free_bootmem_cpumask_var(9)

💖 free_bootmem_cpumask_var(9) 💖

okay bestie, so we're in the Kernel API Manual today and the star of the show is free_bootmem_cpumask_var — yes that's a whole mouthful, iykyk, but it's literally just the cleanup girlie for alloc_bootmem_cpumask_var. she gives back what her sister took. iconic behaviour honestly 🎀

---

✨ NAME ✨

free_bootmem_cpumask_var — frees the result of alloc_bootmem_cpumask_var 🦋

like, you allocated it in bootmem, now you're done, so you free it. balanced. symmetrical. main character energy fr fr 💅

---

🌸 SYNOPSIS 🌸

void free_bootmem_cpumask_var (cpumask_var_t mask );

that's it. one function, one argument, no drama ✨

---

💜 ARGUMENTS 💜

• mask — the cpumask you're freeing 🫶 literally the cpumask to free, that's the whole vibe

---

🦋 SEE ALSO 🦋

so if you wanna go down the rabbit hole (and honestly? you should, it's giving lore), check these out 👑

• Kernel file ./lib/cpumask.c — the source file this all lives in, go read it, it's right there 📖
• alloc_cpumask_var_node(9)
• alloc_bootmem_cpumask_var(9) — the alloc counterpart, the origin story, the prequel 🌈
• free_cpumask_var(9)
• cpumask_local_spread(9)
• cpumask_any_and_distribute(9)
• cpumask_any_distribute(9)

no cap, that's the whole list. every single one. I would never gatekeep a SEE ALSO from you 💀

---

and that's the page!! 🎀 from the ./lib corner of the tree, October 2026 edition — slay, bye, go free your cpumasks responsibly bestie 💖✨🍓