clone_time_ns(9)

💅 clone_time_ns(9) — a page from the Kernel API Manual, bestie

okay so picture this: it's giving kernel internals, it's giving time namespaces, and honestly? it's kind of iconic. this is clone_time_ns, and yes we're gonna get into it together 🫶

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✨ NAME ✨

clone_time_ns — clone a time namespace. that's it, that's the vibe. one job, does it slay 💅

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🌸 SYNOPSIS 🌸

struct time_namespace * clone_time_ns (struct user_namespace *user_ns ,
struct time_namespace *old_ns );

look at her. two arguments, one pointer returned, main character energy fr fr ✨

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🎀 ARGUMENTS 🎀

• user_ns — the user namespace that owns the new namespace. like, this is who's gonna be responsible for it. the parent, the guardian, the one signing the permission slip 🫶
• old_ns — the namespace we're cloning. the blueprint. the original. the one we're copying 💖

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🦋 DESCRIPTION 🦋

so what actually happens? you take old_ns, you clone it, and you set the clone's refcount to 1. that's the whole thing, no cap. one fresh namespace, refcount starting at one, ready to live its life 🌈

ngl it's a short description because the function is short. lowkey efficient. we respect that 💜

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⭐ RETURN ⭐

you get the new namespace back 🎉 — or ERR_PTR. yes, ERR_PTR, the classic "something went wrong but we're encoding it in a pointer" situation. if it's ERR_PTR, check it properly, bestie, don't just start dereferencing, I'm begging 😭

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🔥 SEE ALSO 🔥

• the kernel file ./kernel/time/namespace.c — where the magic lives, go read it iykyk 👑
• copy_time_ns(9) — her sibling, also iconic, also worth a read 🧚

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reminder bestie: every flag, path, and signature above is exactly what the original said — I would never mess with the facts, only the vibe check 💅

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and that's the page! brought to you by ./kernel/time, dated October 2026, and yeah — she's still called clone_time_ns(9). mwah 💖🎀🌸