kstat_irqs_cpu(9)

✨ kstat_irqs_cpu(9) — Kernel API Manual ✨

Okay bestie, welcome to the kstat_irqs_cpu(9) page — it's giving tiny but important kernel API and I'm obsessed. 💅

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🌸 NAME 🌸

kstat_irqs_cpu - Get the statistics for an interrupt on a cpu

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🦋 SYNOPSIS 🦋

unsigned int kstat_irqs_cpu (unsigned int irq , int cpu );

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🎀 ARGUMENTS 🎀

• irq — The interrupt number. That's the interrupt bestie in question. 💖
• cpu — The cpu number. Yep, the cpu we're checking. ✨

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💜 DESCRIPTION 💜

Returns the sum of interrupt counts on cpu since boot for irq. Literally the total count for that interrupt on that cpu since the system booted, no cap. 🫶

⚠️ The caller must ensure that the interrupt is not removed concurrently. Like, that safety check is on the caller — don't let the interrupt get removed mid-call, bestie. 😭

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🔥 SEE ALSO 🔥

Kernel file ./kernel/irq/irqdesc.c — and then the whole iconic squad:

• irq_get_nr_irqs(9)
• irq_set_nr_irqs(9)
• generic_handle_irq(9)
• generic_handle_irq_safe(9)
• generic_handle_domain_irq(9)
• generic_handle_domain_nmi(9)
• generic_handle_demux_domain_irq(9)
• irq_free_descs(9)
• __irq_alloc_descs(9)
• irq_get_next_irq(9)
• kstat_irqs_usr(9)

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Source/version: ./kernel/irq · date: October 2026 · page: kstat_irqs_cpu(9). Stay slay, kernel bestie. 💖✨🎀