page_zpdesc(9)

💖 page_zpdesc: the page-to-zpdesc converter 💖

okay so bestie, this is the page_zpdesc(9) kernel API manual page — section 9, literally the kernel API manual — and it's all about going from the first struct page to a zpdesc. That's the vibe. 💅

✨ NAME ✨

page_zpdesc — converts from first struct page to zpdesc. No cap, that's the whole assignment. 🦋

🌸 SYNOPSIS 🌸

page_zpdesc (p );

🎀 ARGUMENTS 🎀

• p — the first page of the zpdesc (either the head of compound or a single page). That's the one you pass in, bestie. 💖

💫 DESCRIPTION 💫

So this is a temporary wrapper to convert struct page to struct zpdesc in situations where we know the page is the compound head, or a single order-0 page. It's giving "we know what this page is, let's wrap it," and we love that for us. ✨

Long-term, ideally everything would work with struct zpdesc directly or go through folio to struct zpdesc. That's the dream scenario, fr fr. 🌈

🫶 RETURN 🫶

The zpdesc which contains this page. That's what you get back — the zpdesc, containing this page. Periodt. 💜

🦋 SEE ALSO 🦋

• Kernel file: ./mm/zpdesc.h
• zpdesc_folio(9)

xoxo, source/version ./mm, dated October 2026 🌸💖✨