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linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, fuse-devel@lists.linux.dev References: <20260917-b4-mmap-prepare-vma-flag-sanify-v3-0-4583d8a23bca@kernel.org> <20260917-b4-mmap-prepare-vma-flag-sanify-v3-31-4583d8a23bca@kernel.org> <9bbdf4e8-6984-4477-a183-f0b236047381@kernel.org> 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 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Amn41NWuvVwrMINSRaQgBkGdiyiCptyHKLLwnYfVt1JXxfgkFWZc84dGFwT/nPdPABqXuXtDNbzYOMjnUdq35ygeF6GvVcs1Cu9lK1KQ5U2TSg/a4w7k6PC07G9v5VrnLevrN6VSFClXi69K7MqUmLGTNlAAP7CbofgJJKua8K/JW9gHLOpJ+dS10cLjj4qnabWJWnT0LPVtwHVeVn0aOrMDBMFgfK17Qih7MWZTls/xYHbx86dtJUTZ5a3VoHKiBAfsaTSOQ21OleqCDlFri0jqHAzxsadxjyIJXB+BTLGyftSPAf8Gj93ZOxrzZidNYel30bRRK2kE+vnmV7ZGABbXwfiO7pT6Y= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 10/2/26 08:59, David Hildenbrand (Arm) wrote: > On 9/17/26 18:22, Lorenzo Stoakes (ARM) wrote: >> Introduce vma[_flags]_is_persistent() for the purposes of identifying >> mappings that are persistent in the sense that bytes to the mapping stay >> there, and bytes read from the mapping are the same unless changed by >> actions taken by userland. > > That's extremely confusing, sorry. We have to find a better name for that. > > Is this really all about user pages (pagecache, anon) that we would find through > the rmap? > It's also about droppable mappings AFAIKs. How many more users will we have for that function? If it's "no others" then please don't add a helper function with misleading names for it and just keep the special "dumpable" check in the new form in madvise_vma_behavior(). -- Cheers, David