printk_timed_ratelimit(9)

🎀 NAME 🎀

okay bestie, welcome to the Kernel API Manual page for printk_timed_ratelimit(9) — it's literally all about caller-controlled printk ratelimiting. No cap. 💖

🦋 SYNOPSIS 🦋

bool printk_timed_ratelimit (unsigned long *caller_jiffies , unsigned
       int interval_msecs );

💅 ARGUMENTS 💅

• caller_jiffies — pointer to caller's state. That's your state, the caller's state, passed in by pointer. Keep it cute. ✨
• interval_msecs — minimum interval between prints. The msecs is right there in the name, bestie — milliseconds. 🫶

💖 DESCRIPTION 💖

printk_timed_ratelimit is the little bool bestie that returns true when more than interval_msecs milliseconds have elapsed since the last time printk_timed_ratelimit returned true.

That's it. That's the whole function. It's giving rate-limit gatekeeper energy, but the caller is holding the state — hence caller-controlled. Periodt. 💅🔥

🌈 SEE ALSO 🌈

The whole printk/console group chat is here, plus the kernel file itself:

• Kernel file ./kernel/printk/printk.c
• console_list_lock(9)
• console_list_unlock(9)
• console_srcu_read_lock(9)
• console_srcu_read_unlock(9)
• console_lock_spinning_enable(9)
• console_lock_spinning_disable_and_check(9)
• console_trylock_spinning(9)
• printk_parse_prefix(9)
• add_preferred_console(9)
• match_devname_and_update_preferred_console(9)
• console_suspend_all(9)
• console_cpu_notify(9)
• console_lock(9)
• console_trylock(9)
• console_unlock(9)
• console_flush_on_panic(9)
• printk_kthreads_shutdown(9)
• console_force_preferred_locked(9)
• pr_flush(9)
• wake_up_klogd(9)
• defer_console_output(9)
• printk_trigger_flush(9)
• kmsg_dump_register(9)
• kmsg_dump_unregister(9)
• kmsg_dump_desc(9)
• kmsg_dump_get_line(9)
• kmsg_dump_get_buffer(9)
• kmsg_dump_rewind(9)
• console_try_replay_all(9)
• __printk_cpu_sync_wait(9)
• __printk_cpu_sync_try_get(9)
• __printk_cpu_sync_put(9)

Signed off from the ./kernel/printk source, dated October 2026 — stay rate-limited, bestie 💖✨💋