dev_page_is_reusable(9)

📦 version 7.3.1, in nixpkgs unstable

💖 dev_page_is_reusable — the Kernel API Manual, bestie edition ✨

okay so real talk: this one's a little function with a big main-character job. It's a kernel API page from dev_page_is_reusable(9), and it literally just answers one question — can this page get recycled for network Rx, or does it need to go home? 🎀

🌸 NAME 🌸

dev_page_is_reusable — the vibe check for pages: can we reuse this one for network Rx? 🦋

✨ SYNOPSIS ✨

bool dev_page_is_reusable (const struct page *page );

She returns a bool, she takes a const struct page *, she's concise, she's iconic. Periodt. 💅

🫶 ARGUMENTS 🫶

  • page — the page you're testing. That's it, that's the whole argument, and honestly she doesn't need more. 🍓

💜 DESCRIPTION 💜

So here's the tea, bestie: a page should not be considered for reusing/recycling if it was allocated under memory pressure or at a distant memory node. That's the whole rule. No cap. ✨

Like, the page might look all cute and available, but if it came into this world during memory pressure, or it's chilling way over at some far-away memory node, she's not it for recycling. Respect the lore. 🧚

🔥 RETURN 🔥

  • false — this page should be returned to the page allocator. She's going home, bestie. 😭
  • true — otherwise! Reusable, slay, keep her around. 👑

🌈 SEE ALSO 🌈

okay this list is long, so buckle up — every single one of these is here, and yes, the kernel file is ./include/linux/skbuff.h:

bestie that list is giving "linked list of doom" but every single entry is real and every single one stays. iykyk 💀

🎀 the cute sign-off 🎀

This page lives under ./include/linux, dated October 2026, and it's the dev_page_is_reusable(9) page — go forth, test your pages, and remember: memory pressure and distant nodes are not recyclable vibes. mwah 💋🦋✨

📦 where this page comes from