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Fri, 27 Nov 2020 11:16:52 +0800 Message-ID: <1606447013.8845.5.camel@mtkswgap22> Subject: Re: [RESEND PATCH v1] proc: use untagged_addr() for pagemap_read addresses From: Miles Chen To: Catalin Marinas CC: Alexey Dobriyan , Andrew Morton , Linux Kernel Mailing List , , , , Date: Fri, 27 Nov 2020 11:16:53 +0800 In-Reply-To: References: <20201123063835.18981-1-miles.chen@mediatek.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3-0ubuntu6 MIME-Version: 1.0 X-MTK: N Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gVGh1LCAyMDIwLTExLTI2IGF0IDExOjEwICswMDAwLCBDYXRhbGluIE1hcmluYXMgd3JvdGU6 DQo+IEhpIE1pbGVzLA0KPiANCj4gQ291bGQgeW91IHBsZWFzZSBjYyBtZSBhbmQgQW5kcmV5IEtv bm92YWxvdiBvbiBmdXR1cmUgdmVyc2lvbnMgb2YgdGhpcw0KPiBwYXRjaCAoaWYgYW55KT8NCj4g DQo+IE9uIE1vbiwgMjMgTm92IDIwMjAgYXQgMDg6NDcsIE1pbGVzIENoZW4gPG1pbGVzLmNoZW5A bWVkaWF0ZWsuY29tPiB3cm90ZToNCj4gPiBXaGVuIHdlIHRyeSB0byB2aXNpdCB0aGUgcGFnZW1h cCBvZiBhIHRhZ2dlZCB1c2Vyc3BhY2UgcG9pbnRlciwgd2UgZmluZA0KPiA+IHRoYXQgdGhlIHN0 YXJ0X3ZhZGRyIGlzIG5vdCBjb3JyZWN0IGJlY2F1c2Ugb2YgdGhlIHRhZy4NCj4gPiBUbyBmaXgg aXQsIHdlIHNob3VsZCB1bnRhZyB0aGUgdXNlc3BhY2UgcG9pbnRlcnMgaW4gcGFnZW1hcF9yZWFk KCkuDQo+ID4NCj4gPiBJIHRlc3RlZCB3aXRoIDUuMTAtcmM0IGFuZCB0aGUgaXNzdWUgcmVtYWlu cy4NCj4gPg0KPiA+IE15IHRlc3QgY29kZSBpcyBiYWVkIG9uIFsxXToNCj4gPg0KPiA+IEEgdXNl cnNwYWNlIHBvaW50ZXIgd2hpY2ggaGFzIGJlZW4gdGFnZ2VkIGJ5IDB4YjQ6IDB4YjQwMDAwNzY2 MmY1NDFjOA0KPiA+DQo+ID4gPT09IHVzZXJzcGFjZSBwcm9ncmFtID09PQ0KPiA+DQo+ID4gdWlu dDY0IE9zTGF5ZXI6OlZpcnR1YWxUb1BoeXNpY2FsKHZvaWQgKnZhZGRyKSB7DQo+ID4gICAgICAg ICB1aW50NjQgZnJhbWUsIHBhZGRyLCBwZm5tYXNrLCBwYWdlbWFzazsNCj4gPiAgICAgICAgIGlu dCBwYWdlc2l6ZSA9IHN5c2NvbmYoX1NDX1BBR0VTSVpFKTsNCj4gPiAgICAgICAgIG9mZjY0X3Qg b2ZmID0gKCh1aW50cHRyX3QpdmFkZHIpIC8gcGFnZXNpemUgKiA4OyAvLyBvZmYgPSAweGI0MDAw MDc2NjJmNTQxYzggLyBwYWdlc2l6ZSAqIDggPSAweDVhMDAwMDNiMzE3YWEwDQo+IA0KPiBBcmd1 YWJseSwgdGhhdCdzIGEgdXNlci1zcGFjZSBidWcgc2luY2UgdGFnZ2VkIGZpbGUgb2Zmc2V0cyB3 ZXJlIG5ldmVyDQo+IHN1cHBvcnRlZC4gSW4gdGhpcyBjYXNlIGl0J3Mgbm90IGV2ZW4gYSB0YWcg YXQgYml0IDU2IGFzIHBlciB0aGUgYXJtNjQNCj4gdGFnZ2VkIGFkZHJlc3MgQUJJIGJ1dCByYXRo ZXIgZG93biB0byBiaXQgNDcuIFlvdSBjb3VsZCBzYXkgdGhhdCB0aGUNCj4gcHJvYmxlbSBpcyBj YXVzZWQgYnkgdGhlIEMgbGlicmFyeSAobWFsbG9jKCkpIG9yIHdob2V2ZXIgY3JlYXRlZCB0aGUN Cj4gdGFnZ2VkIHZhZGRyIGFuZCBwYXNzZWQgaXQgdG8gdGhpcyBmdW5jdGlvbi4gSXQncyBub3Qg YSBrZXJuZWwNCj4gcmVncmVzc2lvbiBhcyB3ZSd2ZSBuZXZlciBzdXBwb3J0ZWQgaXQuDQoNCnRo YW5rcyBmb3IgdGhlIGV4cGxhaW5hdGlvbi4NCj4gDQo+IE5vdywgcGFnZW1hcCBpcyBhIHNwZWNp YWwgY2FzZSB3aGVyZSB0aGUgb2Zmc2V0IGlzIHVzdWFsbHkgbm90DQo+IGdlbmVyYXRlZCBhcyBh IGNsYXNzaWMgZmlsZSBvZmZzZXQgYnV0IHJhdGhlciBkZXJpdmVkIGJ5IHNoaWZ0aW5nIGENCj4g dXNlciB2aXJ0dWFsIGFkZHJlc3MuIEkgZ3Vlc3Mgd2UgY2FuIG1ha2UgYSBjb25jZXNzaW9uIGZv ciBwYWdlbWFwDQo+IChvbmx5KSBhbmQgYWxsb3cgc3VjaCBvZmZzZXQgd2l0aCB0aGUgdGFnIGF0 IGJpdCAoNTYgLSBQQUdFX1NISUZUICsNCj4gMykuDQo+IA0KPiBQbGVhc2UgZml4IHRoZSBwYXRj aCBhcyBwZXIgRXJpYydzIHN1Z2dlc3Rpb24gb24gYXZvaWRpbmcgdGhlDQo+IG92ZXJmbG93LiBZ b3Ugc2hvdWxkIGFsc28gYWRkIGEgQ2M6IHN0YWJsZSB2NS40LSBhcyB0aGF0J3Mgd2hlbiB3ZQ0K PiBlbmFibGVkIHRoZSB0YWdnZWQgYWRkcmVzcyBBQkkgb24gYXJtNjQgYW5kIHdoZW4gaXQncyBt b3JlIGxpa2VseSBmb3INCj4gdGhlIEMgbGlicmFyeS9tYWxsb2MoKSB0byBzdGFydCBnZW5lcmF0 aW5nIHN1Y2ggcG9pbnRlcnMuDQoNCkdvdCBpdCwgdGhhbmtzIGZvciB5b3VyIHJldmlld2luZyBh bmQgc3VnZ2VzdGlvbi4gSSB3aWxsIGZvbGxvdyBFcmljJ3MNCnN1Z2dlc3Rpb24gYW5kIHN1Ym1p dCBwYXRjaCB2MiBhbmQgY2Mgc3RhYmxlIHY1LjQtDQoNCk1pbGVzDQo+IA0KPiBJZiB0aGUgcHJv YmxlbSBpcyBvbmx5IGxpbWl0ZWQgdG8gdGhpcyB0ZXN0LCBJJ2QgcmF0aGVyIGZpeCB0aGUgdXNl cg0KPiBidXQgSSBjYW4ndCB0ZWxsIGhvdyB3aWRlc3ByZWFkIHRoZSAvcHJvYy9waWQvcGFnZW1h cCB1c2FnZSBpcy4NCj4gDQo+IFRoYW5rcy4NCj4gDQoNCg==