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Mon, 7 Apr 2025 20:56:06 +0800 (CST) 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 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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== 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=