irq_matrix_alloc_managed(9)

💅 irq_matrix_alloc_managed(9) 💅

okay so bestie, this page lives in the Kernel API Manual, and the function is irq_matrix_alloc_managed. It’s giving: Allocate a managed interrupt in a CPU map. That’s the whole vibe. ✨

🌸 NAME 🌸

irq_matrix_alloc_managed — Allocate a managed interrupt in a CPU map. 💖

✨ SYNOPSIS ✨

int irq_matrix_alloc_managed (struct irq_matrix *m , const struct
       cpumask *msk , unsigned int *mapped_cpu );

lowkey that’s the signature, no cap. It’s declared as int, and it takes those three args — we are not changing a single character. 🫶

🎀 ARGUMENTS 🎀

• m — matrix pointer. like, the pointer to the matrix. main character energy. 👑
• msk — Which CPUs to search in. that’s the mask, bestie. 🔍
• mapped_cpu — Pointer to store the CPU for which the irq was allocated. so the allocated CPU gets written there. 💾

🌈 SEE ALSO 🌈

go peek at the kernel file ./kernel/irq/matrix.c, and also these icons:

• irq_alloc_matrix(9)
• irq_matrix_online(9)
• irq_matrix_offline(9)
• irq_matrix_assign_system(9)
• irq_matrix_reserve_managed(9)
• irq_matrix_remove_managed(9)
• irq_matrix_assign(9)
• irq_matrix_reserve(9)
• irq_matrix_remove_reserved(9)
• irq_matrix_alloc(9)
• irq_matrix_free(9)
• irq_matrix_available(9)
• irq_matrix_reserved(9)
• irq_matrix_allocated(9)
• irq_matrix_debug_show(9)

kisses from the ./kernel/irq corner of the kernel, dated October 2026 — and yeah, this is irq_matrix_alloc_managed(9) saying bye bestie 💋🦋