gen_pool_add(9)

🌸 gen_pool_add(9) 🌸

okay bestie, welcome to the Kernel API Manual — yes we're reading kernel docs together, we're literally that girl now 💅✨

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✨ NAME ✨

gen_pool_add — add a new chunk of special memory to the pool 🎀

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🦋 SYNOPSIS 🦋

int gen_pool_add (struct gen_pool *pool , unsigned long addr , size_t
size , int nid );

like, that's the whole signature, no cap 🔥

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💖 ARGUMENTS 💖

• pool — the pool you're adding your new memory chunk to 🫶
• addr — the starting address of the memory chunk you're adding to the pool, literally where it begins
• size — how big the memory chunk is, in bytes (yes, bytes, we're measuring fr fr)
• nid — the node id of the node where the chunk structure and the bitmap should be allocated on, or -1 😌

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🌈 DESCRIPTION 🌈

okay so the whole vibe here: you're adding a brand-new chunk of special memory to the pool you specified. that's it, that's the function ✨

it returns 0 on success, or a negative errno (-ve errno) on failure — so if you see a negative number, bestie, something went wrong 😭

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🧚 SEE ALSO 🧚

• Kernel file ./include/linux/genalloc.h
• genpool_algo_t(9)
• gen_pool_alloc(9)

go read those next, iykyk 👑

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and that's a wrap, bestie!! this page came to you courtesy of ./include/linux, dated October 2026, and yes the page name is still gen_pool_add(9) — slay, goodbye, mwah 💋🎀🦋