cpufreq_this_cpu_can_update(9)

💖 cpufreq_this_cpu_can_update 💖

okay so welcome to the Kernel API Manual, bestie — this is the page for cpufreq_this_cpu_can_update, and it’s lowkey a little vibe check for cpufreq policy updates. ✨

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🦋 NAME 🦋

cpufreq_this_cpu_can_update — check if a cpufreq policy can be updated. fr fr, that’s the whole assignment. 💅

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✨ SYNOPSIS ✨

bool cpufreq_this_cpu_can_update (struct cpufreq_policy *policy );

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💅 ARGUMENTS 💅

• policy — the cpufreq policy to check. that’s the one we’re looking at, no cap. 🫶

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🔥 DESCRIPTION 🔥

It returns true if:

• the local and remote CPUs share policy,
• dvfs_possible_from_any_cpu is set in policy and the local CPU is not going offline (in which case it is not expected to run cpufreq updates any more).

so yeah — that’s the whole checklist, and the going-offline part is literally the “bestie is leaving the group chat” clause. 😭💀

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🎀 SEE ALSO 🎀

• Kernel file ./kernel/sched/cpufreq.c
• cpufreq_add_update_util_hook(9)
• cpufreq_remove_update_util_hook(9)

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mwah 💋 this iconic little page came from ./kernel/sched, dated October 2026, and it’s literally the cpufreq_this_cpu_can_update(9) page. slay. 🌈👑