cpuidle_coup...cpus_waiting(9)

💤 cpuidle_coup...cpus_waiting(9) 💤

ok so this is a page from the Kernel API Manual and honestly? it's a little baddie. it's short, it's sweet, and it does exactly one job. let's get into it bestie 🫶

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✨ NAME ✨

cpuidle_coupled_cpus_waiting — check if all cpus in a coupled set are waiting 👀

like, the entire vibe of this function is just "hey... are we all here? is everyone in the wait loop? no cap?" 💅

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🎀 SYNOPSIS 🎀

bool cpuidle_coupled_cpus_waiting (struct cpuidle_coupled *coupled );

yes she returns a bool and yes that's iconic of her. true or false, no in-between, periodt. 🔥

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🌸 ARGUMENTS 🌸

• coupled — the struct coupled that contains the current cpu. that's it. that's the whole argument. she's lowkey a one-argument girly and we respect it 💖

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🦋 DESCRIPTION 🦋

Returns true if all cpus coupled to this target state are in the wait loop.

the way that's literally the whole description 😭 and honestly same — why be verbose when you can just be correct? so yeah: everyone coupled to this target state, chillin' in the wait loop? true. not everyone? false. main character energy is checking on your friends fr fr.

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🌈 SEE ALSO 🌈

ok buckle up bestie this list is LONG and every single one of these is coming with us, no skipping 🧚

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_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)
• cpuidle_coupled_allow_idle(9)

the whole coupled squad ate, ngl. go read all of them, iykyk 💀

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💡 friendly reminder: this function only tells you whether everyone's waiting — it doesn't make anyone wait. no extra lore, that's just what the manpage says 🫶

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that's the page!! she's from ./drivers/cpuidle (yes, the kernel file lives there too) and she's dated October 2026 ✨ thanks for reading bestie, now go check your wait loops 💜🍓