rcu_async_relax(9)

💅 rcu_async_relax(9) — a whole vibe from the Kernel API Manual ✨

okay bestie, pull up a chair, because we're about to make RCU callbacks take the chillest possible approach to life 🧚

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🌸 NAME 🌸

rcu_async_relax — makes all your future async RCU callbacks go full lazy-girl mode 😴✨

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🦋 SYNOPSIS 🦋

void rcu_async_relax (void );

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🎀 ARGUMENTS 🎀

• void — literally no arguments. nothing. zero. the void is voiding 🙈

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💖 DESCRIPTION 💖

so here's the tea ☕ — after you call this function, every future call to call_rcu is gonna be processed in a lazy fashion. not me making your callbacks procrastinate 💀

that's it. that's the whole function. she's lowkey iconic for how simple she is 👑

no cap, this is a future-calls situation — it's about what happens after you call it, not retroactively fixing anything already queued up 🫶

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🔥 SEE ALSO 🔥

• Kernel file ./kernel/rcu/update.c — the source file to go snooping in 👀
• rcu_read_lock_held_common(9)
• rcu_async_hurry(9) — the opposite energy, when you need it now 🏃‍♀️
• rcu_expedite_gp(9)
• rcu_unexpedite_gp(9)
• rcu_read_lock_held(9)
• rcu_read_lock_bh_held(9)
• wakeme_after_rcu(9)
• init_rcu_head_on_stack(9)
• destroy_rcu_head_on_stack(9)
• get_completed_synchronize_rcu(9)

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okay that's the whole page, you ate that 💅 this gem lives in ./kernel/rcu, dated October 2026, and it's brought to you by the Kernel API Manual (section 9, as always) — mwah, go forth and be lazy (in the RCU sense) 💜✨🌈