atomic_long_dec(9)

📦 version 7.3.1, in nixpkgs unstable

💅 atomic_long_dec — atomic decrement with relaxed ordering

okay so this is the manual page for atomic_long_dec(9) from the Kernel API Manual and she is everything you need to know about subtracting one (1) singular unit from an atomic long ✨ bestie, let's go 🫶

🌸 NAME 🌸

atomic_long_dec — atomic decrement with relaxed ordering 💅

🎀 SYNOPSIS 🎀

void atomic_long_dec (atomic_long_t *v );

🦋 ARGUMENTS 🦋

  • v — pointer to atomic_long_t (like, the address of the thing we're about to subtract from, no cap) 🎯

🔥 DESCRIPTION 🔥

Atomically updates v to (v - 1) with relaxed ordering. that's it, that's the whole vibe 💀 one function, one job, she ate 🔥

⚠️ Unsafe to use in noinstr code — use raw_atomic_long_dec there instead, fr fr. do not test her in noinstr land, she will not survive 🙈

⭐ RETURN ⭐

Nothing. literally nothing, she returns void, no value, no drama, main character energy of an empty handoff 💜

💖 SEE ALSO 💖

the kernel file is ./include/linux/atomic/atomic-instrumented.h — that's where the family lives 🏠 and here's the whole entire group chat, everybody's here, no one got left on read:

🌈 the atomic_* girlies (int-sized)

🦋 the atomic64_* besties (64-bit, bigger, still iconic)

👑 the atomic_long_* family (our girl's home turf)

and that's the whole page bestie 🎀 source file is ./include/linux/atomic, dated October 2026 — go forth and decrement responsibly, mwah 💋✨🦋

📦 where this page comes from