raw_atomic_..._inc_relaxed(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 NAME 🌸

okay so this is the Kernel API Manual page for raw_atomic_..._inc_relaxed(9), and the actual main character is raw_atomic_long_fetch_inc_relaxed — atomic increment with relaxed ordering. 💅✨

🦋 SYNOPSIS 🦋

the signature is literally:

long raw_atomic_long_fetch_inc_relaxed (atomic_long_t *v );

🎀 ARGUMENTS 🎀

  • v — pointer to atomic_long_t. that's the whole argument list, bestie 🫶

💖 DESCRIPTION 💖

Atomically updates v to (v + 1) with relaxed ordering. so yes, it bumps the value by one in one atomic little moment, and the ordering vibe is relaxed. 😌✨

Safe to use in noinstr code; prefer atomic_long_fetch_inc_relaxed elsewhere. that's the caveat, no cap — noinstr is the safe zone, everywhere else you should be reaching for atomic_long_fetch_inc_relaxed. 🫡💜

⭐ RETURN ⭐

The original value of v — so you get the value from before the increment, not the new one. periodt. 💅🔥

🌈 SEE ALSO 🌈

the whole atomic-long extended universe is here, no skips, no cap — and the kernel file is ./include/linux/atomic/atomic-long.h:

byeee 🫶✨ signing off with the footer deets: source/version ./include/linux/atomic, date October 2026, and page tag raw_atomic_..._inc_relaxed(9). 🎀💜

📦 where this page comes from