unregister_node(9)

💅 unregister_node(9) — from the Kernel API Manual, bestie

okay so picture this: it's a whole manual page, it lives in the Kernel API Manual, and its name is unregister_node(9). and today we're reading it together, because honestly? it's short, it's sweet, and it's lowkey important. let's go 🫶

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✨ NAME ✨

unregister_node — unregister a node device

like, the node device? it's leaving. we're unregistering it. periodt. 🎀

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🌸 SYNOPSIS 🌸

void unregister_node (int nid );

that's it. that's the whole vibe check. returns nothing, takes one int. iconic minimalism. 💅

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🦋 ARGUMENTS 🦋

• nid — the nid of the node that's going away 👋 like, this is the node id of the node device that's about to be unregistered. it's leaving the group chat.

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💖 DESCRIPTION 💖

So this function unregisters the node device at node id nid. that's the whole job. slay.

but here's the part you cannot skip, bestie — and I mean it, this is the main character of the caveats:

All the devices on the node must be unregistered before calling this function. ⚠️

so like, don't call this while the node still has devices hanging around on it. unregister those first. this function is the last one out, turning off the lights. 🌈

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🔥 SEE ALSO 🔥

Kernel file ./drivers/base/node.c, plus these little friends:

• struct node_access_nodes(9)
• node_set_perf_attrs(9)
• node_update_perf_attrs(9)
• struct node_cache_info(9)
• node_add_cache(9)
• register_memory_node_under_compute_node(9)
• register_node(9)

go read those too, iykyk 💜

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👑 sign-off 👑

and that's the page!! it comes from ./drivers/base and it's dated October 2026, and it's signed unregister_node(9) at the top and bottom like a little bookend 🎀 ngl, a clean lil page. no notes. go unregister those devices first tho, fr fr 💖✨