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 nowadays >> >> 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 > memory. > > I suggest you read: > > https://lkml.kernel.org/r/65dbdf2a-9281-a3c3-b7e3-a79c5b60b357@xxxxxxxxxx > > Folios are an implementation detail on how we manage metadata. Nobody in > user space should even have to be aware of how we manage metadata for > 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.
