raw_atomic_long_sub(9)

📦 version 7.3.1, in nixpkgs unstable

💅 raw_atomic_long_sub(9) 💅

okay so you're in the Kernel API Manual bestie, and today's main character is raw_atomic_long_sub — the raw, relaxed-ordering girly who subtracts things atomically. she's lowkey iconic and you're gonna learn her. 🎀

🌸 NAME 🌸

raw_atomic_long_sub — atomic subtract with relaxed ordering ✨

🦋 SYNOPSIS 🦋

void raw_atomic_long_sub (long i , atomic_long_t *v );

💖 ARGUMENTS 💖

  • i — the long value you're subtracting. that's the amount getting taken away, periodt. 🫶
  • v — pointer to the atomic_long_t. this is the vibe you're operating on, no cap. 💅

🔥 DESCRIPTION 🔥

so like, she atomically updates v to (v - i) with relaxed ordering. literally the whole flex. 🔥

and the important bit: it's safe to use in noinstr code — that's her special talent 💫 — but prefer atomic_long_sub everywhere else. like, raw_ is for the noinstriest of occasions, iykyk. ngl don't just raw-dog your atomics for fun, bestie. 🙈

⭐ RETURN ⭐

Nothing. she gives you vibes, not values. 💀 (if you want the value back, that's a different function, bestie — go check the list below 👀)

🌈 SEE ALSO 🌈

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

the whole extended friend group, in order, no gatekeeping: 🫶

ok that's a lot of names but every single one of them ate, and they're all siblings of this function so like. show respect. 👑

that's the whole page bestie, go atomically subtract somethingresponsibly 💜

and that's a wrap from ./include/linux/atomic, dated October 2026 — catch you in the next manpage, mwah 💋✨

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