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smtp.aliyun-inc.com(127.0.0.1); Thu, 09 Jul 2020 02:13:55 +0800 Subject: Re: [RFC PATCH] mm: avoid access flag update TLB flush for retried page fault To: Catalin Marinas References: <1594148072-91273-1-git-send-email-yang.shi@linux.alibaba.com> <20200708075959.GA25498@willie-the-truck> <7cf3b3fe-76bb-edc4-7421-9313ef949d7b@linux.alibaba.com> <20200708172912.GE6308@gaia> From: Yang Shi Message-ID: Date: Wed, 8 Jul 2020 11:13:50 -0700 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:52.0) Gecko/20100101 Thunderbird/52.7.0 MIME-Version: 1.0 In-Reply-To: <20200708172912.GE6308@gaia> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200708_141403_386203_02CD285B X-CRM114-Status: GOOD ( 29.52 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: xuyu@linux.alibaba.com, will.deacon@arm.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, hannes@cmpxchg.org, akpm@linux-foundation.org, Will Deacon , linux-arm-kernel@lists.infradead.org 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 CgpPbiA3LzgvMjAgMTA6MjkgQU0sIENhdGFsaW4gTWFyaW5hcyB3cm90ZToKPiBPbiBXZWQsIEp1 bCAwOCwgMjAyMCBhdCAwOTo0MDoxMUFNIC0wNzAwLCBZYW5nIFNoaSB3cm90ZToKPj4gT24gNy84 LzIwIDE6MDAgQU0sIFdpbGwgRGVhY29uIHdyb3RlOgo+Pj4gT24gV2VkLCBKdWwgMDgsIDIwMjAg YXQgMDI6NTQ6MzJBTSArMDgwMCwgWWFuZyBTaGkgd3JvdGU6Cj4+Pj4gUmVjZW50bHkgd2UgZm91 bmQgcmVncmVzc2lvbiB3aGVuIHJ1bm5pbmcgd2lsbF9pdF9zY2FsZS9wYWdlX2ZhdWx0MyB0ZXN0 Cj4+Pj4gb24gQVJNNjQuICBPdmVyIDcwJSBkb3duIGZvciB0aGUgbXVsdGkgcHJvY2Vzc2VzIGNh c2VzIGFuZCBvdmVyIDIwJSBkb3duCj4+Pj4gZm9yIHRoZSBtdWx0aSB0aHJlYWRzIGNhc2VzLiAg SXQgdHVybnMgb3V0IHRoZSByZWdyZXNzaW9uIGlzIGNhdXNlZCBieSBjb21taXQKPj4+PiA4OWIx 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