unregister_trigger(9)

💅 unregister_trigger(9) — like, the *un*register one, bestie

okay so welcome to unregister_trigger(9), part of the Kernel API Manual lineup 🎀 (yes that's the manual name, we're fancy here). This is the page where we learn how to take things back out of the event trigger system. Un-register. Un-do. The breakup era of trigger land 💔✨

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🌸 SYNOPSIS 🌸

void unregister_trigger (char *glob , struct event_trigger_data *test ,
struct trace_event_file *file );

like, three arguments, returns nothing (void), very low-maintenance of it honestly 🫶

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✨ ARGUMENTS ✨

• glob — the raw string you used to register the trigger in the first place. the original receipt, bestie 🧾
• test — trigger-specific data used to find the trigger to remove. think of it as the vibe-check you run to confirm this is the one we're dropping 🙈
• file — the trace_event_file associated with the event. the event's home address, basically 🏠

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💜 DESCRIPTION 💜

Common implementation for event trigger unregistration. that's it, that's the job 🫡

Usually used directly as the unreg method in event command implementations. so it's not even a "call this yourself" situation — it's the standard-issue, plug-it-in piece that event commands reach for. iconic outsourcing, no cap 👑

fr fr the whole point is: this is the generic unregistration path. if you're writing an event command, you probably just use it as your unreg and move on with your life 🦋

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🦋 SEE ALSO 🦋

Kernel file ./kernel/trace/trace_events_trigger.c — go read the source, it's giving main character energy 🔥

• event_triggers_call(9)
• event_triggers_post_call(9)
• event_trigger_count(9)
• event_trigger_print(9)
• event_trigger_init(9)
• event_trigger_free(9)
• clear_event_triggers(9)
• update_cond_flag(9)
• register_trigger(9)
• event_trigger_check_remove(9)
• event_trigger_empty_param(9)
• event_trigger_separate_filter(9)
• trigger_data_alloc(9)
• event_trigger_parse_num(9)
• event_trigger_set_filter(9)
• event_trigger_reset_filter(9)
• event_trigger_register(9)
• event_trigger_unregister(9)
• event_trigger_parse(9)
• set_trigger_filter(9)
• find_named_trigger(9)
• is_named_trigger(9)
• save_named_trigger(9)
• del_named_trigger(9)
• pause_named_trigger(9)
• unpause_named_trigger(9)
• set_named_trigger_data(9)

like, the whole friend group, honestly 😭💖

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and that's a wrap bestie!! this page lives in ./kernel/trace and it's stamped October 2026 — mwah, slay, periodt 💅🌈👑