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 X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DA992C3F2C6 for ; Tue, 10 Mar 2020 15:06:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A426820727 for ; Tue, 10 Mar 2020 15:06:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727875AbgCJPGB (ORCPT ); Tue, 10 Mar 2020 11:06:01 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([207.82.80.151]:23390 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726315AbgCJPGB (ORCPT ); Tue, 10 Mar 2020 11:06:01 -0400 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-210-iSMpx19TOieG95yzzI3csw-1; Tue, 10 Mar 2020 15:05:58 +0000 X-MC-Unique: iSMpx19TOieG95yzzI3csw-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) by AcuMS.aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Tue, 10 Mar 2020 15:05:57 +0000 Received: from AcuMS.Aculab.com ([fe80::43c:695e:880f:8750]) by AcuMS.aculab.com ([fe80::43c:695e:880f:8750%12]) with mapi id 15.00.1347.000; Tue, 10 Mar 2020 15:05:57 +0000 From: David Laight To: 'Marco Elver' , "Paul E. McKenney" CC: Chris Wilson , "linux-kernel@vger.kernel.org" , "intel-gfx@lists.freedesktop.org" , Andrew Morton , Randy Dunlap , "stable@vger.kernel.org" Subject: RE: [PATCH] list: Prevent compiler reloads inside 'safe' list iteration Thread-Topic: [PATCH] list: Prevent compiler reloads inside 'safe' list iteration Thread-Index: AQHV9r1KBrT+D4Vo2U+Op9v/Nv0od6hBsdzwgAAEwQCAAAWYAIAAIYhOgAAPJuA= Date: Tue, 10 Mar 2020 15:05:57 +0000 Message-ID: <77ff4da6b0a7448c947af6de4fb43cdb@AcuMS.aculab.com> References: <20200310092119.14965-1-chris@chris-wilson.co.uk> <2e936d8fd2c445beb08e6dd3ee1f3891@AcuMS.aculab.com> <158384100886.16414.15741589015363013386@build.alporthouse.com> <723d527a4ad349b78bf11d52eba97c0e@AcuMS.aculab.com> <20200310125031.GY2935@paulmck-ThinkPad-P72> In-Reply-To: Accept-Language: en-GB, en-US Content-Language: 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-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RnJvbTogTWFyY28gRWx2ZXINCj4gU2VudDogMTAgTWFyY2ggMjAyMCAxNDoxMA0KLi4uDQo+IEZX SVcsIGZvciB3cml0ZXMgd2UncmUgYWxyZWFkeSBiZWluZyBxdWl0ZSBnZW5lcm91cywgaW4gdGhh dCBwbGFpbg0KPiBhbGlnbmVkIHdyaXRlcyB1cCB0byB3b3JkLXNpemUgYXJlIGFzc3VtZWQgdG8g YmUgImF0b21pYyIgd2l0aCB0aGUNCj4gZGVmYXVsdCAoY29uc2VydmF0aXZlKSBjb25maWcsIGku ZS4gbWFya2luZyBzdWNoIHdyaXRlcyBpcyBvcHRpb25hbC4NCj4gQWx0aG91Z2gsIHRoYXQncyBh IGdlbmVyb3VzIGFzc3VtcHRpb24gdGhhdCBpcyBub3QgYWx3YXlzIGd1YXJhbnRlZWQNCj4gdG8g aG9sZCAoaHR0cHM6Ly9sb3JlLmtlcm5lbC5vcmcvbGttbC8yMDE5MDgyMTEwMzIwMC5rcHVmd3R2 aXFocGJ1djJuQHdpbGxpZS10aGUtdHJ1Y2svKS4NCg0KUmVtaW5kIG1lIHRvIHN0YXJ0IHdyaXRp bmcgZXZlcnl0aGluZyBpbiBhc3NlbWJsZXIuDQoNClRoYXQgYW5kIHRvIG1hcmsgYWxsIHN0cnVj dHVyZSBtZW1iZXJzICd2b2xhdGlsZScuDQoNCglEYXZpZA0KDQotDQpSZWdpc3RlcmVkIEFkZHJl c3MgTGFrZXNpZGUsIEJyYW1sZXkgUm9hZCwgTW91bnQgRmFybSwgTWlsdG9uIEtleW5lcywgTUsx IDFQVCwgVUsNClJlZ2lzdHJhdGlvbiBObzogMTM5NzM4NiAoV2FsZXMpDQo=