rtnl_nets_add(9)

💅 rtnl_nets_add(9) — a Kernel API Manual moment

okay bestie, so this is a page from the Kernel API Manual (section 9, kernel-space vibes only 🧚) and it's all about rtnl_nets_add. Sit down, hydrate, let's go 💖

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✨ NAME ✨

rtnl_nets_add — add a netns to be locked before ->newlink(). that's the whole assignment, no cap 🎀

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🌸 SYNOPSIS 🌸

void rtnl_nets_add (struct rtnl_nets *rtnl_nets , struct net *net );

notice how it returns void? yeah. it does the thing and dips, iconic behavior honestly 💅

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🦋 ARGUMENTS 🦋

• rtnl_nets — the rtnl_nets pointer that got passed to ->get_peer_net. like, that one. 🫶
• net — a netns pointer, and bestie listen: it comes in with an extra refcnt already held. don't touch the refcount, it's handled. 😭

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💀 DESCRIPTION 💀

so the extra refcnt we were just talking about? yeah, it gets released later, over in rtnl_nets_destroy. that's it, that's the function. balanced reference counting, main character energy ⭐🔥

ngl this is one of those tiny helpers where the whole personality is "I hold a ref so the destroy path doesn't have to panic." respect. 👑

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🌈 SEE ALSO 🌈

• Kernel file ./net/core/rtnetlink.c
• rtnl_unregister(9)
• rtnl_unregister_all(9)
• __rtnl_register_many(9)
• rtnl_link_register(9)
• rtnl_link_unregister(9)
• rtnl_af_register(9)
• rtnl_af_unregister(9)
• rtnl_get_net_ns_capable(9)
• ndo_dflt_fdb_dump(9)

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and that's the whole page, bestie — no more lore 🍓

signed, sealed, delivered from ./net/core — the Kernel API Manual, dated October 2026, page rtnl_nets_add(9) 🎀✨ bye ily 💜