raw_atomic_...ess_positive(9)

📦 version 7.3.1, in nixpkgs unstable

okay bestie, welcome to the Kernel API Manual page for raw_atomic_...ess_positive(9) — yes, that's the abbreviated title, and the actual main character is raw_atomic_long_dec_unless_positive. it's giving atomic decrement unless positive, but with full ordering energy, and we're gonna get into it 💅✨

💖 NAME 💖

  • raw_atomic_long_dec_unless_positive — atomic decrement unless positive with full ordering.

🌸 SYNOPSIS 🌸

bool raw_atomic_long_dec_unless_positive (atomic_long_t *v );

🎀 ARGUMENTS 🎀

  • v — pointer to atomic_long_t.

🦋 DESCRIPTION 🦋

okay so here's the vibe: if (v <= 0), this thing atomically updates v to (v - 1) with full ordering. if that condition is not true, v is not modified, and relaxed ordering is provided. no cap ✨

💀 technical caveat, bestie: it's safe to use in noinstr code. everywhere else, prefer atomic_long_dec_unless_positive. iykyk.

🔥 RETURN 🔥

true if v was updated, false otherwise. simple, iconic, no notes 👑

🌈 SEE ALSO 🌈

the kernel file is ./include/linux/atomic/atomic-long.h, and here's the full friend group — every single reference, no gatekeeping:

mwah 💋 this page was served from ./include/linux/atomic, dated October 2026, and it's the raw_atomic_...ess_positive(9) page. bye bestie, go be safe with your atomics 🫶🧚💜

📦 where this page comes from