aa_prepare_ns(9)

💅 aa_prepare_ns — like, the kernel API manual bestie ✨

Okay so this is aa_prepare_ns(9) from the Kernel API Manual, and honestly? It's giving "find or make" energy and I'm obsessed 🎀

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✨ NAME ✨

aa_prepare_ns — find an existing namespace of @name, or create a new one if it's not already there 🦋

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🌸 SYNOPSIS 🌸

struct aa_ns * aa_prepare_ns (struct aa_ns *parent , const char *name );

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🫶 ARGUMENTS 🫶

• parent — the ns you're treating as the parent 👑 like, this is the mom friend of the operation
• name — the namespace you wanna find or add, and ngl it is NOT NULL — do not come for this parameter with a null, fr fr 💀

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⭐ RETURN ⭐

You get back a refcounted namespace 💖 — or, if it failed to create one, a PTR_ERR 😭 so like, always vibe check your return value before you dereference it, iykyk

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🦋 SEE ALSO 🦋

Kernel file ./security/apparmor/policy_ns.c — that's the main character source file right there, periodt 💅

• aa_ns_visible(9)
• aa_ns_name(9)
• alloc_ns(9)
• aa_free_ns(9)
• __aa_lookupn_ns(9)
• aa_lookupn_ns(9)
• __aa_find_or_create_ns(9)
• destroy_ns(9)
• __aa_remove_ns(9)
• __ns_list_release(9)
• aa_alloc_root_ns(9)

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🧚 reminder bestie: those double-underscore ones are not typos, they're the internal versions — don't go "fixing" them and then wonder why the build is crying 🔥

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and that's the whole page!! 🌈 written under ./security/apparmor, dated October 2026, in the Kernel API Manual — slay, go read aa_ns_visible(9) next 💜🎀