futex_wake_bitset(9)

💖 futex_wake_bitset(9) 💖

okay so welcome to the Kernel API Manual page for futex_wake_bitset(9), bestie — this is the one about waking tasks that are blocked on uaddr with a bitset. Slay. 🦋

✨ NAME ✨

• futex_wake_bitset — wake one or more tasks blocked on uaddr with bitset 💅

🎀 SYNOPSIS 🎀

here's the whole vibe, verbatim:

       int futex_wake_bitset (futex_t *uaddr , int nr_wake , u_int32_t bitset ,
       int opflags );

🌸 ARGUMENTS 🌸

• uaddr — the original page literally just says -- undescribed -- 😭 no cap, that's all we get.
• nr_wake — same situation, bestie: -- undescribed -- 🫠 the manpage did not spill the details.
• bitset — the bitset to compare with that used in futex_wait_bitset ✨
• opflags — also -- undescribed -- 🙈 again, that's verbatim from the page.

yes, the original really leaves these as -- undescribed --; we're not gonna invent lore 💀

🦋 SEE ALSO 🦋

• the kernel file to peek at is ./tools/testing/selftests/futex/include/futextest.h 🧚
• also linked in the SEE ALSO section:
  • futex(9)
  • futex_wait(9)
  • futex_wake(9)
  • futex_wait_bitset(9)
  • futex_lock_pi(9)
  • futex_unlock_pi(9)
  • futex_wake_op(9)
  • futex_requeue(9)
  • futex_cmp_requeue(9)
  • futex_wait_requeue_pi(9)
  • futex_cmp_requeue_pi(9)
  • futex_cmpxchg(9)
  • futex_dec(9)
  • futex_inc(9)
  • futex_set(9)

okay that's the whole page, bestie 💜 the footer says source/version ./tools/testing/selftests/fute... and date October 2026, and the manual page is futex_wake_bitset(9). bye 👑✨