irq_affinit..._notify_work(9)

💅 NAME 💅

okay so bestie, welcome to the irq_affinity_schedule_notify_work page — genuinely one of my faves, and yes we're reading section 9 of the Kernel API Manual together, no you can't skip it 🫶

irq_affinity_schedule_notify_work — literally just Schedule work to notify about affinity change. that's the whole vibe. it queues up the work so everyone who cares finds out the affinity moved. slay 💖

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✨ SYNOPSIS ✨

void irq_affinity_schedule_notify_work (struct irq_desc *desc );

that's it. that's the whole signature. void return, one pointer, no drama 👑

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🎀 ARGUMENTS 🎀

• desc — Interrupt descriptor whose affinity changed. yes bestie, this one. it's the descriptor for the interrupt whose affinity just got re-arranged, and it's the thing getting passed along so the notify work knows what to gossip about 💅

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🦋 SEE ALSO 🦋

first up, the actual source of truth: kernel file ./kernel/irq/manage.c — go read it, it ate 🔥

and then the whole friend group, like genuinely the entire group chat:

• synchronize_hardirq(9)
• synchronize_irq(9)
• irq_can_set_affinity(9)
• irq_can_set_affinity_usr(9)
• irq_set_thread_affinity(9)
• irq_update_affinity_desc(9)
• irq_set_affinity(9)
• irq_force_affinity(9)
• irq_set_affinity_notifier(9)
• irq_set_vcpu_affinity(9)
• disable_irq_nosync(9)
• disable_irq(9)
• disable_hardirq(9)
• disable_nmi_nosync(9)
• enable_irq(9)
• enable_nmi(9)
• irq_set_irq_wake(9)
• irq_wake_thread(9)
• free_irq(9)
• request_threaded_irq(9)
• request_any_context_irq(9)
• request_nmi(9)
• irq_percpu_is_enabled(9)
• free_percpu_irq(9)
• request_percpu_irq_affinity(9)
• request_percpu_nmi(9)
• prepare_percpu_nmi(9)
• teardown_percpu_nmi(9)
• irq_get_irqchip_state(9)
• irq_set_irqchip_state(9)
• irq_has_action(9)
• irq_check_status_bit(9)

like, all of them. every single one. no cap, that's the list 🌈

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ok that's the whole page and it was lowkey short but highkey iconic — none of us are normal about IRQ affinity 💀

and for the little sign-off moment: this one lives in ./kernel/irq, it's dated October 2026, and in the footer it goes by its cute lil truncated name irq_affinit..._notify_work(9) because even manpages need a nickname 🎀✨🌸