On 15.11.24 16:35, Daniel Gomez wrote:
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.
Oh sorry, I completely agree. Yes, we should use that.
--
Cheers,
David / dhildenb
