From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi0-f69.google.com (mail-oi0-f69.google.com [209.85.218.69]) by kanga.kvack.org (Postfix) with ESMTP id A105A6B0005 for ; Thu, 8 Mar 2018 14:30:27 -0500 (EST) Received: by mail-oi0-f69.google.com with SMTP id p6so3483347oic.9 for ; Thu, 08 Mar 2018 11:30:27 -0800 (PST) Received: from g4t3425.houston.hpe.com (g4t3425.houston.hpe.com. [15.241.140.78]) by mx.google.com with ESMTPS id e130si5742513oih.18.2018.03.08.11.30.25 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 08 Mar 2018 11:30:26 -0800 (PST) From: "Kani, Toshi" Subject: Re: [PATCH 1/2] mm/vmalloc: Add interfaces to free unused page table Date: Thu, 8 Mar 2018 19:30:23 +0000 Message-ID: <1520540118.2693.103.camel@hpe.com> References: <20180307183227.17983-1-toshi.kani@hpe.com> <20180307183227.17983-2-toshi.kani@hpe.com> <20180308180446.GF14918@arm.com> In-Reply-To: <20180308180446.GF14918@arm.com> Content-Language: en-US Content-Type: text/plain; charset="utf-8" Content-ID: <3F44F0EB15826948A3A7A51792F1AC7A@NAMPRD84.PROD.OUTLOOK.COM> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Sender: owner-linux-mm@kvack.org List-ID: To: "will.deacon@arm.com" Cc: "linux-kernel@vger.kernel.org" , "bp@suse.de" , "tglx@linutronix.de" , "guohanjun@huawei.com" , "wxf.wang@hisilicon.com" , "linux-mm@kvack.org" , "x86@kernel.org" , "akpm@linux-foundation.org" , "hpa@zytor.com" , "catalin.marinas@arm.com" , "mingo@redhat.com" , "Hocko, Michal" , "linux-arm-kernel@lists.infradead.org" T24gVGh1LCAyMDE4LTAzLTA4IGF0IDE4OjA0ICswMDAwLCBXaWxsIERlYWNvbiB3cm90ZToNCiA6 DQo+ID4gZGlmZiAtLWdpdCBhL2xpYi9pb3JlbWFwLmMgYi9saWIvaW9yZW1hcC5jDQo+ID4gaW5k ZXggYjgwOGEzOTBlNGMzLi41NGU1YmJhYTMyMDAgMTAwNjQ0DQo+ID4gLS0tIGEvbGliL2lvcmVt YXAuYw0KPiA+ICsrKyBiL2xpYi9pb3JlbWFwLmMNCj4gPiBAQCAtOTEsNyArOTEsOCBAQCBzdGF0 aWMgaW5saW5lIGludCBpb3JlbWFwX3BtZF9yYW5nZShwdWRfdCAqcHVkLCB1bnNpZ25lZCBsb25n IGFkZHIsDQo+ID4gIA0KPiA+ICAJCWlmIChpb3JlbWFwX3BtZF9lbmFibGVkKCkgJiYNCj4gPiAg CQkgICAgKChuZXh0IC0gYWRkcikgPT0gUE1EX1NJWkUpICYmDQo+ID4gLQkJICAgIElTX0FMSUdO RUQocGh5c19hZGRyICsgYWRkciwgUE1EX1NJWkUpKSB7DQo+ID4gKwkJICAgIElTX0FMSUdORUQo cGh5c19hZGRyICsgYWRkciwgUE1EX1NJWkUpICYmDQo+ID4gKwkJICAgIHBtZF9mcmVlX3B0ZV9w YWdlKHBtZCkpIHsNCj4gDQo+IEkgZmluZCBpdCBhIGJpdCB3ZWlyZCB0aGF0IHdlJ3JlIHBvc3Rw b25pbmcgdGhpcyB0byB0aGUgc3Vic2VxdWVudCBtYXAuIElmDQo+IHdlIHdhbnQgdG8gYWRkcmVz cyB0aGUgYnJlYWstYmVmb3JlLW1ha2UgaXNzdWUgdGhhdCB3YXMgY2F1c2luZyBhIHBhbmljIG9u DQo+IGFybTY0LCB0aGVuIEkgdGhpbmsgaXQgd291bGQgYmUgYmV0dGVyIHRvIGRvIHRoaXMgb24g dGhlIHVubWFwIHBhdGggdG8gYXZvaWQNCj4gZHVwbGljYXRpbmcgVExCIGludmFsaWRhdGlvbi4N Cg0KSGkgV2lsbCwNCg0KWWVzLCBJIHN0YXJ0ZWQgbG9va2luZyBpbnRvIGRvaW5nIGl0IHRoZSB1 bm1hcCBwYXRoLCBidXQgZm91bmQgdGhlDQpmb2xsb3dpbmcgaXNzdWVzOg0KDQogLSBUaGUgaW91 bm1hcCgpIHBhdGggaXMgc2hhcmVkIHdpdGggdnVubWFwKCkuICBTaW5jZSB2bWFwKCkgb25seQ0K c3VwcG9ydHMgcHRlIG1hcHBpbmdzLCBtYWtpbmcgdnVubWFwKCkgdG8gZnJlZSBwdGUgcGFnZXMg aXMgYW4gb3ZlcmhlYWQNCmZvciByZWd1bGFyIHZtYXAgdXNlcnMgYXMgdGhleSBkbyBub3QgbmVl ZCBwdGUgcGFnZXMgZnJlZWQgdXAuDQogLSBDaGVja2luZyB0byBzZWUgaWYgYWxsIGVudHJpZXMg aW4gYSBwdGUgcGFnZSBhcmUgY2xlYXJlZCBpbiB0aGUgdW5tYXANCnBhdGggaXMgcmFjeSwgYW5k IHNlcmlhbGl6aW5nIHRoaXMgY2hlY2sgaXMgZXhwZW5zaXZlLg0KIC0gVGhlIHVubWFwIHBhdGgg Y2FsbHMgZnJlZV92bWFwX2FyZWFfbm9mbHVzaCgpIHRvIGRvIGxhenkgVExCIHB1cmdlcy4NCkNs ZWFyaW5nIGEgcHVkL3BtZCBlbnRyeSBiZWZvcmUgdGhlIGxhenkgVExCIHB1cmdlcyBuZWVkcyBl eHRyYSBUTEINCnB1cmdlLg0KDQpIZW5jZSwgSSBkZWNpZGVkIHRvIHBvc3Rwb25lIGFuZCBkbyBp dCBpbiB0aGUgaW9yZW1hcCBwYXRoIHdoZW4gYQ0KcHVkL3BtZCBtYXBwaW5nIGlzIHNldC4gIFRo ZSAiYnJlYWsiIG9uIGFybTY0IGhhcHBlbnMgd2hlbiB5b3UgdXBkYXRlIGENCnBtZCBlbnRyeSB3 aXRob3V0IHB1cmdpbmcgaXQuICBTbywgdGhlIHVubWFwIHBhdGggaXMgbm90IGJyb2tlbi4gIEkN CnVuZGVyc3RhbmQgdGhhdCBhcm02NCBtYXkgbmVlZCBleHRyYSBUTEIgcHVyZ2UgaW4gcG1kX2Zy ZWVfcHRlX3BhZ2UoKSwNCmJ1dCBpdCBsaW1pdHMgdGhpcyBvdmVyaGVhZCBvbmx5IHdoZW4gaXQg c2V0cyB1cCBhIHB1ZC9wbWQgbWFwcGluZy4NCg0KVGhhbmtzLA0KLVRvc2hpDQo=