cpuidle_coupled_allow_idle(9)

💖 cpuidle_coupled_allow_idle(9) 💖 — a Kernel API Manual moment ✨

okay so bestie, welcome to the Kernel API Manual — this is the glow-up page for cpuidle_coupled_allow_idle(9), and it's lowkey iconic. 🎀

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✨ NAME ✨

cpuidle_coupled_allow_idle — allows cpus to enter a coupled state 💅

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🌸 SYNOPSIS 🌸

like, here's the whole signature, character for character, no edits:

void cpuidle_coupled_allow_idle (struct cpuidle_coupled *coupled );

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🎀 ARGUMENTS 🎀

• coupled — the struct coupled that contains the cpu that is changing state. That's the one you pass in, bestie — it's giving "here's the coupled struct, go off." 🦋

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🔥 DESCRIPTION 🔥

okay so this one enables coupled cpuidle on a coupled set of cpus. Literally. It's used to ensure that cpu_online_mask doesn't change while cpus are coordinating coupled idle. No cap, that's the whole job. 💖

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👑 SEE ALSO 👑

bestie, go read these next — the whole linked universe is right here:

• Kernel file ./drivers/cpuidle/coupled.c
• Coupled cpuidle states(9)
• struct cpuidle_coupled(9)
• cpuidle_coupled_parallel_barrier(9)
• cpuidle_state_is_coupled(9)
• cpuidle_coupled_state_verify(9)
• cpuidle_coupled_set_ready(9)
• cpuidle_coupled_set_not_ready(9)
• cpuidle_coupled_no_cpus_ready(9)
• cpuidle_coupled_cpus_ready(9)
• cpuidle_coupled_cpus_waiting(9)
• cpuidle_coupled_no_cpus_waiting(9)
• cpuidle_coupled_get_state(9)
• cpuidle_coupled_poke(9)
• cpuidle_coupled_poke_others(9)
• cpuidle_coupled_set_waiting(9)
• cpuidle_coupled_set_not_waiting(9)
• cpuidle_coupled_set_done(9)
• cpuidle_coupled_clear_pokes(9)
• cpuidle_enter_state_coupled(9)
• cpuidle_coupled_register_device(9)
• cpuidle_coupled_unregister_device(9)
• cpuidle_coupled_prevent_idle(9)

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xoxo bestie 🫶 this page is serving source ./drivers/cpuidle realness, dated October 2026 — periodt 💜