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Thu, 22 Apr 2021 07:00:35 +0000 Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga07-in.huawei.com (SkyGuard) with ESMTP id 4FQpCV628sz7vy7; Thu, 22 Apr 2021 14:57:58 +0800 (CST) Received: from [10.174.177.244] (10.174.177.244) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.498.0; Thu, 22 Apr 2021 15:00:20 +0800 Subject: Re: [PATCH v2 0/4] arm64: drop pfn_valid_within() and simplify pfn_valid() To: Mike Rapoport , CC: Andrew Morton , Anshuman Khandual , Ard Biesheuvel , "Catalin Marinas" , David Hildenbrand , "Marc Zyngier" , Mark Rutland , Mike Rapoport , Will Deacon , , , References: <20210421065108.1987-1-rppt@kernel.org> From: Kefeng Wang Message-ID: <9aa68d26-d736-3b75-4828-f148964eb7f0@huawei.com> Date: Thu, 22 Apr 2021 15:00:20 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <20210421065108.1987-1-rppt@kernel.org> Content-Language: en-US X-Originating-IP: [10.174.177.244] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210422_000033_997499_D9B4F31E X-CRM114-Status: GOOD ( 17.51 ) 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-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Ck9uIDIwMjEvNC8yMSAxNDo1MSwgTWlrZSBSYXBvcG9ydCB3cm90ZToKPiBGcm9tOiBNaWtlIFJh cG9wb3J0IDxycHB0QGxpbnV4LmlibS5jb20+Cj4KPiBIaSwKPgo+IFRoZXNlIHBhdGNoZXMgYWlt IHRvIHJlbW92ZSBDT05GSUdfSE9MRVNfSU5fWk9ORSBhbmQgZXNzZW50aWFsbHkgaGFyZHdpcmUK PiBwZm5fdmFsaWRfd2l0aGluKCkgdG8gMS4KPgo+IFRoZSBpZGVhIGlzIHRvIG1hcmsgTk9NQVAg cGFnZXMgYXMgcmVzZXJ2ZWQgaW4gdGhlIG1lbW9yeSBtYXAgYW5kIHJlc3RvcmUKPiB0aGUgaW50 ZW5kZWQgc2VtYW50aWNzIG9mIHBmbl92YWxpZCgpIHRvIGRlc2lnbmF0ZSBhdmFpbGFiaWxpdHkg b2Ygc3RydWN0Cj4gcGFnZSBmb3IgYSBwZm4uCj4KPiBXaXRoIHRoaXMgdGhlIGNvcmUgbW0gd2ls bCBiZSBhYmxlIHRvIGNvcGUgd2l0aCB0aGUgZmFjdCB0aGF0IGl0IGNhbm5vdCB1c2UKPiBOT01B UCBwYWdlcyBhbmQgdGhlIGhvbGVzIGNyZWF0ZWQgYnkgTk9NQVAgcmFuZ2VzIHdpdGhpbiBNQVhf T1JERVIgYmxvY2tzCj4gd2lsbCBiZSB0cmVhdGVkIGNvcnJlY3RseSBldmVuIHdpdGhvdXQgdGhl IG5lZWQgZm9yIHBmbl92YWxpZF93aXRoaW4uCj4KPiBUaGUgcGF0Y2hlcyBhcmUgb25seSBib290 IHRlc3RlZCBvbiBxZW11LXN5c3RlbS1hYXJjaDY0IHNvIEknZCByZWFsbHkKPiBhcHByZWNpYXRl IG1lbW9yeSBzdHJlc3MgdGVzdHMgb24gcmVhbCBoYXJkd2FyZS4KPgo+IElmIHRoaXMgYWN0dWFs bHkgd29ya3Mgd2UnbGwgYmUgb25lIHN0ZXAgY2xvc2VyIHRvIGRyb3AgY3VzdG9tIHBmbl92YWxp ZCgpCj4gb24gYXJtNjQgYWx0b2dldGhlci4KCkhpIE1pa2XvvIxJIGhhdmUgYSBxdWVzdGlvbiwg d2l0aG91dCBIT0xFU19JTl9aT05FLCB0aGUgcGZuX3ZhbGlkX3dpdGhpbigpIAppbiBtb3ZlX2Zy ZWVwYWdlc19ibG9jaygpLT5tb3ZlX2ZyZWVwYWdlcygpCndpbGwgYmUgb3B0aW1pemVkLCBpZiB0 aGVyZSBhcmUgaG9sZXMgaW4gem9uZSwgdGhlICdzdHJ1Y2UgcGFnZScobWVtb3J5IAptYXApIGZv ciBwZm4gcmFuZ2Ugb2YgaG9sZSB3aWxsIGJlIGZyZWUgYnkKZnJlZV9tZW1tYXAoKSwgYW5kIHRo ZW4gdGhlIHBhZ2UgdHJhdmVyc2UgaW4gdGhlIHpvbmUod2l0aCBob2xlcykgZnJvbSAKbW92ZV9m cmVlcGFnZXMoKSB3aWxsIG1lZXQgdGhlIHdyb25nIHBhZ2XvvIwKdGhlbiBpdCBjb3VsZCBwYW5p YyBhdCBQYWdlTFJVKHBhZ2UpIHRlc3QsIGNoZWNrIGxpbmtbMV0sCgoiVGhlIGlkZWEgaXMgdG8g bWFyayBOT01BUCBwYWdlcyBhcyByZXNlcnZlZCBpbiB0aGUgbWVtb3J5IG1hcCIsIEkgc2VlIAp0 aGUgcGF0Y2gyIGNoZWNrIG1lbWJsb2NrX2lzX25vbWFwKCkgaW4gbWVtb3J5IHJlZ2lvbgpvZiBt ZW1ibG9jaywgYnV0IGl0IHNlZW1zIHRoYXQgbWVtYmxvY2tfbWFya19ub21hcCgpIGlzIG5vdCBj YWxsZWQobWF5YmUgCkkgbWlzc2VkKSwgdGhlbiBtZW1tYXBfaW5pdF9yZXNlcnZlZF9wYWdlcygp IHdvbid0CndvcmssIHNvIHNob3VsZCB0aGUgSE9MRVNfSU5fWk9ORSBzdGlsbCBiZSBuZWVkZWQg Zm9yIGdlbmVyaWMgbW0gY29kZT8KClsxXSAKaHR0cHM6Ly9sb3JlLmtlcm5lbC5vcmcvbGludXgt YXJtLWtlcm5lbC81NDExOTNhNi0yYmNlLWYwNDItNWJiMi04ODkxM2Q1ZjEwNDdAYXJtLmNvbS8K CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1h cm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5v cmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0t a2VybmVsCg==