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 0C00FCE79BE for ; Wed, 20 Sep 2023 10:37:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232939AbjITKh6 (ORCPT ); Wed, 20 Sep 2023 06:37:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58266 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231593AbjITKh4 (ORCPT ); Wed, 20 Sep 2023 06:37:56 -0400 Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.85.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 62319AC for ; Wed, 20 Sep 2023 03:37:50 -0700 (PDT) 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-284-5wXb8dyyPl6tQ9ufCu5NpA-1; Wed, 20 Sep 2023 11:37:47 +0100 X-MC-Unique: 5wXb8dyyPl6tQ9ufCu5NpA-1 Received: from AcuMS.Aculab.com (10.202.163.6) by AcuMS.aculab.com (10.202.163.6) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Wed, 20 Sep 2023 11:37:43 +0100 Received: from AcuMS.Aculab.com ([::1]) by AcuMS.aculab.com ([::1]) with mapi id 15.00.1497.048; Wed, 20 Sep 2023 11:37:43 +0100 From: David Laight To: 'Linus Torvalds' , "John Paul Adrian Glaubitz" CC: Peter Zijlstra , Matthew Wilcox , Thomas Gleixner , Ankur Arora , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "x86@kernel.org" , "akpm@linux-foundation.org" , "luto@kernel.org" , "bp@alien8.de" , "dave.hansen@linux.intel.com" , "hpa@zytor.com" , "mingo@redhat.com" , "juri.lelli@redhat.com" , "vincent.guittot@linaro.org" , "mgorman@suse.de" , "rostedt@goodmis.org" , "jon.grimm@amd.com" , "bharata@amd.com" , "raghavendra.kt@amd.com" , "boris.ostrovsky@oracle.com" , "konrad.wilk@oracle.com" , "jgross@suse.com" , "andrew.cooper3@citrix.com" , Geert Uytterhoeven , "linux-m68k@lists.linux-m68k.org" , Richard Weinberger , Anton Ivanov , Johannes Berg , "linux-um@lists.infradead.org" , Brian Cain , "linux-hexagon@vger.kernel.org" , "Richard Henderson" , Ivan Kokshaysky , Matt Turner , "linux-alpha@vger.kernel.org" Subject: RE: Arches that don't support PREEMPT Thread-Topic: Arches that don't support PREEMPT Thread-Index: AQHZ6x5UxOltR8DhjkKxVhgmNJa7b7AjhK8w Date: Wed, 20 Sep 2023 10:37:42 +0000 Message-ID: References: <87zg1u1h5t.fsf@oracle.com> <20230911150410.GC9098@noisy.programming.kicks-ass.net> <87h6o01w1a.fsf@oracle.com> <20230912082606.GB35261@noisy.programming.kicks-ass.net> <87cyyfxd4k.ffs@tglx> <87led2wdj0.ffs@tglx> <0e69f7df80dc5878071deb0d80938138d19de1d1.camel@physik.fu-berlin.de> <20230919134218.GA39281@noisy.programming.kicks-ass.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 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 RnJvbTogTGludXMgVG9ydmFsZHMNCj4gU2VudDogMTkgU2VwdGVtYmVyIDIwMjMgMTg6MjUNCj4g DQo+IE9uIFR1ZSwgMTkgU2VwdCAyMDIzIGF0IDA2OjQ4LCBKb2huIFBhdWwgQWRyaWFuIEdsYXVi aXR6DQo+IDxnbGF1Yml0ekBwaHlzaWsuZnUtYmVybGluLmRlPiB3cm90ZToNCj4gPg0KPiA+IEFz IEdlZXJ0IHBvaW5lZCBvdXQsIEknbSBub3Qgc2VlaW5nIGFueXRoaW5nIHBhcnRpY3VsYXIgcHJv YmxlbWF0aWMgd2l0aCB0aGUNCj4gPiBhcmNoaXRlY3R1cmVzIGxhY2tpbmcgQ09ORklHX1BSRUVN UFQgYXQgdGhlIG1vbWVudC4gVGhpcyBzZWVtcyB0byBiZSBtb3JlDQo+ID4gc29tZXRoaW5nIGFi b3V0IG9yZ2FuaXppbmcgS0NvbmZpZyBmaWxlcy4NCj4gDQo+IEl0IGNhbiBkZWZpbml0ZWx5IGJl IHByb2JsZW1hdGljLg0KPiANCj4gTm90IHRoZSBLY29uZmlnIGZpbGUgcGFydCwgYW5kIG5vdCB0 aGUgcHJlZW1wdCBjb3VudCBwYXJ0IGl0c2VsZi4NCj4gDQo+IEJ1dCB0aGUgZmFjdCB0aGF0IGl0 IGhhcyBuZXZlciBiZWVuIHVzZWQgYW5kIHRlc3RlZCBtZWFucyB0aGF0IHRoZXJlDQo+IG1pZ2h0 IGJlIHRvbnMgb2YgInRoaXMgYXJjaGl0ZWN0dXJlIGNvZGUga25vd3MgaXQncyBub3QgcHJlZW1w dGlibGUsDQo+IGJlY2F1c2UgdGhpcyBhcmNoaXRlY3R1cmUgZG9lc24ndCBzdXBwb3J0IHByZWVt cHRpb24iLg0KDQpEbyBkaXN0b3MgZXZlbiBidWlsZCB4ODYga2VybmVscyB3aXRoIFBSRUVNUFRf RlVMTD8NCkkga25vdyBJJ3ZlIGhhZCBpc3N1ZXMgd2l0aCBtYXNzaXZlIGxhdGVuY2llcyBjYXVz ZWQgZ3JhcGhpY3MgZHJpdmVyDQpmb3JjaW5nIHdyaXRlLWJhY2tzIG9mIGFsbCB0aGUgZnJhbWVi dWZmZXIgbWVtb3J5Lg0KKEkgdGhpbmsgaXQgaXMgYSBmYWlsZWQgYXR0ZW1wdCB0byBmaXggYSB0 ZW1wb3JhcnkgZGlzcGxheSBjb3JydXB0aW9uLikNCg0KT1RPSCBTTVAgc3VwcG9ydCBhbmQgQ09O RklHX1JUIHdpbGwgdGVzdCBtb3N0IG9mIHRoZSBjb2RlLg0KDQoJRGF2aWQNCg0KLQ0KUmVnaXN0 ZXJlZCBBZGRyZXNzIExha2VzaWRlLCBCcmFtbGV5IFJvYWQsIE1vdW50IEZhcm0sIE1pbHRvbiBL ZXluZXMsIE1LMSAxUFQsIFVLDQpSZWdpc3RyYXRpb24gTm86IDEzOTczODYgKFdhbGVzKQ0K