dev_exception_clean(9)

💅 dev_exception_clean(9) 💅

okay so this is a page from the Kernel API Manual, and it's honestly short and sweet — the kind of function that just Does One Thing and leaves. iconic behaviour, honestly.

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✨ NAME ✨

dev_exception_clean — frees all the entries of the exception list 🧹💖

like, every single one. the whole list. gone. cleansed. periodt.

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🌸 SYNOPSIS 🌸

void dev_exception_clean (struct dev_cgroup *dev_cgroup );

returns void, so like… it gives you nothing back, and that's fine, it's not that kind of function 🫶

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🎀 ARGUMENTS 🎀

• dev_cgroup — the dev_cgroup that's holding the exception list you want cleaned 🧼✨ literally the thing with the list. that's the vibe.

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🦋 DESCRIPTION 🦋

so the one actual fact here, bestie, and it's a big one: this is called under devcgroup_mutex 🔒👑

that's it. that's the description. no cap. so if you're out here calling it without holding devcgroup_mutex, that's not the move — the function assumes you already locked things up properly. iykyk 💀

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🔥 SEE ALSO 🔥

Kernel file ./security/device_cgroup.c — aka where the magic lives — plus these absolute icons:

• devcgroup_online(9)
• match_exception(9)
• match_exception_partial(9)
• verify_new_ex(9)
• parent_allows_removal(9)
• may_allow_all(9)
• revalidate_active_exceptions(9)
• propagate_exception(9)
• devcgroup_legacy_check_permission(9)

go read them. they're the friend group to this function's main character energy 👑🌈

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mwah 💋 this little page comes to you from ./security, dated October 2026 — thanks for reading, bestie, go forth and free those exception list entries responsibly 🎀💜