rcu_tasks_tr...dite_current(9)

📦 version 7.3.1, in nixpkgs unstable

💅 rcu_tasks_trace_expedite_current — Kernel API Manual, bestie 💅

okay so real talk, this one is a whole mood. it's from the Kernel API Manual, the function is literally called rcu_tasks_trace_expedite_current(9) (yes the page header truncates it to rcu_tasks_tr...dite_current(9) because even manpage titles have a character limit and honestly relatable), and it does exactly one thing but it does it iconically. let's get into it 🫶

✨ NAME ✨

rcu_tasks_trace_expedite_current — expedite the current Tasks Trace RCU grace period. that's it. that's the whole job. and she ate 💅

🌸 SYNOPSIS 🌸

void rcu_tasks_trace_expedite_current (void );

no args, no drama, no return value. she just does the thing and leaves. main character energy fr fr 🎀

🦋 ARGUMENTS 🦋

  • void — no arguments. none. zero. the function said "i don't need input, i need results" and honestly? respect. 🙈

🔥 DESCRIPTION 🔥

so what she does is: she causes the current Tasks Trace RCU grace period to become expedited. like, the grace period was gonna take its sweet time and she's over here going "bestie we are LEAVING" ⭐

couple of very important receipts to keep in mind tho, no cap:

  • the grace period following the current one might also be expedited. might! not a promise. she's not making any promises about the next one, that's a future grace period's business 💀
  • if there's no current grace period, one might be created. so she may just. spawn one. iconic behavior honestly 👑
  • if the current grace period is currently sleeping, that sleep will complete before expediting will take effect. so like, let her nap, don't be rude, the expedite kicks in after the nap finishes. periodt. 😭
lowkey the theme here is "might", "might", and "will complete first" — this function is vibes-based in the sense that the kernel decides, not you. don't come for her if the next grace period isn't expedited too, she said might 💀

🌈 SEE ALSO 🌈

the kernel file in question, bestie:

  • ./include/linux/rcupdate_trace.h

and the whole friend group, all of whom you should absolutely know:

and that's the whole page, bestie 💖 this icon lives in ./include/linux, the docs are dated October 2026, and the manual calls her rcu_tasks_tr...dite_current(9) — truncated name and all. go expedite a grace period, you got this 🧚✨

📦 where this page comes from