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[104.194.78.75]) by smtp.gmail.com with ESMTPSA id 00721157ae682-790ae603282sm21321087b3.13.2026.01.07.18.23.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 07 Jan 2026 18:23:48 -0800 (PST) Message-ID: <1d110134-89ab-474b-bca6-cfbfd4b5057f@gmail.com> Date: Thu, 8 Jan 2026 10:23:19 +0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] mm/pgtable: convert pgtable_t to ptdesc pointer To: Matthew Wilcox Cc: Mike Rapoport , alexs@kernel.org, Richard Henderson , Matt Turner , Magnus Lindholm , Vineet Gupta , Russell King , Will Deacon , "Aneesh Kumar K.V" , Andrew Morton , Nick Piggin , Peter Zijlstra , Catalin Marinas , Guo Ren , Brian Cain , Huacai Chen , WANG Xuerui , Geert Uytterhoeven , Michal Simek , Thomas Bogendoerfer , Dinh Nguyen , Jonas Bonn , Stefan Kristiansson , Stafford Horne , "James E.J. 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Howlett" , Vlastimil Babka , Suren Baghdasaryan , Michal Hocko , "open list:ALPHA PORT" , open list , "open list:SYNOPSYS ARC ARCHITECTURE" , "moderated list:ARM PORT" , "open list:MMU GATHER AND TLB INVALIDATION" , "open list:MMU GATHER AND TLB INVALIDATION" , "open list:C-SKY ARCHITECTURE" , "open list:QUALCOMM HEXAGON ARCHITECTURE" , "open list:LOONGARCH" , "open list:M68K ARCHITECTURE" , "open list:MIPS" , "open list:OPENRISC ARCHITECTURE" , "open list:PARISC ARCHITECTURE" , "open list:RISC-V ARCHITECTURE" , "open list:SUPERH" , "open list:USER-MODE LINUX (UML)" References: <20260107064642.15771-1-alexs@kernel.org> <080e493a-e4f1-4c97-a3e1-f76f126b5213@gmail.com> Content-Language: en-US From: Alex Shi In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260107_182351_128896_CA730653 X-CRM114-Status: GOOD ( 15.43 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org CgpPbiAyMDI2LzEvNyAyMjo0OCwgTWF0dGhldyBXaWxjb3ggd3JvdGU6Cj4gT24gV2VkLCBKYW4g MDcsIDIwMjYgYXQgMDU6Mjg6MzZQTSArMDgwMCwgQWxleCBTaGkgd3JvdGU6Cj4+IFJpZ2h0LCBJ IHdpbGwgZml4IHRoaXMuIGFuZCBzZW50IHRoZSAybmQgdmVyc2lvbi4KPiBObywgdGhlIHBhdGNo IGlzIHN0dXBpZCBhbmQgd3JvbmcuICBEb24ndCBzZW5kIGEgdjIuICBZb3Ugc2VlbSB0byBoYXZl IGEKPiBoYWlydHJpZ2dlciByZXNlbmQsIHNvIEknbSB0cnlpbmcgdG8gcHJldmVudCBhIHYyIGJl aW5nIHNlbnQgaW5zdGVhZCBvZgo+IHNlbmRpbmcgYSBwYXRpZW50IHJlcGx5LgoKSGkgTWF0dGhl dywKCkkgaGVhciB5b3XigJRubyB2MiB3aWxsIGJlIHNlbnQuCmJ1dCBzb3JyeSBmb3IgYSBiaXQg Y29uZnVzaW5nLCB3aGF0J3MgeW91ciBleHBlY3RlZCBmaXg/IGlzIHRoZSB0b28gCnF1aWNrIHJl c2VudGluZz8gb3IgdGhlIGRpcmVjdGlvbiB0byBhbGlnbm1lbnQgcGd0YWJsZV90IHdpdGggcHRk ZXNjIGlzIAp3cm9uZz8KCklmIGl0J3MgdGhlIGZpcnN0LiB0aGUgbmV3IGNoYW5nZSBmb3IgcmV2 aWV3IGFkZHJlc3MgTWlrZSdzIGNvbmNlcm4uCmRpZmYgLS1naXQgYS9hcmNoL2FybS9pbmNsdWRl L2FzbS9wZ2FsbG9jLmggYi9hcmNoL2FybS9pbmNsdWRlL2FzbS9wZ2FsbG9jLmgKaW5kZXggYTE3 ZjAxMjM1YzI5Li5hMjA0YzNhYzgwMGEgMTAwNjQ0Ci0tLSBhL2FyY2gvYXJtL2luY2x1ZGUvYXNt L3BnYWxsb2MuaAorKysgYi9hcmNoL2FybS9pbmNsdWRlL2FzbS9wZ2FsbG9jLmgKQEAgLTk0LDEz ICs5NCwxMyBAQCBwdGVfYWxsb2Nfb25lX2tlcm5lbChzdHJ1Y3QgbW1fc3RydWN0ICptbSkKICBz dGF0aWMgaW5saW5lIHBndGFibGVfdAogIHB0ZV9hbGxvY19vbmUoc3RydWN0IG1tX3N0cnVjdCAq bW0pCiAgewotICAgICAgIHN0cnVjdCBwYWdlICpwdGU7CisgICAgICAgc3RydWN0IHB0ZGVzYyAq cHRlOwoKICAgICAgICAgcHRlID0gX19wdGVfYWxsb2Nfb25lKG1tLCBHRlBfUEdUQUJMRV9VU0VS IHwgUEdUQUJMRV9ISUdITUVNKTsKICAgICAgICAgaWYgKCFwdGUpCiAgICAgICAgICAgICAgICAg cmV0dXJuIE5VTEw7Ci0gICAgICAgaWYgKCFQYWdlSGlnaE1lbShwdGUpKQotICAgICAgICAgICAg ICAgY2xlYW5fcHRlX3RhYmxlKHBhZ2VfYWRkcmVzcyhwdGUpKTsKKyAgICAgICBpZiAoIVBhZ2VI aWdoTWVtKHB0ZGVzY19wYWdlKHB0ZSkpKQorICAgICAgICAgICAgICAgY2xlYW5fcHRlX3RhYmxl KHB0ZGVzY19hZGRyZXNzKHB0ZSkpOwogICAgICAgICByZXR1cm4gcHRlOwogIH0KCkBAIC0xNDEs NyArMTQxLDcgQEAgcG1kX3BvcHVsYXRlKHN0cnVjdCBtbV9zdHJ1Y3QgKm1tLCBwbWRfdCAqcG1k cCwgCnBndGFibGVfdCBwdGVwKQogICAgICAgICBlbHNlCiAgICAgICAgICAgICAgICAgcHJvdCA9 IF9QQUdFX1VTRVJfVEFCTEU7CgotICAgICAgIF9fcG1kX3BvcHVsYXRlKHBtZHAsIHBhZ2VfdG9f cGh5cyhwdGVwKSwgcHJvdCk7CisgICAgICAgX19wbWRfcG9wdWxhdGUocG1kcCwgcGFnZV90b19w aHlzKHB0ZGVzY19wYWdlKHB0ZXApKSwgcHJvdCk7CiAgfQoKICAjZW5kaWYgLyogQ09ORklHX01N VSAqLwoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGlu dXgtcmlzY3YgbWFpbGluZyBsaXN0CmxpbnV4LXJpc2N2QGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0 cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1yaXNjdgo=