raw_atomic_l...inc_not_zero(9)

💖 NAME 💖

okay so welcome to the Kernel API Manual, bestie — the page header goes raw_atomic_l...inc_not_zero(9), and the full function name is raw_atomic_long_inc_not_zero 🎀. Its whole thing is “atomic increment unless zero with full ordering,” and honestly? That’s a very specific slay. 💅

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✨ SYNOPSIS ✨

bool raw_atomic_long_inc_not_zero (atomic_long_t *v );

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🎀 ARGUMENTS 🎀

• v — pointer to atomic_long_t 🌸

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🦋 DESCRIPTION 🦋

If (v != 0), it atomically updates v to (v + 1) with full ordering ✨. Otherwise, v is not modified and relaxed ordering is provided.

It’s safe to use in noinstr code; prefer atomic_long_inc_not_zero elsewhere 🫶.

bestie, that noinstr part is the special little doorway — use this raw one there, and use the regular one everywhere else. no cap. 💀

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🌈 RETURN 🌈

true if v was updated, false otherwise 👑.

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👑 SEE ALSO 👑

Kernel file: ./include/linux/atomic/atomic-long.h 📁

and these besties, all together:

• raw_atomic_long_read(9)
• raw_atomic_long_read_acquire(9)
• raw_atomic_long_set(9)
• raw_atomic_long_set_release(9)
• raw_atomic_long_add(9)
• raw_atomic_long_add_return(9)
• raw_atomic_long_add_return_acquire(9)
• raw_atomic_long_add_return_release(9)
• raw_atomic_long_add_return_relaxed(9)
• raw_atomic_long_fetch_add(9)
• raw_atomic_long_fetch_add_acquire(9)
• raw_atomic_long_fetch_add_release(9)
• raw_atomic_long_fetch_add_relaxed(9)
• raw_atomic_long_sub(9)
• raw_atomic_long_sub_return(9)
• raw_atomic_long_sub_return_acquire(9)
• raw_atomic_long_sub_return_release(9)
• raw_atomic_long_sub_return_relaxed(9)
• raw_atomic_long_fetch_sub(9)
• raw_atomic_long_fetch_sub_acquire(9)
• raw_atomic_long_fetch_sub_release(9)
• raw_atomic_long_fetch_sub_relaxed(9)
• raw_atomic_long_inc(9)
• raw_atomic_long_inc_return(9)
• raw_atomic_long_inc_return_acquire(9)
• raw_atomic_long_inc_return_release(9)
• raw_atomic_long_inc_return_relaxed(9)
• raw_atomic_long_fetch_inc(9)
• raw_atomic_long_fetch_inc_acquire(9)
• raw_atomic_long_fetch_inc_release(9)
• raw_atomic_long_fetch_inc_relaxed(9)
• raw_atomic_long_dec(9)
• raw_atomic_long_dec_return(9)
• raw_atomic_long_dec_return_acquire(9)
• raw_atomic_long_dec_return_release(9)
• raw_atomic_long_dec_return_relaxed(9)
• raw_atomic_long_fetch_dec(9)
• raw_atomic_long_fetch_dec_acquire(9)
• raw_atomic_long_fetch_dec_release(9)
• raw_atomic_long_fetch_dec_relaxed(9)
• raw_atomic_long_and(9)
• raw_atomic_long_fetch_and(9)
• raw_atomic_long_fetch_and_acquire(9)
• raw_atomic_long_fetch_and_release(9)
• raw_atomic_long_fetch_and_relaxed(9)
• raw_atomic_long_andnot(9)
• raw_atomic_long_fetch_andnot(9)
• raw_atomic_long_fetch_andnot_acquire(9)
• raw_atomic_long_fetch_andnot_release(9)
• raw_atomic_long_fetch_andnot_relaxed(9)
• raw_atomic_long_or(9)
• raw_atomic_long_fetch_or(9)
• raw_atomic_long_fetch_or_acquire(9)
• raw_atomic_long_fetch_or_release(9)
• raw_atomic_long_fetch_or_relaxed(9)
• raw_atomic_long_xor(9)
• raw_atomic_long_fetch_xor(9)
• raw_atomic_long_fetch_xor_acquire(9)
• raw_atomic_long_fetch_xor_release(9)
• raw_atomic_long_fetch_xor_relaxed(9)
• raw_atomic_long_xchg(9)
• raw_atomic_long_xchg_acquire(9)
• raw_atomic_long_xchg_release(9)
• raw_atomic_long_xchg_relaxed(9)
• raw_atomic_long_cmpxchg(9)
• raw_atomic_long_cmpxchg_acquire(9)
• raw_atomic_long_cmpxchg_release(9)
• raw_atomic_long_cmpxchg_relaxed(9)
• raw_atomic_long_try_cmpxchg(9)
• raw_atomic_long_try_cmpxchg_acquire(9)
• raw_atomic_long_try_cmpxchg_release(9)
• raw_atomic_long_try_cmpxchg_relaxed(9)
• raw_atomic_long_sub_and_test(9)
• raw_atomic_long_dec_and_test(9)
• raw_atomic_long_inc_and_test(9)
• raw_atomic_long_add_negative(9)
• raw_atomic_long_add_negative_acquire(9)
• raw_atomic_long_add_negative_release(9)
• raw_atomic_long_add_negative_relaxed(9)
• raw_atomic_long_fetch_add_unless(9)
• raw_atomic_long_add_unless(9)
• raw_atomic_long_inc_unless_negative(9)
• raw_atomic_long_dec_unless_positive(9)
• raw_atomic_long_dec_if_positive(9)

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mwah 💋 the source/version spot at the bottom is ./include/linux/atomic, the date is October 2026, and the header is still out here looking like raw_atomic_l...inc_not_zero(9) 🫶 bye bestie!