raw_atomic_..._dec_release(9)

🌸 NAME 🌸

okay bestie, welcome to the raw_atomic_..._dec_release(9) page from the Kernel API Manual. This one is all about raw_atomic_long_fetch_dec_release — atomic decrement with release ordering. It’s giving “subtract one, but make it atomic and ordered” energy. 💅

✨ SYNOPSIS ✨

long raw_atomic_long_fetch_dec_release (atomic_long_t *v );

🎀 ARGUMENTS 🎀

• v — pointer to atomic_long_t. That’s the atomic long boi getting decremented, periodt.

🦋 DESCRIPTION 🦋

Okay so this function atomically updates v to (v - 1) with release ordering. Literally “one less,” but atomic, and the release ordering is the whole vibe check. ✨

Safe to use in noinstr code; prefer atomic_long_fetch_dec_release elsewhere. So like, keep that in mind, bestie — no cap.

⭐ RETURN ⭐

The original value of v. Not the new value — the original one, before the decrement. Iconic. 💖

👑 SEE ALSO 👑

The whole extended fam, iykyk:

• 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_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_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)

mwah 💖 that’s the page, bestie. Source/version: ./include/linux/atomic; date: October 2026. Bye 🫶