ftrace_event...filters_open(9)

💅 ftrace_event_show_filters_open(9) — Kernel API Manual ✨

okay so this is a page from the Kernel API Manual, section 9 (the fun one, the kernel-internals one), and it's all about one tiny little function that opens a door for you. literally one job. icon behavior honestly 🎀

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✨ NAME ✨

ftrace_event_show_filters_open — the open interface for set_event_filters 🦋

like, that's it. that's the whole vibe. it opens the thing so the thing can be shown.

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🌸 SYNOPSIS 🌸

int ftrace_event_show_filters_open (struct inode *inode , struct file *file );

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💖 ARGUMENTS 💖

• inode — the inode of the file 💫 (yes queen, the actual inode, the filesystem's whole identity for it)
• file — the file being opened 🫶 (the one that's literally in the middle of being opened right now, main character energy)

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🔥 DESCRIPTION 🔥

so what this does is it connects the set_event_filters file to the sequence operations — you know, the ones you need if you're gonna iterate over the active event filters and display them. that's the assignment. that's what it ate. 💅

it's giving "matchmaker but for a file and a bunch of seq ops." no cap, it doesn't display anything itself, it just makes the connection so the displaying can happen. lowkey iconic ✨

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🦋 SEE ALSO 🦋

Kernel file ./kernel/trace/trace_events.c — go read it bestie, it's right there 🌈

• trace_event_buffer_reserve(9)
• trace_set_clr_event(9)
• trace_array_set_clr_event(9)
• t_show_filters(9)
• t_show_triggers(9)
• ftrace_event_show_triggers_open(9)
• trace_get_event_file(9)
• trace_put_event_file(9)
• event_trace_add_tracer(9)
• early_enable_events(9)

like... the whole friend group fr fr 👑

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okay that's the whole page!! every flag-less, option-less, argument-having detail is here and accounted for. shorter than your average group chat message ngl 💀

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kisses and bye bye from ./kernel/trace 🍓 — page dated October 2026, filed under ftrace_event...filters_open(9), and she served 💜🧚‍♀️