Return-Path: Received: from mail-cys01nam02on0128.outbound.protection.outlook.com ([104.47.37.128]:45600 "EHLO NAM02-CY1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755894AbeEaRws (ORCPT ); Thu, 31 May 2018 13:52:48 -0400 From: Trond Myklebust To: "bfields@fieldses.org" , "miklos@szeredi.hu" CC: "agruenba@redhat.com" , "linux-nfs@vger.kernel.org" , "rgoldwyn@suse.de" , "linux-unionfs@vger.kernel.org" Subject: Re: nfs4_acl restricts copy_up in overlayfs Date: Thu, 31 May 2018 17:52:45 +0000 Message-ID: <422b7b0d5911de1d60464f6a4fdc1a1753af6cde.camel@hammerspace.com> References: <2cf94c6b-e819-79af-4ac9-3b19d26dc6d9@suse.de> <75266c983a03f6dbfd5d1a39c94fa6d56a1a8a22.camel@hammerspace.com> <20180531004554.GA29116@fieldses.org> <128c74cb1507d7eab36ac8d32182dbbc7d3f9f88.camel@hammerspace.com> <20180531140619.GA1298@fieldses.org> In-Reply-To: Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Sender: linux-nfs-owner@vger.kernel.org List-ID: T24gVGh1LCAyMDE4LTA1LTMxIGF0IDE2OjI2ICswMjAwLCBNaWtsb3MgU3plcmVkaSB3cm90ZToN Cj4gT24gVGh1LCBNYXkgMzEsIDIwMTggYXQgNDowNiBQTSwgYmZpZWxkc0BmaWVsZHNlcy5vcmcN Cj4gPGJmaWVsZHNAZmllbGRzZXMub3JnPiB3cm90ZToNCj4gPiBPbiBUaHUsIE1heSAzMSwgMjAx OCBhdCAwMzozMDowNFBNICswMjAwLCBNaWtsb3MgU3plcmVkaSB3cm90ZToNCj4gPiA+IE9uIFRo dSwgTWF5IDMxLCAyMDE4IGF0IDM6MTAgUE0sIFRyb25kIE15a2xlYnVzdA0KPiA+ID4gPHRyb25k bXlAaGFtbWVyc3BhY2UuY29tPiB3cm90ZToNCj4gPiA+ID4gT24gVGh1LCAyMDE4LTA1LTMxIGF0 IDE0OjU1ICswMjAwLCBNaWtsb3MgU3plcmVkaSB3cm90ZToNCj4gPiA+ID4gPiBPbiBUaHUsIE1h eSAzMSwgMjAxOCBhdCAyOjQ3IFBNLCBUcm9uZCBNeWtsZWJ1c3QgPHRyb25kbXlAaGFtDQo+ID4g PiA+ID4gbWVyc3BhY2UuY29tPiB3cm90ZToNCj4gPiA+ID4gPiA+IEknbSBzdGlsbCBpbiBzdHJv bmcgZGlzYWdyZWVtZW50IHdpdGggdGhlIG1vZGVsIHlvdSBhcmUNCj4gPiA+ID4gPiA+IHByZXNl bnRpbmcNCj4gPiA+ID4gPiA+IGhlcmUuIEl0IGlzIGEgY2xpZW50IGVuZm9yY2VkIG1vZGVsLCB3 aGljaCBpcyBub3QgZXZlcg0KPiA+ID4gPiA+ID4gZ29pbmcgdG8gYmUNCj4gPiA+ID4gPiA+IGNv bXBhdGlibGUgd2l0aCB0aGUgTkZTIG1vZGVsLg0KPiA+ID4gPiA+IA0KPiA+ID4gPiA+IEl0J3Mg dGhlIG9ubHkgc2FuZSBtb2RlbCB0aGF0IG92ZXJsYXlmcyBjYW4gZG8uDQo+ID4gPiA+ID4gDQo+ ID4gPiA+ID4gVGhpbmsgb2YgaXQgdGhpcyB3YXk6ICBjcmVhdGluZyBhbiBpbWFnZSBmaWxlIG9u IE5GUywNCj4gPiA+ID4gPiBmb3JtYXRpbmcgaXQgdG8NCj4gPiA+ID4gPiBleHQ0IGFuZCBtb3Vu dGluZyBpdCBsb2NhbGx5IHRocm91Z2ggdGhlIGxvb3AgZGV2aWNlIGlzIG5vdA0KPiA+ID4gPiA+ IGdvaW5nIHRvDQo+ID4gPiA+ID4gYmUgY29tcGF0aWJsZSB3aXRoIHRoZSBORlMgc2VjdXJpdHkg bW9kZWwgZWl0aGVyLiAgU2hvdWxkIHdlDQo+ID4gPiA+ID4gY2FyZT8NCj4gPiA+ID4gDQo+ID4g PiA+IFllcyB5b3Ugc2hvdWxkIGNhcmUgYmVjYXVzZSB5b3UgYXJlIHByb3Bvc2luZyB0aGF0IHRo ZSBzaW1wbGUNCj4gPiA+ID4gYWN0IG9mDQo+ID4gPiA+IG1vdW50aW5nIHRocm91Z2ggb3Zlcmxh eWZzIHdpbGwgY2hhbmdlIHdobyBjYW4gYWNjZXNzLCByZWFkIGFuZA0KPiA+ID4gPiBtb2RpZnkN Cj4gPiA+ID4gZXhpc3RpbmcgZmlsZXMgZnJvbSBhIE5GUyBzZXJ2ZXIuDQo+ID4gPiANCj4gPiA+ IE9ubHkgYWNjZXNzL3JlYWQ6IE5GUyBjYW4gb25seSBiZSByZWFkLW9ubHkgbGF5ZXIuICBTbyBp dCdzDQo+ID4gPiBpbXBvc3NpYmxlDQo+ID4gPiB0byBhY3R1YWxseSBtb2RpZnkgYSBmaWxlIG9u IE5GUyB0aHJvdWdoIG92ZXJsYXlmcy4NCj4gPiANCj4gPiBJbiBhZGRpdGlvbiB0byBiZWluZyBy ZWFkLW9ubHksIEkgYXNzdW1lIGl0J3MgYWxzbyB1bmNoYW5naW5nPyAgSQ0KPiA+IHdvbmRlcg0K PiA+IHdoeSB5b3UnZCB3YW50IHRvIHVzZSBORlMgYXQgYWxsIGZvciB0aGlzIGNhc2UtLXNoYXJp bmcgYSByZWFkLW9ubHkNCj4gPiBleHQ0LWZvcm1hdHRlZCBibG9jayBkZXZpY2Ugd291bGQgc2Vl bSBtb3JlIHN0cmFpZ2h0Zm9yd2FyZC4NCj4gDQo+IEFjdHVhbGx5IHdlIGNvdWxkIGFsbG93IGNo YW5nZXMgb24gdGhlIHNlcnZlciBzaWRlLiAgIE92ZXJsYXlmcyBzb3J0DQo+IG9mIGRvZXMgdGhp cyBhbHJlYWR5IChjYWxscyB1bmRlcmx5aW5nIGZzJ3MgLT5kX3JldmFsaWRhdGUoKSBmcm9tDQo+ IG92bF9kZW50cnlfcmV2YWxpZGF0ZSgpKS4gIFdoYXQncyBzdGlsbCBuZWVkZWQgaXMgdG8gZGV0 ZWN0IHJlbmFtZSBieQ0KPiByZWNoZWNraW5nIHBhcmVudCBhbmQgZF9uYW1lIHRvIG1hdGNoIG92 ZXJsYXkgZGVudHJ5J3MgcGFyZW50IGFuZA0KPiBkX25hbWUuDQo+IA0KPiBCdXQgYSBzaGFyZWQg YmxvY2sgZGV2IGNvdWxkIGJlIHVzZWQgaW4gbW9zdCBjYXNlcywgSSBndWVzcy4NCj4gDQoNCldo eSB3b3VsZCB5b3UgbmVlZCB0byBleHBvcnQgdGhlIGZpbGVzeXN0ZW0gYXMgcmVhZC1vbmx5IGlm IGl0IGlzIGdvaW5nDQp0byBiZSBvdmVybGF5ZWQgYW55d2F5PyBEbyB0aGUgcmVhZC1vbmx5IHBy b3RlY3Rpb24gb24gdGhlIGNsaWVudCBzaWRlLg0KDQotLSANClRyb25kIE15a2xlYnVzdA0KQ1RP LCBIYW1tZXJzcGFjZSBJbmMNCjQzMDAgRWwgQ2FtaW5vIFJlYWwsIFN1aXRlIDEwNQ0KTG9zIEFs dG9zLCBDQSA5NDAyMg0Kd3d3LmhhbW1lci5zcGFjZSBpZD0iLXgtZXZvLXNlbGVjdGlvbi1lbmQt bWFya2VyIj4=