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[79.139.233.37]) by smtp.googlemail.com with ESMTPSA id z14sm6594934ljm.86.2020.01.26.06.48.05 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 26 Jan 2020 06:48:05 -0800 (PST) Subject: Re: [PATCH 3/5] mm/mremap: use pmd_addr_end to calculate next in move_page_tables() To: Wei Yang , akpm@linux-foundation.org, dan.j.williams@intel.com, aneesh.kumar@linux.ibm.com, kirill@shutemov.name, yang.shi@linux.alibaba.com, thellstrom@vmware.com, Thierry Reding , Jon Hunter References: <20200117232254.2792-1-richardw.yang@linux.intel.com> <20200117232254.2792-4-richardw.yang@linux.intel.com> From: Dmitry Osipenko Message-ID: <7147774a-14e9-4ff3-1548-4565f0d214d5@gmail.com> Date: Sun, 26 Jan 2020 17:47:57 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.3.0 MIME-Version: 1.0 In-Reply-To: <20200117232254.2792-4-richardw.yang@linux.intel.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200126_064809_189915_6A9683C9 X-CRM114-Status: GOOD ( 18.27 ) 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: "linux-tegra@vger.kernel.org" , linux-mm@kvack.org, linux-kernel@vger.kernel.org, "linux-arm-kernel@lists.infradead.org" , Russell King - ARM Linux Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org MTguMDEuMjAyMCAwMjoyMiwgV2VpIFlhbmcg0L/QuNGI0LXRgjoKPiBVc2UgdGhlIGdlbmVyYWwg aGVscGVyIGluc3RlYWQgb2YgZG8gaXQgYnkgaGFuZC4KPiAKPiBTaWduZWQtb2ZmLWJ5OiBXZWkg WWFuZyA8cmljaGFyZHcueWFuZ0BsaW51eC5pbnRlbC5jb20+Cj4gLS0tCj4gIG1tL21yZW1hcC5j IHwgNyArKy0tLS0tCj4gIDEgZmlsZSBjaGFuZ2VkLCAyIGluc2VydGlvbnMoKyksIDUgZGVsZXRp b25zKC0pCj4gCj4gZGlmZiAtLWdpdCBhL21tL21yZW1hcC5jIGIvbW0vbXJlbWFwLmMKPiBpbmRl eCBjMmFmOGJhNGJhNDMuLmEyNTg5MTRmM2VlMSAxMDA2NDQKPiAtLS0gYS9tbS9tcmVtYXAuYwo+ ICsrKyBiL21tL21yZW1hcC5jCj4gQEAgLTI1MywxMSArMjUzLDggQEAgdW5zaWduZWQgbG9uZyBt b3ZlX3BhZ2VfdGFibGVzKHN0cnVjdCB2bV9hcmVhX3N0cnVjdCAqdm1hLAo+ICAKPiAgCWZvciAo OyBvbGRfYWRkciA8IG9sZF9lbmQ7IG9sZF9hZGRyICs9IGV4dGVudCwgbmV3X2FkZHIgKz0gZXh0 ZW50KSB7Cj4gIAkJY29uZF9yZXNjaGVkKCk7Cj4gLQkJbmV4dCA9IChvbGRfYWRkciArIFBNRF9T SVpFKSAmIFBNRF9NQVNLOwo+IC0JCS8qIGV2ZW4gaWYgbmV4dCBvdmVyZmxvd2VkLCBleHRlbnQg YmVsb3cgd2lsbCBiZSBvayAqLwo+ICsJCW5leHQgPSBwbWRfYWRkcl9lbmQob2xkX2FkZHIsIG9s ZF9lbmQpOwo+ICAJCWV4dGVudCA9IG5leHQgLSBvbGRfYWRkcjsKPiAtCQlpZiAoZXh0ZW50ID4g b2xkX2VuZCAtIG9sZF9hZGRyKQo+IC0JCQlleHRlbnQgPSBvbGRfZW5kIC0gb2xkX2FkZHI7Cj4g IAkJb2xkX3BtZCA9IGdldF9vbGRfcG1kKHZtYS0+dm1fbW0sIG9sZF9hZGRyKTsKPiAgCQlpZiAo IW9sZF9wbWQpCj4gIAkJCWNvbnRpbnVlOwo+IEBAIC0zMDEsNyArMjk4LDcgQEAgdW5zaWduZWQg bG9uZyBtb3ZlX3BhZ2VfdGFibGVzKHN0cnVjdCB2bV9hcmVhX3N0cnVjdCAqdm1hLAo+ICAKPiAg CQlpZiAocHRlX2FsbG9jKG5ld192bWEtPnZtX21tLCBuZXdfcG1kKSkKPiAgCQkJYnJlYWs7Cj4g LQkJbmV4dCA9IChuZXdfYWRkciArIFBNRF9TSVpFKSAmIFBNRF9NQVNLOwo+ICsJCW5leHQgPSBw bWRfYWRkcl9lbmQobmV3X2FkZHIsIG5ld19hZGRyICsgbGVuKTsKPiAgCQlpZiAoZXh0ZW50ID4g bmV4dCAtIG5ld19hZGRyKQo+ICAJCQlleHRlbnQgPSBuZXh0IC0gbmV3X2FkZHI7Cj4gIAkJbW92 ZV9wdGVzKHZtYSwgb2xkX3BtZCwgb2xkX2FkZHIsIG9sZF9hZGRyICsgZXh0ZW50LCBuZXdfdm1h LAo+IAoKSGVsbG8gV2VpLAoKU3RhcnRpbmcgd2l0aCBuZXh0LTIwMjAwMTIyLCBJJ20gc2VlaW5n IHRoZSBmb2xsb3dpbmcgaW4gS01TRyBvbiBOVklESUEKVGVncmEgKEFSTTMyKToKCiAgQlVHOiBC YWQgcnNzLWNvdW50ZXIgc3RhdGUgbW06KHB0cnZhbCkgdHlwZTpNTV9BTk9OUEFHRVMgdmFsOjE5 MAoKYW5kIGV2ZW50dWFsbHkga2VybmVsIGhhbmdzLgoKR2l0J3MgYmlzZWN0aW9uIHBvaW50cyB0 byB0aGlzIHBhdGNoIGFuZCByZXZlcnRpbmcgaXQgaGVscHMuIFBsZWFzZSBmaXgsCnRoYW5rcyBp biBhZHZhbmNlLgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X18KbGludXgtYXJtLWtlcm5lbCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0cy5p bmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8v bGludXgtYXJtLWtlcm5lbAo=