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ePbG3SKi4n86aEIzgqjJRrV+qwGj+vNKqP9r6zXI08X6+qP/+vK096EOUIhkwMZgnGWhlu2vEzHTSiSXOX7xdiQ6RmChE9Edrwd6Kem2BYedRfmPfLDM8U6Q80sa9ljn1TW2nq1vZ+213Cai2NEXaEd3GYVlSvQfWk3LjALLCwoUvzaD3IAhU5PFRh42KFD2UKtATYsxEyc1ZCJPctmYgyhR0Lj2iErGHJVcLZr4K6f0/FDHjuAZs6aubkB0lWP9pmNSwwg0zqWxMNtYiuHJNJtBnDNUdOHX2dFitNNF1iWJpvl0rdhhXAVMPBGlsfszFvh0xVy5CBLVl63DrspCjmajBswDmsFW6EBw0 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 Wed Jan 22, 2025 at 9:26 AM EST, David Hildenbrand wrote: > On 22.01.25 13:40, Zi Yan wrote: >> Commit acd7ccb284b8 ("mm: shmem: add large folio support for tmpfs") >> changes huge=3Dalways to allocate THP/mTHP based on write size and >> split_huge_page_test does not write PMD size data, so file-back THP is n= ot >> created during the test. > > Just curious, why can't we write PMD size data instead, to avoid messing= =20 > with the "force" option? It also works. I used "force", because I notice that it is intended for testing. Using it might be more future proof, in case huge=3Dalways changes its semantics again in the future. --=20 Best Regards, Yan, Zi