From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 954BBC61DA4 for ; Thu, 2 Feb 2023 22:46:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232990AbjBBWqL (ORCPT ); Thu, 2 Feb 2023 17:46:11 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56398 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232972AbjBBWqK (ORCPT ); Thu, 2 Feb 2023 17:46:10 -0500 Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.86.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 298006A31A for ; Thu, 2 Feb 2023 14:46:03 -0800 (PST) Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) by relay.mimecast.com with ESMTP with both STARTTLS and AUTH (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id uk-mta-29-y36o5xIlPiWVEvSaXEynsQ-1; Thu, 02 Feb 2023 22:45:59 +0000 X-MC-Unique: y36o5xIlPiWVEvSaXEynsQ-1 Received: from AcuMS.Aculab.com (10.202.163.6) by AcuMS.aculab.com (10.202.163.6) with Microsoft SMTP Server (TLS) id 15.0.1497.45; Thu, 2 Feb 2023 22:45:57 +0000 Received: from AcuMS.Aculab.com ([::1]) by AcuMS.aculab.com ([::1]) with mapi id 15.00.1497.045; Thu, 2 Feb 2023 22:45:57 +0000 From: David Laight To: 'Linus Torvalds' , Peter Zijlstra CC: "corbet@lwn.net" , "will@kernel.org" , "boqun.feng@gmail.com" , "mark.rutland@arm.com" , "catalin.marinas@arm.com" , "dennis@kernel.org" , "tj@kernel.org" , "cl@linux.com" , "hca@linux.ibm.com" , "gor@linux.ibm.com" , "agordeev@linux.ibm.com" , "borntraeger@linux.ibm.com" , "svens@linux.ibm.com" , "tglx@linutronix.de" , "mingo@redhat.com" , "bp@alien8.de" , "dave.hansen@linux.intel.com" , "x86@kernel.org" , "hpa@zytor.com" , "joro@8bytes.org" , "suravee.suthikulpanit@amd.com" , "robin.murphy@arm.com" , "dwmw2@infradead.org" , "baolu.lu@linux.intel.com" , Arnd Bergmann , Herbert Xu , "davem@davemloft.net" , "penberg@kernel.org" , "rientjes@google.com" , "iamjoonsoo.kim@lge.com" , Andrew Morton , "vbabka@suse.cz" , "roman.gushchin@linux.dev" , "42.hyeyoo@gmail.com" <42.hyeyoo@gmail.com>, "linux-doc@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "linux-s390@vger.kernel.org" , "iommu@lists.linux.dev" , "linux-arch@vger.kernel.org" , "linux-crypto@vger.kernel.org" Subject: RE: [PATCH v2 00/10] Introduce cmpxchg128() -- aka. the demise of cmpxchg_double() Thread-Topic: [PATCH v2 00/10] Introduce cmpxchg128() -- aka. the demise of cmpxchg_double() Thread-Index: AQHZNz4vE8dWPUdohk2nkEpDmnikoa68PlfA Date: Thu, 2 Feb 2023 22:45:57 +0000 Message-ID: References: <20230202145030.223740842@infradead.org> 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 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-arch@vger.kernel.org RnJvbTogTGludXMgVG9ydmFsZHMNCj4gU2VudDogMDIgRmVicnVhcnkgMjAyMyAxOTozOQ0KPiAN Cj4gT24gVGh1LCBGZWIgMiwgMjAyMyBhdCA3OjI5IEFNIFBldGVyIFppamxzdHJhIDxwZXRlcnpA aW5mcmFkZWFkLm9yZz4gd3JvdGU6DQo+ID4NCj4gPiAgLSBmaXhlZCB1cCB0aGUgaW5saW5lIGFz bSB0byB1c2UgJ3UxMjggKicgbWVtIGFyZ3VtZW50IHNvIHRoZSBjb21waWxlciBrbm93cw0KPiA+ ICAgIGhvdyB3aWRlIHRoZSBtb2RpZmljYXRpb24gaXMuDQo+ID4gIC0gcmV3b3JrZWQgdGhlIHBl cmNwdSB0aGluZyB0byB1c2UgdW5pb24gYmFzZWQgdHlwZS1wdW5uaW5nIGluc3RlYWQgb2YNCj4g PiAgICBfR2VuZXJpYygpIGJhc2VkIGNhc3RzLg0KPiANCj4gTG9va3MgbG92ZWx5IHRvIG1lLiBU aGlzIHJlbW92ZWQgYWxsIG15IGNvbmNlcm5zIChleGNlcHQgZm9yIHRoZQ0KPiB0ZXN0aW5nIG9u ZSwgYnV0IGFsbCB0aGUgcGF0Y2hlcyBsb29rZWQgbmljZSBhbmQgY2xlYW4gdG8gbWUsIHNvDQo+ IGNsZWFybHkgaXQgbXVzdCBiZSBwZXJmZWN0KS4NCg0KVGhlIGNoYW5nZSBpcyBhbG1vc3QgY2Vy dGFpbmx5IGZvciB0aGUgYmV0dGVyLg0KDQpCdXQgZGlkIEkgc3BvdCBvbmUgb2YgdGhlIGJpdHMg dXNpbmcgY21weGNoZzEyOCBqdXN0IHRvIGRvIGFuIGF0b21pYyB3cml0ZT8NCkkgdGhpbmsgaXQg d2FzIHVwZGF0aW5nIHNvbWUgaW50ZXJydXB0IGluZm8gdGhhdCB3YXMgYXQgZmlyc3QgZ2xhbmNl IG5vdA0KZGlzc2ltaWxhciB0byB0aGF0IHVzZWQgYnkgTVNJLVggKGl0IHdhc24ndCBNU0ktWCku DQoNCklmIHRoYXQgd2FzIGEgaGFyZHdhcmUgcmVnaXN0ZXIgdGhlbiBpdCBjb3VsZCB3ZWxsIHJl cXVpcmUgYSBmdWxsIGJ1cyBsb2NrLg0KVXNpbmcgYSB3cml0ZSBvZiBhIHNzZSAob3IgZXF1aXYp IDEyOGJpdCByZWdpc3RlciB3b3VsZCBiZSBhbiBhdG9taWMgd3JpdGUNCndpdGhvdXQgdGhlIGJ1 cyBsb2NrIHByb2JsZW0uDQoNCkFsc28sIHRoYXQgaXMgb25seSBnb2luZyB0byB3b3JrIGlmIHRo ZSBoYXJkd2FyZS9sb2dpYyBzaWRlIGd1YXJhbnRlZXMgdG8NCnRyZWF0IGEgc2luZ2xlIHdyaXRl IGFzIGF0b21pYy4NCkkga25vdyB0aGVyZSBhcmUgTVNJLVggaW1wbGVtZW50YXRpb25zIG91dCB0 aGVyZSB3aGVyZSB0aGUgY3B1IHdyaXRlDQp3aWxsIGJlIHNwbGl0IGludG8gZm91ciAzMmJpdCB3 cml0ZXMgdG8gc29tZSBpbnRlcm5hbCBtZW1vcnkgYW5kIHRoZQ0KaGFyZHdhcmUgc2lkZSB3aWxs IGFsc28gZG8gbXVsdGlwbGUgYWNjZXNzZXMuDQooUHJldHR5IG11Y2ggYW55IGltcGxlbWVudGF0 aW9uIG9uIGFuIGZwZ2Egd2lsbCBiZWhhdmUgbGlrZSB0aGF0LA0Kbm90IGp1c3QgdGhlIG9uZSBJ IHdyb3RlLikNCkkgZGlkbid0IHNlZSB0aGUgTVNJLVggY29kZSB0aGVyZSwgYnV0IEkgZG8gd29u ZGVyIGhvdyBpdCBzYWZlbHkgY2hhbmdlcw0KYWZmaW5pdGllcy4NCg0KCURhdmlkDQoNCi0NClJl Z2lzdGVyZWQgQWRkcmVzcyBMYWtlc2lkZSwgQnJhbWxleSBSb2FkLCBNb3VudCBGYXJtLCBNaWx0 b24gS2V5bmVzLCBNSzEgMVBULCBVSw0KUmVnaXN0cmF0aW9uIE5vOiAxMzk3Mzg2IChXYWxlcykN Cg==