wakeme_after_rcu(9)

💖 wakeme_after_rcu(9) 💖

okay so bestie, welcome to the Kernel API Manual — yes, we're literally in the kernel docs rn, get comfy 🫶 this one's a tiny little function with main character energy and honestly it's giving "small but mighty."

✨ NAME ✨

wakeme_after_rcu — callback function to awaken a task after grace period 😴➡️⏰

🌸 SYNOPSIS 🌸

void wakeme_after_rcu (struct rcu_head *head );

🎀 ARGUMENTS 🎀

• head — pointer to the rcu_head member that lives inside the rcu_synchronize structure 👑 (iykyk, it's nested, it's cute, it's exactly where it needs to be)

💅 DESCRIPTION 💅

So the whole vibe here? Awaken the corresponding task now that a grace period has elapsed ✨ that's it, that's the job. Grace period's done, time to wake the task up, no cap. 💀➡️💖

🦋 SEE ALSO 🦋

the kernel file ./kernel/rcu/update.c says hi 👋 and also pls go read these, they're all linked and honestly iconic:

• rcu_read_lock_held_common(9)
• rcu_async_hurry(9)
• rcu_async_relax(9)
• rcu_expedite_gp(9)
• rcu_unexpedite_gp(9)
• rcu_read_lock_held(9)
• rcu_read_lock_bh_held(9)
• init_rcu_head_on_stack(9)
• destroy_rcu_head_on_stack(9)
• get_completed_synchronize_rcu(9)

fr fr bestie, that's the whole page — short, sweet, and fully slaying 🌈⭐

mwah 💋 this lil section lives in ./kernel/rcu, and it's stamped October 2026 for this wakeme_after_rcu(9) moment — periodt. 🎀👑