irq_enter(9)

✨ irq_enter(9) ✨

okay so welcome to the Kernel API Manual, bestie 💖 this is the page for irq_enter, and it's giving “get into interrupt context, RCU update included” energy. no cap.

💖 NAME 💖

irq_enter — enter an interrupt context including RCU update. periodt. 🫶

🌸 SYNOPSIS 🌸

void irq_enter (void );

🎀 ARGUMENTS 🎀

• void — no arguments. literally none. the argument is void, and the page says no arguments, so yeah bestie, zero args, no notes. 💅

🦋 SEE ALSO 🦋

• Kernel file: ./kernel/softirq.c
• local_bh_blocked(9)
• irq_enter_rcu(9)
• irq_exit_rcu(9)
• irq_exit(9)

like bestie said, go look at those too 👑✨

mwah 💋 — this lil page is from ./kernel, October 2026, and it's irq_enter(9) 🫶🎀