__pm_stay_awake(9)

💖 __pm_stay_awake — a Kernel API Manual moment 💖

okay so bestie, welcome to the Kernel API Manual, page __pm_stay_awake(9). this one's short and sweet but it's literally carrying the whole power-management vibe, so pay attention 🫶

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✨ NAME ✨

__pm_stay_awake — notify the PM core of a wakeup event. that's it, that's the whole job, and it does it flawlessly 💅

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✨ SYNOPSIS ✨

void __pm_stay_awake (struct wakeup_source *ws );

look at that signature. void. no return value. no drama. just vibes ✨

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✨ ARGUMENTS ✨

• ws — the wakeup source object that's associated with whatever is out here causing the event. like, the source of the source, ykwim? 👑

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✨ DESCRIPTION ✨

so here's the tea: it is safe to call this function from interrupt context 🔥 no cap. interrupt context is famously not the place you wanna be doing anything cute or extra, but this one? totally fine there. it's giving low-maintenance, unbothered, main character energy 🌈

fr fr, "safe from interrupt context" is the whole entire description here — don't go inventing extra behaviour for it, bestie 🙈

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✨ SEE ALSO ✨

this is the part where the friend group shows up. everyone is here:

Kernel file ./drivers/base/power/wakeup.c — that's where the magic lives 🧚

• wakeup_source_create(9)
• wakeup_source_destroy(9)
• wakeup_source_add(9)
• wakeup_source_remove(9)
• wakeup_source_register(9)
• wakeup_source_unregister(9)
• wakeup_sources_read_lock(9)
• wakeup_sources_read_unlock(9)
• wakeup_sources_walk_start(9)
• wakeup_sources_walk_next(9)
• device_wakeup_attach(9)
• device_wakeup_enable(9)
• device_wakeup_attach_irq(9)
• device_wakeup_detach_irq(9)
• device_wakeup_arm_wake_irqs(9)
• device_wakeup_disarm_wake_irqs(9)
• device_wakeup_detach(9)
• device_wakeup_disable(9)
• device_set_wakeup_capable(9)
• device_set_wakeup_enable(9)
• wakeup_source_not_usable(9)
• wakeup_source_activate(9)
• wakeup_source_report_event(9)
• pm_stay_awake(9)
• wakeup_source_deactivate(9)
• __pm_relax(9)
• pm_relax(9)
• pm_wakeup_timer_fn(9)
• pm_wakeup_ws_event(9)
• pm_wakeup_dev_event(9)
• pm_wakeup_pending(9)
• pm_get_wakeup_count(9)
• pm_save_wakeup_count(9)
• pm_wakep_autosleep_enabled(9)
• print_wakeup_source_stats(9)
• wakeup_sources_stats_seq_show(9)
• bpf_wakeup_sources_read_lock(9)
• bpf_wakeup_sources_read_unlock(9)
• bpf_wakeup_sources_get_head(9)

(yes you read pm_wakep_autosleep_enabled(9) correctly — that's the name, we do not touch it, we do not "fix" it, we respect it 💀💖)

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that's the whole page, icon. short, iconic, interrupt-context-safe 🌸

⭐ sign-off: this lil beauty lives in ./drivers/base/power, dated October 2026, and it's part of the Kernel API Manual — go forth and wake things up responsibly, bestie 🎀💜