rcu_barrier_tasks_trace(9)

✨ NAME ✨

okay so bestie, this is the Kernel API Manual page for rcu_barrier_tasks_trace(9) — it’s literally the function that waits for in-flight call_rcu_tasks_trace() callbacks. 💖

🦋 SYNOPSIS 🦋

void rcu_barrier_tasks_trace (void );

🎀 ARGUMENTS 🎀

• void — no arguments. zero, zilch, none, the void is voiding. 🫶

💅 DESCRIPTION 💅

quick heads-up, bestie: rcu_barrier_tasks_trace is not obligated to actually wait — for example, if there are no pending callbacks, it doesn’t have to block around waiting for them. so don’t assume it always waits, okay? 👑

🚨 caveat: “not obligated to actually wait” is the whole vibe here — the no-pending-callbacks case is explicitly called out. no cap.

🌈 SEE ALSO 🌈

• Kernel file ./include/linux/rcupdate_trace.h
• rcu_read_lock_tasks_trace(9)
• rcu_read_unlock_tasks_trace(9)
• rcu_read_lock_trace(9)
• rcu_read_unlock_trace(9)
• call_rcu_tasks_trace(9)
• synchronize_rcu_tasks_trace(9)
• rcu_tasks_trace_expedite_current(9)

okay bye bestie 🫶 — this one’s from the Kernel API Manual, sourced from ./include/linux, dated October 2026. slay. 💅✨