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=-3.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 E8D09C43603 for ; Mon, 9 Dec 2019 12:50:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BC51420726 for ; Mon, 9 Dec 2019 12:50:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amazon.com header.i=@amazon.com header.b="R18xQG7q" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727633AbfLIMu0 (ORCPT ); Mon, 9 Dec 2019 07:50:26 -0500 Received: from smtp-fw-9101.amazon.com ([207.171.184.25]:27030 "EHLO smtp-fw-9101.amazon.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727403AbfLIMu0 (ORCPT ); Mon, 9 Dec 2019 07:50:26 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1575895826; x=1607431826; h=from:to:cc:subject:date:message-id:references: in-reply-to:content-transfer-encoding:mime-version; bh=JwipO2X1VmQq2Ag5f6aOSWXN7UQj3QQuwEodP/dnAlU=; b=R18xQG7q8jo54dTrkF/p5mCdFlXSFwTRFfhB7PpNevbqVyk5HbmwI9Ux 6ktbr+LU2KAZVYmyIQYjWJZlTjX9pCOlB/QKl7/7/5Wh2IiV7AlfLUYir +pE4uyihiiM4GvPdzS6O9B9j+82fOq1lzrD06Hiq8NBi9zoRIde1AyYy6 A=; IronPort-SDR: ed04pFZ02vaQIEH7Le5nNdxA7GWYxUdU+Lr2RmSO7Wi8qRP/6Ed3kWP+0iDfPs27mx9+x1zrd7 kbXw6uPB33Cg== X-IronPort-AV: E=Sophos;i="5.69,294,1571702400"; d="scan'208";a="4015538" Received: from sea32-co-svc-lb4-vlan3.sea.corp.amazon.com (HELO email-inbound-relay-2b-c7131dcf.us-west-2.amazon.com) ([10.47.23.38]) by smtp-border-fw-out-9101.sea19.amazon.com with ESMTP; 09 Dec 2019 12:50:13 +0000 Received: from EX13MTAUEA001.ant.amazon.com (pdx4-ws-svc-p6-lb7-vlan2.pdx.amazon.com [10.170.41.162]) by email-inbound-relay-2b-c7131dcf.us-west-2.amazon.com (Postfix) with ESMTPS id B67EFA15C3; Mon, 9 Dec 2019 12:50:11 +0000 (UTC) Received: from EX13D32EUC002.ant.amazon.com (10.43.164.94) by EX13MTAUEA001.ant.amazon.com (10.43.61.243) with Microsoft SMTP Server (TLS) id 15.0.1367.3; Mon, 9 Dec 2019 12:50:11 +0000 Received: from EX13D32EUC003.ant.amazon.com (10.43.164.24) by EX13D32EUC002.ant.amazon.com (10.43.164.94) with Microsoft SMTP Server (TLS) id 15.0.1367.3; Mon, 9 Dec 2019 12:50:10 +0000 Received: from EX13D32EUC003.ant.amazon.com ([10.43.164.24]) by EX13D32EUC003.ant.amazon.com ([10.43.164.24]) with mapi id 15.00.1367.000; Mon, 9 Dec 2019 12:50:10 +0000 From: "Durrant, Paul" To: =?utf-8?B?SsO8cmdlbiBHcm/Dnw==?= , =?utf-8?B?Um9nZXIgUGF1IE1vbm7DqQ==?= CC: "xen-devel@lists.xenproject.org" , "Boris Ostrovsky" , Stefano Stabellini , "linux-kernel@vger.kernel.org" Subject: RE: [Xen-devel] [PATCH 3/4] xen/interface: don't discard pending work in FRONT/BACK_RING_ATTACH Thread-Topic: [Xen-devel] [PATCH 3/4] xen/interface: don't discard pending work in FRONT/BACK_RING_ATTACH Thread-Index: AQHVq3SEQ22T+F2O5E+9q5oO42T5TKextFGAgAAC9wCAAA/DwA== Date: Mon, 9 Dec 2019 12:50:10 +0000 Message-ID: <33b8644a74034544aa72187428780d98@EX13D32EUC003.ant.amazon.com> References: <20191205140123.3817-1-pdurrant@amazon.com> <20191205140123.3817-4-pdurrant@amazon.com> <20191209114137.GT980@Air-de-Roger> <5777c17b-9028-2525-1322-6c05f1ce3aab@suse.com> In-Reply-To: <5777c17b-9028-2525-1322-6c05f1ce3aab@suse.com> 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: [10.43.164.211] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org PiAtLS0tLU9yaWdpbmFsIE1lc3NhZ2UtLS0tLQ0KPiBGcm9tOiBYZW4tZGV2ZWwgPHhlbi1kZXZl bC1ib3VuY2VzQGxpc3RzLnhlbnByb2plY3Qub3JnPiBPbiBCZWhhbGYgT2YNCj4gSsO8cmdlbiBH cm/Dnw0KPiBTZW50OiAwOSBEZWNlbWJlciAyMDE5IDExOjUyDQo+IFRvOiBSb2dlciBQYXUgTW9u bsOpIDxyb2dlci5wYXVAY2l0cml4LmNvbT47IER1cnJhbnQsIFBhdWwNCj4gPHBkdXJyYW50QGFt YXpvbi5jb20+DQo+IENjOiB4ZW4tZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmc7IEJvcmlzIE9z dHJvdnNreQ0KPiA8Ym9yaXMub3N0cm92c2t5QG9yYWNsZS5jb20+OyBTdGVmYW5vIFN0YWJlbGxp bmkgPHNzdGFiZWxsaW5pQGtlcm5lbC5vcmc+Ow0KPiBsaW51eC1rZXJuZWxAdmdlci5rZXJuZWwu b3JnDQo+IFN1YmplY3Q6IFJlOiBbWGVuLWRldmVsXSBbUEFUQ0ggMy80XSB4ZW4vaW50ZXJmYWNl OiBkb24ndCBkaXNjYXJkIHBlbmRpbmcNCj4gd29yayBpbiBGUk9OVC9CQUNLX1JJTkdfQVRUQUNI DQo+IA0KPiBPbiAwOS4xMi4xOSAxMjo0MSwgUm9nZXIgUGF1IE1vbm7DqSB3cm90ZToNCj4gPiBP biBUaHUsIERlYyAwNSwgMjAxOSBhdCAwMjowMToyMlBNICswMDAwLCBQYXVsIER1cnJhbnQgd3Jv dGU6DQo+ID4+IEN1cnJlbnRseSB0aGVzZSBtYWNyb3Mgd2lsbCBza2lwIG92ZXIgYW55IHJlcXVl c3RzL3Jlc3BvbnNlcyB0aGF0IGFyZQ0KPiA+PiBhZGRlZCB0byB0aGUgc2hhcmVkIHJpbmcgd2hp bHN0IGl0IGlzIGRldGFjaGVkLiBUaGlzLCBpbiBnZW5lcmFsLCBpcw0KPiBub3QNCj4gPj4gYSBk ZXNpcmFibGUgc2VtYW50aWMgc2luY2UgbW9zdCBmcm9udGVuZCBpbXBsZW1lbnRhdGlvbnMgd2ls bA0KPiBldmVudHVhbGx5DQo+ID4+IGJsb2NrIHdhaXRpbmcgZm9yIGEgcmVzcG9uc2Ugd2hpY2gg d291bGQgZWl0aGVyIG5ldmVyIGFwcGVhciBvciBuZXZlcg0KPiBiZQ0KPiA+PiBwcm9jZXNzZWQu DQo+ID4+DQo+ID4+IE5PVEU6IFRoZXNlIG1hY3JvcyBhcmUgY3VycmVudGx5IHVudXNlZC4gQkFD S19SSU5HX0FUVEFDSCgpLCBob3dldmVyLA0KPiB3aWxsDQo+ID4+ICAgICAgICBiZSB1c2VkIGlu IGEgc3Vic2VxdWVudCBwYXRjaC4NCj4gPj4NCj4gPj4gU2lnbmVkLW9mZi1ieTogUGF1bCBEdXJy YW50IDxwZHVycmFudEBhbWF6b24uY29tPg0KPiA+DQo+ID4gVGhvc2UgaGVhZGVycyBjb21lIGZy b20gWGVuLCBhbmQgc2hvdWxkIGJlIG1vZGlmaWVkIGluIFhlbiBmaXJzdCBhbmQNCj4gPiB0aGVu IGltcG9ydGVkIGludG8gTGludXggSU1PLg0KPiANCj4gSW4gdGhlb3J5LCB5ZXMuIEJ1dCB0aGUg WGVuIHZhcmlhbnQgZG9lc24ndCBjb250YWluIHRoZSBBVFRBQ0ggbWFjcm9zLg0KPiANCg0KT09J IGRvIHdlIGhhdmUgYSBwb2xpY3kgYWJvdXQgdGhpcz8gUmUtaW1wb3J0aW5nIGhlYWRlcnMgaW50 byBMaW51eCB3aG9sZXNhbGUgaXMgYWx3YXlzIHNsaWdodGx5IHBhaW5mdWwgYmVjYXVzZSBvZiBp bnRlcmRlcGVuZGVuY2llcyBhbmQgc3R5bGUgY2hlY2tpbmcgaXNzdWVzLg0KDQogIFBhdWwNCg0K PiANCj4gSnVlcmdlbg0KPiANCj4gX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX18NCj4gWGVuLWRldmVsIG1haWxpbmcgbGlzdA0KPiBYZW4tZGV2ZWxAbGlzdHMu eGVucHJvamVjdC5vcmcNCj4gaHR0cHM6Ly9saXN0cy54ZW5wcm9qZWN0Lm9yZy9tYWlsbWFuL2xp c3RpbmZvL3hlbi1kZXZlbA0K