mempool_free_bulk(9)

📦 version 7.3.1, in nixpkgs unstable

💅 mempool_free_bulk 💅

okay bestie, so this one is from the Kernel API Manual and it's literally the "give stuff back" twin of mempool_alloc_bulk. no cap, it's a vibe.

✨ NAME ✨

mempool_free_bulk — return elements to a mempool 🫶

🌸 SYNOPSIS 🌸

unsigned int mempool_free_bulk (struct mempool *pool , void **elems ,
       unsigned int count );

🎀 ARGUMENTS 🎀

  • pool — pointer to the memory pool 💖 like, the actual pool we're feeding
  • elems — elements to return 📦 the goodies going home
  • count — number of elements to return 🔢 how many of them, exactly

🦋 DESCRIPTION 🦋

so here's the tea ☕ — this function returns a number of elements from the start of elem to pool if pool needs replenishing, and it sets their slots in elem to NULL. icon energy, truly.

the other elements? they just stay chillin' in elem. left behind. untouched. not me abandoning them 😭 (jk, that's the whole point).

lowkey important: the transfer only happens if pool actually needs replenishing. no fake generosity here 💅

⭐ RETURN ⭐

it hands you back the number of elements transferred to pool 👑

and here's the slay detail: elements are always transferred from the beginning of elem, so the return value can be used as an offset into elem for the freeing the remaining elements in the caller. it's giving "built-in bookmark" 🔖 fr fr.

🌈 SEE ALSO 🌈

kernel file ./mm/mempool.c 💀 (yes, really, that's the file)

and that's the whole thing, bestie 💜 this page lives in ./mm and it's dated October 2026 — so yeah, she's from the future, main character energy only 👑✨🎀

📦 where this page comes from