hwspin_lock_free(9)

📦 version 7.3.1, in nixpkgs unstable

💅 hwspin_lock_free(9) ✨

okay bestie so this one is from the Kernel API Manual, and it's literally the cute little cleanup function for hwspinlocks — the "k, we're done here, go be free" moment 🦋

🌸 NAME 🌸

hwspin_lock_free — free a specific hwspinlock, no cap 🫶

✨ SYNOPSIS ✨

int hwspin_lock_free (struct hwspinlock *hwlock );

🎀 ARGUMENTS 🎀

  • hwlock — the specific hwspinlock to free. like, this exact one, bestie, not a vibe-adjacent one 💅

🦋 DESCRIPTION 🦋

so this function marks hwlock as free again 🔓 — it's the "you can have it back now" of the hwspinlock world.

⚠️ lowkey important: you should only call this with an hwlock that was retrieved from an earlier call to hwspin_lock_request{_specific}. don't just be out here freeing random locks, that's giving main character energy in the worst way 😭

also — it should be called from a process context (might sleep). yes, might sleep, so treat it accordingly, okay? 😴

💖 RETURN 💖

  • 0 on success 🎉
  • or an appropriate error code on failure 🙈

🔥 SEE ALSO 🔥

Kernel file ./drivers/hwspinlock/hwspinlock_core.c — go read it, it's iconic 💜

and that's the whole page, bestie 🍓 this one lives in ./drivers/hwspinlock, dated October 2026 — periodt, go free some locks responsibly 💅✨👑

📦 where this page comes from