hardlockup_d...djust_period(9)

💅 hardlockup_detector_perf_adjust_period 💅

okay so bestie, welcome to the Kernel API Manual — yes we're in the kernel docs now, put your hair up, we're doing Real Systems Programming ✨ This one's about hardlockup_detector_perf_adjust_period, and honestly? Iconic name, tiny job, huge lore.

---

✨ NAME ✨

hardlockup_detector_perf_adjust_period — literally just adjusting the event period because the current cpu frequency changed 🦋

Like no cap, that's the whole vibe. CPU frequency goes brrr differently than before, so the period needs a lil tune-up. Lowkey elegant.

---

🌸 SYNOPSIS 🌸

void hardlockup_detector_perf_adjust_period (u64 period );

That's it. That's the whole signature. A void return (nothing comes back out 😌) and one u64 coming in. Copy it exactly, don't get creative, period has a space before the paren and we respect the original, periodt 👑

---

🎀 ARGUMENTS 🎀

• period — ngl this is the target period that's gonna be set. That's the whole job description bestie, it's giving "one argument, zero drama" 🫶

---

🔥 SEE ALSO 🔥

bestie the cross-references are chef's kiss, go read these next, they're all in the kernel file ./kernel/watchdog_perf.c 💖

• watchdog_hardlockup_enable(9)
• watchdog_hardlockup_disable(9)
• hardlockup_detector_perf_stop(9)
• hardlockup_detector_perf_restart(9)
• watchdog_hardlockup_probe(9)
• hardlockup_config_perf_event(9)

💀 friendly reminder that the "see also" section is not decorative. these are your girls. go say hi.

---

and that's the page, bestie!! 🌈⭐

this lil masterpiece lives in ./kernel, and it's stamped October 2026 — so like, future-dated documentation, main character energy fr fr 🧚‍♀️💜 bookmark it, cite it, adjust those periods responsibly 😭👑

(also hardlockup_d...djust_period(9) is how the header/footer abbreviate the name — the terminal was too narrow to hold all that greatness 💅)