wait_for_com...ion_killable(9)

📦 version 7.3.1, in nixpkgs unstable

💅 wait_for_completion_killable 💅

okay so bestie, welcome to the Kernel API Manual ✨ this one's a lil cutie from the kernel scheduler girlies — it's literally called wait_for_completion_killable, and yes the header up top gets truncated to wait_for_com...ion_killable(9) like a text message that ran out of characters 😭 but we know her full name, she's iconic.

🌸 NAME 🌸

wait_for_completion_killable — waits for completion of a task (killable) 🫶

✨ SYNOPSIS ✨

int wait_for_completion_killable (struct completion *x );

that's it, that's the whole vibe check 💅

🎀 ARGUMENTS 🎀

  • x — holds the state of this particular completion. she's the main character of this call, no cap 👑

🦋 DESCRIPTION 🦋

so like, this function waits to be signaled for completion of a specific task. that's the whole job, she waits 🧚

and here's the slay part: it can be interrupted by a kill signal 🔥 so if something goes "actually no, we're done here," she respectfully dips. not me being interruptible, couldn't be her ✨

💖 RETURN 💖

  • -ERESTARTSYS if interrupted 🛑
  • 0 if completed ✅

two outcomes, both valid, periodt 💅

🌈 SEE ALSO 🌈

all the sisters live in the kernel file ./kernel/sched/completion.c — go say hi 🫶

like a whole friend group honestly, iykyk 💜

lowkey a reminder that -ERESTARTSYS means a kill signal showed up and interrupted the wait — so handle that return value, bestie, don't just ignore her 🙈

okay that's the page!! sourced from ./kernel/sched, dated October 2026, and it's the wait_for_completion_killable(9) girl herself — ily, go wait on something killable 💖✨🎀

📦 where this page comes from