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=-3.8 required=3.0 tests=BAYES_00, 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 6CCF4C43457 for ; Fri, 9 Oct 2020 10:56:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1720822251 for ; Fri, 9 Oct 2020 10:56:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732121AbgJIK4V (ORCPT ); Fri, 9 Oct 2020 06:56:21 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([207.82.80.151]:50432 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731990AbgJIK4V (ORCPT ); Fri, 9 Oct 2020 06:56:21 -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-124-ERHMxqkFNqu-gjupEPL9Yw-1; Fri, 09 Oct 2020 11:56:17 +0100 X-MC-Unique: ERHMxqkFNqu-gjupEPL9Yw-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; Fri, 9 Oct 2020 11:56:16 +0100 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; Fri, 9 Oct 2020 11:56:16 +0100 From: David Laight To: 'Johannes Berg' , "linux-kernel@vger.kernel.org" CC: "nstange@suse.de" , "ap420073@gmail.com" , "netdev@vger.kernel.org" , "linux-wireless@vger.kernel.org" , "gregkh@linuxfoundation.org" , "rafael@kernel.org" Subject: RE: [RFC] debugfs: protect against rmmod while files are open Thread-Topic: [RFC] debugfs: protect against rmmod while files are open Thread-Index: AQHWnimt6sgsjnbqOUy4QqWuAHTYD6mPGQ+Q Date: Fri, 9 Oct 2020 10:56:16 +0000 Message-ID: <8fe62082d9774a1fb21894c27e140318@AcuMS.aculab.com> References: <4a58caee3b6b8975f4ff632bf6d2a6673788157d.camel@sipsolutions.net> <20201009124113.a723e46a677a.Ib6576679bb8db01eb34d3dce77c4c6899c28ce26@changeid> (sfid-20201009_124139_179083_C8D99C3A) <2a333c2a50c676c461c1e2da5847dd4024099909.camel@sipsolutions.net> In-Reply-To: <2a333c2a50c676c461c1e2da5847dd4024099909.camel@sipsolutions.net> 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 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com 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: netdev@vger.kernel.org RnJvbTogSm9oYW5uZXMgQmVyZw0KPiBTZW50OiAwOSBPY3RvYmVyIDIwMjAgMTE6NDgNCj4gDQo+ IE9uIEZyaSwgMjAyMC0xMC0wOSBhdCAxMjo0MSArMDIwMCwgSm9oYW5uZXMgQmVyZyB3cm90ZToN Cj4gDQo+ID4gSWYgdGhlIGZvcHMgZG9lc24ndCBoYXZlIGEgcmVsZWFzZSBtZXRob2QsIHdlIGRv bid0IGV2ZW4gbmVlZA0KPiA+IHRvIGtlZXAgYSByZWZlcmVuY2UgdG8gdGhlIHJlYWxfZm9wcywg d2UgY2FuIGp1c3QgZm9wc19wdXQoKQ0KPiA+IHRoZW0gYWxyZWFkeSBpbiBkZWJ1Z2ZzIHJlbW92 ZSwgYW5kIGEgbGF0ZXIgZnVsbF9wcm94eV9yZWxlYXNlKCkNCj4gPiB3b24ndCBjYWxsIGFueXRo aW5nIGFueXdheSAtIHRoaXMganVzdCBjcmFzaGVkL1VBRmVkIGJlY2F1c2UgaXQNCj4gPiB1c2Vk IHJlYWxfZm9wcywgbm90IGJlY2F1c2UgdGhlcmUgd2FzIGFjdHVhbGx5IGEgKG5vdyBpbnZhbGlk KQ0KPiA+IHJlbGVhc2UoKSBtZXRob2QuDQo+IA0KPiBJIGFjdHVhbGx5IGltcGxlbWVudGVkIHNv bWV0aGluZyBhIGJpdCBiZXR0ZXIgdGhhbiB3aGF0IEkgZGVzY3JpYmVkIC0gd2UNCj4gbmV2ZXIg bmVlZCBhIHJlZmVyZW5jZSB0byB0aGUgcmVhbF9mb3BzIGZvciB0aGUgcmVsZWFzZSBtZXRob2Qg YWxvbmUsDQo+IGFuZCB0aGF0IG1lYW5zIGlmIHRoZSByZWxlYXNlIG1ldGhvZCBpcyBpbiB0aGUg a2VybmVsIGltYWdlLCByYXRoZXIgdGhhbg0KPiBhIG1vZHVsZSwgaXQgY2FuIHN0aWxsIGJlIGNh bGxlZC4NCj4gDQo+IFRoYXQgdG9nZXRoZXIgc2hvdWxkIHJlZHVjZSB0aGUgfjExNyBwbGFjZXMg eW91IGNoYW5nZWQgaW4gdGhlIGxhcmdlDQo+IHBhdGNoc2V0IHRvIGFyb3VuZCBhIGhhbmRmdWwu DQoNCklzIHRoZXJlIGFuIGVxdWl2YWxlbnQgcHJvYmxlbSBmb3Igbm9ybWFsIGNkZXYgb3BlbnMN CmluIGFueSBtb2R1bGVzPw0KDQoJRGF2aWQNCg0KLQ0KUmVnaXN0ZXJlZCBBZGRyZXNzIExha2Vz aWRlLCBCcmFtbGV5IFJvYWQsIE1vdW50IEZhcm0sIE1pbHRvbiBLZXluZXMsIE1LMSAxUFQsIFVL DQpSZWdpc3RyYXRpb24gTm86IDEzOTczODYgKFdhbGVzKQ0K