Return-Path: Received: from us-smtp-delivery-194.mimecast.com ([216.205.24.194]:41060 "EHLO us-smtp-delivery-194.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751128AbcIQTcP (ORCPT ); Sat, 17 Sep 2016 15:32:15 -0400 From: Trond Myklebust To: "green@linuxhacker.ru" CC: "anna.schumaker@netapp.com" , "linux-nfs@vger.kernel.org" Subject: Re: [PATCH v5 00/25] Fix delegation behaviour when server revokes some state Date: Sat, 17 Sep 2016 19:32:09 +0000 Message-ID: <1474140727.7526.1.camel@primarydata.com> References: <1474089213-104014-1-git-send-email-trond.myklebust@primarydata.com> <838E325D-2DA1-4229-A046-76316302F813@linuxhacker.ru> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-nfs-owner@vger.kernel.org List-ID: T24gU2F0LCAyMDE2LTA5LTE3IGF0IDE1OjE2IC0wNDAwLCBPbGVnIERyb2tpbiB3cm90ZToNCj4g T24gU2VwIDE3LCAyMDE2LCBhdCAyOjE4IFBNLCBUcm9uZCBNeWtsZWJ1c3Qgd3JvdGU6DQo+IA0K PiA+IA0KPiA+IA0KPiA+ID4gDQo+ID4gPiBPbiBTZXAgMTcsIDIwMTYsIGF0IDE0OjA0LCBPbGVn IERyb2tpbiA8Z3JlZW5AbGludXhoYWNrZXIucnU+DQo+ID4gPiB3cm90ZToNCj4gPiA+IA0KPiA+ ID4gDQo+ID4gPiBPbiBTZXAgMTcsIDIwMTYsIGF0IDE6MTMgQU0sIFRyb25kIE15a2xlYnVzdCB3 cm90ZToNCj4gPiA+IA0KPiA+ID4gPiANCj4gPiA+ID4gQWNjb3JkaW5nIHRvIFJGQzU2NjEsIGlm IGFueSBvZiB0aGUgU0VRVUVOQ0Ugc3RhdHVzIGJpdHMNCj4gPiA+ID4gU0VRNF9TVEFUVVNfRVhQ SVJFRF9BTExfU1RBVEVfUkVWT0tFRCwNCj4gPiA+ID4gU0VRNF9TVEFUVVNfRVhQSVJFRF9TT01F X1NUQVRFX1JFVk9LRUQsDQo+ID4gPiA+IFNFUTRfU1RBVFVTX0FETUlOX1NUQVRFX1JFVk9LRUQs DQo+ID4gPiA+IG9yIFNFUTRfU1RBVFVTX1JFQ0FMTEFCTEVfU1RBVEVfUkVWT0tFRCBhcmUgc2V0 LCB0aGVuIHdlIG5lZWQNCj4gPiA+ID4gdG8gdXNlDQo+ID4gPiA+IFRFU1RfU1RBVEVJRCB0byBm aWd1cmUgb3V0IHdoaWNoIHN0YXRlaWRzIGhhdmUgYmVlbiByZXZva2VkLCBzbw0KPiA+ID4gPiB3 ZQ0KPiA+ID4gPiBjYW4gYWNrbm93bGVkZ2UgdGhlIGxvc3Mgb2Ygc3RhdGUgdXNpbmcgRlJFRV9T VEFURUlELg0KPiA+ID4gPiANCj4gPiA+ID4gV2hpbGUgd2UgYWxyZWFkeSBkbyB0aGlzIGZvciBv cGVuIGFuZCBsb2NrIHN0YXRlLCB3ZSBoYXZlIG5vdA0KPiA+ID4gPiBiZWVuIGRvaW5nDQo+ID4g PiA+IHNvIGZvciBhbGwgdGhlIGRlbGVnYXRpb25zLg0KPiA+ID4gPiANCj4gPiA+ID4gdjI6IG5m c192NF8yX21pbm9yX29wcyBuZWVkcyB0byBzZXQgLnRlc3RfYW5kX2ZyZWVfZXhwaXJlZCB0b28N Cj4gPiA+ID4gdjM6IE5vdyB3aXRoIGFkZGVkIGxvY2sgcmV2b2tlIGZpeGVzIGFuZA0KPiA+ID4g PiBjbG9zZS9kZWxlZ3JldHVybi9sb2NrdSBmaXhlcw0KPiA+ID4gPiB2NDogQ2xvc2UgYSBidW5j aCBvZiBjb3JuZXIgY2FzZXMNCj4gPiA+ID4gdjU6IFJlcG9ydCByZXZva2VkIGRlbGVnYXRpb25z IGFzIGludmFsaWQgaW4NCj4gPiA+ID4gbmZzX2hhdmVfZGVsZWdhdGlvbigpDQo+ID4gPiA+IMKg Rml4IGFuIGluZmluaXRlIGxvb3AgaW4gbmZzX3JlYXBfZXhwaXJlZF9kZWxlZ2F0aW9ucy4NCj4g PiA+ID4gwqBGaXhlcyBmb3Igb3RoZXIgbG9vcGluZyBiZWhhdmlvdXINCj4gPiA+IA0KPiA+ID4g VGhpcyB0aW1lIGFyb3VuZCB0aGUgbG9vcCBzZWVtcyB0byBiZSBtb3JlIHRpZ2h0LA0KPiA+ID4g aW4gdXNlcnNwYWNlIHByb2Nlc3M6DQo+ID4gPiANCj4gPiA+IFsgOTE5Ny4yNTY1NzFdIC0tPiBu ZnM0MV9jYWxsX3N5bmNfcHJlcGFyZSBkYXRhLT5zZXFfc2VydmVyDQo+ID4gPiBmZmZmODgwMGE3 M2NlMDAwDQo+ID4gPiBbIDkxOTcuMjU2NTcyXSAtLT4gbmZzNDFfc2V0dXBfc2VxdWVuY2UNCj4g PiA+IFsgOTE5Ny4yNTY1NzNdIC0tPiBuZnM0X2FsbG9jX3Nsb3QgdXNlZF9zbG90cz0wMDAwDQo+ ID4gPiBoaWdoZXN0X3VzZWQ9NDI5NDk2NzI5NSBtYXhfc2xvdHM9MzENCj4gPiA+IFsgOTE5Ny4y NTY1NzRdIDwtLSBuZnM0X2FsbG9jX3Nsb3QgdXNlZF9zbG90cz0wMDAxIGhpZ2hlc3RfdXNlZD0w DQo+ID4gPiBzbG90aWQ9MA0KPiA+ID4gWyA5MTk3LjI1NjU3NF0gPC0tIG5mczQxX3NldHVwX3Nl cXVlbmNlIHNsb3RpZD0wIHNlcWlkPTE0MDEzODAwDQo+ID4gPiBbIDkxOTcuMjU2NTgyXSBlbmNv ZGVfc2VxdWVuY2U6IHNlc3Npb25pZD0xNDc0MTI2MTcwOjE6MjowDQo+ID4gPiBzZXFpZD0xNDAx MzgwMCBzbG90aWQ9MCBtYXhfc2xvdGlkPTAgY2FjaGVfdGhpcz0xDQo+ID4gPiBbIDkxOTcuMjU2 NzU1XSAtLT4gbmZzNF9hbGxvY19zbG90IHVzZWRfc2xvdHM9MDAwMSBoaWdoZXN0X3VzZWQ9MA0K PiA+ID4gbWF4X3Nsb3RzPTMxDQo+ID4gPiBbIDkxOTcuMjU2NzU2XSA8LS0gbmZzNF9hbGxvY19z bG90IHVzZWRfc2xvdHM9MDAwMyBoaWdoZXN0X3VzZWQ9MQ0KPiA+ID4gc2xvdGlkPTENCj4gPiA+ IFsgOTE5Ny4yNTY3NTddIG5mczRfZnJlZV9zbG90OiBzbG90aWQgMSBoaWdoZXN0X3VzZWRfc2xv dGlkIDANCj4gPiA+IFsgOTE5Ny4yNTY3NThdIG5mczQxX3NlcXVlbmNlX3Byb2Nlc3M6IEVycm9y IDAgZnJlZSB0aGUgc2xvdMKgDQo+ID4gPiBbIDkxOTcuMjU2NzYwXSBuZnM0X2ZyZWVfc2xvdDog c2xvdGlkIDAgaGlnaGVzdF91c2VkX3Nsb3RpZA0KPiA+ID4gNDI5NDk2NzI5NQ0KPiA+ID4gWyA5 MTk3LjI1Njc3OV0gLS0+IG5mc19wdXRfY2xpZW50KHsyfSkNCj4gPiANCj4gPiBXaGF0IG9wZXJh dGlvbiBpcyB0aGUgdXNlcnNwYWNlIHByb2Nlc3MgaGFuZ2luZyBvbj8gRG8geW91IGhhdmUgYQ0K PiA+IHN0YWNrIHRyYWNlIGZvciBpdD8NCj4gDQo+IHNlZW1zIHRvIGJlIG9wZW5fY3JlYXRlLT50 cnVuY2F0ZS0+c3NldGF0dHIgY29taW5nIGZyb206DQo+IGNwIC9iaW4vc2xlZXAgL21udC9uZnMy L3JhY2VyLzEyDQo+IA0KPiAoZ2RiKSBidA0KPiAjMMKgwqBuZnM0MV9zZXR1cF9zZXF1ZW5jZSAo c2Vzc2lvbj0weGZmZmY4ODAwNWE4NTM4MDAsDQo+IGFyZ3M9MHhmZmZmODgwMGE3MjUzYjgwLMKg DQo+IMKgwqDCoMKgcmVzPTB4ZmZmZjg4MDBhNzI1M2I0OCwgdGFzaz0weGZmZmY4ODAwYjBlYjBm MDApDQo+IMKgwqDCoMKgYXQgL2hvbWUvZ3JlZW4vYmsvbGludXgtdGVzdC9mcy9uZnMvbmZzNHBy b2MuYzo4NzYNCj4gIzHCoMKgMHhmZmZmZmZmZjgxM2E3NTFjIGluIG5mczQxX2NhbGxfc3luY19w cmVwYXJlICh0YXNrPTxvcHRpbWl6ZWQNCj4gb3V0PizCoA0KPiDCoMKgwqDCoGNhbGxkYXRhPTB4 ZmZmZjg4MDBhNzI1M2I4MCkNCj4gwqDCoMKgwqBhdCAvaG9tZS9ncmVlbi9iay9saW51eC10ZXN0 L2ZzL25mcy9uZnM0cHJvYy5jOjk2Ng0KPiAjMsKgwqAweGZmZmZmZmZmODE4NWM2MzkgaW4gcnBj X3ByZXBhcmVfdGFzayAodGFzaz08b3B0aW1pemVkIG91dD4pDQo+IMKgwqDCoMKgYXQgL2hvbWUv Z3JlZW4vYmsvbGludXgtdGVzdC9uZXQvc3VucnBjL3NjaGVkLmM6NjgzDQo+ICMzwqDCoDB4ZmZm ZmZmZmY4MTg1ZjEyYiBpbiBfX3JwY19leGVjdXRlICh0YXNrPTB4ZmZmZjg4MDA1YTg1MzgwMCkN Cj4gwqDCoMKgwqBhdCAvaG9tZS9ncmVlbi9iay9saW51eC10ZXN0L25ldC9zdW5ycGMvc2NoZWQu Yzo3NzUNCj4gIzTCoMKgMHhmZmZmZmZmZjgxODYxN2I0IGluIHJwY19leGVjdXRlICh0YXNrPTB4 ZmZmZjg4MDA1YTg1MzgwMCkNCj4gwqDCoMKgwqBhdCAvaG9tZS9ncmVlbi9iay9saW51eC10ZXN0 L25ldC9zdW5ycGMvc2NoZWQuYzo4NDMNCj4gIzXCoMKgMHhmZmZmZmZmZjgxODUzOWI5IGluIHJw Y19ydW5fdGFzaw0KPiAodGFza19zZXR1cF9kYXRhPTB4ZmZmZjg4MDBhNzI1M2E1MCkNCj4gwqDC oMKgwqBhdCAvaG9tZS9ncmVlbi9iay9saW51eC10ZXN0L25ldC9zdW5ycGMvY2xudC5jOjEwNTIN Cj4gIzbCoMKgMHhmZmZmZmZmZjgxM2E3NWUzIGluIG5mczRfY2FsbF9zeW5jX3NlcXVlbmNlIChj bG50PTxvcHRpbWl6ZWQNCj4gb3V0PizCoA0KPiDCoMKgwqDCoHNlcnZlcj08b3B0aW1pemVkIG91 dD4sIG1zZz08b3B0aW1pemVkIG91dD4sIGFyZ3M9PG9wdGltaXplZA0KPiBvdXQ+LMKgDQo+IMKg wqDCoMKgcmVzPTxvcHRpbWl6ZWQgb3V0PikgYXQgL2hvbWUvZ3JlZW4vYmsvbGludXgtDQo+IHRl c3QvZnMvbmZzL25mczRwcm9jLmM6MTA1MQ0KPiAjN8KgwqAweGZmZmZmZmZmODEzYjQ2NDUgaW4g bmZzNF9jYWxsX3N5bmMgKGNhY2hlX3JlcGx5PTxvcHRpbWl6ZWQNCj4gb3V0PizCoA0KPiDCoMKg wqDCoHJlcz08b3B0aW1pemVkIG91dD4sIGFyZ3M9PG9wdGltaXplZCBvdXQ+LCBtc2c9PG9wdGlt aXplZCBvdXQ+LMKgDQo+IMKgwqDCoMKgc2VydmVyPTxvcHRpbWl6ZWQgb3V0PiwgY2xudD08b3B0 aW1pemVkIG91dD4pDQo+IMKgwqDCoMKgYXQgL2hvbWUvZ3JlZW4vYmsvbGludXgtdGVzdC9mcy9u ZnMvbmZzNHByb2MuYzoxMDY5DQo+ICM4wqDCoF9uZnM0X2RvX3NldGF0dHIgKHN0YXRlPTxvcHRp bWl6ZWQgb3V0PiwgY3JlZD08b3B0aW1pemVkIG91dD4swqANCj4gwqDCoMKgwqByZXM9PG9wdGlt aXplZCBvdXQ+LCBhcmc9PG9wdGltaXplZCBvdXQ+LCBpbm9kZT08b3B0aW1pemVkIG91dD4pDQo+ IC0tLVR5cGUgPHJldHVybj4gdG8gY29udGludWUsIG9yIHEgPHJldHVybj4gdG8gcXVpdC0tLQ0K PiDCoMKgwqDCoGF0IC9ob21lL2dyZWVuL2JrL2xpbnV4LXRlc3QvZnMvbmZzL25mczRwcm9jLmM6 MjkxNg0KPiAjOcKgwqBuZnM0X2RvX3NldGF0dHIgKGlub2RlPTB4ZmZmZjg4MDA3OWIxNTJhOCwg Y3JlZD08b3B0aW1pemVkIG91dD4swqANCj4gwqDCoMKgwqBmYXR0cj08b3B0aW1pemVkIG91dD4s IHNhdHRyPTxvcHRpbWl6ZWQgb3V0PiwNCj4gc3RhdGU9MHhmZmZmODgwMDYwNTg4ZTAwLMKgDQo+ IMKgwqDCoMKgaWxhYmVsPTxvcHRpbWl6ZWQgb3V0Piwgb2xhYmVsPTB4MCA8aXJxX3N0YWNrX3Vu aW9uPikNCj4gwqDCoMKgwqBhdCAvaG9tZS9ncmVlbi9iay9saW51eC10ZXN0L2ZzL25mcy9uZnM0 cHJvYy5jOjI5NTUNCj4gIzEwIDB4ZmZmZmZmZmY4MTNiNGExNiBpbiBuZnM0X3Byb2Nfc2V0YXR0 ciAoZGVudHJ5PTxvcHRpbWl6ZWQgb3V0PizCoA0KPiDCoMKgwqDCoGZhdHRyPTB4ZmZmZjg4MDBh NzI1M2I4MCwgc2F0dHI9MHhmZmZmODgwMGE3MjUzYjQ4KQ0KPiDCoMKgwqDCoGF0IC9ob21lL2dy ZWVuL2JrL2xpbnV4LXRlc3QvZnMvbmZzL25mczRwcm9jLmM6MzY4NA0KPiAjMTEgMHhmZmZmZmZm ZjgxMzhmMWNiIGluIG5mc19zZXRhdHRyIChkZW50cnk9MHhmZmZmODgwMDc0MGMxMDAwLMKgDQo+ wqANCg0KQ29vbCEgRG9lcyB0aGUgZm9sbG93aW5nIGhlbHA/DQoNCjg8LS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tDQpGcm9tIDk4ZGRm MzJhOTljZmUwMGU5YWUxMDgwNDRlMmJlNjc1MjI5ODc1MTEgTW9uIFNlcCAxNyAwMDowMDowMCAy MDAxDQpGcm9tOiBUcm9uZCBNeWtsZWJ1c3QgPHRyb25kLm15a2xlYnVzdEBwcmltYXJ5ZGF0YS5j b20+DQpEYXRlOiBTYXQsIDE3IFNlcCAyMDE2IDE1OjI3OjEwIC0wNDAwDQpTdWJqZWN0OiBbUEFU Q0hdIE5GUzogRG9uJ3QgYXNzdW1lIGEgc3RhdGVpZCByZXByZXNlbnRzIGEgZGVsZWdhdGlvbiBp bg0KIG5mczRfZG9faGFuZGxlX2V4Y2VwdGlvbg0KDQpJZiB0aGUgc3RhdGVpZCBiZWluZyBwYXNz ZWQgdG8gdGhlIGVycm9yIGhhbmRsZXIgaXMgbm90IGEgZGVsZWdhdGlvbg0Kc3RhdGVpZCwgd2Ug d2FudCB0byBtYXJrIHRoZSBsb2Nrcy9vcGVuX3N0YXRlIGl0IGRvZXMgcmVwcmVzZW50IGZvcg0K cmVjb3ZlcnkuDQoNClNpZ25lZC1vZmYtYnk6IFRyb25kIE15a2xlYnVzdCA8dHJvbmQubXlrbGVi dXN0QHByaW1hcnlkYXRhLmNvbT4NCi0tLQ0KIGZzL25mcy9uZnM0cHJvYy5jIHwgNiArKysrKy0N CiAxIGZpbGUgY2hhbmdlZCwgNSBpbnNlcnRpb25zKCspLCAxIGRlbGV0aW9uKC0pDQoNCmRpZmYg LS1naXQgYS9mcy9uZnMvbmZzNHByb2MuYyBiL2ZzL25mcy9uZnM0cHJvYy5jDQppbmRleCA3Y2Vj YjFkN2EyMTcuLmFjYzU3MmM1MTczNSAxMDA2NDQNCi0tLSBhL2ZzL25mcy9uZnM0cHJvYy5jDQor KysgYi9mcy9uZnMvbmZzNHByb2MuYw0KQEAgLTM5Nyw2ICszOTcsMTAgQEAgc3RhdGljIGludCBu ZnM0X2RvX2hhbmRsZV9leGNlcHRpb24oc3RydWN0IG5mc19zZXJ2ZXIgKnNlcnZlciwNCiAJZXhj ZXB0aW9uLT5kZWxheSA9IDA7DQogCWV4Y2VwdGlvbi0+cmVjb3ZlcmluZyA9IDA7DQogCWV4Y2Vw dGlvbi0+cmV0cnkgPSAwOw0KKw0KKwlpZiAoc3RhdGVpZCA9PSBOVUxMICYmIHN0YXRlICE9IE5V TEwpDQorCQlzdGF0ZWlkID0gJnN0YXRlLT5zdGF0ZWlkOw0KKw0KIAlzd2l0Y2goZXJyb3Jjb2Rl KSB7DQogCQljYXNlIDA6DQogCQkJcmV0dXJuIDA7DQpAQCAtNDA1LDcgKzQwOSw3IEBAIHN0YXRp YyBpbnQgbmZzNF9kb19oYW5kbGVfZXhjZXB0aW9uKHN0cnVjdCBuZnNfc2VydmVyICpzZXJ2ZXIs DQogCQljYXNlIC1ORlM0RVJSX0VYUElSRUQ6DQogCQljYXNlIC1ORlM0RVJSX0JBRF9TVEFURUlE Og0KIAkJCWlmIChpbm9kZSAhPSBOVUxMICYmIHN0YXRlaWQgIT0gTlVMTCkgew0KLQkJCQluZnNf aW5vZGVfZmluZF9kZWxlZ2F0aW9uX3N0YXRlX2FuZF9yZWNvdmVyKGlub2RlLA0KKwkJCQluZnNf aW5vZGVfZmluZF9zdGF0ZV9hbmRfcmVjb3Zlcihpbm9kZSwNCiAJCQkJCQlzdGF0ZWlkKTsNCiAJ CQkJZ290byB3YWl0X29uX3JlY292ZXJ5Ow0KIAkJCX0NCi0tIA0KMi43LjQ=