mempool_free(9)

mempool_free(9) 🫶

okay so this is mempool_free(9), straight from the Kernel API Manual — and it’s literally the “give the element back” bestie of the mempool family. ✨

🌸 NAME 🌸

mempool_free — return an element to the pool. 💅

✨ SYNOPSIS ✨

void mempool_free (void *element , struct mempool *pool );

🎀 ARGUMENTS 🎀

• element — the element to return, bestie. 🫶
• pool — pointer to the memory pool. 👑

💖 DESCRIPTION 💖

So here’s the tea: mempool_free returns element to pool if the pool needs replenishing. If it doesn’t, it frees the element using the free_fn callback in pool. no cap. 🔥

And the sleep vibe check: this function only sleeps if the free_fn callback sleeps. 😴💤

🦋 SEE ALSO 🦋

Kernel file ./mm/mempool.c, plus all these iconic references:

• mempool_exit(9)
• mempool_destroy(9)
• mempool_init(9)
• mempool_create_node(9)
• mempool_resize(9)
• mempool_alloc_bulk(9)
• mempool_alloc(9)
• mempool_alloc_preallocated(9)
• mempool_free_bulk(9)

mwah 💋 cute little sign-off: this page’s source/version is ./mm, dated October 2026 — mempool_free(9) out! 🎀