raw_atomic_add(9)
π raw_atomic_add(9) π
okay bestie, welcome to your new fave page in the Kernel API Manual π β yes, the raw_atomic_add(9) one. grab a strawberry drink, we're doing atomics β¨
πΈ NAME πΈ
raw_atomic_add β atomic add, but make it relaxed ordering π
π¦ SYNOPSIS π¦
void raw_atomic_add (int i , atomic_t *v );
β¨ ARGUMENTS β¨
iβ theintvalue you're adding. literally just a number, no drama πvβ pointer toatomic_t. this is the thing getting updated, she's the main character π
π₯ DESCRIPTION π₯
So the way that this works is β it atomically updates v to (v + i) with relaxed ordering β. atomically. as in, no one can catch her mid-update, she's built different π
It's safe to use in noinstr code β that's the whole point of the raw_ version, iykyk π§.
but fr fr, preferatomic_addelsewhere π. like,raw_atomic_addis the special-occasion one, not the everyday one. save her for when you actually need her π
π«Ά RETURN π«Ά
Nothing. no return value, no crumbs, nothing to collect π
π SEE ALSO π
first up, the kernel file where this lives, because we always cite our sources bestie: ./include/linux/atomic/atomic-arch-fallback.h π
and now... the whole family. every single one. no skipping, no summarising, we list all of them because that's what icons do πβ¨
raw_atomic_read(9)raw_atomic_read_acquire(9)raw_atomic_set(9)raw_atomic_set_release(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_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)
and that's the whole roster, ate and left no crumbs π β¨
okay so this came out of ./include/linux/atomic, and the version/date stamp on it is October 2026 ποΈ β that's the vibe check, that's the receipts. love u, go add some integers atomically, mwah π«Άππ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms