vmballoon_change(9)

🎈 vmballoon_change(9) — bestie edition

okay so welcome to the Kernel API Manual entry for vmballoon_change(9) — yeah we're doing kernel-adjacent function docs now, and honestly? it's giving main character energy 💅

---

✨ NAME ✨

vmballoon_change — retrieve the required balloon change 🎈

like, it goes and fetches the change the balloon actually needs. that's the whole vibe.

---

🌸 SYNOPSIS 🌸

int64_t vmballoon_change (struct vmballoon *b );

---

🎀 ARGUMENTS 🎀

• b — pointer for the balloon. that's it, that's the whole argument. it's a pointer, it points at the balloon, slay 🫶

---

💖 RETURN 💖

the required change for the balloon size, returned as an int64_t.

• a positive number means inflation (balloon getting bigger, no cap)
• a negative number means deflation (balloon getting smaller 😭)

so like, read the sign, bestie — the sign IS the information 🔥

---

🦋 SEE ALSO 🦋

the whole friend group shows up here, and yes you're gonna meet all of them:

• Kernel file ./drivers/misc/vmw_balloon.c
• enum vmballoon_cmd_type(9)
• struct vmballoon_batch_entry(9)
• vmballoon_send_guest_id(9)
• vmballoon_page_order(9)
• vmballoon_page_in_frames(9)
• vmballoon_mark_page_offline(9)
• vmballoon_mark_page_online(9)
• vmballoon_send_get_target(9)
• vmballoon_alloc_page_list(9)
• vmballoon_handle_one_result(9)
• vmballoon_status_page(9)
• vmballoon_lock_op(9)
• vmballoon_add_page(9)
• vmballoon_lock(9)
• vmballoon_release_page_list(9)
• vmballoon_enqueue_page_list(9)
• vmballoon_dequeue_page_list(9)
• vmballoon_split_refused_pages(9)
• vmballoon_inflate(9)
• vmballoon_deflate(9)
• vmballoon_deinit_batching(9)
• vmballoon_init_batching(9)
• vmballoon_vmci_init(9)
• vmballoon_pop(9)
• vmballoon_work(9)
• vmballoon_shrinker_scan(9)
• vmballoon_shrinker_count(9)
• vmballoon_debug_show(9)
• vmballoon_migratepage(9)

---

ngl the whole balloon family is iconic and you should absolutely go read the rest of them. iykyk 🧚

that's the page, bestie — go inflate something responsibly ✨🎈

— signed off with love from ./drivers/misc, dated October 2026, and yes the page itself is literally called vmballoon_change(9) 💜