ww_mutex_init(9)

💅 ww_mutex_init(9) — like, the w/w mutex glow-up page 💅

okay bestie, welcome to the Kernel API Manual, this is ww_mutex_init and she's literally the only way to set your w/w mutex up properly, no cap. let's get into it 🎀

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✨ NAME ✨

ww_mutex_init — initialize the w/w mutex 🦋

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✨ SYNOPSIS ✨

void ww_mutex_init (struct ww_mutex *lock , struct ww_class *ww_class );

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✨ ARGUMENTS ✨

• lock — the mutex you're about to initialize, bestie. this is the one getting the glow-up 💖
• ww_class — the w/w class this mutex should belong to. gotta know her people 🫶

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✨ DESCRIPTION ✨

so what this does is it initializes the w/w mutex into the unlocked state and associates it with the class you handed it. that's the whole vibe check ✨

now hear me on this one: there is no static define macro for w/w mutexes. none. zero. not a thing. so this function right here is the only way to properly initialize the w/w mutex — it's giving main character energy because there's literally no other option 💅

🚨 and ngl, it is not allowed to initialize an already locked mutex. don't do it. that's the rule, periodt 💀

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✨ SEE ALSO ✨

• Kernel file ./include/linux/ww_mutex.h 👑
• ww_acquire_init(9)
• ww_acquire_done(9)
• ww_acquire_fini(9)
• ww_mutex_lock(9)
• ww_mutex_lock_interruptible(9)
• ww_mutex_lock_slow(9)
• ww_mutex_lock_slow_interruptible(9)
• ww_mutex_is_locked(9)

go read the whole squad, iykyk 🌈

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that's the page, bestie!! this one's from ./include/linux, dated October 2026 — mwah, love that for us 💜🍓🧚