atomic_long_...h_or_relaxed(9)

📦 version 7.3.1, in nixpkgs unstable

✨ atomic_long_fetch_or_relaxed — atomic bitwise OR, but make it relaxed 💅

okay so real talk, this is a (9) Kernel API Manual page, and the star of the show is atomic_long_fetch_or_relaxed. She does one thing and she does it gorgeously, no cap. 🌸

✨ NAME ✨

atomic_long_fetch_or_relaxed — atomic bitwise OR with relaxed ordering 🦋

🎀 SYNOPSIS 🎀

long atomic_long_fetch_or_relaxed (long i , atomic_long_t *v );

💖 ARGUMENTS 💖

  • i — a long value. just a whole long, living her life 🫶
  • v — pointer to atomic_long_t. this is the girl we're actually updating ✨

🌈 DESCRIPTION 🌈

Atomically updates v to (v | i) with relaxed ordering. literally the OR happens, the write happens, and nobody can catch her mid-yawn — it's all one atomic moment, bestie. 🔥

⚠️ Unsafe to use in noinstr code; use raw_atomic_long_fetch_or_relaxed there instead. i'm serious, do not bring this one into noinstr territory, she does not belong there 🙈

👑 RETURN 👑

The original value of v. like, the value she had before the glow-up — you get the before picture, not the after 💅

🧚 SEE ALSO 🧚

Kernel file ./include/linux/atomic/atomic-instrumented.h

💜 the atomic_t girlies

🦋 the atomic64_t icons

🌟 the atomic_long_t main characters (yes, our girl's whole family)

🫶 that's the whole guest list, everybody showed up, the group chat is poppin' 💀✨

and that's a wrap, bestie! this page lives in ./include/linux/atomic and it's dated October 2026, and it's filed under the atomic_long_...h_or_relaxed(9) name — mwah, slay, periodt 💅🎀🌟

📦 where this page comes from