timekeeping_notify(9)

✨ timekeeping_notify(9) ✨

okay bestie, welcome to the Kernel API Manual page for timekeeping_notify(9) — manual name folded in near the top, cute and accounted for 🎀

🎀 NAME 🎀

timekeeping_notify — Install a new clock source 💖

🌸 SYNOPSIS 🌸

int timekeeping_notify (struct clocksource *clock );

🦋 ARGUMENTS 🦋

• clock — pointer to the clock source. that's the whole vibe: a pointer, to the clock source, slay 🫶

💫 DESCRIPTION 💫

okay so here's the tea: this function is called from clocksource.c after a new, better clock source has been registered. the caller holds clocksource_mutex — like, already holding it, bestie, that's the setup 😌

🔥 SEE ALSO 🔥

go bother these faves next, no cap:

• the kernel file ./kernel/time/timekeeping.c
• struct tk_fast(9)
• tk_setup_internals(9)
• update_fast_timekeeper(9)
• ktime_get_mono_fast_ns(9)
• ktime_get_raw_fast_ns(9)
• ktime_get_boot_fast_ns(9)
• ktime_get_tai_fast_ns(9)
• ktime_get_real_fast_ns(9)
• halt_fast_timekeeper(9)
• pvclock_gtod_register_notifier(9)
• pvclock_gtod_unregister_notifier(9)
• timekeeping_forward_now(9)
• ktime_get_real_ts64(9)
• ktime_mono_to_any(9)
• ktime_get_raw(9)
• ktime_get_ts64(9)
• ktime_get_seconds(9)
• ktime_get_real_seconds(9)
• __ktime_get_real_seconds(9)
• ktime_get_snapshot_id(9)
• adjust_historical_crosststamp(9)
• ktime_real_to_base_clock(9)
• get_device_system_crosststamp(9)
• timekeeping_clocksource_has_base(9)
• do_settimeofday64(9)
• __timekeeping_inject_offset(9)
• ktime_get_raw_ts64(9)
• timekeeping_valid_for_hres(9)
• timekeeping_max_deferment(9)
• read_persistent_clock64(9)
• read_persistent_wall_and_boot_offset(9)
• __timekeeping_inject_sleeptime(9)
• timekeeping_inject_sleeptime64(9)
• timekeeping_resume(9)
• update_wall_time(9)
• getboottime64(9)
• ktime_get_coarse_real_ts64_mg(9)
• ktime_get_real_ts64_mg(9)
• ktime_get_update_offsets_now(9)
• random_get_entropy_fallback(9)
• do_adjtimex(9)
• hardpps(9)
• ktime_get_aux(9)
• ktime_get_aux_ts64(9)

signing off with the source/version cuteness: this page comes from ./kernel/time, dated October 2026, and yes it's still timekeeping_notify(9) — mwah, go read some kernel time code 💋✨