Return-Path: Received: from mx142.netapp.com ([216.240.21.19]:38897 "EHLO mx142.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964869AbcDYVec (ORCPT ); Mon, 25 Apr 2016 17:34:32 -0400 From: "Kornievskaia, Olga" To: Jeff Layton CC: "steved@redhat.com" , "linux-nfs@vger.kernel.org" Subject: Re: [PATCH v3 2/3] gssd: using syscalls directly to change thread's identity Date: Mon, 25 Apr 2016 21:34:29 +0000 Message-ID: <0A64C0BB-A140-42F0-8008-8675A4E94B9E@netapp.com> References: <1461603513-67523-1-git-send-email-kolga@netapp.com> <1461603513-67523-3-git-send-email-kolga@netapp.com> <1461615792.4288.31.camel@poochiereds.net> In-Reply-To: <1461615792.4288.31.camel@poochiereds.net> Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Sender: linux-nfs-owner@vger.kernel.org List-ID: DQo+IE9uIEFwciAyNSwgMjAxNiwgYXQgNDoyMyBQTSwgSmVmZiBMYXl0b24gPGpsYXl0b25AcG9v Y2hpZXJlZHMubmV0PiB3cm90ZToNCj4gDQo+IE9uIE1vbiwgMjAxNi0wNC0yNSBhdCAxMjo1OCAt MDQwMCwgT2xnYSBLb3JuaWV2c2thaWEgd3JvdGU6DQo+PiBGb3IgdGhlIHRocmVhZGVkIHZlcnNp b24gd2UgaGF2ZSB0byBzZXQgdWlkLGdpZCBwZXIgdGhyZWFkIGluc3RlYWQNCj4+IG9mIHBlciBw cm9jZXNzLiBnbGliYyBzZXRyZXN1aWQoKSB3aGVuIGNhbGxlZCBmcm9tIGEgdGhyZWFkLCBpdCds bA0KPj4gc2VuZCBhIHNpZ25hbCB0byBhbGwgb3RoZXIgdGhyZWFkcyB0byBzeW5jaHJvbml6ZSB0 aGUgdWlkIGluIGFsbA0KPj4gb3RoZXIgdGhyZWFkcy4gVG8gYnlwYXNzIHRoaXMsIHdlIGhhdmUg dG8gY2FsbCBzeXNjYWxsKCkgZGlyZWN0bHkuDQo+PiANCj4+IFNpZ25lZC1vZmYtYnk6IE9sZ2Eg S29ybmlldnNrYWlhIDxrb2xnYUBuZXRhcHAuY29tPg0KPj4gUmV2aWV3ZWQtYnk6IFN0ZXZlIERp Y2tzb24gPHN0ZXZlZEByZWRoYXQuY29tPg0KPj4gLS0tDQo+PiAgdXRpbHMvZ3NzZC9nc3NkX3By b2MuYyB8IDEyICsrKysrKysrKy0tLQ0KPj4gIDEgZmlsZSBjaGFuZ2VkLCA5IGluc2VydGlvbnMo KyksIDMgZGVsZXRpb25zKC0pDQo+PiANCj4+IGRpZmYgLS1naXQgYS91dGlscy9nc3NkL2dzc2Rf cHJvYy5jIGIvdXRpbHMvZ3NzZC9nc3NkX3Byb2MuYw0KPj4gaW5kZXggZTJlOTVkYy4uNDg3YTRm NSAxMDA2NDQNCj4+IC0tLSBhL3V0aWxzL2dzc2QvZ3NzZF9wcm9jLmMNCj4+ICsrKyBiL3V0aWxz L2dzc2QvZ3NzZF9wcm9jLmMNCj4+IEBAIC02OSw2ICs2OSw3IEBADQo+PiAgI2luY2x1ZGUgDQo+ PiAgI2luY2x1ZGUgDQo+PiAgI2luY2x1ZGUgDQo+PiArI2luY2x1ZGUgDQo+PiAgDQo+PiAgI2lu Y2x1ZGUgImdzc2QuaCINCj4+ICAjaW5jbHVkZSAiZXJyX3V0aWwuaCINCj4+IEBAIC00MzYsNyAr NDM3LDcgQEAgY2hhbmdlX2lkZW50aXR5KHVpZF90IHVpZCkNCj4+ICAJc3RydWN0IHBhc3N3ZAkq cHc7DQo+PiAgDQo+PiAgCS8qIGRyb3AgbGlzdCBvZiBzdXBwbGltZW50YXJ5IGdyb3VwcyBmaXJz dCAqLw0KPj4gLQlpZiAoc2V0Z3JvdXBzKDAsIE5VTEwpICE9IDApIHsNCj4+ICsJaWYgKHN5c2Nh bGwoU1lTX3NldGdyb3VwcywgMCkgIT0gMCkgew0KPj4gIAkJcHJpbnRlcnIoMCwgIldBUk5JTkc6 IHVuYWJsZSB0byBkcm9wIHN1cHBsaW1lbnRhcnkgZ3JvdXBzISIpOw0KPj4gIAkJcmV0dXJuIGVy cm5vOw0KPj4gIAl9DQo+PiBAQCAtNDU3LDcgKzQ1OCwxMiBAQCBjaGFuZ2VfaWRlbnRpdHkodWlk X3QgdWlkKQ0KPj4gIAkgKiBTd2l0Y2ggdGhlIEdJRHMuIE5vdGUgdGhhdCB3ZSBsZWF2ZSB0aGUg c2F2ZWQtc2V0LWdpZCBhbG9uZSBpbiBhbg0KPj4gIAkgKiBhdHRlbXB0IHRvIHByZXZlbnQgYXR0 YWNrcyB2aWEgcHRyYWNlKCkNCj4+ICAJICovDQo+PiAtCWlmIChzZXRyZXNnaWQocHctPnB3X2dp ZCwgcHctPnB3X2dpZCwgLTEpICE9IDApIHsNCj4+ICsJLyogRm9yIHRoZSB0aHJlYWRlZCB2ZXJz aW9uIHdlIGhhdmUgdG8gc2V0IHVpZCxnaWQgcGVyIHRocmVhZCBpbnN0ZWFkDQo+PiArCSAqIG9m IHBlciBwcm9jZXNzLiBnbGliYyBzZXRyZXN1aWQoKSB3aGVuIGNhbGxlZCBmcm9tIGEgdGhyZWFk LCBpdCdsbA0KPj4gKwkgKiBzZW5kIGEgc2lnbmFsIHRvIGFsbCBvdGhlciB0aHJlYWRzIHRvIHN5 bmNocm9uaXplIHRoZSB1aWQgaW4gYWxsDQo+PiArCSAqIG90aGVyIHRocmVhZHMuIFRvIGJ5cGFz cyB0aGlzLCB3ZSBoYXZlIHRvIGNhbGwgc3lzY2FsbCgpIGRpcmVjdGx5Lg0KPj4gKwkgKi8NCj4+ ICsJaWYgKHN5c2NhbGwoU1lTX3NldHJlc2dpZCwgcHctPnB3X2dpZCkgIT0gMCkgew0KPj4gIAkJ cHJpbnRlcnIoMCwgIldBUk5JTkc6IGZhaWxlZCB0byBzZXQgZ2lkIHRvICV1IVxuIiwgcHctPnB3 X2dpZCk7DQo+PiAgCQlyZXR1cm4gZXJybm87DQo+PiAgCX0NCj4+IEBAIC00NjYsNyArNDcyLDcg QEAgY2hhbmdlX2lkZW50aXR5KHVpZF90IHVpZCkNCj4+ICAJICogU3dpdGNoIFVJRHMsIGJ1dCBs ZWF2ZSBzYXZlZC1zZXQtdWlkIGFsb25lIHRvIHByZXZlbnQgcHRyYWNlKCkgYnkNCj4+ICAJICog b3RoZXIgcHJvY2Vzc2VzIHJ1bm5pbmcgd2l0aCB0aGlzIHVpZC4NCj4+ICAJICovDQo+PiAtCWlm IChzZXRyZXN1aWQodWlkLCB1aWQsIC0xKSAhPSAwKSB7DQo+PiArCWlmIChzeXNjYWxsKFNZU19z ZXRyZXN1aWQsIHVpZCkgIT0gMCkgew0KPiANCj4gVGhhdCBsb29rcyB3cm9uZy4gc2V0cmVzdWlk IHRha2VzIDMgYXJndW1lbnRzOg0KPiANCj4gICAgU1lTQ0FMTF9ERUZJTkUzKHNldHJlc3VpZCwg dWlkX3QsIHJ1aWQsIHVpZF90LCBldWlkLCB1aWRfdCwgc3VpZCkNCj4gDQo+IERpdHRvIGZvciBz ZXRyZXNnaWQgYWJvdmUuIHN5c2NhbGwgaXMgYSB2YXJhcmdzIGZ1bmN0aW9uLCBzbyB5b3UgcmVh bGx5DQo+IF9tdXN0XyBwYXNzIGluIHRoZSByaWdodCBudW1iZXIgb2YgYXJncyBvciB5b3UnbGwg ZW5kIHVwIGZlZWRpbmcgaXQNCj4gcmFuZG9tIGp1bmsgaW4gcmVnaXN0ZXJzIG9yIG9mZiB0aGUg c3RhY2suIFRoZSBjb21waWxlciB3b24ndCBzYXZlIHlvdQ0KPiBoZXJl4oCmDQoNClRoYW5rcyBK ZWZmLiBXaWxsIGZpeCB0aGF0LiBzZXRncm91cHMgdGFrZSAyIGFyZ3Mgc28gdGhhdCBzaG91bGQg YmUgZml4ZWQgdG9vLg0KDQoNCj4+ICAJCXByaW50ZXJyKDAsICJXQVJOSU5HOiBGYWlsZWQgdG8g c2V0dWlkIGZvciB1c2VyIHdpdGgNCj4gdWlkICV1XG4iLA0KPj4gIAkJCQl1aWQpOw0KPj4gIAkJ cmV0dXJuIGVycm5vOw0KPiAtLSANCj4gSmVmZiBMYXl0b24gPGpsYXl0b25AcG9vY2hpZXJlZHMu bmV0Pg0KDQo=