STRUCT FUTEX_WAITV(9)

💖 struct futex_waitv(9) 💖

okay so bestie, this page is from the Kernel API Manual and it's literally all about struct futex_waitv — the little struct that's a waiter for vectorized wait. no cap, that's the whole vibe.

🌸 NAME 🌸

struct futex_waitv — a waiter for vectorized wait. periodt.

✨ SYNOPSIS ✨

here's the exact struct, bestie, don't touch the punctuation:

       struct futex_waitv {
           __u64 val;
           __u64 uaddr;
           __u32 flags;
           __u32 __reserved;
        };

🎀 Members 🎀

these are the members, and yes every single one matters:

• val — expected value at uaddr. like, the value you're expecting there, bestie.
• uaddr — user address to wait on. the address is the main character here.
• flags — flags for this waiter. iconic little flags.
• __reserved — reserved member to preserve data alignment. it says should be 0, so put 0.

🔥 SEE ALSO 🔥

• Kernel file ./include/uapi/linux/futex.h — go look, iykyk.

xoxo, your kernel bestie 💖 — source/version: ./include/uapi/linux; date: October 2026; page: struct futex_waitv(9). mwah 💋