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[23.128.96.18]) by mx.google.com with ESMTP id kl9si4365273ejc.603.2021.05.28.01.11.01; Fri, 28 May 2021 01:11:24 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=aculab.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235710AbhE1ILS (ORCPT + 99 others); Fri, 28 May 2021 04:11:18 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.85.151]:52488 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230187AbhE1ILS (ORCPT ); Fri, 28 May 2021 04:11:18 -0400 Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-154-jW9gY-4NOEegDDbnS88x7w-1; Fri, 28 May 2021 09:09:41 +0100 X-MC-Unique: jW9gY-4NOEegDDbnS88x7w-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) by AcuMS.aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 28 May 2021 09:09:39 +0100 Received: from AcuMS.Aculab.com ([fe80::994c:f5c2:35d6:9b65]) by AcuMS.aculab.com ([fe80::994c:f5c2:35d6:9b65%12]) with mapi id 15.00.1497.015; Fri, 28 May 2021 09:09:39 +0100 From: David Laight To: 'Andrii Nakryiko' , Christoph Hellwig CC: Mel Gorman , Andrew Morton , Arnaldo Carvalho de Melo , Michal Suchanek , Alexei Starovoitov , Daniel Borkmann , Martin KaFai Lau , "Song Liu" , Yonghong Song , John Fastabend , KP Singh , open list , Jiri Olsa , Hritik Vijay , bpf , Linux-Net , Linux-MM Subject: RE: [PATCH] mm/page_alloc: Work around a pahole limitation with zero-sized struct pagesets Thread-Topic: [PATCH] mm/page_alloc: Work around a pahole limitation with zero-sized struct pagesets Thread-Index: AQHXUwZwxICJrzVIrECdOMP8p5MLKKr4istw Date: Fri, 28 May 2021 08:09:39 +0000 Message-ID: <8fe547e9e87f40aebce82021d76a2d08@AcuMS.aculab.com> References: <20210526080741.GW30378@techsingularity.net> <20210527090422.GA30378@techsingularity.net> In-Reply-To: Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RnJvbTogQW5kcmlpIE5ha3J5aWtvDQo+IFNlbnQ6IDI3IE1heSAyMDIxIDE1OjQyDQouLi4NCj4g SSBhZ3JlZSB0aGF0IGVtcHR5IHN0cnVjdHMgYXJlIHVzZWZ1bCwgYnV0IGhlcmUgd2UgYXJlIHRh bGtpbmcgYWJvdXQNCj4gcGVyLUNQVSB2YXJpYWJsZXMgb25seSwgd2hpY2ggaXMgdGhlIGZpcnN0 IHVzZSBjYXNlIHNvIGZhciwgYXMgZmFyIGFzDQo+IEkgY2FuIHNlZS4gSWYgd2UgaGFkIHBhaG9s ZSAxLjIyIHJlbGVhc2VkIGFuZCB3aWRlbHkgcGFja2FnZWQgaXQgY291bGQNCj4gaGF2ZSBiZWVu IGEgdmlhYmxlIG9wdGlvbiB0byBmb3JjZSBpdCBvbiBldmVyeW9uZS4gDQouLi4NCg0KV291bGQg aXQgYmUgZmVhc2libGUgdG8gcHV0IHRoZSBzb3VyY2VzIGZvciBwYWhvbGUgaW50byB0aGUNCmtl cm5lbCByZXBvc2l0b3J5IGFuZCBidWlsZCBpdCBhdCB0aGUgc2FtZSB0aW1lIGFzIG9ianRvb2w/ DQoNClRoYXQgd291bGQgcmVtb3ZlIGFueSBpc3N1ZXMgYWJvdXQgdGhlIGxhdGVzdCB2ZXJzaW9u DQpub3QgYmVpbmcgYXZhaWxhYmxlLg0KDQoJRGF2aWQNCg0KLQ0KUmVnaXN0ZXJlZCBBZGRyZXNz IExha2VzaWRlLCBCcmFtbGV5IFJvYWQsIE1vdW50IEZhcm0sIE1pbHRvbiBLZXluZXMsIE1LMSAx UFQsIFVLDQpSZWdpc3RyYXRpb24gTm86IDEzOTczODYgKFdhbGVzKQ0K