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=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 4B879C169C4 for ; Mon, 11 Feb 2019 17:16:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 24BCC218A3 for ; Mon, 11 Feb 2019 17:16:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728193AbfBKRQR (ORCPT ); Mon, 11 Feb 2019 12:16:17 -0500 Received: from mga07.intel.com ([134.134.136.100]:64544 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726755AbfBKRQQ (ORCPT ); Mon, 11 Feb 2019 12:16:16 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 11 Feb 2019 09:16:09 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,359,1544515200"; d="scan'208";a="123625697" Received: from fmsmsx108.amr.corp.intel.com ([10.18.124.206]) by fmsmga008.fm.intel.com with ESMTP; 11 Feb 2019 09:16:09 -0800 Received: from FMSMSX109.amr.corp.intel.com (10.18.116.9) by FMSMSX108.amr.corp.intel.com (10.18.124.206) with Microsoft SMTP Server (TLS) id 14.3.408.0; Mon, 11 Feb 2019 09:16:09 -0800 Received: from crsmsx151.amr.corp.intel.com (172.18.7.86) by fmsmsx109.amr.corp.intel.com (10.18.116.9) with Microsoft SMTP Server (TLS) id 14.3.408.0; Mon, 11 Feb 2019 09:16:08 -0800 Received: from crsmsx101.amr.corp.intel.com ([169.254.1.57]) by CRSMSX151.amr.corp.intel.com ([169.254.3.79]) with mapi id 14.03.0415.000; Mon, 11 Feb 2019 11:16:07 -0600 From: "Weiny, Ira" To: "Williams, Dan J" , Daniel Borkmann CC: =?utf-8?B?QmrDtnJuIFTDtnBlbA==?= , Davidlohr Bueso , Andrew Morton , Linux MM , LKML , "David S . Miller" , "Topel, Bjorn" , "Karlsson, Magnus" , Netdev , Davidlohr Bueso Subject: RE: [PATCH 1/2] xsk: do not use mmap_sem Thread-Topic: [PATCH 1/2] xsk: do not use mmap_sem Thread-Index: AQHUwh8y/Z/k25QyB0Oc2wm5pV76vqXbMI2A//+lm9A= Date: Mon, 11 Feb 2019 17:16:06 +0000 Message-ID: <2807E5FD2F6FDA4886F6618EAC48510E79BCB3B9@CRSMSX101.amr.corp.intel.com> References: <20190207053740.26915-1-dave@stgolabs.net> <20190207053740.26915-2-dave@stgolabs.net> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-titus-metadata-40: eyJDYXRlZ29yeUxhYmVscyI6IiIsIk1ldGFkYXRhIjp7Im5zIjoiaHR0cDpcL1wvd3d3LnRpdHVzLmNvbVwvbnNcL0ludGVsMyIsImlkIjoiYWY2Y2EwYjQtYTAxYi00Zjg0LWE5NmEtOTFkNDdlMjg4YjM4IiwicHJvcHMiOlt7Im4iOiJDVFBDbGFzc2lmaWNhdGlvbiIsInZhbHMiOlt7InZhbHVlIjoiQ1RQX05UIn1dfV19LCJTdWJqZWN0TGFiZWxzIjpbXSwiVE1DVmVyc2lvbiI6IjE3LjEwLjE4MDQuNDkiLCJUcnVzdGVkTGFiZWxIYXNoIjoiak5rNERqakdyUE1oXC81Sm91RUFha0ZSRjBFXC85dE0ybEM1TFVaRUljUVRYdXp2dzRVTndJSW9UcUkzTXNBNkZOIn0= x-ctpclassification: CTP_NT dlp-product: dlpe-windows dlp-version: 11.0.400.15 dlp-reaction: no-action x-originating-ip: [172.18.205.10] 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 PiA+ID4+IC0tLQ0KPiA+ID4+ICBuZXQveGRwL3hkcF91bWVtLmMgfCA2ICsrLS0tLQ0KPiA+ID4+ ICAxIGZpbGUgY2hhbmdlZCwgMiBpbnNlcnRpb25zKCspLCA0IGRlbGV0aW9ucygtKQ0KPiA+ID4+ DQo+ID4gPj4gZGlmZiAtLWdpdCBhL25ldC94ZHAveGRwX3VtZW0uYyBiL25ldC94ZHAveGRwX3Vt ZW0uYyBpbmRleA0KPiA+ID4+IDVhYjIzNmM1YzlhNS4uMjVlMWU3NjY1NGE4IDEwMDY0NA0KPiA+ ID4+IC0tLSBhL25ldC94ZHAveGRwX3VtZW0uYw0KPiA+ID4+ICsrKyBiL25ldC94ZHAveGRwX3Vt ZW0uYw0KPiA+ID4+IEBAIC0yNjUsMTAgKzI2NSw4IEBAIHN0YXRpYyBpbnQgeGRwX3VtZW1fcGlu X3BhZ2VzKHN0cnVjdA0KPiB4ZHBfdW1lbSAqdW1lbSkNCj4gPiA+PiAgICAgICAgIGlmICghdW1l bS0+cGdzKQ0KPiA+ID4+ICAgICAgICAgICAgICAgICByZXR1cm4gLUVOT01FTTsNCj4gPiA+Pg0K PiA+ID4+IC0gICAgICAgZG93bl93cml0ZSgmY3VycmVudC0+bW0tPm1tYXBfc2VtKTsNCj4gPiA+ PiAtICAgICAgIG5wZ3MgPSBnZXRfdXNlcl9wYWdlcyh1bWVtLT5hZGRyZXNzLCB1bWVtLT5ucGdz LA0KPiA+ID4+IC0gICAgICAgICAgICAgICAgICAgICAgICAgICAgIGd1cF9mbGFncywgJnVtZW0t PnBnc1swXSwgTlVMTCk7DQo+ID4gPj4gLSAgICAgICB1cF93cml0ZSgmY3VycmVudC0+bW0tPm1t YXBfc2VtKTsNCj4gPiA+PiArICAgICAgIG5wZ3MgPSBnZXRfdXNlcl9wYWdlc19mYXN0KHVtZW0t PmFkZHJlc3MsIHVtZW0tPm5wZ3MsDQo+ID4gPj4gKyAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICBndXBfZmxhZ3MsICZ1bWVtLT5wZ3NbMF0pOw0KPiA+ID4+DQo+ID4gPg0KPiA+ID4g VGhhbmtzIGZvciB0aGUgcGF0Y2ghDQo+ID4gPg0KPiA+ID4gVGhlIGxpZmV0aW1lIG9mIHRoZSBw aW5uaW5nIGlzIHNpbWlsYXIgdG8gUkRNQSB1bWVtIG1hcHBpbmcsIHNvDQo+ID4gPiBpc24ndCBn dXBfbG9uZ3Rlcm0gcHJlZmVycmVkPw0KPiA+DQo+ID4gU2VlbXMgcmVhc29uYWJsZSBmcm9tIHJl YWRpbmcgd2hhdCBndXBfbG9uZ3Rlcm0gc2VlbXMgdG8gZG8uIERhdmlkbG9ocg0KPiA+IG9yIERh biwgYW55IHRob3VnaHRzIG9uIHRoZSBhYm92ZT8NCj4gDQo+IFllcywgYW55IGd1cCB3aGVyZSB0 aGUgbGlmZXRpbWUgb2YgdGhlIGNvcnJlc3BvbmRpbmcgcHV0X3BhZ2UoKSBpcyB1bmRlcg0KPiBk aXJlY3QgY29udHJvbCBvZiB1c2Vyc3BhY2Ugc2hvdWxkIGJlIHVzaW5nIHRoZSBfbG9uZ3Rlcm0g Zmxhdm9yIHRvDQo+IGNvb3JkaW5hdGUgYmUgY2FyZWZ1bCBpbiB0aGUgcHJlc2VuY2Ugb2YgZGF4 LiBJbiB0aGUgZGF4IGNhc2UgdGhlcmUgaXMgbm8gcGFnZQ0KPiBjYWNoZSBpbmRpcmVjdGlvbiB0 byBjb29yZGluYXRlIHRydW5jYXRlIHZzIHBhZ2UgcGlucy4gSXJhIGlzIGxvb2tpbmcgdG8gYWRk IGENCj4gImZhc3QgKyBsb25ndGVybSIgZmxhdm9yIGZvciBjYXNlcyBsaWtlIHRoaXMuDQoNClll cyBJJ20ganVzdCBhYm91dCByZWFkeSB3aXRoIGEgc21hbGwgcGF0Y2ggc2V0IHRvIGFkZCBhIEdV UCBmYXN0IGxvbmd0ZXJtLg0KDQpJIHRoaW5rIHRoaXMgc2hvdWxkIHdhaXQgZm9yIHRoYXQgc2Vy aWVzLg0KDQpJcmENCiANCg==