From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-f69.google.com (mail-pg0-f69.google.com [74.125.83.69]) by kanga.kvack.org (Postfix) with ESMTP id 64B4B6B0253 for ; Mon, 27 Nov 2017 01:44:08 -0500 (EST) Received: by mail-pg0-f69.google.com with SMTP id s18so28211277pge.19 for ; Sun, 26 Nov 2017 22:44:08 -0800 (PST) Received: from tyo161.gate.nec.co.jp (tyo161.gate.nec.co.jp. [114.179.232.161]) by mx.google.com with ESMTPS id q13si21808925pgt.668.2017.11.26.22.44.06 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 26 Nov 2017 22:44:06 -0800 (PST) From: Naoya Horiguchi Subject: Re: hugetlb page migration vs. overcommit Date: Mon, 27 Nov 2017 06:27:36 +0000 Message-ID: <4c97aaf2-19ed-b45c-e61a-fa9510cd9ddf@ah.jp.nec.com> References: <20171122152832.iayefrlxbugphorp@dhcp22.suse.cz> <91969714-5256-e96f-a48b-43af756a2686@oracle.com> In-Reply-To: <91969714-5256-e96f-a48b-43af756a2686@oracle.com> Content-Language: ja-JP Content-Type: text/plain; charset="utf-8" Content-ID: <0430D7B812B862409056DAEAE92916D4@gisp.nec.co.jp> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Sender: owner-linux-mm@kvack.org List-ID: To: Mike Kravetz , Michal Hocko , "linux-mm@kvack.org" Cc: Naoya Horiguchi , LKML T24gMTEvMjMvMjAxNyAwNDoxMSBBTSwgTWlrZSBLcmF2ZXR6IHdyb3RlOg0KPiBPbiAxMS8yMi8y MDE3IDA3OjI4IEFNLCBNaWNoYWwgSG9ja28gd3JvdGU6DQo+PiBIaSwNCj4+IGlzIHRoZXJlIGFu eSByZWFzb24gd2h5IHdlIGVuZm9yY2UgdGhlIG92ZXJjb21taXQgbGltaXQgZHVyaW5nIGh1Z2V0 bGINCj4+IHBhZ2VzIG1pZ3JhdGlvbj8gSXQncyBpbiBhbGxvY19odWdlX3BhZ2Vfbm9kZS0+X19h bGxvY19idWRkeV9odWdlX3BhZ2UNCj4+IHBhdGguIEkgYW0gd29uZGVyaW5nIHdoZXRoZXIgdGhp cyBpcyByZWFsbHkgYW4gaW50ZW50aW9uYWwgYmVoYXZpb3IuDQo+IA0KPiBJIGRvIG5vdCB0aGlu ayBpdCB3YXMgaW50ZW50aW9uYWwuICBCdXQsIEkgd2FzIG5vdCBhcm91bmQgd2hlbiB0aGF0DQo+ IGNvZGUgd2FzIGFkZGVkLg0KPiANCj4+IFRoZSBwYWdlIG1pZ3JhdGlvbiBhbGxvY2F0ZXMgYSBw YWdlIGp1c3QgdGVtcG9yYXJpbHkgc28gd2Ugc2hvdWxkIGJlDQo+PiBhYmxlIHRvIGdvIG92ZXIg dGhlIG92ZXJjb21taXQgbGltaXQgZm9yIHRoZSBtaWdyYXRpb24gZHVyYXRpb24uIFRoZQ0KPj4g cmVhc29uIEkgYW0gYXNraW5nIGlzIHRoYXQgaHVnZXRsYiBwYWdlcyB0ZW5kIHRvIGJlIHV0aWxp emVkIHVzdWFsbHkNCj4+IChvdGhlcndpc2UgdGhlIG1lbW9yeSB3b3VsZCBiZSBqdXN0IHdhc3Rl ZCBhbmQgcG9vbCBzaHJ1bmspIGJ1dCB0aGVuDQo+PiB0aGUgbWlncmF0aW9uIHNpbXBseSBmYWls cyB3aGljaCBicmVha3MgbWVtb3J5IGhvdHBsdWcgYW5kIG90aGVyDQo+PiBtaWdyYXRpb24gZGVw ZW5kZW50IGZ1bmN0aW9uYWxpdHkgd2hpY2ggaXMgcXVpdGUgc3Vib3B0aW1hbC4gWW91IGNhbg0K Pj4gd29ya2Fyb3VuZCB0aGF0IGJ5IGluY3JlYXNpbmcgdGhlIG92ZXJjb21taXQgbGltaXQuDQo+ IA0KPiBZZXMuICBJbiBhbiBlbnZpcm9ubWVudCBtYWtpbmcgb3B0aW1hbCB1c2Ugb2YgaHVnZSBw YWdlcywgeW91IGFyZSB1bmxpa2VseQ0KPiB0byBoYXZlICdzcGFyZSBwYWdlcycgc2V0IGFzaWRl IGZvciBhIHBvdGVudGlhbCBtaWdyYXRpb24gb3BlcmF0aW9uLiAgU28NCj4gSSBhZ3JlZSB0aGF0 IGl0IHdvdWxkIG1ha2Ugc2Vuc2UgdG8gdHJ5IGFuZCBhbGxvY2F0ZSBvdmVyY29tbWl0IHBhZ2Vz IGZvcg0KPiB0aGlzIHB1cnBvc2UuDQoNClRoYW5rIHlvdSBmb3IgcG9pbnRpbmcgdGhpcyBvdXQs IE1pY2hhbCwgTWlrZS4NCkRvaW5nIG92ZXJjb21taXR0aW5nIGluIGh1Z2VwYWdlIG1pZ3JhdGlv biBpcyB0b3RhbGx5IHJpZ2h0IHRvIG1lLA0KSSBqdXN0IGRpZG4ndCBub3RpY2UgaXQgd2hlbiBJ IHdyb3RlIHRoZSBjb2RlLg0KDQo+IA0KPj4gV2h5IGRvbid0IHdlIHNpbXBseSBtaWdyYXRlIGFz IGxvbmcgYXMgd2UgYXJlIGFibGUgdG8gYWxsb2NhdGUgdGhlDQo+PiB0YXJnZXQgaHVnZXRsYiBw YWdlPyBJIGhhdmUgYSBoYWxmIGJha2VkIHBhdGNoIHRvIHJlbW92ZSB0aGlzDQo+PiByZXN0cmlj dGlvbiwgd291bGQgdGhlcmUgYmUgYW4gb3Bwb3NpdGlvbiB0byBkbyBzb21ldGhpbmcgbGlrZSB0 aGF0Pw0KPiANCj4gSSB3b3VsZCBub3QgYmUgb3Bwb3NlZCBhbmQgd291bGQgaGVscCB3aXRoIHRo aXMgZWZmb3J0LiAgTXkgY29uY2VybiB3b3VsZA0KPiBiZSBhbnkgc3VidGxlIGh1Z2V0bGIgYWNj b3VudGluZyBpc3N1ZXMgb25jZSB5b3Ugc3RhcnQgbWVzc2luZyB3aXRoDQo+IGFkZGl0aW9uYWwg b3ZlcmNvbW1pdCBwYWdlcy4NCg0KWWVzLCBodWdldGxiIGFjY291bnRpbmcgYWx3YXlzIG5lZWRz IGNhcmUgd2hlbiB0b3VjaGluZyByZWxhdGVkIGNvZGUuDQpJIGNhbiBoZWxwIHRlc3RpbmcuDQoN ClRoYW5rcywNCk5hb3lhIEhvcmlndWNoaQ== -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org