hrtimer_setup_on_stack(9)

💅 hrtimer_setup_on_stack — kernel API manual, bestie edition ✨

okay so this page is hrtimer_setup_on_stack(9) from the Kernel API Manual — yes the manual name is literally part of the header, we're folding it in here so it still counts 💖

✨ NAME ✨

hrtimer_setup_on_stack — initialize a timer on stack memory 🫶

🌸 SYNOPSIS 🌸

void hrtimer_setup_on_stack (struct hrtimer *timer , enum
hrtimer_restart (*function)(struct hrtimer *) , clockid_t clock_id ,
enum hrtimer_mode mode );

🎀 ARGUMENTS 🎀

• timer — the timer to be initialized, the main character of this whole operation 👑
• function — the callback function, aka the thing that actually runs when the timer goes off
• clock_id — the clock to be used ⏰
• mode — the timer mode

🦋 DESCRIPTION 🦋

So it's basically hrtimer_setup, literally the same vibe — except 💀 you must use this one if your struct hrtimer lives in stack memory. Like, that's the whole point. Stack-allocated timer? This function. Not the other one. Noted, bestie. no cap.

🌈 SEE ALSO 🌈

Kernel file ./kernel/time/hrtimer.c plus the whole friend group:

• hrtimer_update_function(9)
• hrtimer_forward(9)
• hrtimer_start_range_ns(9)
• hrtimer_start_range_ns_user(9)
• hrtimer_try_to_cancel(9)
• hrtimer_cancel(9)
• __hrtimer_get_remaining(9)
• hrtimer_get_next_event(9)
• hrtimer_next_event_without(9)
• hrtimer_setup(9)
• hrtimer_sleeper_start_expires(9)
• hrtimer_setup_sleeper_on_stack(9)

mwah 💜 that's the page — brought to you from ./kernel/time, dated October 2026, in the Kernel API Manual, and signed off with so much love it's giving unhinged 🎀✨🍓