ww_mutex_is_locked(9)

✨ ww_mutex_is_locked(9) ✨

okay so bestie, welcome to the Kernel API Manual 💖 this one is a lil baby page, it's literally just one question and one answer, and honestly? iconic. it's giving "short and sweet, knows exactly what it is."

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🌸 NAME 🌸

ww_mutex_is_locked — is the w/w mutex locked 👀

like, that's it. that's the whole vibe. you're checking if the thing is locked.

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🦋 SYNOPSIS 🦋

bool ww_mutex_is_locked (struct ww_mutex *lock );

that's the whole signature, no cap. returns a bool, takes a pointer to a struct ww_mutex named lock, and yes the spacing is exactly like that so copy it character for character, mwah 💅

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🎀 ARGUMENTS 🎀

• lock — the mutex to be queried 🫶 like, this is the actual w/w mutex you're asking the question about. no mutex, no answer, iykyk.

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🌈 DESCRIPTION 🌈

okay so here's the whole deal, and it's genuinely so simple it's sending me 😭

Returns 1 if the mutex is locked, 0 if unlocked.

that's it!! that's the function!! it's a vibe check for your w/w mutex. locked? 1. unlocked? 0. no middle ground, no maybe, no "it's complicated" — just a clean lil boolean and honestly we love that for us 💜

heads up bestie: this is a query, not a lock. it just tells you the state, it doesn't do anything to the mutex. read the room, don't touch the vibe 💀

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⭐ SEE ALSO ⭐

go read these next, bestie, they're the whole friend group 🧚 the kernel file lives at ./include/linux/ww_mutex.h and here's the squad:

• ww_mutex_init(9)
• 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)

all of them, in that order, no skips 🔥

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and that's the page!! slay 💖✨

cute lil sign-off: this one's from the ./include/linux directory, dated October 2026, and it's ww_mutex_is_locked(9) saying bye bestie, go check your locks responsibly 👑🌸