From mboxrd@z Thu Jan 1 00:00:00 1970 From: Trond Myklebust Subject: Re: overlayfs NFS export Date: Fri, 7 Apr 2017 15:58:27 +0000 Message-ID: <1491580705.12269.3.camel@primarydata.com> References: <1491577054.10609.1.camel@primarydata.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Return-path: Received: from us-smtp-delivery-194.mimecast.com ([216.205.24.194]:52217 "EHLO us-smtp-delivery-194.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933619AbdDGP6p (ORCPT ); Fri, 7 Apr 2017 11:58:45 -0400 In-Reply-To: Content-Language: en-US Content-ID: <518D3140E0E7904C9316474938126436@namprd11.prod.outlook.com> Sender: linux-unionfs-owner@vger.kernel.org List-Id: linux-unionfs@vger.kernel.org To: "miklos@szeredi.hu" , "amir73il@gmail.com" Cc: "bfields@fieldses.org" , "viro@zeniv.linux.org.uk" , "jlayton@poochiereds.net" , "linux-unionfs@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" T24gRnJpLCAyMDE3LTA0LTA3IGF0IDE4OjQ1ICswMzAwLCBBbWlyIEdvbGRzdGVpbiB3cm90ZToN Cj4gT24gRnJpLCBBcHIgNywgMjAxNyBhdCA2OjI4IFBNLCBNaWtsb3MgU3plcmVkaSA8bWlrbG9z QHN6ZXJlZGkuaHU+DQo+IHdyb3RlOg0KPiA+IE9uIEZyaSwgQXByIDcsIDIwMTcgYXQgNDo1NyBQ TSwgVHJvbmQgTXlrbGVidXN0IDx0cm9uZG15QHByaW1hcnlkYXQNCj4gPiBhLmNvbT4gd3JvdGU6 DQo+ID4gDQo+ID4gPiBXaGF0IGlzIHRoZSBwcm9ibGVtIHlvdSBhcmUgdHJ5aW5nIHRvIHNvbHZl Pw0KPiA+IA0KPiA+IFRoZSBwcm9ibGVtIGlzIGdldHRpbmcgYSBwZXJzaXN0ZW50IGZpbGUgaGFu ZGxlIGZvciBvdmVybGF5ZnMNCj4gPiBmaWxlcy4NCj4gDQo+IFRoYXQgaXMgb25seSBwYXJ0IG9m IHRoZSBwcm9ibGVtIGFuZCB0aGUgcG9pbnQgSSB3YXMgdHJ5aW5nIHRvDQo+IGV4cGxvcmUgaXMg dGhhdCB3ZSBkb24ndCBuZWVkIHRvIHNvbHZlIGl0IGF0IGFsbCAoc2VlIGJlbG93KS4NCg0KWW91 IGRvbid0LCBpZiB5b3UgYXJlIHdpbGxpbmcgdG8gbGl2ZSB3aXRoIG5vbi1QT1NJWCBzZW1hbnRp Y3MuDQpPdGhlcndpc2UgeW91IGRvLg0KDQo+IA0KPiBUaGUgb3RoZXIgcGFydCBvZiB0aGUgcHJv YmxlbSBpcyBnZXR0aW5nIGEgcGVyc2lzdGVudCBoYW5kbGUgZm9yDQo+IG92ZXJsYXlmcyBkaXJl Y3Rvcmllcy4NCj4gDQo+IFdoeSB0aGlzIHNlY29uZCBwcm9ibGVtIGlzIGhhcmQgaXMgdG9vIGRp ZmZpY3VsdCB0byBleHBsYWluIHRvDQo+IG5vbi1vdmVybGF5ZnMgZm9sa3MsIGJ1dCBNaWtsb3Mg YW5kIEkgc3RhcnRlZCBwbGF5aW5nIGFyb3VuZCB3aXRoIGFuDQo+IGlkZWEuDQo+IA0KPiA+IA0K PiA+IE9uZSBpZGVhIHN1Z2dlc3RlZCBieSBWaXJvIGlzIHRvIGNyZWF0ZSBhIGR1bW15IGlub2Rl IG9uIHRoZSB1cHBlcg0KPiA+IGxheWVyIHdoZW5ldmVyIHdlIGxvb2sgdXAgYSBkZW50cnkgaW4g dGhlIG92ZXJsYXkgZmlsZXN5c3RlbS7CoMKgVGhlbg0KPiA+IHdlDQo+IA0KPiBTbyB0aGF0IGlk ZWEgaXMgbm90IHJlbGV2YW50IGZvciBkaXJlY3RvcmllcyAoSSB0aGluaykNCj4gDQo+ID4gaGF2 ZSBhbiBpbm9kZSBudW1iZXIgcmVzZXJ2ZWQgZm9yIHRoZSBmaWxlIGlmIGl0IG5lZWRzIHRvIGJl IGNvcGllZA0KPiA+IHVwLiBUaGlzIHNvbHZlcyB0aGUgZmlsZSBoYW5kbGUgcHJvYmxlbSwgc2lu Y2Ugd2UgY2FuIGdlbmVyYXRlIGENCj4gPiBwYXRoDQo+ID4gZnJvbSB0aGUgZmlsZSBoYW5kbGUg YW5kIGZyb20gdGhlcmUgZ2V0IHRoZSBvcmlnaW5hbCBsb3dlciBsYXllcg0KPiA+IGZpbGUNCj4g PiAoYXNzdW1lcyB0aGUgZmlsZSBoYW5kbGUgaGFzIHRoZSBwYXJlbnQgaGFuZGxlIGVuY29kZWQg YXMNCj4gPiB3ZWxsKS7CoMKgSWYNCj4gDQo+IEFwcGFyZW50bHksIHRoYXQgaXMgbm90IHRoZSBj YXNlIHdpdGgga25mc2QsIGJ1dCBpdCBkb2Vzbid0IG1hdHRlcg0KPiBmb3IgZGlyZWN0b3J5IGhh bmRsZXMgd2hpY2ggY2FuIGFsd2F5cyBiZSByZWNvbm5jZXRlZC4NCj4gDQo+ID4gdGhlIGZpbGUg aXMgY29waWVkIHVwLCB0aGUgZmlsZSBpcyBubyBsb25nZXIgYXNzaWNpYXRlZCB3aXRoIHRoZQ0K PiA+IGxvd2VyDQo+ID4gbGF5ZXIsIHdlIGp1c3QgbmVlZCB0byB1c2UgdGhlIHVwcGVyIGlub2Rl LCB0aGlzIHdvcmtzIHRvby7CoMKgQW5kDQo+ID4gYWxzbw0KPiA+IGZpbGVzIGNyZWF0ZWQgb24g dGhlIHVwcGVyIHdvcmsgZmluZS4NCj4gPiANCj4gPiBUaGUgb25seSBsaXR0bGUgcHJvYmxlbSBp cyB0aGF0IHdlIGFyZSBjcmVhdGluZyBsb3RzIG9mIGlub2RlcyBvbg0KPiA+IGRpc2sNCj4gPiBh bmQgbWVtb3J5IHRoYXQgdW50aWwgbm93IHdlIGhhdmVuJ3QuwqDCoEN1cnJlbnRseSBvdmVybGF5 ZnMgb25seQ0KPiA+IG1vZGlmaWVzIHVwcGVyIGxheWVyIGlmIHRoZXJlJ3MgYSBnb29kIHJlYXNv biB0byBiZWxpZXZlIHRoYXQgdGhlcmUNCj4gPiBpcw0KPiA+IHJlYWxseSBnb2luZyB0byBiZSBt b2RpZmljYXRpb24gKGUuZy4gd2hlbiBmaWxlIGlzIG9wZW5lZCBmb3INCj4gPiB3cml0ZSkuDQo+ ID4gDQo+ID4gVGhlIGFsdGVybmF0aXZlIGlzIGdlbmVyYXRlIGZpbGUgaGFuZGxlIGZyb20gbG93 ZXIgZmlsZSAoaWYgb24NCj4gPiBsb3dlcikNCj4gPiBhbmQgZnJvbSB1cHBlciBmaWxlIChpZiBv biB1cHBlcikuwqDCoMKgVGhlIGlzc3VlIGlzIGlmIHRoZSBmaWxlIGlzDQo+ID4gY29waWVkIHVw IGFuZCBnb2VzIGZyb20gbG93ZXIgdG8gdXBwZXIuwqDCoEluIHRoYXQgY2FzZSB3ZSBuZWVkIHRv DQo+ID4gZmluZA0KPiA+IHRoZSB1cHBlciBmaWxlIGZyb20gdGhlIGhhbmRsZSBnZW5lcmF0ZWQg ZnJvbSB0aGUgbG93ZXINCj4gPiBmaWxlLsKgwqDCoFRoaXMNCj4gDQo+IFNvIHdoeSBkbyB3ZSBy ZWFsbHkgbmVlZCB0byBmaW5kIHRoZSB1cHBlciBpbiB0aGF0IGNhc2U/DQo+IElmIHdlIGZvbGxv dyBteSBpZGVhLCB0aGVuIE5GUyByZWFkIHJlcXVlc3Qgd2l0aCBsb3dlciBoYW5kbGUNCj4gbWF5 IGJlIHNlcnZlZCBmcm9tIGxvd2VyIGlub2RlIGFuZCBORlMgd3JpdGUgcmVxdWVzdCB3aXRoIGEN Cj4gbG93ZXIgaGFuZGxlIHdpbGwgZ2V0IEVTVEFMRSBhbmQgd2lsbCB0cnkgdG8gbG9va3VwIGJ5 IHBhdGgNCj4gKEkgc3VwcG9zZT8pLg0KPiANCg0KVGhlIGNsaWVudCB3aWxsIG5ldmVyIHRyeSB0 byByZWNvdmVyIGZyb20gYW4gRVNUQUxFIGVycm9yIHRoYXQgaXMNCnJldHVybmVkIG9uIGEgZmls ZSBpdCBoYXMgYWxyZWFkeSBvcGVuZWQuIFRoYXQgd291bGQgY2F1c2UgZGF0YQ0KY29ycnVwdGlv biBpZiB0aGUgdXNlciB3ZXJlIHRvIGRvIHNvbWV0aGluZyBsaWtlICdybSBmb287IHRvdWNoIGZv bycgb24NCnRoZSBzZXJ2ZXI7IHdyaXRlcyB0aGF0IHdlcmUgaW50ZW5kZWQgZm9yIHRoZSBvbGQg ZmlsZSB3b3VsZCBzdWRkZW5seQ0KYmUgd3JpdHRlbiB0byB0aGUgbmV3IG9uZSBpbiB2aW9sYXRp b24gb2YgUE9TSVggSS9PIHJ1bGVzLg0KDQoNCklPVzogSW4gdGhlIGNhc2Ugd2hlcmUgV1JJVEUg cmV0dXJucyBFU1RBTEUsIHRoYXQgZXJyb3Igd2lsbCByZXN1bHQgaW4NCnRoZSBjbGllbnQgcmV0 dXJuaW5nIEVJTyB0byB0aGUgYXBwbGljYXRpb24gb24gdGhlIG5leHQgd3JpdGUoKSBvcg0KZnN5 bmMoKSBvciBjbG9zZSgpLiBUaGF0IGVycm9yIHdpbGwgcGVyc2lzdDsgYSByZXRyeSB3aWxsIG5v dCBjbGVhcg0KaXQuDQoNCi0tIA0KVHJvbmQgTXlrbGVidXN0DQpMaW51eCBORlMgY2xpZW50IG1h aW50YWluZXIsIFByaW1hcnlEYXRhDQp0cm9uZC5teWtsZWJ1c3RAcHJpbWFyeWRhdGEuY29tDQo=