futex_parse_waitv(9)

💅 futex_parse_waitv(9) 💅

okay so this is the futex_parse_waitv(9) page from the Kernel API Manual, and it's literally giving “parse a waitv array from userspace” energy 🫶✨

✨ NAME ✨

futex_parse_waitv — parse a waitv array from userspace, bestie 💖

🌸 SYNOPSIS 🌸

       int futex_parse_waitv (struct futex_vector *futexv , struct futex_waitv
       __user *uwaitv , unsigned int nr_futexes , futex_wake_fn *wake , void
       *wake_data );

🎀 ARGUMENTS 🎀

• futexv — the kernel-side list of waiters that's getting filled in, like a little VIP section for waiters 🫶
• uwaitv — the userspace list that's getting parsed, periodt ✨
• nr_futexes — the length of futexv, aka how many futexes we're dealing with 🔢
• wake — the wake handler to call when the futex is woken, no cap 👑
• wake_data — the data for that wake handler, handing it right over 💌

💖 RETURN 💖

Error code on failure, 0 on success — so if it flops you get an error code, and if it slays you get 0 😌✨

🦋 SEE ALSO 🦋

Kernel file ./kernel/futex/syscalls.c is the spot, and you also gotta peek at sys_set_robust_list(9), sys_get_robust_list(9), and sys_futex_waitv(9) — iykyk 👑

mwah 💋 this page lives in ./kernel/futex, it's stamped October 2026, and it's literally futex_parse_waitv(9) — bye bestie 🫶🌈