raw_atomic64_inc(9)

📦 version 7.3.1, in nixpkgs unstable

💖 raw_atomic64_inc 💖

okay so real talk, this one's straight out of the Kernel API Manual, and it's like... the smallest little guy with the biggest job? bestie, it bumps a 64-bit atomic counter by one and does not make a whole thing of it. relaxed ordering, no drama, no extra memory-barrier theater. we love a low-maintenance icon. 💅

✨ NAME ✨

raw_atomic64_inc — atomic increment with relaxed ordering 🎀

🌸 SYNOPSIS 🌸

void raw_atomic64_inc (atomic64_t *v );

🦋 ARGUMENTS 🦋

  • v — pointer to atomic64_t. yeah. that's the whole argument list. she's got one (1) parameter and she's thriving. 🫶

🔥 DESCRIPTION 🔥

Atomically updates v to (v + 1) with relaxed ordering. so like, the increment totally happens as one atomic little moment, but nobody's out here ordering it around your other memory ops — relaxed means relaxed, no cap. 🧘‍♀️

💀 important bestie note: this one is safe to use in noinstr code. but prefer atomic64_inc elsewhere — raw_atomic64_inc is the specialist you call when you're in the no-instrumentation zone, not your everyday default. iykyk.

⭐ RETURN ⭐

Nothing. void. she returns to the void and the void is fine with it. 🕳️✨

👑 SEE ALSO 👑

okay so first things first, the source of truth lives right here in the kernel tree:

  • ./include/linux/atomic/atomic-arch-fallback.h

and now... the family reunion 😭 there are so many of them and i'm obsessed with every single one. 32-bit girlies first, then the 64-bit royalty.

🍓 the raw_atomic_* crew (32-bit)

💜 read & set

💜 add

💜 sub

💜 inc

💜 dec

💜 the bitwise girlies (and / andnot / or / xor)

💜 exchange & compare-and-swap court

💜 tests, negatives & unless-es

🌈 the raw_atomic64_* crew (64-bit — yes, our people)

🎀 read & set

🎀 add

🎀 sub

🎀 inc — and notice who's not in her own SEE ALSO list 💀 (it's this page. main character behavior)

🎀 dec

🎀 the bitwise girlies, 64-bit edition

🎀 exchange & compare-and-swap, but bigger

🎀 tests, negatives & unless-es, 64-bit flavor

🫶 friendly reminder bestie: that's the whole fam, nobody left behind. go read them, they're all (9) sections and they all ate. ✨

okay and finally, the little sign-off credits moment 🎬 this page comes to you from the kernel source path ./include/linux/atomic, dated October 2026, and it's the man page for raw_atomic64_inc(9). mwah, go increment something atomically. 🍓💜🧚

📦 where this page comes from