Return-Path: Received: from mail-sn1nam02on0109.outbound.protection.outlook.com ([104.47.36.109]:30848 "EHLO NAM02-SN1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750852AbeFANQr (ORCPT ); Fri, 1 Jun 2018 09:16:47 -0400 From: Trond Myklebust To: "miklos@szeredi.hu" , "rgoldwyn@suse.de" CC: "bfields@fieldses.org" , "agruenba@redhat.com" , "linux-nfs@vger.kernel.org" , "linux-unionfs@vger.kernel.org" Subject: Re: nfs4_acl restricts copy_up in overlayfs Date: Fri, 1 Jun 2018 13:16:44 +0000 Message-ID: <828f320cde910a45983d91bddb6477d21c5cae33.camel@hammerspace.com> References: <2cf94c6b-e819-79af-4ac9-3b19d26dc6d9@suse.de> <75266c983a03f6dbfd5d1a39c94fa6d56a1a8a22.camel@hammerspace.com> <20180531004554.GA29116@fieldses.org> <128c74cb1507d7eab36ac8d32182dbbc7d3f9f88.camel@hammerspace.com> <95e00ce46fe1f5fed50fe24947eee0dda51e0140.camel@hammerspace.com> In-Reply-To: Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Sender: linux-nfs-owner@vger.kernel.org List-ID: T24gRnJpLCAyMDE4LTA2LTAxIGF0IDA2OjQwIC0wNTAwLCBHb2xkd3luIFJvZHJpZ3VlcyB3cm90 ZToNCj4gDQo+IE9uIDA1LzMxLzIwMTggMDc6NDkgUE0sIFRyb25kIE15a2xlYnVzdCB3cm90ZToN Cj4gPiBPbiBUaHUsIDIwMTgtMDUtMzEgYXQgMTY6NTMgLTA1MDAsIEdvbGR3eW4gUm9kcmlndWVz IHdyb3RlOg0KPiA+ID4gDQo+ID4gPiBPbiAwNS8zMS8yMDE4IDA4OjMwIEFNLCBNaWtsb3MgU3pl cmVkaSB3cm90ZToNCj4gPiA+ID4gT24gVGh1LCBNYXkgMzEsIDIwMTggYXQgMzoxMCBQTSwgVHJv bmQgTXlrbGVidXN0DQo+ID4gPiA+IDx0cm9uZG15QGhhbW1lcnNwYWNlLmNvbT4gd3JvdGU6DQo+ ID4gPiA+ID4gPiANCj4gPiA+ID4gPiA+IEkgdW5kZXJzdGFuZC4gIElnbm9yaW5nIG5mczRfYWNs IGluIG92ZXJsYXlmcyB3aWxsIGhhdmUgdGhlDQo+ID4gPiA+ID4gPiBzYW1lDQo+ID4gPiA+ID4g PiByZXN1bHQgYXMgYWRkaW5nIG5vYWNsIHRvIHRoZSB1bmRlcmx5aW5nIE5GUyBtb3VudC4NCj4g PiA+IA0KPiA+ID4gQWRkaW5nIG5vYWNsIGluIE5GUyBjbGllbnQgbW91bnQgaGFzIG5vIGFmZmVj dCB0byBuZnM0X2FjbC4gT25seQ0KPiA+ID4gaWYNCj4gPiA+IHlvdQ0KPiA+ID4gYWRkIG5vYWNs IGluIHRoZSB1bmRlcmx5aW5nIGZpbGVzeXN0ZW0gb2YgZXhwb3J0ZWQgZGlyZWN0b3J5IGluDQo+ ID4gPiB0aGUNCj4gPiA+IHNlcnZlciBkb2VzIHRoZSBuZnM0X2FjbCBnbyBhd2F5Lg0KPiA+IA0K PiA+IFRoYXQgd291bGQgYWxzbyBiZSBzcGVjaWZpYyB0byBMaW51eCBzZXJ2ZXJzLg0KPiANCj4g U29ycnksIEkgZG9uJ3QgaGF2ZSBhY2Nlc3MgdG8gb3RoZXIgTkZTIGJhc2VkIHNlcnZlcnMuIERv ZXMgdGhhdCBtZWFuDQo+ICJub2FjbCIgb3B0aW9uIG9uIE5GUyBjbGllbnQgbW91bnQgaGFzIGRp ZmZlcmVudCBpbnRlcnByZXRhdGlvbnMgZm9yDQo+IGRpZmZlcmVudCBORlMgc2VydmVycz8gT3Ig ZG8geW91IG1lYW4gdGhhdCBuZnM0X2FjbCBjYW5ub3QgYmUNCj4gZGlzYWJsZWQNCj4gZm9yIG90 aGVyIHR5cGUgb2Ygc2VydmVycz8NCg0KSSdtIG5vdCBzdXJlIGl0IGV2ZW4gbWFrZXMgc2Vuc2Ug dG8gdHVybiBvZmYgZmlsZXN5c3RlbSBhY2xzIGlmIHlvdXINCnVuZGVybHlpbmcgZmlsZXN5c3Rl bSBpcyBzb21ldGhpbmcgbGlrZSB6ZnMgb3IgYXBmcyAobGV0IGFsb25lIE5URlMpLg0KTGludXgg cmVhbGx5IGlzIGJlaGluZCB0aGUgY3VydmUgaGVyZS4NCg0KPiA+IA0KPiA+IFNvIGlmIHRoYXQg aXMgeW91ciBmaW5hbCBkZWNpc2lvbiwgdGhlbiB3aHkgbm90IGp1c3Qgc3RhdGUgaW4gdGhlDQo+ ID4gb3ZlcmxheWZzIG1hbnBhZ2UgdGhhdA0KPiANCj4gTm8sIHRoYXQgaXMgbm90IG15IGZpbmFs IGRlY2lzaW9uLiBOZWl0aGVyIGlzIGl0IGZvciBtZSB0byBtYWtlLiBJIGFtDQo+IG1lcmVseSB0 cnlpbmcgdG8gZmluZCBhIHdheSB0byBtYWtlIHdyaXRlcyBvbiBvdmVybGF5ZnMgcG9zc2libGUg d2l0aA0KPiBORlN2NCBpbiB0aGUgbG93ZXIgbGF5ZXIuDQo+IA0KDQouLi5hbmQgYWxsIEknbSBk b2luZyBpcyBwb2ludGluZyBvdXQgdGhhdCBhcyBsb25nIGFzIHlvdSBpbnNpc3Qgb24NCmNsaWVu dCBlbmZvcmNlbWVudCBvZiBmaWxlIHNlY3VyaXR5LCB0aGVuIHlvdSBhcmUgaGVhdmlseSBsaW1p dGluZyB0aGUNCmxpc3Qgb2Ygc2VydmVycyBhbmQgc2VydmVyIGNvbmZpZ3VyYXRpb25zIHRoYXQg eW91IHdpbGwgYmUgYWJsZSB0byB3b3JrDQpzYWZlbHkgd2l0aC4gVGhlcmUgaXMgYSByZWFzb24g d2h5LCBpbiBhbGwgdGhlIDMwIHllYXJzIHNpbmNlIHRoZSBORlN2Mg0Kc3BlYyB3YXMgcmVsZWFz ZWQsIG5vYm9keSBoYXMgYnVpbHQgc3VjaCBhIGNsaWVudC4NCg0KLS0gDQpUcm9uZCBNeWtsZWJ1 c3QNCkxpbnV4IE5GUyBjbGllbnQgbWFpbnRhaW5lciwgSGFtbWVyc3BhY2UNCnRyb25kLm15a2xl YnVzdEBoYW1tZXJzcGFjZS5jb20NCg0K