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AKk9j2S+qIGOJUSfsGjsYduZVLnP+ucMrvEf0qEjF2bjnokW+6oN1Q9W2hrAOo/GLcdjen/nSAPYtXVAUvBksyS3d9Bwv5gChegFY0nP5SxsVkWpq4k6CgvCZBQ== 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 Fri Nov 15, 2024 at 2:35 PM CET, David Hildenbrand wrote: > On 15.11.24 14:16, Daniel Gomez wrote: >> On Tue Nov 12, 2024 at 8:45 AM CET, Baolin Wang wrote: >>> Traditionally, tmpfs only supported PMD-sized huge folios. However nowa= days >>=20 >> Nitpick: >> We are mixing here folios/page, PMD-size huge. For anyone not aware of >> Memory Folios conversion in the kernel I think this makes it confusing. >> Tmpfs has never supported folios so, this is not true. Can we rephrase >> it? > > We had the exact same discussion when we added mTHP support to anonymous= =20 > memory. > > I suggest you read: > > https://lkml.kernel.org/r/65dbdf2a-9281-a3c3-b7e3-a79c5b60b357@redhat.com > > Folios are an implementation detail on how we manage metadata. Nobody in= =20 > user space should even have to be aware of how we manage metadata for=20 > larger chunks of memory ("huge pages") in the kernel. I read it and I can't find where the use of "PMD-size huge folios" could be a valid term. Tmpfs has never supported "folios", so I think using "PMD-size huge pages" is more appropiate.