raw_atomic_..._sub_acquire(9)

💅 raw_atomic_..._sub_acquire(9) — Kernel API Manual 💅

okay bestie, welcome to the Kernel API Manual page for raw_atomic_..._sub_acquire(9) 🦋 this one is short, iconic, and very atomic-coded ✨

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🌸 NAME 🌸

raw_atomic_long_fetch_sub_acquire — atomic subtract with acquire ordering 💥

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✨ SYNOPSIS ✨

long raw_atomic_long_fetch_sub_acquire (long i , atomic_long_t *v );

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🎀 ARGUMENTS 🎀

• i — a long value to subtract 💅
• v — pointer to atomic_long_t 👑

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🦋 DESCRIPTION 🦋

Atomically updates v to (v - i) with acquire ordering ⭐ like yes, that is literally the whole vibe.

It is safe to use in noinstr code; prefer atomic_long_fetch_sub_acquire elsewhere 🫶 no cap, that distinction matters.

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💖 RETURN 💖

The original value of v 🌸 aka the value from before the subtract happened, periodt.

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🌈 SEE ALSO 🌈

• Kernel file: ./include/linux/atomic/atomic-long.h 👀
• 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_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_not_zero(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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okay bye bestie 😭 this page came from the ./include/linux/atomic source and is dated October 2026 ✨ raw_atomic_..._sub_acquire(9) forever, mwah 💋💖