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b=H+Lejx63MILxcvLOE+PXzKkhIa1ZB2LbJtvCU2LJSQxUOQIvJ1PkLnvFir5Q3kR3y zMqqHR4wCe1A+1iaaW9NvFlo3CU5u0mZSWEmSzfs9ZEzSwhBOKuOXxEMGnBefOcz5U PgbubM91fJzFi4neJvIP1SWRWzSsSRTM3kTbkDviHX+Qf69u4i4xB9JsXdO2OTa612 lTpqxLBrL15OYXUdgoPofsSzzMqhsSkmClvj0rHhfr4XS5yBxEioLjgXZvUGFRqxlu StZKrKC01KQu8aqmfYrS0IEckC/87gxNiWEA68AgJVEX3sZOWcdIP+5WjT2tcG+fSR GLWuwntI4YmNA== Date: Fri, 11 Aug 2023 12:21:07 +0100 From: Will Deacon To: Qi Zheng Cc: Qi Zheng , akpm@linux-foundation.org, catalin.marinas@arm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, muchun.song@linux.dev, pasha.tatashin@soleen.com, wangkefeng.wang@huawei.co Subject: Re: [PATCH] arm64: mm: use ptep_clear() instead of pte_clear() in clear_flush() Message-ID: <20230811112107.GE6993@willie-the-truck> References: <20230810093241.1181142-1-qi.zheng@linux.dev> <20230811110311.GB6993@willie-the-truck> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230811_042114_415721_019C69DD X-CRM114-Status: GOOD ( 16.40 ) 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 T24gRnJpLCBBdWcgMTEsIDIwMjMgYXQgMDc6MTY6MjBQTSArMDgwMCwgUWkgWmhlbmcgd3JvdGU6 Cj4gICAgV2lsbCBEZWFjb24gPFsxXXdpbGxAa2VybmVsLm9yZz7kuo4yMDIz5bm0OOaciDEx5pel IOWRqOS6lDE5OjAz5YaZ6YGT77yaCj4gCj4gICAgICBPbiBUaHUsIEF1ZyAxMCwgMjAyMyBhdCAw OTozMjo0MUFNICswMDAwLCBRaSBaaGVuZyB3cm90ZToKPiAgICAgID4gRnJvbTogUWkgWmhlbmcg PFsyXXpoZW5ncWkuYXJjaEBieXRlZGFuY2UuY29tPgo+ICAgICAgPgo+ICAgICAgPiBJbiBjbGVh cl9mbHVzaCgpLCB0aGUgb3JpZ2luYWwgcHRlIG1heSBiZSBhIHByZXNlbnQgZW50cnksIHNvIHdl Cj4gICAgICBzaG91bGQKPiAgICAgID4gdXNlIHB0ZXBfY2xlYXIoKSB0byBsZXQgcGFnZV90YWJs ZV9jaGVjayB0cmFjayB0aGUgcHRlIGNsZWFyaW5nCj4gICAgICBvcGVyYXRpb24sCj4gICAgICA+ IG90aGVyd2lzZSBpdCBtYXkgY2F1c2UgZmFsc2UgcG9zaXRpdmUgaW4gc3Vic2VxdWVudCBzZXRf cHRlX2F0KCkuCj4gCj4gICAgICBJc24ndCB0aGlzIHRydWUgZm9yIG1vc3QgdXNlcnMgb2YgcHRl X2NsZWFyKCk/IFRoZXJlIGFyZSBzb21lIGluIHRoZQo+ICAgICAgY29yZQo+ICAgICAgY29kZSwg c28gY291bGQgdGhleSB0cmlnZ2VyIHRoZSBmYWxzZSBwb3NpdGl2ZSBhcyB3ZWxsPwo+IAo+ICAg IE5vLCB0aGUgUFRFIGVudHJ5IGluIG90aGVyIHBsYWNlcyB3aGVyZSBwdGVfY2xlYXIoKSBpcyB1 c2VkIGlzIG5vbi1wcmVzZW50Cj4gICAgUFRFLsKgCj4gICAgVGhlIHBhZ2VfdGFibGVfY2hlY2sg ZG9lcyBub3QgZG9lcyB0cmFjayB0aGUgcHRlIG9wZXJhdGlvbiBpbiB0aGlzIGNhc2UsCj4gICAg c28gaXQgd2lsbCBub3QgY2F1c2UgZmFsc2UgcG9zaXRpdmVzLgoKQXJlIHlvdSBzdXJlPyBGb3Ig ZXhhbXBsZSwgdGhlIGNhbGwgZnJvbSBmbHVzaF9hbGxfemVyb19wa21hcHMoKSBpbgpoaWdobWVt LmMgcmVhbGx5IGxvb2tzIGxpa2UgaXQncyBjbGVhcmluZyBhIHZhbGlkIGVudHJ5LiBOb3QgdGhh dCBhcm02NApjYXJlcyBhYm91dCBoaWdobWVtLCBidXQgc3RpbGwuCgpXaWxsCgpfX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1h aWxpbmcgbGlzdApsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xp c3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==