From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C7D7EC282DD for ; Thu, 9 Jan 2020 13:55:19 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 8720E206ED for ; Thu, 9 Jan 2020 13:55:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="MjE1bu2o" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8720E206ED Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 24AA58E0011; Thu, 9 Jan 2020 08:55:19 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 1F9AD8E0001; Thu, 9 Jan 2020 08:55:19 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 1102E8E0011; Thu, 9 Jan 2020 08:55:19 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0077.hostedemail.com [216.40.44.77]) by kanga.kvack.org (Postfix) with ESMTP id EC6F38E0001 for ; Thu, 9 Jan 2020 08:55:18 -0500 (EST) Received: from smtpin24.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with SMTP id 87138180AD807 for ; Thu, 9 Jan 2020 13:55:18 +0000 (UTC) X-FDA: 76358242716.24.grain73_11304082abd1c X-HE-Tag: grain73_11304082abd1c X-Filterd-Recvd-Size: 5144 Received: from mail-lj1-f193.google.com (mail-lj1-f193.google.com [209.85.208.193]) by imf22.hostedemail.com (Postfix) with ESMTP for ; Thu, 9 Jan 2020 13:55:17 +0000 (UTC) Received: by mail-lj1-f193.google.com with SMTP id l2so7319958lja.6 for ; Thu, 09 Jan 2020 05:55:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:references:mime-version:message-id :content-transfer-encoding; bh=KupS1K17L6tB7WQ8igxnAz2hpLTJToFACAW/eplefGo=; b=MjE1bu2oUyhh4hd2JmAQnLSqEr9sl90HTHDrft6gPXggvKi6YL7CF20KFGMsbYUmh5 /AE8YXdoUUZAcbHHabgwlNAOhLu+pY0IOvGBAlGv41OPz2CCKB3RmwXYtjvJqE5bN02D SlqdCM7hzZcERcxzgACSA4hKcMbijG0xq0sOWw8FSx+hSjsjDa67WsDY+11iEr5JGKMg wBqvcEFkT3IKVYdjS2BguOexfHjIJ7PlTOWbT3uVHpKaaKhNPazC5QoAuGzX34tqsmZa AO0cZvSUhdo6Ut7c/1gnzeCdRbsNl1ecFB+r0D4FV0pG+hZn1Aj3w9apA7yzecz9iL2k XSCw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:references:mime-version :message-id:content-transfer-encoding; bh=KupS1K17L6tB7WQ8igxnAz2hpLTJToFACAW/eplefGo=; b=K2TalsxSqNsfSNIsxPHQK1iy5ekpRcO60Cz4nQTv5UfmYNvDGmJw1lN7fSAbHET2b+ TQv0VrZth1Pak7cVq1utfPS6s3pL2yNtUegwXQtWSVnubHieRRmmbX200ZYGPy+tsyqO F7+NpXnDMvXbo7IDe8KLv/JEVUVure06yNVzAy6y52ly8urk0+jwOfnBJnzHidEtFlOg lkR4+a+VgdIMdJhX6vaGndjsFwb0ZMw75AgHrMlEVjjCBYyquUbWz0Mi9Vetib5QRUv3 iRetyFeP/os2ebkDAhCAZSWgZcQfx4NVFGYPE9D5J6zO1fMTfoy64PGhK2g88LUZNI61 vY7A== X-Gm-Message-State: APjAAAVpmKiJrA6d4OUNobVhZoktKLeohnTCHTdwqYLfrw5yLYN2fKxQ NdgKZZPHW/dLH5UtSxWW0Nc= X-Google-Smtp-Source: APXvYqwnhpGwIwAnPzJ/7RCZDmJSitsfkEQ4gpZTT1lWbKTLMIsyORmLK1GnO/gp3rbxEj0vPuEWRQ== X-Received: by 2002:a2e:818e:: with SMTP id e14mr6477555ljg.2.1578578116444; Thu, 09 Jan 2020 05:55:16 -0800 (PST) Received: from N-20L6PF1KTYA2 ([131.228.2.21]) by smtp.gmail.com with ESMTPSA id l21sm3097101lfh.74.2020.01.09.05.55.14 (version=TLS1_2 cipher=AES128-GCM-SHA256 bits=128/128); Thu, 09 Jan 2020 05:55:15 -0800 (PST) Date: Thu, 9 Jan 2020 21:55:14 +0800 From: "Li Xinhai" To: "Kirill A. Shutemov" Cc: "linux-mm@kvack.org" , kirill.shutemov Subject: Re: [PATCH] mm/page_vma_mapped.c: Exactly compare hugetlbfs page's pfn in pfn_in_hpage() References: <1578552280-5703-1-git-send-email-lixinhai.lxh@gmail.com>, <20200109123021.v4akwvcwjsbfc4xt@box> X-Priority: 3 X-GUID: 8AD933FE-B6A1-4E94-B237-C1EEAC5FEFE4 X-Has-Attach: no X-Mailer: Foxmail 7.2.13.365[cn] Mime-Version: 1.0 Message-ID: <2020010921551252900478@gmail.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 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: T24gMjAyMC0wMS0wOcKgYXQgMjA6MzDCoEtpcmlsbCBBLiBTaHV0ZW1vdsKgd3JvdGU6Cj5PbiBU aHUsIEphbiAwOSwgMjAyMCBhdCAwNjo0NDo0MEFNICswMDAwLCBMaSBYaW5oYWkgd3JvdGU6Cj4+ IGNoZWNrX3B0ZSBpcyBjYWxsZWQgZm9yIGh1Z2V0bGJmcyBwYWdlIGFuZCBjb21wYXJpbmcgcGZu IGluIHBmbl9pbl9wYWdlLAo+PiB3aGVyZSBwZm4gaXMgY29tcGFyZWQgaW4gcmFuZ2UgW2hwYWdl X3BmbiwgaHBhZ2VfcGZuK0hQQUdFX1BNRF9OUikuIE5vdwo+PiBjaGFuZ2UgaXQgdG8gbWF0Y2gg ZXhhY3RseSBmb3IgaHVnZXRsYmZzIHBhZ2UgdG8gYXZvaWQgaGlkaW5nIGFueQo+PiBwb3RlbnRp YWwgcHJvYmxlbXMuCj4KPkhtLiBXaGF0IHBvdGVudGlhbCBwcm9ibGVtcyBkbyB5b3UgdGFsayBh Ym91dD8KPgo+SSB1bmRlcnN0YW5kIHRoYXQgZm9yIGh1Z2V0bGIgcGFnZXMgcGZuIGlzIGFsd2F5 cyBoYXMgdG8gYmUgZXF1YWwKPmhwYWdlX3BmbiwgYnV0IHJldHVybmluZyBmYWxzZSBmb3IgcGZu IGluIHRoZSByYW5nZSBvZiB0aGUgaHVnZXRsYiBwYWdlCj5qdXN0IGJlY2F1c2UgaXQncyBub3Qg aGVhZCBpcyBub3QgaGVscGZ1bC4KPgo+SSB3b3VsZCByYXRoZXIgaGF2ZQo+Cj4JVk1fQlVHX09O X1BBR0UoUGFnZUh1Z2UoaHBhZ2UpICYmIHBmbiAhPSBocGFnZV9wZm4sIGhwYWdlKTsKPgo+dGhl cmUuIApZZXMsIHRoYXQgaXMgYmV0dGVyIHRvIHJlcG9ydCBCVUcgYXMgd2UgYWxyZWFkeSBjYXRj aCBpdC4KCj4+Cj4+IFNpZ25lZC1vZmYtYnk6IExpIFhpbmhhaSA8bGl4aW5oYWkubHhoQGdtYWls LmNvbT4KPj4gQ2M6IEtpcmlsbCBBLiBTaHV0ZW1vdiA8a2lyaWxsLnNodXRlbW92QGxpbnV4Lmlu dGVsLmNvbT4KPj4gLS0tCj4+wqAgbW0vcGFnZV92bWFfbWFwcGVkLmMgfCAyICsrCj4+wqAgMSBm aWxlIGNoYW5nZWQsIDIgaW5zZXJ0aW9ucygrKQo+Pgo+PiBkaWZmIC0tZ2l0IGEvbW0vcGFnZV92 bWFfbWFwcGVkLmMgYi9tbS9wYWdlX3ZtYV9tYXBwZWQuYwo+PiBpbmRleCBlZmY0YjQ1Li40MzQ5 NzhiIDEwMDY0NAo+PiAtLS0gYS9tbS9wYWdlX3ZtYV9tYXBwZWQuYwo+PiArKysgYi9tbS9wYWdl X3ZtYV9tYXBwZWQuYwo+PiBAQCAtNTUsNiArNTUsOCBAQCBzdGF0aWMgYm9vbCBtYXBfcHRlKHN0 cnVjdCBwYWdlX3ZtYV9tYXBwZWRfd2FsayAqcHZtdykKPj7CoCBzdGF0aWMgaW5saW5lIGJvb2wg cGZuX2luX2hwYWdlKHN0cnVjdCBwYWdlICpocGFnZSwgdW5zaWduZWQgbG9uZyBwZm4pCj4+wqAg ewo+PsKgIHVuc2lnbmVkIGxvbmcgaHBhZ2VfcGZuID0gcGFnZV90b19wZm4oaHBhZ2UpOwo+PiAr CWlmICh1bmxpa2VseShQYWdlSHVnZShocGFnZSkpKQo+PiArCXJldHVybiBwZm4gPT0gaHBhZ2Vf cGZuOwo+PsKgCj4+wqAgLyogVEhQIGNhbiBiZSByZWZlcmVuY2VkIGJ5IGFueSBzdWJwYWdlICov Cj4+wqAgcmV0dXJuIHBmbiA+PSBocGFnZV9wZm4gJiYgcGZuIC0gaHBhZ2VfcGZuIDwgaHBhZ2Vf bnJfcGFnZXMoaHBhZ2UpOwo+PiAtLQo+PiAxLjguMy4xCj4+Cj4+Cj4KPi0tCj4gS2lyaWxsIEEu IFNodXRlbW92