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b=U9l6uz2yNakdSuy2bAOFywFnasaDqMo7M7iuS2ZuOFlmA7iXFxZ3HQOrSDdiCiPmS DwfZn50H/wewrGGL7Z2bzprqHQj+l27pinMzT1CPgCbQ4CnjLVRLyKYaYjcHn0v7Ok WkfIne7vSOcevZKRNXci5De3LGHv8skOXI9AKZK6BZYlDejlluJryTC/AJT0d3GuNS c3RCMXn7lhFrx9IznJ6g21XHECoccaF0X411VpnLhGBngMvbMr8ai+VYSxVCMXaLk7 XbFTA0jSaYqGWo1xJv18F6NdQl03lqWARNJAaIT5H9k4QwvtTS+bFtrma20VRVWdwT 1iv6xlzBULprg== Message-ID: <7efaff54-3f19-4c0c-a8c9-fcbacb1aa4e2@kernel.org> Date: Mon, 14 Sep 2026 15:12:31 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/3] md: Use folio_alloc_buffers() To: "Matthew Wilcox (Oracle)" , Zi Yan Cc: linux-raid@vger.kernel.org, linux-mm@kvack.org References: <20260913-remove-pg_private-v4-0-848550f7574e@nvidia.com> <20260914041830.2072626-1-willy@infradead.org> 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: <20260914041830.2072626-1-willy@infradead.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: F4113140007 X-Stat-Signature: 7ay8qzdyxdzac7d47bbbnst1qmogrwru X-Rspam-User: X-HE-Tag: 1789391556-947456 X-HE-Meta: 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 94qWXxJK XxdifdhBUh9/U+ejtvGldOtf11+uJh4DL93DhzqSBRDE2UMdcIJkYJjahiqBDP8VGhSKvo8KqcPH6GhUjFB85yG8uJEiH9KxPgLmwPPPnxc+gq5tnHJKjrbGvYgmJVPLprYKBmWUDDJgJkDTrzDp7XOsRZ96+635QoOVw2Jj80l1DQ0OOE/1aWMCGwCSrR7PghhOpmGpZIBDnpUQ8JGavw/r6H8U1flbNIZHoVeN4XTeuyneAUY2BGv6xcElEQkCqSTCy7XW0rBUntDcWp6iXPiI9l2UoajnlLv3L6Zp2Wh496v6E2Z1O5qEgVQ== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 9/14/26 06:18, Matthew Wilcox (Oracle) wrote: > Remove the last user of alloc_page_buffers(). This isn't _great_, You should tell us "why" this isn't great. Because we're allocating folios although these things are not actually folios? I can only speculate :) Code itself looks good. -- Cheers, David