smp_acquire__after_ctrl_dep(9)

💖 smp_acquire__after_ctrl_dep(9) 💖

okay so welcome to the Kernel API Manual, bestie — we are looking at smp_acquire__after_ctrl_dep, and it is literally all about providing ACQUIRE ordering after a control dependency. slay. 💅

🌸 NAME 🌸

smp_acquire__after_ctrl_dep — Provide ACQUIRE ordering after a control dependency.

✨ SYNOPSIS ✨

smp_acquire__after_ctrl_dep

the synopsis is literally just the name, no cap. 🎀

🦋 DESCRIPTION 🦋

okay so picture this: a control dependency provides LOAD->STORE order. iconic. then the additional RMB provides LOAD->LOAD order. together? they provide LOAD->{LOAD,STORE} order, aka. (load)-ACQUIRE. periodt. 💖

Architectures that do not do load speculation can have this be barrier.

highkey important vibe check: if your architecture doesn't do load speculation, it can have this be barrier. no extra drama. 🫶

🎀 SEE ALSO 🎀

• Kernel file ./include/asm-generic/barrier.h
• smp_cond_load_relaxed(9)
• smp_cond_load_acquire(9)

signing off from ./include/asm-generic, October 2026, with all the love for smp_acquire__after_ctrl_dep(9) 🌈💜