irq_enter_rcu(9)

💖 irq_enter_rcu(9) 💖

Okay so this page is coming at you from the Kernel API Manual, and it's serving one very specific job: entering an interrupt context with RCU watching. That's the whole vibe. ✨

🌸 NAME 🌸

irq_enter_rcu — enter an interrupt context with RCU watching. Yup, that's the headline, and it ate. 💅

🦋 SYNOPSIS 🦋

void irq_enter_rcu (void );

🎀 ARGUMENTS 🎀

• void — no arguments. Zero. None. It literally does not want anything passed in, bestie. 🙈

🔥 SEE ALSO 🔥

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

The kernel file on deck is ./kernel/softirq.c, and those related refs are right there in the list above. Go peek at them when you're done here. 👑

Source/version: ./kernel. Date: October 2026. Bye bestie — go enter that interrupt context with RCU watching, and slay 🫶✨