MEMFD_LUO_FOLIO_UPTODATE(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

πŸ’… MEMFD_LUO_FOLIO_UPTODATE β€” the folio is up-to-date, bestie

okay so real talk, this is a page straight out of the Kernel API Manual (memfd_luo_folio_uptodate(9), section 9, kernel API vibes only) and it's honestly short and sweet β€” a whole little flag with main character energy ✨


✨ SYNOPSIS ✨

MEMFD_LUO_FOLIO_UPTODATE

no args, no flags, no drama β€” it's just the thing itself πŸŽ€


🌸 DESCRIPTION 🌸

so an up-to-date folio is one that's been zeroed out already, periodt. shmem zeroes out folios on first use (like, first touch = instant glaze of zeros), and this flag is the little bookkeeping sticker that tracks which folios still need that zeroing treatment πŸ”₯

think of it as the "bestie, this one's already handled πŸ’…" marker. no cap.


πŸ¦‹ SEE ALSO πŸ¦‹

  • Kernel file ./include/linux/kho/abi/memfd.h β†’ memfd Live Update ABI(9)
  • MEMFD_LUO_FOLIO_DIRTY(9)
  • struct memfd_luo_folio_ser(9)
  • struct memfd_luo_ser(9)

go read those, they're iconic too πŸ‘‘


mwah, that's the whole page 🫢 β€” sourced from ./include/linux/kho/abi, dated October 2026, and yes she ate and left no crumbs πŸ’–β­

πŸ“¦ where this page comes from