atomic_inc_return_relaxed(9)

📦 version 7.3.1, in nixpkgs unstable

✨ atomic_inc_return_relaxed ✨

okay so bestie, this one lives in the Kernel API Manual and it's genuinely such a vibe — an atomic increment that gives you the new value back, with relaxed ordering. let's get into it 💅

🎀 NAME 🎀

atomic_inc_return_relaxed — atomic increment, but make it relaxed ordering ✨

🦋 SYNOPSIS 🦋

int atomic_inc_return_relaxed (atomic_t *v );

🌸 ARGUMENTS 🌸

  • v — pointer to atomic_t. yes that's it. one (1) whole argument, we love a low-maintenance icon 🫶

💖 DESCRIPTION 💖

So basically it atomically updates v to (v + 1) with relaxed ordering. atomic meaning nobody can catch it mid-update, relaxed meaning it's not out here enforcing any extra ordering rules. chill but correct, yk? 😌

⚠️ okay important one, no cap: this is unsafe to use in noinstr code. if you're in noinstr land, use raw_atomic_inc_return_relaxed there instead. literally do not mix these up 💀

👑 RETURN 👑

The updated value of v. so you get the new number back, not the old one — main character behavior honestly 🔥

🌈 SEE ALSO 🌈

the full friend group, in the kernel file ./include/linux/atomic/atomic-instrumented.h — and bestie there are so many of them, but we're listing every single one because we don't do half-finished 🫶

the atomic_* girlies:

the atomic64_* besties:

the atomic_long_* crew:

and that's the whole page, bestie 💜

this little icon comes to you straight out of the kernel file ./include/linux/atomic, dated October 2026 — like, an actual time traveler 🦋 anyway ily, go increment something atomically (relaxedly) 🎀✨

📦 where this page comes from