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Thu, 23 Feb 2023 11:58:20 -0800 (PST) Date: Thu, 23 Feb 2023 11:58:19 -0800 In-Reply-To: Mime-Version: 1.0 References: <20230217041230.2417228-1-yuzhao@google.com> <20230217041230.2417228-6-yuzhao@google.com> Message-ID: Subject: Re: [PATCH mm-unstable v1 5/5] mm: multi-gen LRU: use mmu_notifier_test_clear_young() From: Sean Christopherson To: Yu Zhao Cc: Johannes Weiner , Andrew Morton , Paolo Bonzini , Jonathan Corbet , Michael Larabel , kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, x86@kernel.org, linux-mm@google.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230223_115824_365368_F2C69099 X-CRM114-Status: GOOD ( 20.88 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gVGh1LCBGZWIgMjMsIDIwMjMsIFl1IFpoYW8gd3JvdGU6Cj4gT24gVGh1LCBGZWIgMjMsIDIw MjMgYXQgMTI6MTHigK9QTSBTZWFuIENocmlzdG9waGVyc29uIDxzZWFuamNAZ29vZ2xlLmNvbT4g d3JvdGU6Cj4gPgo+ID4gT24gVGh1LCBGZWIgMjMsIDIwMjMsIFl1IFpoYW8gd3JvdGU6Cj4gPiA+ ID4gQXMgYWxsdWRlZCB0byBpbiBwYXRjaCAxLCB1bmxlc3MgYmF0Y2hpbmcgdGhlIHdhbGtzIGV2 ZW4gaWYgS1ZNIGRvZXMgX25vdF8gc3VwcG9ydAo+ID4gPiA+IGEgbG9ja2xlc3Mgd2FsayBpcyBz b21laG93IF93b3JzZV8gdGhhbiB1c2luZyB0aGUgZXhpc3RpbmcgbW11X25vdGlmaWVyX2NsZWFy X2ZsdXNoX3lvdW5nKCksCj4gPiA+ID4gSSB0aGluayBiYXRjaGluZyB0aGUgY2FsbHMgc2hvdWxk IGJlIGNvbmRpdGlvbmFsIG9ubHkgb24gTFJVX0dFTl9TUFRFX1dBTEsuICBPcgo+ID4gPiA+IGlm IHdlIHdhbnQgdG8gYXZvaWQgYmF0Y2hpbmcgd2hlbiB0aGVyZSBhcmUgbm8gbW11X25vdGlmaWVy IGxpc3RlbmVycywgcHJvYmUKPiA+ID4gPiBtbXVfbm90aWZpZXJzLiAgQnV0IGRvbid0IGNhbGwg aW50byBLVk0gZGlyZWN0bHkuCj4gPiA+Cj4gPiA+IEknbSBub3Qgc3VyZSBJIGZ1bGx5IHVuZGVy c3RhbmQuIExldCdzIHByZXNlbnQgdGhlIHByb2JsZW0gb24gdGhlIE1NCj4gPiA+IHNpZGU6IGFz c3VtaW5nIEtWTSBzdXBwb3J0cyBsb2NrbGVzcyB3YWxrcywgYmF0Y2hpbmcgY2FuIHN0aWxsIGJl Cj4gPiA+IHdvcnNlICh2ZXJ5IHVubGlrZWx5KSwgYmVjYXVzZSBHRk5zIGNhbiBleGhpYml0IG5v IG1lbW9yeSBsb2NhbGl0eSBhdAo+ID4gPiBhbGwuIFNvIHRoaXMgb3B0aW9uIGFsbG93cyB1c2Vy c3BhY2UgdG8gZGlzYWJsZSBiYXRjaGluZy4KPiA+Cj4gPiBJJ20gYXNraW5nIHRoZSBvcHBvc2l0 ZS4gIElzIHRoZXJlIGEgc2NlbmFyaW8gd2hlcmUgYmF0Y2hpbmcrbG9jayBpcyB3b3JzZSB0aGFu Cj4gPiAhYmF0Y2hpbmcrbG9jaz8gIElmIG5vdCwgdGhlbiBkb24ndCBtYWtlIGJhdGNoaW5nIGRl cGVuZCBvbiBsb2NrbGVzcyB3YWxrcy4KPiAKPiBZZXMsIGFic29sdXRlbHkuIGJhdGNoaW5nK2xv Y2sgbWVhbnMgd2UgdGFrZS9yZWxlYXNlIG1tdV9sb2NrIGZvcgo+IGV2ZXJ5IHNpbmdsZSBQVEUg aW4gdGhlIGVudGlyZSBWQSBzcGFjZSAtLSBlYWNoIHNtYWxsIGJhdGNoIGNvbnRhaW5zCj4gNjQg UFRFcyBidXQgdGhlIGVudGlyZSBiYXRjaCBpcyB0aGUgd2hvbGUgS1ZNLgoKV2hvIGlzICJ3ZSI/ ICBJIGRvbid0IHNlZSBhbnl0aGluZyBpbiB0aGUga2VybmVsIHRoYXQgdHJpZ2dlcnMgd2Fsa2lu ZyB0aGUgd2hvbGUKVk1BLCBlLmcuIGxydV9nZW5fbG9va19hcm91bmQoKSBsaW1pdHMgdGhlIHdh bGsgdG8gYSBzaW5nbGUgUE1ELiAgSSBmZWVsIGxpa2UgSSdtCm1pc3Npbmcgc29tZXRoaW5nLi4u CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1h cm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5v cmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0t a2VybmVsCg==