net_mp_netme...ace_in_cache(9)

💅 net_mp_netme...ace_in_cache(9) 💅

okay bestie, welcome to the Kernel API Manual — today's main character is net_mp_netmem_place_in_cache, and honestly? she's giving “small function, very specific job.” let's get into it 🎀

🌸 NAME 🌸

net_mp_netmem_place_in_cache — give a netmem to a page pool

✨ SYNOPSIS ✨

void net_mp_netmem_place_in_cache (struct page_pool *pool , netmem_ref
netmem );

🎀 ARGUMENTS 🎀

• pool — the page pool to place the netmem into. that's the destination, bestie 🫶
• netmem — netmem to give. hand it over 💅

🔥 DESCRIPTION 🔥

okay so the vibe here is: push an accounted netmem into the page pool's allocation cache. simple. iconic. very “put the thing where it belongs” energy ✨

⚠️ but listen — the caller must ensure that there is space in the cache. that's on you, not on the function. no cap.

🚨 also important: it should only be called off the mp_ops->alloc_netmems path. like, that's the rule, and we respect it 💀

👀 SEE ALSO 👀

Kernel file ./include/net/page_pool/memory_provider.h

that's the whole page, fr fr. source/version: ./include/net/page_pool · date: October 2026 · mwah 💖