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Miller" , "Topel, Bjorn" , "Karlsson, Magnus" , Netdev , Davidlohr Bueso Subject: RE: [PATCH 1/2] xsk: do not use mmap_sem Thread-Topic: [PATCH 1/2] xsk: do not use mmap_sem Thread-Index: AQHUwh8y/Z/k25QyB0Oc2wm5pV76vqXbMI2A//+lm9A= Date: Mon, 11 Feb 2019 17:16:06 +0000 Message-ID: <2807E5FD2F6FDA4886F6618EAC48510E79BCB3B9@CRSMSX101.amr.corp.intel.com> References: <20190207053740.26915-1-dave@stgolabs.net> <20190207053740.26915-2-dave@stgolabs.net> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-titus-metadata-40: eyJDYXRlZ29yeUxhYmVscyI6IiIsIk1ldGFkYXRhIjp7Im5zIjoiaHR0cDpcL1wvd3d3LnRpdHVzLmNvbVwvbnNcL0ludGVsMyIsImlkIjoiYWY2Y2EwYjQtYTAxYi00Zjg0LWE5NmEtOTFkNDdlMjg4YjM4IiwicHJvcHMiOlt7Im4iOiJDVFBDbGFzc2lmaWNhdGlvbiIsInZhbHMiOlt7InZhbHVlIjoiQ1RQX05UIn1dfV19LCJTdWJqZWN0TGFiZWxzIjpbXSwiVE1DVmVyc2lvbiI6IjE3LjEwLjE4MDQuNDkiLCJUcnVzdGVkTGFiZWxIYXNoIjoiak5rNERqakdyUE1oXC81Sm91RUFha0ZSRjBFXC85dE0ybEM1TFVaRUljUVRYdXp2dzRVTndJSW9UcUkzTXNBNkZOIn0= x-ctpclassification: CTP_NT dlp-product: dlpe-windows dlp-version: 11.0.400.15 dlp-reaction: no-action x-originating-ip: [172.18.205.10] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org PiA+ID4+IC0tLQ0KPiA+ID4+ICBuZXQveGRwL3hkcF91bWVtLmMgfCA2ICsrLS0tLQ0KPiA+ID4+ ICAxIGZpbGUgY2hhbmdlZCwgMiBpbnNlcnRpb25zKCspLCA0IGRlbGV0aW9ucygtKQ0KPiA+ID4+ DQo+ID4gPj4gZGlmZiAtLWdpdCBhL25ldC94ZHAveGRwX3VtZW0uYyBiL25ldC94ZHAveGRwX3Vt ZW0uYyBpbmRleA0KPiA+ID4+IDVhYjIzNmM1YzlhNS4uMjVlMWU3NjY1NGE4IDEwMDY0NA0KPiA+ ID4+IC0tLSBhL25ldC94ZHAveGRwX3VtZW0uYw0KPiA+ID4+ICsrKyBiL25ldC94ZHAveGRwX3Vt ZW0uYw0KPiA+ID4+IEBAIC0yNjUsMTAgKzI2NSw4IEBAIHN0YXRpYyBpbnQgeGRwX3VtZW1fcGlu X3BhZ2VzKHN0cnVjdA0KPiB4ZHBfdW1lbSAqdW1lbSkNCj4gPiA+PiAgICAgICAgIGlmICghdW1l bS0+cGdzKQ0KPiA+ID4+ICAgICAgICAgICAgICAgICByZXR1cm4gLUVOT01FTTsNCj4gPiA+Pg0K PiA+ID4+IC0gICAgICAgZG93bl93cml0ZSgmY3VycmVudC0+bW0tPm1tYXBfc2VtKTsNCj4gPiA+ PiAtICAgICAgIG5wZ3MgPSBnZXRfdXNlcl9wYWdlcyh1bWVtLT5hZGRyZXNzLCB1bWVtLT5ucGdz LA0KPiA+ID4+IC0gICAgICAgICAgICAgICAgICAgICAgICAgICAgIGd1cF9mbGFncywgJnVtZW0t PnBnc1swXSwgTlVMTCk7DQo+ID4gPj4gLSAgICAgICB1cF93cml0ZSgmY3VycmVudC0+bW0tPm1t YXBfc2VtKTsNCj4gPiA+PiArICAgICAgIG5wZ3MgPSBnZXRfdXNlcl9wYWdlc19mYXN0KHVtZW0t PmFkZHJlc3MsIHVtZW0tPm5wZ3MsDQo+ID4gPj4gKyAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICBndXBfZmxhZ3MsICZ1bWVtLT5wZ3NbMF0pOw0KPiA+ID4+DQo+ID4gPg0KPiA+ID4g VGhhbmtzIGZvciB0aGUgcGF0Y2ghDQo+ID4gPg0KPiA+ID4gVGhlIGxpZmV0aW1lIG9mIHRoZSBw aW5uaW5nIGlzIHNpbWlsYXIgdG8gUkRNQSB1bWVtIG1hcHBpbmcsIHNvDQo+ID4gPiBpc24ndCBn dXBfbG9uZ3Rlcm0gcHJlZmVycmVkPw0KPiA+DQo+ID4gU2VlbXMgcmVhc29uYWJsZSBmcm9tIHJl YWRpbmcgd2hhdCBndXBfbG9uZ3Rlcm0gc2VlbXMgdG8gZG8uIERhdmlkbG9ocg0KPiA+IG9yIERh biwgYW55IHRob3VnaHRzIG9uIHRoZSBhYm92ZT8NCj4gDQo+IFllcywgYW55IGd1cCB3aGVyZSB0 aGUgbGlmZXRpbWUgb2YgdGhlIGNvcnJlc3BvbmRpbmcgcHV0X3BhZ2UoKSBpcyB1bmRlcg0KPiBk aXJlY3QgY29udHJvbCBvZiB1c2Vyc3BhY2Ugc2hvdWxkIGJlIHVzaW5nIHRoZSBfbG9uZ3Rlcm0g Zmxhdm9yIHRvDQo+IGNvb3JkaW5hdGUgYmUgY2FyZWZ1bCBpbiB0aGUgcHJlc2VuY2Ugb2YgZGF4 LiBJbiB0aGUgZGF4IGNhc2UgdGhlcmUgaXMgbm8gcGFnZQ0KPiBjYWNoZSBpbmRpcmVjdGlvbiB0 byBjb29yZGluYXRlIHRydW5jYXRlIHZzIHBhZ2UgcGlucy4gSXJhIGlzIGxvb2tpbmcgdG8gYWRk IGENCj4gImZhc3QgKyBsb25ndGVybSIgZmxhdm9yIGZvciBjYXNlcyBsaWtlIHRoaXMuDQoNClll cyBJJ20ganVzdCBhYm91dCByZWFkeSB3aXRoIGEgc21hbGwgcGF0Y2ggc2V0IHRvIGFkZCBhIEdV UCBmYXN0IGxvbmd0ZXJtLg0KDQpJIHRoaW5rIHRoaXMgc2hvdWxkIHdhaXQgZm9yIHRoYXQgc2Vy aWVzLg0KDQpJcmENCiANCg==