srcu_notifie...ain_register(9)

💅 srcu_notifier_chain_register — from the Kernel API Manual, bestie (yes, the page whose header is srcu_notifie...ain_register(9), we're getting into it)

✨ NAME ✨

srcu_notifier_chain_register — literally the function that adds a notifier to an SRCU notifier chain 🫶

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🎀 SYNOPSIS 🎀

int srcu_notifier_chain_register (struct srcu_notifier_head *nh , struct
       notifier_block *n );

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🌸 ARGUMENTS 🌸

• nh — pointer to the head of the SRCU notifier chain, like the group chat admin of this whole situation 👑
• n — the new entry in the notifier chain, aka the new member joining the chat 🌈

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💖 DESCRIPTION 💖

okay so, this one adds a notifier to an SRCU notifier chain. that's the whole vibe. ✨

🚨 important bestie note: it must be called in process context. no cap, that's a real requirement, not a suggestion.

It returns 0 on success, and -EEXIST on error. that's it, that's the tea 💅

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🦋 SEE ALSO 🦋

• Kernel file ./kernel/notifier.c — the actual source file, go look at it iykyk
• notifier_call_chain(9)
• 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_unregister(9)
• srcu_notifier_call_chain(9)
• srcu_init_notifier_head(9)

like, the entire notifier friend group fr fr 🧚💜

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and that's the page!! 🌟 this iconic little number lives in ./kernel, dated October 2026, and it answers to the name srcu_notifie...ain_register(9) — mwah, slay, periodt 💋💅