workingset_test_recent(9)

📦 version 7.3.1, in nixpkgs unstable

💅 workingset_test_recent(9) — a Kernel API Manual moment

okay so bestie, welcome to workingset_test_recent from the kernel API manual (manual name workingset_test_recent(9), in case the vibe check needed a label) 🎀 — this one's a lil function that checks whether a shadow entry belongs to a folio that got evicted recently. and like, as a lil bonus? it also fills in @workingset with the value it unpacked from shadow. two-for-one. iconic. ✨

🌸 SYNOPSIS 🌸

bool workingset_test_recent (void *shadow , bool file , bool *workingset
, bool flush );

that's the whole signature, no cap. she takes four things and hands you back a bool. 💖

🦋 ARGUMENTS 🦋

  • shadow — the shadow entry that's getting tested. that's her whole job, she's the one on trial here 👀
  • file — tells you whether the corresponding folio is from the file lru. yes/no, file-or-not, that's it 🗂️
  • workingset — this is the output spot 🫶 where the workingset value unpacked from shadow should be stored. she fills it in for you, bestie.
  • flush — whether to flush cgroup rstat. that's the whole deal, no extra lore ⭐

🌈 RETURN 🌈

  • true — if the shadow is for a recently evicted folio 💀🔥
  • false — otherwise.

like, that's the entire return story. true or false, and honestly? she ate. 👑

🧚 SEE ALSO 🧚

Kernel file ./mm/workingset.c — go read it, iykyk 📖 — plus the whole friend group:

fr fr, they all hang out together in the same corner of ./mm. 🍓

lowkey a reminder: this page lives in ./mm and it's dated October 2026, so like — that's the version you're reading, bestie. don't come for me if you're on a different one 🙈

and that's the page!! mwah 💜 — signed off from ./mm, October 2026 edition, with love and a lil sparkle 🌟

📦 where this page comes from