raw_atomic_f..._add_relaxed(9)

🌸 NAME 🌸

raw_atomic_f..._add_relaxed(9) — Kernel API Manual 💅

okay so the function is raw_atomic_fetch_add_relaxed, and its whole vibe is atomic add with relaxed ordering ✨

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✨ SYNOPSIS ✨

bestie, the signature is literally this:

int raw_atomic_fetch_add_relaxed (int i , atomic_t *v );

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🎀 ARGUMENTS 🎀

• i — an int value to add 💖
• v — pointer to atomic_t 🫶

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🦋 DESCRIPTION 🦋

okay so what it does: it atomically updates v to (v + i) with relaxed ordering. no cap, that’s the whole move ✨

It’s safe to use in noinstr code — but elsewhere, the move is to prefer atomic_fetch_add_relaxed 💅

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💖 RETURN 💖

The original value of v — that’s the return, bestie 😌

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🌈 SEE ALSO 🌈

Kernel file: ./include/linux/atomic/atomic-arch-fallback.h — yes, that’s where this whole situation lives 🧚

and here’s the entire raw atomic extended family, no cap:

raw_atomic_read(9), raw_atomic_read_acquire(9), raw_atomic_set(9),
raw_atomic_set_release(9), raw_atomic_add(9), raw_atomic_add_return(9),
raw_atomic_add_return_acquire(9), raw_atomic_add_return_release(9),
raw_atomic_add_return_relaxed(9), raw_atomic_fetch_add(9),
raw_atomic_fetch_add_acquire(9), raw_atomic_fetch_add_release(9),
raw_atomic_sub(9), raw_atomic_sub_return(9),
raw_atomic_sub_return_acquire(9), raw_atomic_sub_return_release(9),
raw_atomic_sub_return_relaxed(9), raw_atomic_fetch_sub(9),
raw_atomic_fetch_sub_acquire(9), raw_atomic_fetch_sub_release(9),
raw_atomic_fetch_sub_relaxed(9), raw_atomic_inc(9),
raw_atomic_inc_return(9), raw_atomic_inc_return_acquire(9),
raw_atomic_inc_return_release(9), raw_atomic_inc_return_relaxed(9),
raw_atomic_fetch_inc(9), raw_atomic_fetch_inc_acquire(9),
raw_atomic_fetch_inc_release(9), raw_atomic_fetch_inc_relaxed(9),
raw_atomic_dec(9), raw_atomic_dec_return(9),
raw_atomic_dec_return_acquire(9), raw_atomic_dec_return_release(9),
raw_atomic_dec_return_relaxed(9), raw_atomic_fetch_dec(9),
raw_atomic_fetch_dec_acquire(9), raw_atomic_fetch_dec_release(9),
raw_atomic_fetch_dec_relaxed(9), raw_atomic_and(9),
raw_atomic_fetch_and(9), raw_atomic_fetch_and_acquire(9),
raw_atomic_fetch_and_release(9), raw_atomic_fetch_and_relaxed(9),
raw_atomic_andnot(9), raw_atomic_fetch_andnot(9),
raw_atomic_fetch_andnot_acquire(9), raw_atomic_fetch_andnot_release(9),
raw_atomic_fetch_andnot_relaxed(9), raw_atomic_or(9),
raw_atomic_fetch_or(9), raw_atomic_fetch_or_acquire(9),
raw_atomic_fetch_or_release(9), raw_atomic_fetch_or_relaxed(9),
raw_atomic_xor(9), raw_atomic_fetch_xor(9),
raw_atomic_fetch_xor_acquire(9), raw_atomic_fetch_xor_release(9),
raw_atomic_fetch_xor_relaxed(9), raw_atomic_xchg(9),
raw_atomic_xchg_acquire(9), raw_atomic_xchg_release(9),
raw_atomic_xchg_relaxed(9), raw_atomic_cmpxchg(9),
raw_atomic_cmpxchg_acquire(9), raw_atomic_cmpxchg_release(9),
raw_atomic_cmpxchg_relaxed(9), raw_atomic_try_cmpxchg(9),
raw_atomic_try_cmpxchg_acquire(9), raw_atomic_try_cmpxchg_release(9),
raw_atomic_try_cmpxchg_relaxed(9), raw_atomic_sub_and_test(9),
raw_atomic_dec_and_test(9), raw_atomic_inc_and_test(9),
raw_atomic_add_negative(9), raw_atomic_add_negative_acquire(9),
raw_atomic_add_negative_release(9), raw_atomic_add_negative_relaxed(9),
raw_atomic_fetch_add_unless(9), raw_atomic_add_unless(9),
raw_atomic_inc_not_zero(9), raw_atomic_inc_unless_negative(9),
raw_atomic_dec_unless_positive(9), raw_atomic_dec_if_positive(9),
raw_atomic64_read(9), raw_atomic64_read_acquire(9), raw_atomic64_set(9),
raw_atomic64_set_release(9), raw_atomic64_add(9),
raw_atomic64_add_return(9), raw_atomic64_add_return_acquire(9),
raw_atomic64_add_return_release(9), raw_atomic64_add_return_relaxed(9),
raw_atomic64_fetch_add(9), raw_atomic64_fetch_add_acquire(9),
raw_atomic64_fetch_add_release(9), raw_atomic64_fetch_add_relaxed(9),
raw_atomic64_sub(9), raw_atomic64_sub_return(9),
raw_atomic64_sub_return_acquire(9), raw_atomic64_sub_return_release(9),
raw_atomic64_sub_return_relaxed(9), raw_atomic64_fetch_sub(9),
raw_atomic64_fetch_sub_acquire(9), raw_atomic64_fetch_sub_release(9),
raw_atomic64_fetch_sub_relaxed(9), raw_atomic64_inc(9),
raw_atomic64_inc_return(9), raw_atomic64_inc_return_acquire(9),
raw_atomic64_inc_return_release(9), raw_atomic64_inc_return_relaxed(9),
raw_atomic64_fetch_inc(9), raw_atomic64_fetch_inc_acquire(9),
raw_atomic64_fetch_inc_release(9), raw_atomic64_fetch_inc_relaxed(9),
raw_atomic64_dec(9), raw_atomic64_dec_return(9),
raw_atomic64_dec_return_acquire(9), raw_atomic64_dec_return_release(9),
raw_atomic64_dec_return_relaxed(9), raw_atomic64_fetch_dec(9),
raw_atomic64_fetch_dec_acquire(9), raw_atomic64_fetch_dec_release(9),
raw_atomic64_fetch_dec_relaxed(9), raw_atomic64_and(9),
raw_atomic64_fetch_and(9), raw_atomic64_fetch_and_acquire(9),
raw_atomic64_fetch_and_release(9), raw_atomic64_fetch_and_relaxed(9),
raw_atomic64_andnot(9), raw_atomic64_fetch_andnot(9),
raw_atomic64_fetch_andnot_acquire(9),
raw_atomic64_fetch_andnot_release(9),
raw_atomic64_fetch_andnot_relaxed(9), raw_atomic64_or(9),
raw_atomic64_fetch_or(9), raw_atomic64_fetch_or_acquire(9),
raw_atomic64_fetch_or_release(9), raw_atomic64_fetch_or_relaxed(9),
raw_atomic64_xor(9), raw_atomic64_fetch_xor(9),
raw_atomic64_fetch_xor_acquire(9), raw_atomic64_fetch_xor_release(9),
raw_atomic64_fetch_xor_relaxed(9), raw_atomic64_xchg(9),
raw_atomic64_xchg_acquire(9), raw_atomic64_xchg_release(9),
raw_atomic64_xchg_relaxed(9), raw_atomic64_cmpxchg(9),
raw_atomic64_cmpxchg_acquire(9), raw_atomic64_cmpxchg_release(9),
raw_atomic64_cmpxchg_relaxed(9), raw_atomic64_try_cmpxchg(9),
raw_atomic64_try_cmpxchg_acquire(9),
raw_atomic64_try_cmpxchg_release(9),
raw_atomic64_try_cmpxchg_relaxed(9), raw_atomic64_sub_and_test(9),
raw_atomic64_dec_and_test(9), raw_atomic64_inc_and_test(9),
raw_atomic64_add_negative(9), raw_atomic64_add_negative_acquire(9),
raw_atomic64_add_negative_release(9),
raw_atomic64_add_negative_relaxed(9), raw_atomic64_fetch_add_unless(9),
raw_atomic64_add_unless(9), raw_atomic64_inc_not_zero(9),
raw_atomic64_inc_unless_negative(9),
raw_atomic64_dec_unless_positive(9), raw_atomic64_dec_if_positive(9)

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okay that’s the whole page, bestie 🫶 source/version: ./include/linux/atomic; date: October 2026; and yes, the title stays raw_atomic_f..._add_relaxed(9) — periodt 💅✨