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Peter Anvin" , "x86@kernel.org" Subject: Re: [RFC PATCH 4/6] x86/mm/tlb: Refactor common code into flush_tlb_on_cpus() Thread-Topic: [RFC PATCH 4/6] x86/mm/tlb: Refactor common code into flush_tlb_on_cpus() Thread-Index: AQHVEtL2po/8BdVr106IVsPwtVikSqZ+tlgAgACgfgA= Date: Mon, 27 May 2019 18:59:01 +0000 Message-ID: <9BE478F9-C700-46C5-80BC-B905FD0AAB17@vmware.com> References: <20190525082203.6531-1-namit@vmware.com> <20190525082203.6531-5-namit@vmware.com> <20190527092434.GT2623@hirez.programming.kicks-ass.net> In-Reply-To: <20190527092434.GT2623@hirez.programming.kicks-ass.net> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=namit@vmware.com; x-originating-ip: [66.170.99.2] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 4e2f17b3-ec4b-4255-9b6f-08d6e2d5619b x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(5600148)(711020)(4605104)(1401327)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(2017052603328)(7193020);SRVR:BYAPR05MB5192; 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charset="utf-8" Content-ID: <21D22761F01C36439EE15CE57B735EB8@namprd05.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: vmware.com X-MS-Exchange-CrossTenant-Network-Message-Id: 4e2f17b3-ec4b-4255-9b6f-08d6e2d5619b X-MS-Exchange-CrossTenant-originalarrivaltime: 27 May 2019 18:59:01.1683 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b39138ca-3cee-4b4a-a4d6-cd83d9dd62f0 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: namit@vmware.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR05MB5192 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org PiBPbiBNYXkgMjcsIDIwMTksIGF0IDI6MjQgQU0sIFBldGVyIFppamxzdHJhIDxwZXRlcnpAaW5m cmFkZWFkLm9yZz4gd3JvdGU6DQo+IA0KPiBPbiBTYXQsIE1heSAyNSwgMjAxOSBhdCAwMToyMjow MUFNIC0wNzAwLCBOYWRhdiBBbWl0IHdyb3RlOg0KPiANCj4+IFRoZXJlIGlzIG9uZSBmdW5jdGlv bmFsIGNoYW5nZSwgd2hpY2ggc2hvdWxkIG5vdCBhZmZlY3QgY29ycmVjdG5lc3M6DQo+PiBmbHVz aF90bGJfbW1fcmFuZ2UgY29tcGFyZWQgbG9hZGVkX21tIGFuZCB0aGUgbW0gdG8gZmlndXJlIG91 dCBpZiBsb2NhbA0KPj4gZmx1c2ggaXMgbmVlZGVkLiBJbnN0ZWFkLCB0aGUgY29tbW9uIGNvZGUg d291bGQgbG9vayBhdCB0aGUgbW1fY3B1bWFzaygpDQo+PiB3aGljaCBzaG91bGQgZ2l2ZSB0aGUg c2FtZSByZXN1bHQuDQo+IA0KPj4gQEAgLTc4NiwxOCArODA0LDkgQEAgdm9pZCBmbHVzaF90bGJf bW1fcmFuZ2Uoc3RydWN0IG1tX3N0cnVjdCAqbW0sIHVuc2lnbmVkIGxvbmcgc3RhcnQsDQo+PiAJ aW5mbyA9IGdldF9mbHVzaF90bGJfaW5mbyhtbSwgc3RhcnQsIGVuZCwgc3RyaWRlX3NoaWZ0LCBm cmVlZF90YWJsZXMsDQo+PiAJCQkJICBuZXdfdGxiX2dlbik7DQo+PiANCj4+IC0JaWYgKG1tID09 IHRoaXNfY3B1X3JlYWQoY3B1X3RsYnN0YXRlLmxvYWRlZF9tbSkpIHsNCj4+IC0JCWxvY2tkZXBf YXNzZXJ0X2lycXNfZW5hYmxlZCgpOw0KPj4gLQkJbG9jYWxfaXJxX2Rpc2FibGUoKTsNCj4+IC0J CWZsdXNoX3RsYl9mdW5jX2xvY2FsKGluZm8sIFRMQl9MT0NBTF9NTV9TSE9PVERPV04pOw0KPj4g LQkJbG9jYWxfaXJxX2VuYWJsZSgpOw0KPj4gLQl9DQo+PiAtDQo+PiAtCWlmIChjcHVtYXNrX2Fu eV9idXQobW1fY3B1bWFzayhtbSksIGNwdSkgPCBucl9jcHVfaWRzKQ0KPj4gLQkJZmx1c2hfdGxi X290aGVycyhtbV9jcHVtYXNrKG1tKSwgaW5mbyk7DQo+IA0KPiBTbyBpZiB3ZSB3YW50IHRvIGRv dWJsZSBjaGVjayB0aGF0OyB3ZSdkIGFkZDoNCj4gDQo+IAlXQVJOX09OX09OQ0UoY3B1bWFza190 ZXN0X2NwdShzbXBfcHJvY2Vzc29yX2lkKCksIG1tX2NwdW1hc2sobW0pKSA9PQ0KPiAJCSAgICAg KG1tID09IHRoaXNfY3B1X3JlYWQoY3B1X3RsYnN0YXRlLmxvYWRlZF9tbSkpKTsNCj4gDQo+IHJp Z2h0Pw0KDQpZZXMsIGV4Y2VwdCB0aGUgY29uZGl0aW9uIHNob3VsZCBiZSBpbnZlcnRlZCAo4oCc IT3igJwgaW5zdGVhZCBvZiDigJw9PeKAnCksIGFuZCBJDQp3b3VsZCBwcmVmZXIgdG8gdXNlIFZN X1dBUk5fT05fT05DRSgpLg0KDQpVbmZvcnR1bmF0ZWx5LCB0aGlzIGNvbmRpdGlvbiBkb2VzIGZp cmUgd2hlbiBjb3B5X2luaXRfbW0oKSBjYWxscyBkdXBfbW0oKS4NCkkgZG9u4oCZdCB0aGluayB0 aGVyZSBpcyBhIGNvcnJlY3RuZXNzIGlzc3VlLCBhbmQgSSBhbSB0ZW1wdGVkIGp1c3QgY2hlY2ss DQpiZWZvcmUgd2FybmluZywgdGhhdCAobW0gIT0gaW5pdF9tbSkgLg0KDQpXaGF0IGRvIHlvdSBz YXk/