instrument_atomic_read(9)

📦 version 7.3.1, in nixpkgs unstable

💅 instrument_atomic_read(9) — like, the Kernel API Manual bestie 💖

okay so real talk, this page is called instrument_atomic_read and we're living in the Kernel API Manual section 9, k? slay. it's a kernel function, it's void, and it's about ~vibes~ instrumentation. let's go 🎀

✨ SYNOPSIS ✨

void instrument_atomic_read (const volatile void *v , size_t size );

that's it. that's the whole signature. it returns void (so like, nothing, it's giving "i don't do returns") and it takes exactly two things. no cap 🫶

🌸 ARGUMENTS 🌸

  • v — the address of the access 💫 literally just where the thing lives
  • size — the size of the access 📏 how big we're talking

🦋 DESCRIPTION 🦋

so what does it actually do? it instruments an atomic read access. that's the whole assignment, and it ate 🔥

and here's the important bit, bestie, listen up: the instrumentation should be inserted before the actual read happens ⏰ like, the order is not a vibe suggestion, it's the whole point. before. not after. periodt. 💅

👑 SEE ALSO 👑

the kernel file in question lives at ./include/linux/instrumented.h and honestly this whole friend group is iconic, go check them all out 🌈:

like, the whole instrumented.h squad 🧚✨ iykyk

and that's the page, bestie!! 💜 this little cutie came out of ./include/linux and it's dated October 2026, and yeah, the footer still says instrument_atomic_read(9) because some things never change 😭✨ mwah, go instrument something safely 🍓🎀

📦 where this page comes from