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b=iwpY4F0ElgB7R6ZfLqDV67akJiYWw79mDZfWcusfNaR2Fz247iqqm4EJGUpKHI3SU t9UrGVSb2LGr+lZGqrKdsXK3+DkiUpmoUc06IRnM6A1+ZQ7c5TGMtjNdREc22Hz1rf dQxs5+q6u2ehwf4NauPemFW6JjeZIrp5bP8roFYkUoJSyZb51q11n952Hat9+YImjH IJfRN1bUP+TNuGCe+4XoyrLuquXk9X8fMOAHZNUZSUgmfQLlc54DG9NJIcGo1+Xc+5 EgwnI0qt5ByW5dTkbaQvqioDSgUW5o9Lj7TKugfu/W6qJDqh8/4mZ2azBBsgnUblx6 S+f10ws4IsEYQ== Message-ID: Date: Fri, 20 Mar 2026 12:26:50 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] selftests/mm: Fix soft-dirty kselftest supported check To: Audra Mitchell Cc: linux-kselftest@vger.kernel.org, akpm@linux-foundation.org, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, vbabka@suse.cz, rppt@kernel.org, surenb@google.com, mhocko@suse.com, shuah@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org References: <20260218184210.206466-1-audra@redhat.com> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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 In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 1673A120010 X-Stat-Signature: oftd6bokdg1wcgow4m7bdpzmc1sokdgn X-Rspam-User: X-Rspamd-Server: rspam06 X-HE-Tag: 1774006016-908385 X-HE-Meta: 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 3/19/26 19:59, Audra Mitchell wrote: >> What about simply testing for success on a test area, wouldn't that be more reliable >> and clearer? > > Hey I tested your version of this patch and it works fine on s390 and x86_64. > I have no issue with this version at all! > > Would you prefer to push this fix since you wrote it or do you want me to push > a v2 and give you credit? The credit is all yours :) Please polish the patch description to make it clearer why the current check is problematic. -- Cheers, David