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Sun, 18 Jan 2026 00:14:11 -0800 (PST) Received: from [192.168.2.226] ([114.92.45.6]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2a7190abcf0sm63240195ad.12.2026.01.18.00.13.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 18 Jan 2026 00:14:11 -0800 (PST) Message-ID: <85a0be43-3598-435d-a50e-9403b7e963f7@gmail.com> Date: Sun, 18 Jan 2026 16:13:47 +0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] mm/pgtable: convert pgtable_t to ptdesc pointer From: Alex Shi 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> <1d110134-89ab-474b-bca6-cfbfd4b5057f@gmail.com> Content-Language: en-US In-Reply-To: <1d110134-89ab-474b-bca6-cfbfd4b5057f@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260118_001413_725581_142CDF6B X-CRM114-Status: GOOD ( 20.36 ) 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 CgpPbiAyMDI2LzEvOCAxMDoyMywgQWxleCBTaGkgd3JvdGU6Cj4gCj4gCj4gT24gMjAyNi8xLzcg MjI6NDgsIE1hdHRoZXcgV2lsY294IHdyb3RlOgo+PiBPbiBXZWQsIEphbiAwNywgMjAyNiBhdCAw NToyODozNlBNICswODAwLCBBbGV4IFNoaSB3cm90ZToKPj4+IFJpZ2h0LCBJIHdpbGwgZml4IHRo aXMuIGFuZCBzZW50IHRoZSAybmQgdmVyc2lvbi4KPj4gTm8sIHRoZSBwYXRjaCBpcyBzdHVwaWQg YW5kIHdyb25nLsKgIERvbid0IHNlbmQgYSB2Mi7CoCBZb3Ugc2VlbSB0byBoYXZlIGEKPj4gaGFp cnRyaWdnZXIgcmVzZW5kLCBzbyBJJ20gdHJ5aW5nIHRvIHByZXZlbnQgYSB2MiBiZWluZyBzZW50 IGluc3RlYWQgb2YKPj4gc2VuZGluZyBhIHBhdGllbnQgcmVwbHkuCj4gCj4gSGkgTWF0dGhldywK PiAKPiBJIGhlYXIgeW914oCUbm8gdjIgd2lsbCBiZSBzZW50Lgo+IGJ1dCBzb3JyeSBmb3IgYSBi aXQgY29uZnVzaW5nLCB3aGF0J3MgeW91ciBleHBlY3RlZCBmaXg/IGlzIHRoZSB0b28gCj4gcXVp Y2sgcmVzZW50aW5nPyBvciB0aGUgZGlyZWN0aW9uIHRvIGFsaWdubWVudCBwZ3RhYmxlX3Qgd2l0 aCBwdGRlc2MgaXMgCj4gd3Jvbmc/CgpIaSBXaWxseSwgRG8geW91IG1pbmQgdG8gc2hhcmUgdGhl IGRldGFpbGVkIGNvbmNlcm4gZm9yIHRoaXMgcGF0Y2g/CgpUaGFua3MKCj4gCj4gSWYgaXQncyB0 aGUgZmlyc3QuIHRoZSBuZXcgY2hhbmdlIGZvciByZXZpZXcgYWRkcmVzcyBNaWtlJ3MgY29uY2Vy bi4KPiBkaWZmIC0tZ2l0IGEvYXJjaC9hcm0vaW5jbHVkZS9hc20vcGdhbGxvYy5oIGIvYXJjaC9h cm0vaW5jbHVkZS9hc20vIAo+IHBnYWxsb2MuaAo+IGluZGV4IGExN2YwMTIzNWMyOS4uYTIwNGMz YWM4MDBhIDEwMDY0NAo+IC0tLSBhL2FyY2gvYXJtL2luY2x1ZGUvYXNtL3BnYWxsb2MuaAo+ICsr KyBiL2FyY2gvYXJtL2luY2x1ZGUvYXNtL3BnYWxsb2MuaAo+IEBAIC05NCwxMyArOTQsMTMgQEAg cHRlX2FsbG9jX29uZV9rZXJuZWwoc3RydWN0IG1tX3N0cnVjdCAqbW0pCj4gIMKgc3RhdGljIGlu bGluZSBwZ3RhYmxlX3QKPiAgwqBwdGVfYWxsb2Nfb25lKHN0cnVjdCBtbV9zdHJ1Y3QgKm1tKQo+ ICDCoHsKPiAtwqDCoMKgwqDCoMKgIHN0cnVjdCBwYWdlICpwdGU7Cj4gK8KgwqDCoMKgwqDCoCBz dHJ1Y3QgcHRkZXNjICpwdGU7Cj4gCj4gIMKgwqDCoMKgwqDCoMKgIHB0ZSA9IF9fcHRlX2FsbG9j X29uZShtbSwgR0ZQX1BHVEFCTEVfVVNFUiB8IFBHVEFCTEVfSElHSE1FTSk7Cj4gIMKgwqDCoMKg wqDCoMKgIGlmICghcHRlKQo+ICDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgcmV0dXJu IE5VTEw7Cj4gLcKgwqDCoMKgwqDCoCBpZiAoIVBhZ2VIaWdoTWVtKHB0ZSkpCj4gLcKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqAgY2xlYW5fcHRlX3RhYmxlKHBhZ2VfYWRkcmVzcyhwdGUpKTsK PiArwqDCoMKgwqDCoMKgIGlmICghUGFnZUhpZ2hNZW0ocHRkZXNjX3BhZ2UocHRlKSkpCj4gK8Kg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqAgY2xlYW5fcHRlX3RhYmxlKHB0ZGVzY19hZGRyZXNz KHB0ZSkpOwo+ICDCoMKgwqDCoMKgwqDCoCByZXR1cm4gcHRlOwo+ICDCoH0KPiAKPiBAQCAtMTQx LDcgKzE0MSw3IEBAIHBtZF9wb3B1bGF0ZShzdHJ1Y3QgbW1fc3RydWN0ICptbSwgcG1kX3QgKnBt ZHAsIAo+IHBndGFibGVfdCBwdGVwKQo+ICDCoMKgwqDCoMKgwqDCoCBlbHNlCj4gIMKgwqDCoMKg wqDCoMKgwqDCoMKgwqDCoMKgwqDCoCBwcm90ID0gX1BBR0VfVVNFUl9UQUJMRTsKPiAKPiAtwqDC oMKgwqDCoMKgIF9fcG1kX3BvcHVsYXRlKHBtZHAsIHBhZ2VfdG9fcGh5cyhwdGVwKSwgcHJvdCk7 Cj4gK8KgwqDCoMKgwqDCoCBfX3BtZF9wb3B1bGF0ZShwbWRwLCBwYWdlX3RvX3BoeXMocHRkZXNj X3BhZ2UocHRlcCkpLCBwcm90KTsKPiAgwqB9Cj4gCj4gIMKgI2VuZGlmIC8qIENPTkZJR19NTVUg Ki8KCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51 eC1yaXNjdiBtYWlsaW5nIGxpc3QKbGludXgtcmlzY3ZAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRw Oi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LXJpc2N2Cg==