[LSF/MM/BPF TOPIC] State Of The Page

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I'd like to do another session on how the struct page dismemberment
is going and what remains to be done.  Given how widely struct page is
used, I think there will be interest from more than just MM, so I'd
suggest a plenary session.

If I were hosting this session today, topics would include:

Splitting out users:

 - slab (done!)
 - netmem (in progress)
 - hugetlb (in akpm)
 - tail pages (in akpm)
 - page tables
 - ZONE_DEVICE

Users that really should have their own types:

 - zsmalloc
 - bootmem
 - percpu
 - buddy
 - vmalloc

Converting filesystems to folios:

 - XFS (done)
 - AFS (done)
 - NFS (in progress)
 - ext4 (in progress)
 - f2fs (in progress)
 - ... others?

Unresolved challenges:

 - mapcount
 - AnonExclusive
 - Splitting anon & file folios apart
 - Removing PG_error & PG_private

This will probably all change before May.

I'd like to nominate Vishal Moola & Sidhartha Kumar as invitees based on
their work to convert various functions from pages to folios.



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