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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6A84BC369A6 for ; Mon, 7 Apr 2025 16:27:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Message-ID:MIME-Version: Content-Type:Content-Transfer-Encoding:References:In-Reply-To:Subject:Cc:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=18LZ3UeBeD8+PKgIIQH47A2OwH8h/rcoFydIPYn9mgU=; b=i5H7UlxVE/7sYrQJzo9KQ8dm2R LJTekT0xbLXyCO8NPTjDHwBb7AduCaJzRVrcaYR5R65ulJgjRCAa6Hf2l/8hKcn1q94MZcSZcMygi hyH0qUzcrhkTw/ZkcESScDX4WOz4Ahc2Vx+Pu7G8nvd0FTYLfFFZ2H4+whTmzLnUPS+Gz6iqWn1/y kWYlmMsjQ6Hvmvy/bQhg9PdWcmasNz//CBIkAC/kMslJ85vingG5xXeIhpas+wgOf5u5nFJ9JgBZp mbLfWnrDv2aeZDE1kwuBLQXV4/01leY/tO/9CpoozhyuItHM82gH5A1vlQMmGG5b+DzDaKs0DWJpf YGqSQxug==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.1 #2 (Red Hat Linux)) id 1u1pK6-00000001Amg-1zhW; Mon, 07 Apr 2025 16:27:46 +0000 Received: from m16.mail.163.com ([220.197.31.4]) by bombadil.infradead.org with esmtp (Exim 4.98.1 #2 (Red Hat Linux)) id 1u1m1c-00000000NX4-1dQt for linux-arm-kernel@lists.infradead.org; Mon, 07 Apr 2025 12:56:30 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=Date:From:Subject:Content-Type:MIME-Version: Message-ID; bh=WMahgglQfhKL4OuHDIAWoSXkPdUPZsYVvzA3TCjbEf0=; b=X gQnXrBJb2R3WZcdOyq6khpMjlzuHyfF5MIDl29e+2RZQA47I/kH5MmOXRE8kMPy7 FXhOVSL+UZDGWuhIL6XL/otpGtij/wphUcNCk8zWYJKFs6b9rgiAlPPWtK1xHNRL Y5YfFPlKGAZXDq76HgbgMd3XdLiCUvAoNhE2AmtcLs= Received: from xavier_qy$163.com ( [117.131.123.221] ) by ajax-webmail-wmsvr-40-107 (Coremail) ; Mon, 7 Apr 2025 20:56:06 +0800 (CST) X-Originating-IP: [117.131.123.221] Date: Mon, 7 Apr 2025 20:56:06 +0800 (CST) From: Xavier To: "Lance Yang" Cc: akpm@linux-foundation.org, baohua@kernel.org, catalin.marinas@arm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, ryan.roberts@arm.com, will@kernel.org Subject: Re:Re: [PATCH v1] mm/contpte: Optimize loop to reduce redundant operations X-Priority: 3 X-Mailer: Coremail Webmail Server Version XT5.0.14 build 20240801(9da12a7b) Copyright (c) 2002-2025 www.mailtech.cn 163com In-Reply-To: <20250407112922.17766-1-ioworker0@gmail.com> References: <20250407092243.2207837-1-xavier_qy@163.com> <20250407112922.17766-1-ioworker0@gmail.com> X-NTES-SC: AL_Qu2fBvyYv00t4CWcYekfmkgWgus/WcW2u/Qj3IRSO5FwjCHp5BA7Y1lTE0bM2/CDFx2OkAiHXThMzOpkY49pWoEMkBbwyGARC+fCx4rMd7OOzw== Content-Transfer-Encoding: base64 Content-Type: text/plain; charset=GBK MIME-Version: 1.0 Message-ID: <5e3f976f.bca1.19610528896.Coremail.xavier_qy@163.com> X-Coremail-Locale: zh_CN X-CM-TRANSID: aygvCgCHr+dmy_NnpzeQAA--.53262W X-CM-SenderInfo: 50dyxvpubt5qqrwthudrp/1tbiTQYoEGfzsgefNwADs5 X-Coremail-Antispam: 1U5529EdanIXcx71UUUUU7vcSsGvfC2KfnxnUU== X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250407_055628_740087_EE2118B4 X-CRM114-Status: UNSURE ( 7.93 ) X-CRM114-Notice: Please train this message. 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org CgpIaSBMYW5jZSwKClRoYW5rcyBmb3IgeW91ciBmZWVkYmFjaywgbXkgcmVzcG9uc2UgaXMgYXMg Zm9sbG93cy4KCi0tClRoYW5rcywKWGF2aWVyCgoKCgoKQXQgMjAyNS0wNC0wNyAxOToyOToyMiwg IkxhbmNlIFlhbmciIDxpb3dvcmtlcjBAZ21haWwuY29tPiB3cm90ZToKPlRoYW5rcyBmb3IgdGhl IHBhdGNoLiBXb3VsZCB0aGUgZm9sbG93aW5nIGNoYW5nZSBiZSBiZXR0ZXI/Cj4KPmRpZmYgLS1n aXQgYS9hcmNoL2FybTY0L21tL2NvbnRwdGUuYyBiL2FyY2gvYXJtNjQvbW0vY29udHB0ZS5jCj5p bmRleCA1NTEwN2QyN2QzZjguLjY0ZWIzYjJmYmYwNiAxMDA2NDQKPi0tLSBhL2FyY2gvYXJtNjQv bW0vY29udHB0ZS5jCj4rKysgYi9hcmNoL2FybTY0L21tL2NvbnRwdGUuYwo+QEAgLTE3NCw2ICsx NzQsOSBAQCBwdGVfdCBjb250cHRlX3B0ZXBfZ2V0KHB0ZV90ICpwdGVwLCBwdGVfdCBvcmlnX3B0 ZSkKPiAKPiAJCWlmIChwdGVfeW91bmcocHRlKSkKPiAJCQlvcmlnX3B0ZSA9IHB0ZV9ta3lvdW5n KG9yaWdfcHRlKTsKPisKPisJCWlmIChwdGVfeW91bmcob3JpZ19wdGUpICYmIHB0ZV9kaXJ0eShv cmlnX3B0ZSkpCj4rCQkJYnJlYWs7Cj4gCX0KPiAKPiAJcmV0dXJuIG9yaWdfcHRlOwo+LS0gCj4K PldlIGNhbiBjaGVjayB0aGUgb3JpZ19wdGUgZmxhZ3MgZGlyZWN0bHkgaW5zdGVhZCBvZiB1c2lu ZyBleHRyYSBib29sZWFuCj52YXJpYWJsZXMsIHdoaWNoIGdpdmVzIHVzIGFuIGVhcmx5LWV4aXQg d2hlbiBib3RoIGRpcnR5IGFuZCB5b3VuZyBmbGFncwo+YXJlIHNldC4KWW91ciB3YXkgb2Ygd3Jp dGluZyB0aGUgY29kZSBpcyBpbmRlZWQgbW9yZSBjb25jaXNlLiBIb3dldmVyLCBJIHRoaW5rCiB1 c2luZyBib29sZWFuIHZhcmlhYmxlcyBtaWdodCBiZSBtb3JlIGVmZmljaWVudC4gQWx0aG91Z2gg aXQgaW50cm9kdWNlcwogYWRkaXRpb25hbCB2YXJpYWJsZXMsIGNvbXBhcmluZyBib29sZWFuIHZh bHVlcyBpcyBsaWtlbHkgdG8gYmUgbW9yZQogZWZmaWNpZW50IHRoYW4gY2hlY2tpbmcgYml0IHNl dHRpbmdzLgoKPgo+QWxzbywgaXMgdGhpcyBvcHRpbWl6YXRpb24gcmVhbGx5IG5lZWRlZCBmb3Ig dGhlIGNvbW1vbiBjYXNlPwpUaGlzIGZ1bmN0aW9uIGlzIG9uIGEgaGlnaC1mcmVxdWVuY3kgZXhl Y3V0aW9uIHBhdGguIER1cmluZyBkZWJ1Z2dpbmcsCiBJIGZvdW5kIHRoYXQgaW4gbW9zdCBjYXNl cywgdGhlIGZpcnN0IGZldyBwYWdlcyBhcmUgYWxyZWFkeSBtYXJrZWQgYXMKIGJvdGggZGlydHkg YW5kIHlvdW5nLiBCdXQgY3VycmVudGx5LCB0aGUgcHJvZ3JhbSBzdGlsbCBoYXMgdG8gY29tcGxl dGUKIHRoZSBlbnRpcmUgbG9vcCBvZiAxNiBwdGVwIGl0ZXJhdGlvbnMsIHdoaWNoIHNlcmlvdXNs eSByZWR1Y2VzIHRoZSBlZmZpY2llbmN5Lgo+Cj5UaGFua3MsCj5MYW5jZQo=