atomic_long_inc(9)

💅 atomic_long_inc(9) — Kernel API Manual 🎀

okay bestie, welcome to atomic_long_inc, straight out of the Kernel API Manual ✨ this one's a lil baby function but she's iconic, let's get into it 🫶

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🌸 NAME 🌸

atomic_long_inc — atomic increment with relaxed ordering 💫

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✨ SYNOPSIS ✨

void atomic_long_inc (atomic_long_t *v );

that's it. that's the whole vibe check. 💅

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🦋 ARGUMENTS 🦋

• v — pointer to atomic_long_t 👑 like, it's the thing you're bumping up by one. that's her. that's the main character.

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💖 DESCRIPTION 💖

so the way this works is: atomically updates v to (v + 1) with relaxed ordering. no cap, it just does the +1 and it does it atomically so nobody else can squeeze in between. and the ordering is relaxed, meaning it's not out here making extra promises about memory barriers — it's chill like that 🧚

⚠️ ok so important caveat, bestie: it's unsafe to use in noinstr code. use raw_atomic_long_inc there instead. like, do not come for this function in noinstr context, it will not slay, it will break 💀

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💀 RETURN 💀

Nothing. nada. zip. zero. it does the thing and leaves, no return value, periodt ✨

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🔥 SEE ALSO 🔥

lowkey this is the longest list ever but every single one of these ate, so here's the whole crew 🫶 from the kernel file ./include/linux/atomic/atomic-instrumented.h:

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(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), 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),
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_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)

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and that's the whole page, bestie 🌈 this lil baddie lives at ./include/linux/atomic, dated October 2026, and it's filed under atomic_long_inc(9) — go forth and increment atomically, iykyk 💜🦋🌸