instrument_read_write(9)

🦋 instrument_read_write(9) — Kernel API Manual, bestie 🦋

okay so we're in the Kernel API Manual and this page is literally called instrument_read_write(9). Short page, big "put the instrumentation in the right spot" energy. Let's go 💅

🌸 NAME 🌸

instrument_read_write — instrument regular read-write access.

✨ SYNOPSIS ✨

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

🎀 ARGUMENTS 🎀

• v — address of access. That's the address, bestie, no cap.
• size — size of access. The size, obviously 💅.

💖 DESCRIPTION 💖

Instrument a regular write access. The instrumentation should be inserted before the actual write happens. That's the whole vibe: before the actual write happens, periodt ✨

🔥 SEE ALSO 🔥

Kernel file ./include/linux/instrumented.h — and the whole instrument crew:

• instrument_read(9)
• instrument_write(9)
• instrument_atomic_read(9)
• instrument_atomic_write(9)
• instrument_atomic_read_write(9)
• instrument_copy_to_user(9)
• instrument_copy_from_user_before(9)
• instrument_copy_from_user_after(9)
• instrument_memcpy_before(9)
• instrument_memcpy_after(9)
• instrument_get_user(9)
• instrument_put_user(9)

okay bye bestie 💖 — source/version ./include/linux, date October 2026, page instrument_read_write(9) signing off 🫶