atomic_fetch_inc(9)
🌸 atomic_fetch_inc — atomic increment with full ordering 💅
okay bestie, so this is page atomic_fetch_inc(9) from the Kernel API Manual, and honestly? she's a whole vibe. let's get into it ✨
🎀 NAME
atomic_fetch_inc — atomic increment with full ordering. that's it, that's the girl. 💖
✨ SYNOPSIS
int atomic_fetch_inc (atomic_t *v );🦋 ARGUMENTS
v— pointer toatomic_t. just a lil pointer to the thing you wanna bump. 🫶
👑 DESCRIPTION
so here's the tea: this function atomically updates v to (v + 1) — with full ordering, no cap. it's giving "I incremented it and nobody can fight me about it" energy. 🔥
⚠️ real talk though: this one is unsafe to use in noinstr code. if you're in there, use raw_atomic_fetch_inc instead. not me warning you so you don't crash on main 💀
🌈 RETURN
it returns the original value of v — like, the value before she incremented. pre-glow-up energy, iykyk. 💜
🌟 SEE ALSO
the kernel file this lives in is ./include/linux/atomic/atomic-instrumented.h — and bestie, the family tree here is enormous. like the whole group chat showed up. ✨
the atomic_* crew 💅
atomic_read(9),atomic_read_acquire(9),atomic_set(9),atomic_set_release(9)atomic_add(9),atomic_add_return(9),atomic_add_return_acquire(9),atomic_add_return_release(9),atomic_add_return_relaxed(9)atomic_fetch_add(9),atomic_fetch_add_acquire(9),atomic_fetch_add_release(9),atomic_fetch_add_relaxed(9)atomic_sub(9),atomic_sub_return(9),atomic_sub_return_acquire(9),atomic_sub_return_release(9),atomic_sub_return_relaxed(9)atomic_fetch_sub(9),atomic_fetch_sub_acquire(9),atomic_fetch_sub_release(9),atomic_fetch_sub_relaxed(9)atomic_inc(9),atomic_inc_return(9),atomic_inc_return_acquire(9),atomic_inc_return_release(9),atomic_inc_return_relaxed(9)atomic_fetch_inc_acquire(9),atomic_fetch_inc_release(9),atomic_fetch_inc_relaxed(9)atomic_dec(9),atomic_dec_return(9),atomic_dec_return_acquire(9),atomic_dec_return_release(9),atomic_dec_return_relaxed(9)atomic_fetch_dec(9),atomic_fetch_dec_acquire(9),atomic_fetch_dec_release(9),atomic_fetch_dec_relaxed(9)atomic_and(9),atomic_fetch_and(9),atomic_fetch_and_acquire(9),atomic_fetch_and_release(9),atomic_fetch_and_relaxed(9)atomic_andnot(9),atomic_fetch_andnot(9),atomic_fetch_andnot_acquire(9),atomic_fetch_andnot_release(9),atomic_fetch_andnot_relaxed(9)atomic_or(9),atomic_fetch_or(9),atomic_fetch_or_acquire(9),atomic_fetch_or_release(9),atomic_fetch_or_relaxed(9)atomic_xor(9),atomic_fetch_xor(9),atomic_fetch_xor_acquire(9),atomic_fetch_xor_release(9),atomic_fetch_xor_relaxed(9)atomic_xchg(9),atomic_xchg_acquire(9),atomic_xchg_release(9),atomic_xchg_relaxed(9)atomic_cmpxchg(9),atomic_cmpxchg_acquire(9),atomic_cmpxchg_release(9),atomic_cmpxchg_relaxed(9)atomic_try_cmpxchg(9),atomic_try_cmpxchg_acquire(9),atomic_try_cmpxchg_release(9),atomic_try_cmpxchg_relaxed(9)atomic_sub_and_test(9),atomic_dec_and_test(9),atomic_inc_and_test(9)atomic_add_negative(9),atomic_add_negative_acquire(9),atomic_add_negative_release(9),atomic_add_negative_relaxed(9)atomic_fetch_add_unless(9),atomic_add_unless(9),atomic_inc_not_zero(9),atomic_inc_unless_negative(9),atomic_dec_unless_positive(9),atomic_dec_if_positive(9)
the atomic64_* crew (she's 64-bit and thriving) 💖
atomic64_read(9),atomic64_read_acquire(9),atomic64_set(9),atomic64_set_release(9)atomic64_add(9),atomic64_add_return(9),atomic64_add_return_acquire(9),atomic64_add_return_release(9),atomic64_add_return_relaxed(9)atomic64_fetch_add(9),atomic64_fetch_add_acquire(9),atomic64_fetch_add_release(9),atomic64_fetch_add_relaxed(9)atomic64_sub(9),atomic64_sub_return(9),atomic64_sub_return_acquire(9),atomic64_sub_return_release(9),atomic64_sub_return_relaxed(9)atomic64_fetch_sub(9),atomic64_fetch_sub_acquire(9),atomic64_fetch_sub_release(9),atomic64_fetch_sub_relaxed(9)atomic64_inc(9),atomic64_inc_return(9),atomic64_inc_return_acquire(9),atomic64_inc_return_release(9),atomic64_inc_return_relaxed(9)atomic64_fetch_inc(9),atomic64_fetch_inc_acquire(9),atomic64_fetch_inc_release(9),atomic64_fetch_inc_relaxed(9)atomic64_dec(9),atomic64_dec_return(9),atomic64_dec_return_acquire(9),atomic64_dec_return_release(9),atomic64_dec_return_relaxed(9)atomic64_fetch_dec(9),atomic64_fetch_dec_acquire(9),atomic64_fetch_dec_release(9),atomic64_fetch_dec_relaxed(9)atomic64_and(9),atomic64_fetch_and(9),atomic64_fetch_and_acquire(9),atomic64_fetch_and_release(9),atomic64_fetch_and_relaxed(9)atomic64_andnot(9),atomic64_fetch_andnot(9),atomic64_fetch_andnot_acquire(9),atomic64_fetch_andnot_release(9),atomic64_fetch_andnot_relaxed(9)atomic64_or(9),atomic64_fetch_or(9),atomic64_fetch_or_acquire(9),atomic64_fetch_or_release(9),atomic64_fetch_or_relaxed(9)atomic64_xor(9),atomic64_fetch_xor(9),atomic64_fetch_xor_acquire(9),atomic64_fetch_xor_release(9),atomic64_fetch_xor_relaxed(9)atomic64_xchg(9),atomic64_xchg_acquire(9),atomic64_xchg_release(9),atomic64_xchg_relaxed(9)atomic64_cmpxchg(9),atomic64_cmpxchg_acquire(9),atomic64_cmpxchg_release(9),atomic64_cmpxchg_relaxed(9)atomic64_try_cmpxchg(9),atomic64_try_cmpxchg_acquire(9),atomic64_try_cmpxchg_release(9),atomic64_try_cmpxchg_relaxed(9)atomic64_sub_and_test(9),atomic64_dec_and_test(9),atomic64_inc_and_test(9)atomic64_add_negative(9),atomic64_add_negative_acquire(9),atomic64_add_negative_release(9),atomic64_add_negative_relaxed(9)atomic64_fetch_add_unless(9),atomic64_add_unless(9),atomic64_inc_not_zero(9),atomic64_inc_unless_negative(9),atomic64_dec_unless_positive(9),atomic64_dec_if_positive(9)
the atomic_long_* crew (long may she reign) 🌈
atomic_long_read(9),atomic_long_read_acquire(9),atomic_long_set(9),atomic_long_set_release(9)atomic_long_add(9),atomic_long_add_return(9),atomic_long_add_return_acquire(9),atomic_long_add_return_release(9),atomic_long_add_return_relaxed(9)atomic_long_fetch_add(9),atomic_long_fetch_add_acquire(9),atomic_long_fetch_add_release(9),atomic_long_fetch_add_relaxed(9)atomic_long_sub(9),atomic_long_sub_return(9),atomic_long_sub_return_acquire(9),atomic_long_sub_return_release(9),atomic_long_sub_return_relaxed(9)atomic_long_fetch_sub(9),atomic_long_fetch_sub_acquire(9),atomic_long_fetch_sub_release(9),atomic_long_fetch_sub_relaxed(9)atomic_long_inc(9),atomic_long_inc_return(9),atomic_long_inc_return_acquire(9),atomic_long_inc_return_release(9),atomic_long_inc_return_relaxed(9)atomic_long_fetch_inc(9),atomic_long_fetch_inc_acquire(9),atomic_long_fetch_inc_release(9),atomic_long_fetch_inc_relaxed(9)atomic_long_dec(9),atomic_long_dec_return(9),atomic_long_dec_return_acquire(9),atomic_long_dec_return_release(9),atomic_long_dec_return_relaxed(9)atomic_long_fetch_dec(9),atomic_long_fetch_dec_acquire(9),atomic_long_fetch_dec_release(9),atomic_long_fetch_dec_relaxed(9)atomic_long_and(9),atomic_long_fetch_and(9),atomic_long_fetch_and_acquire(9),atomic_long_fetch_and_release(9),atomic_long_fetch_and_relaxed(9)atomic_long_andnot(9),atomic_long_fetch_andnot(9),atomic_long_fetch_andnot_acquire(9),atomic_long_fetch_andnot_release(9),atomic_long_fetch_andnot_relaxed(9)atomic_long_or(9),atomic_long_fetch_or(9),atomic_long_fetch_or_acquire(9),atomic_long_fetch_or_release(9),atomic_long_fetch_or_relaxed(9)atomic_long_xor(9),atomic_long_fetch_xor(9),atomic_long_fetch_xor_acquire(9),atomic_long_fetch_xor_release(9),atomic_long_fetch_xor_relaxed(9)atomic_long_xchg(9),atomic_long_xchg_acquire(9),atomic_long_xchg_release(9),atomic_long_xchg_relaxed(9)atomic_long_cmpxchg(9),atomic_long_cmpxchg_acquire(9),atomic_long_cmpxchg_release(9),atomic_long_cmpxchg_relaxed(9)atomic_long_try_cmpxchg(9),atomic_long_try_cmpxchg_acquire(9),atomic_long_try_cmpxchg_release(9),atomic_long_try_cmpxchg_relaxed(9)atomic_long_sub_and_test(9),atomic_long_dec_and_test(9),atomic_long_inc_and_test(9)atomic_long_add_negative(9),atomic_long_add_negative_acquire(9),atomic_long_add_negative_release(9),atomic_long_add_negative_relaxed(9)atomic_long_fetch_add_unless(9),atomic_long_add_unless(9),atomic_long_inc_not_zero(9),atomic_long_inc_unless_negative(9),atomic_long_dec_unless_positive(9),atomic_long_dec_if_positive(9)
and that's the whole page, bestie 🫶 this one came from ./include/linux/atomic, dated October 2026 — so like, future icon behaviour fr fr. stay atomic, stay ordered, and don't forget raw_atomic_fetch_inc in noinstr code. mwah 💋💖✨
📦 where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- 💖 girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms