raw_atomic_l...fetch_andnot(9)

✨ NAME ✨

okay so bestie, this is raw_atomic_long_fetch_andnot from the Kernel API Manual, and its whole NAME situation is literally: raw_atomic_long_fetch_andnot - atomic bitwise AND NOT with full ordering. No cap, that's the vibe. 💅

🦋 SYNOPSIS 🦋

long raw_atomic_long_fetch_andnot (long i , atomic_long_t *v );

That's the exact signature, character for character — don't let anyone gaslight you into changing the spaces. 😭

💅 ARGUMENTS 💅

• i — a long value. That's the arg, bestie.
• v — pointer to atomic_long_t. This is the atomic long that's getting updated.

🔥 DESCRIPTION 🔥

OK so the tea: this function atomically updates v to (v & ~i) with full ordering. It's giving atomic bitwise AND NOT, and the full ordering is fully invited to the party. ✨

It's safe to use in noinstr code; anywhere else, prefer atomic_long_fetch_andnot instead. Periodt. 💖

🚨 note bestie: the page says noinstr is safe, but outside that, atomic_long_fetch_andnot is the preferred one. I'm just quoting the kernel, not making the rules. 🫶

🎀 RETURN 🎀

It returns the original value of v — like a little before-pic of your atomic long. 🫶

🌈 SEE ALSO 🌈

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

And the whole atomic-long friend group, in order: 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_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).

That's the whole manual page, bestie. Brought to you by the Kernel API Manual, source/version ./include/linux/atomic, dated October 2026, and starring raw_atomic_l...fetch_andnot(9). Stay atomic, stay ordered, and hydrate. 💖✨🫶