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(p200300cbc73bfa0089092d0789096a5a.dip0.t-ipconnect.de. [2003:cb:c73b:fa00:8909:2d07:8909:6a5a]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4409d2e0414sm199915345e9.40.2025.04.29.10.22.29 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 29 Apr 2025 10:22:30 -0700 (PDT) Message-ID: Date: Tue, 29 Apr 2025 19:22:29 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 1/4] mm: establish mm/vma_exec.c for shared exec/mm VMA functionality To: Lorenzo Stoakes , Andrew Morton Cc: "Liam R . Howlett" , Vlastimil Babka , Jann Horn , Pedro Falcato , Kees Cook , Alexander Viro , Christian Brauner , Jan Kara , Suren Baghdasaryan , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org References: <91f2cee8f17d65214a9d83abb7011aa15f1ea690.1745853549.git.lorenzo.stoakes@oracle.com> From: David Hildenbrand Autocrypt: addr=david@redhat.com; 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 B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzSREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT7CwZgEEwEIAEICGwMGCwkIBwMCBhUIAgkKCwQW AgMBAh4BAheAAhkBFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAl8Ox4kFCRKpKXgACgkQTd4Q 9wD/g1oHcA//a6Tj7SBNjFNM1iNhWUo1lxAja0lpSodSnB2g4FCZ4R61SBR4l/psBL73xktp rDHrx4aSpwkRP6Epu6mLvhlfjmkRG4OynJ5HG1gfv7RJJfnUdUM1z5kdS8JBrOhMJS2c/gPf wv1TGRq2XdMPnfY2o0CxRqpcLkx4vBODvJGl2mQyJF/gPepdDfcT8/PY9BJ7FL6Hrq1gnAo4 3Iv9qV0JiT2wmZciNyYQhmA1V6dyTRiQ4YAc31zOo2IM+xisPzeSHgw3ONY/XhYvfZ9r7W1l pNQdc2G+o4Di9NPFHQQhDw3YTRR1opJaTlRDzxYxzU6ZnUUBghxt9cwUWTpfCktkMZiPSDGd KgQBjnweV2jw9UOTxjb4LXqDjmSNkjDdQUOU69jGMUXgihvo4zhYcMX8F5gWdRtMR7DzW/YE BgVcyxNkMIXoY1aYj6npHYiNQesQlqjU6azjbH70/SXKM5tNRplgW8TNprMDuntdvV9wNkFs 9TyM02V5aWxFfI42+aivc4KEw69SE9KXwC7FSf5wXzuTot97N9Phj/Z3+jx443jo2NR34XgF 89cct7wJMjOF7bBefo0fPPZQuIma0Zym71cP61OP/i11ahNye6HGKfxGCOcs5wW9kRQEk8P9 M/k2wt3mt/fCQnuP/mWutNPt95w9wSsUyATLmtNrwccz63XOwU0EVcufkQEQAOfX3n0g0fZz Bgm/S2zF/kxQKCEKP8ID+Vz8sy2GpDvveBq4H2Y34XWsT1zLJdvqPI4af4ZSMxuerWjXbVWb T6d4odQIG0fKx4F8NccDqbgHeZRNajXeeJ3R7gAzvWvQNLz4piHrO/B4tf8svmRBL0ZB5P5A 2uhdwLU3NZuK22zpNn4is87BPWF8HhY0L5fafgDMOqnf4guJVJPYNPhUFzXUbPqOKOkL8ojk CXxkOFHAbjstSK5Ca3fKquY3rdX3DNo+EL7FvAiw1mUtS+5GeYE+RMnDCsVFm/C7kY8c2d0G NWkB9pJM5+mnIoFNxy7YBcldYATVeOHoY4LyaUWNnAvFYWp08dHWfZo9WCiJMuTfgtH9tc75 7QanMVdPt6fDK8UUXIBLQ2TWr/sQKE9xtFuEmoQGlE1l6bGaDnnMLcYu+Asp3kDT0w4zYGsx 5r6XQVRH4+5N6eHZiaeYtFOujp5n+pjBaQK7wUUjDilPQ5QMzIuCL4YjVoylWiBNknvQWBXS lQCWmavOT9sttGQXdPCC5ynI+1ymZC1ORZKANLnRAb0NH/UCzcsstw2TAkFnMEbo9Zu9w7Kv AxBQXWeXhJI9XQssfrf4Gusdqx8nPEpfOqCtbbwJMATbHyqLt7/oz/5deGuwxgb65pWIzufa N7eop7uh+6bezi+rugUI+w6DABEBAAHCwXwEGAEIACYCGwwWIQQb2cqtc1xMOkYN/MpN3hD3 AP+DWgUCXw7HsgUJEqkpoQAKCRBN3hD3AP+DWrrpD/4qS3dyVRxDcDHIlmguXjC1Q5tZTwNB boaBTPHSy/Nksu0eY7x6HfQJ3xajVH32Ms6t1trDQmPx2iP5+7iDsb7OKAb5eOS8h+BEBDeq 3ecsQDv0fFJOA9ag5O3LLNk+3x3q7e0uo06XMaY7UHS341ozXUUI7wC7iKfoUTv03iO9El5f XpNMx/YrIMduZ2+nd9Di7o5+KIwlb2mAB9sTNHdMrXesX8eBL6T9b+MZJk+mZuPxKNVfEQMQ a5SxUEADIPQTPNvBewdeI80yeOCrN+Zzwy/Mrx9EPeu59Y5vSJOx/z6OUImD/GhX7Xvkt3kq Er5KTrJz3++B6SH9pum9PuoE/k+nntJkNMmQpR4MCBaV/J9gIOPGodDKnjdng+mXliF3Ptu6 3oxc2RCyGzTlxyMwuc2U5Q7KtUNTdDe8T0uE+9b8BLMVQDDfJjqY0VVqSUwImzTDLX9S4g/8 kC4HRcclk8hpyhY2jKGluZO0awwTIMgVEzmTyBphDg/Gx7dZU1Xf8HFuE+UZ5UDHDTnwgv7E th6RC9+WrhDNspZ9fJjKWRbveQgUFCpe1sa77LAw+XFrKmBHXp9ZVIe90RMe2tRL06BGiRZr jPrnvUsUUsjRoRNJjKKA/REq+sAnhkNPPZ/NNMjaZ5b8Tovi8C0tmxiCHaQYqj7G2rgnT0kt WNyWQQ== Organization: Red Hat In-Reply-To: <91f2cee8f17d65214a9d83abb7011aa15f1ea690.1745853549.git.lorenzo.stoakes@oracle.com> X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: 3c6zYqhK39wk6MJn1UC8kbRxbx8YvMsvHwvC3Jf-5MY_1745947351 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 3B8AF1C000B X-Rspam-User: X-Stat-Signature: p8dgwof1zw14e33dwe33xy8sa31ebref X-HE-Tag: 1745947354-966765 X-HE-Meta: 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 m8lsJduv 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 28.04.25 17:28, Lorenzo Stoakes wrote: > There is functionality that overlaps the exec and memory mapping > subsystems. While it properly belongs in mm, it is important that exec > maintainers maintain oversight of this functionality correctly. > > We can establish both goals by adding a new mm/vma_exec.c file which > contains these 'glue' functions, and have fs/exec.c import them. > > As a part of this change, to ensure that proper oversight is achieved, add > the file to both the MEMORY MAPPING and EXEC & BINFMT API, ELF sections. > > scripts/get_maintainer.pl can correctly handle files in multiple entries > and this neatly handles the cross-over. > > Signed-off-by: Lorenzo Stoakes > --- Reviewed-by: David Hildenbrand -- Cheers, David / dhildenb