notifier_call_chain(9)

💖 NAME 💖

notifier_call_chain — Informs the registered notifiers about an event. This one’s straight outta the Kernel API Manual, bestie. 🫶

✨ SYNOPSIS ✨

int notifier_call_chain (struct notifier_block **nl , unsigned long val
       , void *v , int nr_to_call , int *nr_calls );

🎀 ARGUMENTS 🎀

• nl — pointer to head of the blocking notifier chain. Like, the entrance to the notifier group chat. 💅
• val — value passed unmodified to notifier function. It goes in exactly as-is, no edits, periodt.
• v — pointer passed unmodified to notifier function. Same deal: untouched, fr fr.
• nr_to_call — number of notifier functions to be called. If you don’t care about this parameter, the value is -1. 🦋
• nr_calls — records the number of notifications sent. If you don’t care about this field, the value is NULL. 🌸

⭐ RETURN ⭐

notifier_call_chain returns the value returned by the last notifier function called. That’s the whole vibe. 💖

👑 SEE ALSO 👑

Kernel file ./kernel/notifier.c — plus the whole notifier extended universe, lowkey iconic:

• notifier_call_chain_robust(9)
• atomic_notifier_chain_register(9)
• atomic_notifier_chain_register_unique_prio(9)
• atomic_notifier_chain_unregister(9)
• atomic_notifier_call_chain(9)
• atomic_notifier_call_chain_is_empty(9)
• blocking_notifier_chain_register(9)
• blocking_notifier_chain_register_unique_prio(9)
• blocking_notifier_chain_unregister(9)
• blocking_notifier_call_chain(9)
• raw_notifier_chain_register(9)
• raw_notifier_chain_unregister(9)
• raw_notifier_call_chain(9)
• srcu_notifier_chain_register(9)
• srcu_notifier_chain_unregister(9)
• srcu_notifier_call_chain(9)
• srcu_init_notifier_head(9)

Source/version: ./kernel · date: October 2026 · page: notifier_call_chain(9) — bye bestie, slay responsibly! 💅✨🎀