raw_atomic_f..._add_acquire(9)

💖 NAME 💖

okay so bestie, this is the raw_atomic_f..._add_acquire(9) page from the Kernel API Manual ✨ — yes the truncated title is a whole mood, but the function we’re actually hyping is raw_atomic_fetch_add_acquire.

raw_atomic_fetch_add_acquire — atomic add with acquire ordering. That’s the tea 🎀

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✨ SYNOPSIS ✨

int raw_atomic_fetch_add_acquire (int i , atomic_t *v );

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🫶 ARGUMENTS 🫶

• i — an int value to add. It’s literally the number going into the add, bestie.
• v — pointer to atomic_t. The atomic thing getting updated.

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💅 DESCRIPTION 💅

Atomically updates v to (v + i) with acquire ordering. It’s giving synchronized math, no cap 💖

Safe to use in noinstr code; prefer atomic_fetch_add_acquire elsewhere. That’s the rule — don’t make it weird 😌

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🌸 RETURN 🌸

The original value of v. Yep, you get the pre-add value back — the original one, not the shiny new sum. slay 💅

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🦋 SEE ALSO 🦋

• Kernel file: ./include/linux/atomic/atomic-arch-fallback.h

and the whole atomic extended family, all listed exactly as they appear:

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_release(9), raw_atomic_fetch_add_relaxed(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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that’s the whole page, bestie 🫶 source/version: ./include/linux/atomic · date: October 2026 · manual energy: raw_atomic_f..._add_acquire(9). periodt 💅✨