to 0. then page = alloc_pages_exact_node(nodeid, flags | __GFP_NOTRACK | got_mirror, cachep->gfporder); -Tony [*] Someone will suggest a better name. I'm bad at picking names. -- 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/