tomoyo_stru...by_io_buffer(9)

💖 tomoyo_struct_used_by_io_buffer 💖

okay bestie, welcome to the Kernel API Manual — this one's a lil function from the TOMOYO security corner of the kernel, and honestly it's giving "bouncer at the club checking the guest list" energy 🫶

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✨ NAME ✨

tomoyo_struct_used_by_io_buffer — literally just checks whether a list element is being used by the users hanging out in /sys/kernel/security/tomoyo/, or not. that's it. that's the whole vibe check 💅

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🌸 SYNOPSIS 🌸

bool tomoyo_struct_used_by_io_buffer (const struct list_head *element );

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🎀 ARGUMENTS 🎀

• element — a pointer to struct list_head. yes, that exact type, no cap. it's the thing we're asking about 👀

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🦋 DESCRIPTION 🦋

so here's the tea: this function returns true if element is being used by the /sys/kernel/security/tomoyo/ users, and false if it isn't. that's the whole plot. true or false, iconic either way ✨

no hidden lore, no gotchas, no extra params. just a clean little boolean moment 💜

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👑 SEE ALSO 👑

the kernel file ./security/tomoyo/gc.c says hi, and so do all of these besties — go say hey to them too:

• tomoyo_memory_free(9)
• tomoyo_name_used_by_io_buffer(9)
• tomoyo_del_transition_control(9)
• tomoyo_del_aggregator(9)
• tomoyo_del_manager(9)
• tomoyo_del_acl(9)
• tomoyo_del_domain(9)
• tomoyo_del_condition(9)
• tomoyo_del_name(9)
• tomoyo_del_path_group(9)
• tomoyo_del_group(9)
• tomoyo_del_address_group(9)
• tomoyo_del_number_group(9)
• tomoyo_try_to_gc(9)
• tomoyo_collect_member(9)
• tomoyo_collect_acl(9)
• tomoyo_collect_entry(9)
• tomoyo_gc_thread(9)
• tomoyo_notify_gc(9)

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ngl the whole tomoyo_del_* squad is a whole friend group and this page is just the one holding the group chat together 🍓

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and that's the page!! sourced straight from ./security/tomoyo, stamped October 2026, filed under tomoyo_struct_used_by_io_buffer(9) — mwah, go read the gc code, it's lowkey fascinating 💖🧚‍♀️