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Lu" , "Andi Kleen" , Rick Edgecombe , Bharata B Rao , Jacob Pan , Ashok Raj , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" Subject: RE: [PATCHv13 05/16] x86/uaccess: Provide untagged_addr() and remove tags before address check Thread-Topic: [PATCHv13 05/16] x86/uaccess: Provide untagged_addr() and remove tags before address check Thread-Index: AQHZHLDUcIP+F/h/PEiAwEZ6SoBjkq6LJK3ggABcQgCAAN3HwA== Date: Tue, 3 Jan 2023 08:37:46 +0000 Message-ID: <35b24dab4dc5451a86ef87f93088e0b7@AcuMS.aculab.com> References: <20221227030829.12508-1-kirill.shutemov@linux.intel.com> <20221227030829.12508-6-kirill.shutemov@linux.intel.com> <20221231001029.5nckrhtmwahb65jo@box> <4cf29f7a1a0041da818ac7ef598d142e@AcuMS.aculab.com> In-Reply-To: Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: BADA212000A X-Stat-Signature: k5w5sgiey4wqzqpdasw786hxwx474xe8 X-HE-Tag: 1672735071-62956 X-HE-Meta: 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 be8xsvvy FCtMaVpY/eCWt2tBtdBeFY7jeGPwt94/0ybolgoFoDRBiCmvaAXJ8gS7sUz/i5ehckEgMk2+vcqjlR+3J/2OCYQAZdOsh3JWPmM19L/5B66Oo1d8ohFdficdUSQnTVnjzVocv X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: RnJvbTogTGludXMgVG9ydmFsZHMNCj4gU2VudDogMDIgSmFudWFyeSAyMDIzIDE5OjA1DQouLi4N Cj4gPiBBcmUgYnl0ZSBsb2FkcyBndWFyYW50ZWVkIHRvIGZhdWx0Pw0KPiANCj4gWWVhaCwgd2Ug ZG9uJ3QgbWFwIHRoZSBoaWdoZXN0IGFkZHJlc3Mgb24geDg2LTY0LiBBbmQgd2UgZG9uJ3Qgd2Fu dCB0bw0KPiBpbiB0aGUgZnV0dXJlIGVpdGhlciwgYmVjYXVzZSBvZiBob3cgb3VyIGVycm9yIHBv aW50ZXJzIHdvcmsgKGllIGlmDQo+IHNvbWVib2R5IG1pc3NlcyBhbiAiSVNfRVJSKCkiIGNoZWNr IGFuZCB1c2VzIGFuIGVycm9yIHBvaW50ZXIgYXMgYQ0KPiBwb2ludGVyLCB3ZSB3YW50IHRoYXQg dG8gZmF1bHQsIHJhdGhlciB0aGFuIGRvIHJhbmRvbSB0aGluZ3MpLg0KPiANCj4gSXQncyBub3Qg YSBoYXJkIHJlcXVpcmVtZW50IGFyY2hpdGVjdHVyYWxseSAoZWl0aGVyIGhhcmR3YXJlIG9yDQo+ IHNvZnR3YXJlKSwgYW5kIGlpcmMgb24gMzItYml0IHdlIHVzZWQgdG8gdXNlIHRoZSBsYXN0IHZp cnR1YWwgcGFnZSBmb3INCj4gc29tZXRoaW5nLCBzbyBtYXliZSBJJ20gbWlzc2luZyBzb21lIG9k ZCB1c2Ugb24gNjQtYml0IHRvbywgYnV0DQo+IGFjY2Vzc2luZyB0aGUgdG9wLW9mLXZpcnR1YWwg YWRkcmVzcyBzcGFjZSBvbiB4ODYtNjQgc2hvdWxkIGFsd2F5cw0KPiBjYXVzZSBhIGNsZWFyIGZh dWx0IGFmYWlrLg0KPiANCj4gQSBieXRlIGFjY2VzcyB3b3VsZCBhbHdheXMgYmUgYSBwYWdlIGZh dWx0LCB3aGlsZSBhIHdyYXBwaW5nIGFjY2Vzcw0KPiBtaWdodCB0cmlnZ2VyIGEgR1AgZmF1bHQg Zmlyc3QgKHByb2JhYmx5IG5vdCAtIG9uIDMyLWJpdCBpdCB3b3VsZCBiZSBhDQo+IHNlZ21lbnQg c2l6ZSB2aW9sYXRpb24sIG9uIDY0LWJpdCB3ZSd2ZSBsZWZ0IHRob3NlIGJhZCBvbGQgZGF5cyBi ZWhpbmQNCj4gYW5kIEkgZG9uJ3QgdGhpbmsgd3JhcHBpbmcgbWF0dGVycyBlaXRoZXIpDQoNCkZv ciBzb21lIHJlYXNvbiBJIHdhcyB0aGlua2luZyB5b3Ugd2VyZSByZWx5aW5nIG9uIHRoZSB3cmFw cGluZyBhY2Nlc3MuDQoNClRoZSBvdGhlciBjaGVjayBpcyBhY2Nlc3Nfb2soKSBmb3IgbG9uZ2Vy IGNvcGllcy4NCklmIHlvdSBtYWtlIHRoZSBhc3N1bXB0aW9uIHRoYXQgdGhlIGNvcHkgaXMgJ3Jl YXNvbmFibHkgc2VxdWVudGlhbCcNCnRoZW4gdGhlIGxlbmd0aCBjYW4gYmUgaWdub3JlZCBwcm92 aWRlZCB0aGF0IHRoZSBib3R0b20gb2YgJ2tlcm5lbA0Kc3BhY2UnIGlzIHVubWFwcGVkLg0KRm9y IHg4Ni02NCB0cmVhdGluZyAtdmUgdmFsdWVzIGFzIGtlcm5lbCB0aGF0IGlzIHByZXR0eSB0cnVl Lg0KMzItYml0IHdvdWxkIG5lZWQgYXQgbGVhc3Qgb25lIHVubWFwcGVkIHBhZ2UgYmV0d2VlbiB1 c2VyIGFuZCBrZXJuZWwuDQpJIHN1c3BlY3QgdGhlIGtlcm5lbCBpcyBsb2FkZWQgYXQgMHhjMDAw MDAwMCBtYWtpbmcgdGhhdCBkaWZmaWN1bHQuDQoNCglEYXZpZA0KDQotDQpSZWdpc3RlcmVkIEFk ZHJlc3MgTGFrZXNpZGUsIEJyYW1sZXkgUm9hZCwgTW91bnQgRmFybSwgTWlsdG9uIEtleW5lcywg TUsxIDFQVCwgVUsNClJlZ2lzdHJhdGlvbiBObzogMTM5NzM4NiAoV2FsZXMpDQo=