__rt_mutex_futex_unlock(9)

💖 NAME 💖

Hey bestie! Welcome to the __rt_mutex_futex_unlock(9) page from the Kernel API Manual ✨. This is the futex variant — and since futex variants do not use the fast-path, it can be simple and will not need to retry. Periodt. 💅

✨ SYNOPSIS ✨

bool __rt_mutex_futex_unlock (struct rt_mutex_base *lock , struct
       rt_wake_q_head *wqh );

🎀 ARGUMENTS 🎀

• lock — the rt_mutex to be unlocked 🔓. That's the one getting its freedom, bestie.
• wqh — the wake queue head from which to get the next lock waiter 🌸. Think of it as the little queue where the next sleepy waiter is hanging out, iykyk.

🦋 SEE ALSO 🦋

Okay so if you're going down the rt_mutex rabbit hole, here's the whole squad 🫶:

• Kernel file: ./kernel/locking/rtmutex_api.c
• rt_mutex_lock_nested(9)
• rt_mutex_lock(9)
• rt_mutex_lock_interruptible(9)
• rt_mutex_lock_killable(9)
• rt_mutex_trylock(9)
• rt_mutex_unlock(9)
• __rt_mutex_init(9)
• rt_mutex_init_proxy_locked(9)
• rt_mutex_proxy_unlock(9)
• __rt_mutex_start_proxy_lock(9)
• rt_mutex_start_proxy_lock(9)
• rt_mutex_wait_proxy_lock(9)
• rt_mutex_cleanup_proxy_lock(9)

xoxo, your kernel bestie 💅✨ — source/version: ./kernel/locking, date: October 2026, page: __rt_mutex_futex_unlock(9). No cap, that's the whole page 🫶