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b=ARtsPHvxb/WxPqwljPsHBbehUVrispm1PlvzAm29cTg58YO+Wc9FM1HvyM8oXCFC6 25YOkUOfftKD894jtf6ezRSIbwmwBm5dcuKDfpXpjQxnZKNT0gRNu7Ua6Q8iQDwwpo nkj09WZuhY+yodzkWMV1klCVSvvyr8cAC6UHIhQkH7XTXXrJOY/VhrEA6+NgfUxWxM zn47C+1dusRahNtR0cmHBoC+bvUgZV3LWBgMGqeiEodXJjdR5W0lbOsH6NL5+rYxz5 mpRDOoJnVUE5l7H2cNSg3BiR/jKpGifL3pXBWkPY0XhoiTZLbvxpthhRyJQ7vRyGq9 C7eqM4/+vyqpQ== Message-ID: <6f024319-5685-4ce3-b642-fd7d487c3fff@kernel.org> Date: Sat, 2 May 2026 08:37:48 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/2] userfaultfd: merge fs/userfaultfd.c into mm/userfaultfd.c To: Mike Rapoport Cc: Andrew Morton , Alexander Viro , Christian Brauner , Jan Kara , Peter Xu , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org References: <20260430113512.115938-1-rppt@kernel.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: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Stat-Signature: bntk9ugnb7depoeirwryac8aydyjkihm X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 3CBCA1C0006 X-Rspam-User: X-HE-Tag: 1777703875-876510 X-HE-Meta: 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 OMJmlQKN xLOS2Ui8NsIAiR8/mB+zVgeYZ7Z9ovLJLdotiORJ01AptePvnJgvmiaIXiTZoLj9EvjdiMkPkfrnFWzv/q2VfPGSI2CNoax790+atmr4Ryw7zubWjHEfTXTt/SVfNVuMdcsaIW+VA6s4JDKsbrDd+fbjNrYDbajlaSH/ddRgUT43ofEugjooQPRcAaDnJxtAtP6ZeYCXmLH88lwLtNZBg+IRdRA7k2kCZLpw4T7Pkczp93a0fkE4kk1ao/hXjTqShchlu Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 5/2/26 06:38, Mike Rapoport wrote: > On Fri, May 01, 2026 at 08:33:04PM +0200, David Hildenbrand (Arm) wrote: >> On 4/30/26 16:56, Mike Rapoport wrote: >>> >>> But it's in mm already. >> >> $ grep HUGETLB fs/Kconfig >> config ARCH_SUPPORTS_HUGETLBFS >> menuconfig HUGETLBFS >> depends on ARCH_SUPPORTS_HUGETLBFS >> if HUGETLBFS >> config HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON >> depends on HUGETLB_PAGE_OPTIMIZE_VMEMMAP >> endif # HUGETLBFS >> config HUGETLB_PAGE >> def_bool HUGETLBFS >> config HUGETLB_PAGE_OPTIMIZE_VMEMMAP >> def_bool HUGETLB_PAGE >> depends on ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP >> select SPARSEMEM_VMEMMAP_PREINIT if ARCH_WANT_HUGETLB_VMEMMAP_PREINIT >> config HUGETLB_PMD_PAGE_TABLE_SHARING >> def_bool HUGETLB_PAGE >> > > $ grep -c USERFAULT fs/Kconfig > 0 > > HugeTLB is another story. Oh my, what did my brain mess up there. Sorry, please move along, nothing to see here :) -- Cheers, David