[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PATCH v3 4/9] mm: convert PTE table entries in ptep_get()
- To: Muhammad Usama Anjum <usama.anjum@xxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Lorenzo Stoakes <ljs@xxxxxxxxxx>, "Liam R. Howlett" <liam@xxxxxxxxxxxxx>, Vlastimil Babka <vbabka@xxxxxxxxxx>, Mike Rapoport <rppt@xxxxxxxxxx>, Suren Baghdasaryan <surenb@xxxxxxxxxx>, Michal Hocko <mhocko@xxxxxxxx>, Xu Xin <xu.xin16@xxxxxxxxxx>, Chengming Zhou <chengming.zhou@xxxxxxxxx>, Jann Horn <jannh@xxxxxxxxxx>, Muchun Song <muchun.song@xxxxxxxxx>, Oscar Salvador <osalvador@xxxxxxx>, Pedro Falcato <pfalcato@xxxxxxx>, Arnd Bergmann <arnd@xxxxxxxx>, Will Deacon <will@xxxxxxxxxx>, "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxx>, Nick Piggin <npiggin@xxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>, Rik van Riel <riel@xxxxxxxxxxx>, Harry Yoo <harry@xxxxxxxxxx>, Lance Yang <lance.yang@xxxxxxxxx>, Chris Li <chrisl@xxxxxxxxxx>, Kairui Song <kasong@xxxxxxxxxxx>, Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>, Nhat Pham <nphamcs@xxxxxxxxx>, Baoquan He <baoquan.he@xxxxxxxxx>, Barry Song <baohua@xxxxxxxxxx>, Youngjun Park <youngjun.park@xxxxxxx>, Uladzislau Rezki <urezki@xxxxxxxxx>, Steven Rostedt <rostedt@xxxxxxxxxxx>, Masami Hiramatsu <mhiramat@xxxxxxxxxx>, Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>, Alexei Starovoitov <ast@xxxxxxxxxx>, Daniel Borkmann <daniel@xxxxxxxxxxxxx>, Andrii Nakryiko <andrii@xxxxxxxxxx>, Eduard Zingerman <eddyz87@xxxxxxxxx>, Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx>, Martin KaFai Lau <martin.lau@xxxxxxxxx>, Song Liu <song@xxxxxxxxxx>, Yonghong Song <yonghong.song@xxxxxxxxx>, Jiri Olsa <jolsa@xxxxxxxxxx>, Emil Tsalapatis <emil@xxxxxxxxxxxxxxx>, Ihor Solodrai <ihor.solodrai@xxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>, Namhyung Kim <namhyung@xxxxxxxxxx>, Mark Rutland <mark.rutland@xxxxxxx>, Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>, Ian Rogers <irogers@xxxxxxxxxx>, Adrian Hunter <adrian.hunter@xxxxxxxxx>, James Clark <james.clark@xxxxxxxxxx>, SJ Park <sj@xxxxxxxxxx>, "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>, Jan Kara <jack@xxxxxxx>, Jason Gunthorpe <jgg@xxxxxxxx>, John Hubbard <jhubbard@xxxxxxxxxx>, Peter Xu <peterx@xxxxxxxxxx>, Leon Romanovsky <leon@xxxxxxxxxx>, Zi Yan <ziy@xxxxxxxxxx>, Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>, Nico Pache <nico.pache@xxxxxxxxx>, Ryan Roberts <ryan.roberts@xxxxxxx>, Dev Jain <dev.jain@xxxxxxx>, Usama Arif <usama.arif@xxxxxxxxx>, Kiryl Shutsemau <kas@xxxxxxxxxx>, Andrey Ryabinin <ryabinin.a.a@xxxxxxxxx>, Alexander Potapenko <glider@xxxxxxxxxx>, Andrey Konovalov <andreyknvl@xxxxxxxxx>, Dmitry Vyukov <dvyukov@xxxxxxxxxx>, Vincenzo Frascino <vincenzo.frascino@xxxxxxx>, Miaohe Lin <linmiaohe@xxxxxxxxxx>, Naoya Horiguchi <nao.horiguchi@xxxxxxxxx>, Matthew Brost <matthew.brost@xxxxxxxxx>, Joshua Hahn <joshua.hahnjy@xxxxxxxxx>, Rakie Kim <rakie.kim@xxxxxx>, Byungchul Park <byungchul@xxxxxx>, Gregory Price <gourry@xxxxxxxxxx>, Ying Huang <ying.huang@xxxxxxxxxxxxxxxxx>, Alistair Popple <apopple@xxxxxxxxxx>, Dennis Zhou <dennis@xxxxxxxxxx>, Tejun Heo <tj@xxxxxxxxxx>, Christoph Lameter <cl@xxxxxxxxxx>, Johannes Weiner <hannes@xxxxxxxxxxx>, Qi Zheng <qi.zheng@xxxxxxxxx>, Shakeel Butt <shakeel.butt@xxxxxxxxx>, Axel Rasmussen <axelrasmussen@xxxxxxxxxx>, Yuanchu Xie <yuanchu@xxxxxxxxxx>, Wei Xu <weixugc@xxxxxxxxxx>, Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx>, Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>, Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>, Tvrtko Ursulin <tursulin@xxxxxxxxxxx>, David Airlie <airlied@xxxxxxxxx>, Simona Vetter <simona@xxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>
- From: "David Hildenbrand (Arm)" <david@xxxxxxxxxx>
- Date: Thu, 1 Oct 2026 13:27:04 +0200
- Authentication-results: eu.smtp.expurgate.cloud; dkim=pass header.s=k20260515 header.d=kernel.org header.i="@kernel.org" header.h="Date:Subject:To:Cc:References:From:In-Reply-To"
- Autocrypt: addr=david@xxxxxxxxxx; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzS5EYXZpZCBIaWxk ZW5icmFuZCAoQ3VycmVudCkgPGRhdmlkQGtlcm5lbC5vcmc+wsGQBBMBCAA6AhsDBQkmWAik AgsJBBUKCQgCFgICHgUCF4AWIQQb2cqtc1xMOkYN/MpN3hD3AP+DWgUCaYJt/AIZAQAKCRBN 3hD3AP+DWriiD/9BLGEKG+N8L2AXhikJg6YmXom9ytRwPqDgpHpVg2xdhopoWdMRXjzOrIKD g4LSnFaKneQD0hZhoArEeamG5tyo32xoRsPwkbpIzL0OKSZ8G6mVbFGpjmyDLQCAxteXCLXz ZI0VbsuJKelYnKcXWOIndOrNRvE5eoOfTt2XfBnAapxMYY2IsV+qaUXlO63GgfIOg8RBaj7x 3NxkI3rV0SHhI4GU9K6jCvGghxeS1QX6L/XI9mfAYaIwGy5B68kF26piAVYv/QZDEVIpo3t7 /fjSpxKT8plJH6rhhR0epy8dWRHk3qT5tk2P85twasdloWtkMZ7FsCJRKWscm1BLpsDn6EQ4 jeMHECiY9kGKKi8dQpv3FRyo2QApZ49NNDbwcR0ZndK0XFo15iH708H5Qja/8TuXCwnPWAcJ DQoNIDFyaxe26Rx3ZwUkRALa3iPcVjE0//TrQ4KnFf+lMBSrS33xDDBfevW9+Dk6IISmDH1R HFq2jpkN+FX/PE8eVhV68B2DsAPZ5rUwyCKUXPTJ/irrCCmAAb5Jpv11S7hUSpqtM/6oVESC 3z/7CzrVtRODzLtNgV4r5EI+wAv/3PgJLlMwgJM90Fb3CB2IgbxhjvmB1WNdvXACVydx55V7 LPPKodSTF29rlnQAf9HLgCphuuSrrPn5VQDaYZl4N/7zc2wcWM7BTQRVy5+RARAA59fefSDR 9nMGCb9LbMX+TFAoIQo/wgP5XPyzLYakO+94GrgfZjfhdaxPXMsl2+o8jhp/hlIzG56taNdt VZtPp3ih1AgbR8rHgXw1xwOpuAd5lE1qNd54ndHuADO9a9A0vPimIes78Hi1/yy+ZEEvRkHk /kDa6F3AtTc1m4rbbOk2fiKzzsE9YXweFjQvl9p+AMw6qd/iC4lUk9g0+FQXNdRs+o4o6Qvy iOQJfGQ4UcBuOy1IrkJrd8qq5jet1fcM2j4QvsW8CLDWZS1L7kZ5gT5EycMKxUWb8LuRjxzZ 3QY1aQH2kkzn6acigU3HLtgFyV1gBNV44ehjgvJpRY2cC8VhanTx0dZ9mj1YKIky5N+C0f21 zvntBqcxV0+3p8MrxRRcgEtDZNav+xAoT3G0W4SahAaUTWXpsZoOecwtxi74CyneQNPTDjNg azHmvpdBVEfj7k3p4dmJp5i0U66Onmf6mMFpArvBRSMOKU9DlAzMi4IvhiNWjKVaIE2Se9BY FdKVAJaZq85P2y20ZBd08ILnKcj7XKZkLU5FkoA0udEBvQ0f9QLNyyy3DZMCQWcwRuj1m73D sq8DEFBdZ5eEkj1dCyx+t/ga6x2rHyc8Sl86oK1tvAkwBNsfKou3v+jP/l14a7DGBvrmlYjO 59o3t6inu6H7pt7OL6u6BQj7DoMAEQEAAcLBfAQYAQgAJgIbDBYhBBvZyq1zXEw6Rg38yk3e EPcA/4NaBQJonNqrBQkmWAihAAoJEE3eEPcA/4NaKtMQALAJ8PzprBEXbXcEXwDKQu+P/vts IfUb1UNMfMV76BicGa5NCZnJNQASDP/+bFg6O3gx5NbhHHPeaWz/VxlOmYHokHodOvtL0WCC 8A5PEP8tOk6029Z+J+xUcMrJClNVFpzVvOpb1lCbhjwAV465Hy+NUSbbUiRxdzNQtLtgZzOV Zw7jxUCs4UUZLQTCuBpFgb15bBxYZ/BL9MbzxPxvfUQIPbnzQMcqtpUs21CMK2PdfCh5c4gS sDci6D5/ZIBw94UQWmGpM/O1ilGXde2ZzzGYl64glmccD8e87OnEgKnH3FbnJnT4iJchtSvx yJNi1+t0+qDti4m88+/9IuPqCKb6Stl+s2dnLtJNrjXBGJtsQG/sRpqsJz5x1/2nPJSRMsx9 5YfqbdrJSOFXDzZ8/r82HgQEtUvlSXNaXCa95ez0UkOG7+bDm2b3s0XahBQeLVCH0mw3RAQg r7xDAYKIrAwfHHmMTnBQDPJwVqxJjVNr7yBic4yfzVWGCGNE4DnOW0vcIeoyhy9vnIa3w1uZ 3iyY2Nsd7JxfKu1PRhCGwXzRw5TlfEsoRI7V9A8isUCoqE2Dzh3FvYHVeX4Us+bRL/oqareJ CIFqgYMyvHj7Q06kTKmauOe4Nf0l0qEkIuIzfoLJ3qr5UyXc2hLtWyT9Ir+lYlX9efqh7mOY qIws/H2t
- Cc: linux-kernel@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, linux-trace-kernel@xxxxxxxxxxxxxxx, bpf@xxxxxxxxxxxxxxx, linux-perf-users@xxxxxxxxxxxxxxx, damon@xxxxxxxxxxxxxxx, kasan-dev@xxxxxxxxxxxxxxxx, intel-gfx@xxxxxxxxxxxxxxxxxxxxx, dri-devel@xxxxxxxxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Thu, 01 Oct 2026 11:32:51 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 9/22/26 19:12, Muhammad Usama Anjum wrote:
> ptep_get() now accepts a pointer to hw_pte_t storage but must continue to
> return a software PTE value. Add __pte_from_hw for both generic hw_pte_t
> definitions. Read the hw_pte_t table element atomically before converting
> it to pte_t.
>
> Signed-off-by: Muhammad Usama Anjum <usama.anjum@xxxxxxx>
Acked-by: David Hildenbrand (Arm) <david@xxxxxxxxxx>
--
Cheers,
David
|
