Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp7609477imu; Mon, 3 Dec 2018 16:05:13 -0800 (PST) X-Google-Smtp-Source: AFSGD/XtXIuexd0BBn7h3tsx2FIxw/HmGS0Ghyd0VG78/b5VukfdKJnopsAFCzir4LO9Vs7Tw3VF X-Received: by 2002:a17:902:7107:: with SMTP id a7mr17785684pll.290.1543881913652; Mon, 03 Dec 2018 16:05:13 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1543881913; cv=none; d=google.com; s=arc-20160816; b=x+ZA9abf3yIq/Mj5AD6E43bxNRNldsrYnqVh/zYzGY6nMtZnpDolEf0kaT8NHh/U9F b9jAfCXmZNPO/ms7Gx2+7VxqIZgHj0vEOFoR8DefvxRAuW6aSHSenRYiiG8/xKTFAB7w aRrW/2t3H36ZVxt7AZi39dAykxH8k3ixwwy5m+oc3fptY9Don1L9TJ3QDZz4Vm7eRtTV saYeJM8opJOLeii6ZNO0h71agQq5EeGbeEOHI12a+jbBgAWhQmEe8rY6X6MxTkIp/W+w d1P6KPeiId/BiXaGcwERhCpmx1tbINbZNVb+kOvjFnZ6Dth1MDe6fiR9+BxUKRzeXk2Z pMxQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:content-transfer-encoding :content-id:content-language:accept-language:in-reply-to:references :message-id:date:thread-index:thread-topic:subject:cc:to:from; bh=FOYg5lGhK+7qYQIYOrITcmDx6PI8fBQ+Gg/Bdfab9+c=; b=mP9tYgxVncAM/zlqO735yv5Xw/RqQ/MdXFFtl8qlNNiJYAXej31W6YgiLjPYHL+saB i9TG4l4KMY4UYSUdNym05o0NQn64bT/tg8OD9zeliZjZ9eOLoUketApAUmjkyDpFXppV 2ITes3AXFJg+8MlUTBOEtb2pg+6Q4SF8Y7+ajvpupwAZrm8MG/Dxt1GO7wBsWNgXgQFS HmmvPgkmFb1k7IsClPQW1FEmoUAXE+nclE8SriPQh99UaVP4zUSc5oYGnGs+2ytGlAr6 xZYoqOXMQzMa2W5cbrfRTzmshSNAmYbFG1ntfLmja8JQqIYRcOCtdSRnAB7AwLLXNBqa ZuLg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id i62si13998134pgd.556.2018.12.03.16.04.58; Mon, 03 Dec 2018 16:05:13 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726180AbeLDAEX (ORCPT + 99 others); Mon, 3 Dec 2018 19:04:23 -0500 Received: from mga11.intel.com ([192.55.52.93]:1266 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725903AbeLDAEW (ORCPT ); Mon, 3 Dec 2018 19:04:22 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 03 Dec 2018 16:04:22 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,312,1539673200"; d="scan'208";a="115668126" Received: from orsmsx106.amr.corp.intel.com ([10.22.225.133]) by orsmga001.jf.intel.com with ESMTP; 03 Dec 2018 16:04:21 -0800 Received: from orsmsx112.amr.corp.intel.com ([169.254.3.8]) by ORSMSX106.amr.corp.intel.com ([169.254.1.161]) with mapi id 14.03.0415.000; Mon, 3 Dec 2018 16:04:21 -0800 From: "Edgecombe, Rick P" To: "linux-arch@vger.kernel.org" CC: "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "Dock, Deneen T" , "daniel@iogearbox.net" , "rostedt@goodmis.org" , "ast@kernel.org" , "jeyu@kernel.org" , "linux-mm@kvack.org" , "jannh@google.com" , "ard.biesheuvel@linaro.org" , "kristen@linux.intel.com" , "akpm@linux-foundation.org" , "will.deacon@arm.com" , "mingo@redhat.com" , "luto@kernel.org" , "kernel-hardening@lists.openwall.com" , "Hansen, Dave" , "mhiramat@kernel.org" , "naveen.n.rao@linux.vnet.ibm.com" , "davem@davemloft.net" , "Keshavamurthy, Anil S" Subject: Re: [PATCH 1/2] vmalloc: New flag for flush before releasing pages Thread-Topic: [PATCH 1/2] vmalloc: New flag for flush before releasing pages Thread-Index: AQHUhrIVlTqKMmCRwUWBsYfr2au/NaVuQxqA Date: Tue, 4 Dec 2018 00:04:21 +0000 Message-ID: References: <20181128000754.18056-1-rick.p.edgecombe@intel.com> <20181128000754.18056-2-rick.p.edgecombe@intel.com> In-Reply-To: <20181128000754.18056-2-rick.p.edgecombe@intel.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.54.75.141] Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org SXQgbG9va3MgbGlrZSB0aGlzIG5ldyBmbGFnIGlzIGluIGxpbnV4LW5leHQgbm93LiBBcyBJIGFt IHJlYWRpbmcgaXQsIHRoZXNlDQphcmNoaXRlY3R1cmVzIGhhdmUgYSBtb2R1bGVfYWxsb2MgdGhh dCB1c2VzIHNvbWUgc29ydCBvZiBleGVjdXRhYmxlIGZsYWcgYW5kDQphcmUgbm90IHVzaW5nIHRo ZSBkZWZhdWx0IG1vZHVsZV9hbGxvYyB3aGljaCBpcyBhbHJlYWR5IGNvdmVyZWQsIGFuZCBzbyBt YXkgbmVlZA0KaXQgcGx1Z2dlZCBpbjoNCmFybQ0KYXJtNjQNCnBhcmlzYw0KczM5MA0KdW5pY29y ZTMyDQoNClRoYW5rcywNCg0KUmljaw0KDQpPbiBUdWUsIDIwMTgtMTEtMjcgYXQgMTY6MDcgLTA4 MDAsIFJpY2sgRWRnZWNvbWJlIHdyb3RlOg0KPiBTaW5jZSB2ZnJlZSB3aWxsIGxhemlseSBmbHVz aCB0aGUgVExCLCBidXQgbm90IGxhemlseSBmcmVlIHRoZSB1bmRlcmx5aW5nDQo+IHBhZ2VzLA0K PiBpdCBvZnRlbiBsZWF2ZXMgc3RhbGUgVExCIGVudHJpZXMgdG8gZnJlZWQgcGFnZXMgdGhhdCBj b3VsZCBnZXQgcmUtdXNlZC4gVGhpcw0KPiBpcw0KPiB1bmRlc2lyYWJsZSBmb3IgY2FzZXMgd2hl cmUgdGhlIG1lbW9yeSBiZWluZyBmcmVlZCBoYXMgc3BlY2lhbCBwZXJtaXNzaW9ucw0KPiBzdWNo DQo+IGFzIGV4ZWN1dGFibGUuDQo+IA0KPiBIYXZpbmcgY2FsbGVycyBmbHVzaCB0aGUgVExCIGFm dGVyIGNhbGxpbmcgdmZyZWUgc3RpbGwgbGVhdmVzIGEgd2luZG93IHdoZXJlDQo+IHRoZSBwYWdl cyBhcmUgZnJlZWQsIGJ1dCB0aGUgVExCIGVudHJ5IHJlbWFpbnMuIEFsc28gdGhlIGVudGlyZSBv cGVyYXRpb24gY2FuDQo+IGJlDQo+IGRlZmVycmVkIGlmIHRoZSB2ZnJlZSBpcyBjYWxsZWQgZnJv bSBhbiBpbnRlcnJ1cHQgYW5kIHNvIGEgVExCIGZsdXNoIGFmdGVyDQo+IGNhbGxpbmcgdmZyZWUg d291bGQgbWlzcyB0aGUgZW50aXJlIG9wZXJhdGlvbi4gU28gaW4gb3JkZXIgdG8gc3VwcG9ydCB0 aGlzIHVzZQ0KPiBjYXNlLCBhIG5ldyBmbGFnIFZNX0lNTUVESUFURV9VTk1BUCBpcyBhZGRlZCwg dGhhdCB3aWxsIGNhdXNlIHRoZSBmcmVlDQo+IG9wZXJhdGlvbg0KPiB0byB0YWtlIHBsYWNlIGxp a2UgdGhpczoNCj4gICAgICAgICAxLiBVbm1hcA0KPiAgICAgICAgIDIuIEZsdXNoIFRMQi9Vbm1h cCBhbGlhc2VzDQo+ICAgICAgICAgMy4gRnJlZSBwYWdlcw0KPiBJbiB0aGUgZGVmZXJyZWQgY2Fz ZSB0aGVzZSBzdGVwcyBhcmUgYWxsIGRvbmUgYnkgdGhlIHdvcmsgcXVldWUuDQo+IA0KPiBUaGlz IGltcGxlbWVudGF0aW9uIGRlcml2ZXMgZnJvbSB0d28gc2tldGNoZXMgZnJvbSBEYXZlIEhhbnNl biBhbmQNCj4gQW5keSBMdXRvbWlyc2tpLg0KPiANCj4gU3VnZ2VzdGVkLWJ5OiBEYXZlIEhhbnNl biA8ZGF2ZS5oYW5zZW5AaW50ZWwuY29tPg0KPiBTdWdnZXN0ZWQtYnk6IEFuZHkgTHV0b21pcnNr aSA8bHV0b0BrZXJuZWwub3JnPg0KPiBTdWdnZXN0ZWQtYnk6IFdpbGwgRGVhY29uIDx3aWxsLmRl YWNvbkBhcm0uY29tPg0KPiBTaWduZWQtb2ZmLWJ5OiBSaWNrIEVkZ2Vjb21iZSA8cmljay5wLmVk Z2Vjb21iZUBpbnRlbC5jb20+DQo+IC0tLQ0KPiAgaW5jbHVkZS9saW51eC92bWFsbG9jLmggfCAg MSArDQo+ICBtbS92bWFsbG9jLmMgICAgICAgICAgICB8IDEzICsrKysrKysrKysrLS0NCj4gIDIg ZmlsZXMgY2hhbmdlZCwgMTIgaW5zZXJ0aW9ucygrKSwgMiBkZWxldGlvbnMoLSkNCj4gDQo+IGRp ZmYgLS1naXQgYS9pbmNsdWRlL2xpbnV4L3ZtYWxsb2MuaCBiL2luY2x1ZGUvbGludXgvdm1hbGxv Yy5oDQo+IGluZGV4IDM5OGU5Yzk1Y2Q2MS4uY2NhNmI2YjgzY2YwIDEwMDY0NA0KPiAtLS0gYS9p bmNsdWRlL2xpbnV4L3ZtYWxsb2MuaA0KPiArKysgYi9pbmNsdWRlL2xpbnV4L3ZtYWxsb2MuaA0K PiBAQCAtMjEsNiArMjEsNyBAQCBzdHJ1Y3Qgbm90aWZpZXJfYmxvY2s7CQkvKiBpbiBub3RpZmll ci5oICovDQo+ICAjZGVmaW5lIFZNX1VOSU5JVElBTElaRUQJMHgwMDAwMDAyMAkvKiB2bV9zdHJ1 Y3QgaXMgbm90IGZ1bGx5DQo+IGluaXRpYWxpemVkICovDQo+ICAjZGVmaW5lIFZNX05PX0dVQVJE CQkweDAwMDAwMDQwICAgICAgLyogZG9uJ3QgYWRkIGd1YXJkIHBhZ2UgKi8NCj4gICNkZWZpbmUg Vk1fS0FTQU4JCTB4MDAwMDAwODAgICAgICAvKiBoYXMgYWxsb2NhdGVkIGthc2FuIHNoYWRvdw0K PiBtZW1vcnkgKi8NCj4gKyNkZWZpbmUgVk1fSU1NRURJQVRFX1VOTUFQCTB4MDAwMDAyMDAJLyog Zmx1c2ggYmVmb3JlIHJlbGVhc2luZw0KPiBwYWdlcyAqLw0KPiAgLyogYml0cyBbMjAuLjMyXSBy ZXNlcnZlZCBmb3IgYXJjaCBzcGVjaWZpYyBpb3JlbWFwIGludGVybmFscyAqLw0KPiAgDQo+ICAv Kg0KPiBkaWZmIC0tZ2l0IGEvbW0vdm1hbGxvYy5jIGIvbW0vdm1hbGxvYy5jDQo+IGluZGV4IDk3 ZDRiMjVkMDM3My4uNjg3NjY2NTFiNWE3IDEwMDY0NA0KPiAtLS0gYS9tbS92bWFsbG9jLmMNCj4g KysrIGIvbW0vdm1hbGxvYy5jDQo+IEBAIC0xNTE2LDYgKzE1MTYsMTQgQEAgc3RhdGljIHZvaWQg X192dW5tYXAoY29uc3Qgdm9pZCAqYWRkciwgaW50DQo+IGRlYWxsb2NhdGVfcGFnZXMpDQo+ICAJ ZGVidWdfY2hlY2tfbm9fb2JqX2ZyZWVkKGFyZWEtPmFkZHIsIGdldF92bV9hcmVhX3NpemUoYXJl YSkpOw0KPiAgDQo+ICAJcmVtb3ZlX3ZtX2FyZWEoYWRkcik7DQo+ICsNCj4gKwkvKg0KPiArCSAq IE5lZWQgdG8gZmx1c2ggdGhlIFRMQiBiZWZvcmUgZnJlZWluZyBwYWdlcyBpbiB0aGUgY2FzZSBv ZiB0aGlzIGZsYWcuDQo+ICsJICogQXMgbG9uZyBhcyB0aGF0J3MgaGFwcGVuaW5nLCB1bm1hcCBh bGlhc2VzLg0KPiArCSAqLw0KPiArCWlmIChhcmVhLT5mbGFncyAmIFZNX0lNTUVESUFURV9VTk1B UCkNCj4gKwkJdm1fdW5tYXBfYWxpYXNlcygpOw0KPiArDQo+ICAJaWYgKGRlYWxsb2NhdGVfcGFn ZXMpIHsNCj4gIAkJaW50IGk7DQo+ICANCj4gQEAgLTE5MjUsOCArMTkzMyw5IEBAIEVYUE9SVF9T WU1CT0wodnphbGxvY19ub2RlKTsNCj4gIA0KPiAgdm9pZCAqdm1hbGxvY19leGVjKHVuc2lnbmVk IGxvbmcgc2l6ZSkNCj4gIHsNCj4gLQlyZXR1cm4gX192bWFsbG9jX25vZGUoc2l6ZSwgMSwgR0ZQ X0tFUk5FTCwgUEFHRV9LRVJORUxfRVhFQywNCj4gLQkJCSAgICAgIE5VTUFfTk9fTk9ERSwgX19i dWlsdGluX3JldHVybl9hZGRyZXNzKDApKTsNCj4gKwlyZXR1cm4gX192bWFsbG9jX25vZGVfcmFu Z2Uoc2l6ZSwgMSwgVk1BTExPQ19TVEFSVCwgVk1BTExPQ19FTkQsDQo+ICsJCQlHRlBfS0VSTkVM LCBQQUdFX0tFUk5FTF9FWEVDLCBWTV9JTU1FRElBVEVfVU5NQVAsDQo+ICsJCQlOVU1BX05PX05P REUsIF9fYnVpbHRpbl9yZXR1cm5fYWRkcmVzcygwKSk7DQo+ICB9DQo+ICANCj4gICNpZiBkZWZp bmVkKENPTkZJR182NEJJVCkgJiYgZGVmaW5lZChDT05GSUdfWk9ORV9ETUEzMikNCg==