folioq_count(9)

🌸 folioq_count(9) 🌸

okay bestie, welcome to the folioq_count(9) page from the Kernel API Manual — yes, that's the manual name, folded in right here at the top like a little name tag. This one is short, sweet, and very “tiny function, important vibe check.” 💅

✨ NAME ✨

folioq_count — query the occupancy of a folio queue segment 🎀

🌟 SYNOPSIS 🌟

unsigned int folioq_count (struct folio_queue *folioq );

🫶 ARGUMENTS 🫶

• folioq — the segment to query, aka the one getting the vibe check. 💖

🔥 DESCRIPTION 🔥

Okay so this function queries the number of folios that have been added to a folio queue segment. That's the whole mission. ✨

Important lore, no cap: this count is not decreased as folios are removed from a segment. So once they've been added, the number stays put — it's not a live occupancy meter that drops when folios leave. 🫶

👑 SEE ALSO 👑

The kernel file is ./include/linux/folio_queue.h, and the whole squad is:

• folioq_init(9)
• folioq_nr_slots(9)
• folioq_full(9)
• folioq_is_marked(9)
• folioq_mark(9)
• folioq_unmark(9)
• folioq_is_marked2(9)
• folioq_mark2(9)
• folioq_unmark2(9)
• folioq_append(9)
• folioq_append_mark(9)
• folioq_folio(9)
• folioq_folio_order(9)
• folioq_folio_size(9)
• folioq_clear(9)

Sign-off: mwah 💋 this page is stamped with source/version ./include/linux and date October 2026 — iconic, periodt. 🌈