pcpu_mem_free(9)

💖 NAME 💖

okay so welcome to the Kernel API Manual, bestie — the star of this page is pcpu_mem_free - free memory. ✨ literally its name, its brand, its main character energy.

📜 SYNOPSIS 📜

void pcpu_mem_free (void *ptr );

🎀 ARGUMENTS 🎀

• ptr — the memory to free. that's the whole argument, bestie 💅

🌸 DESCRIPTION 🌸

okay so pcpu_mem_free frees ptr. The lore you cannot skip: ptr should have been allocated using pcpu_mem_zalloc. periodt — that's the allocation match-up, no cap. 💖

👑 SEE ALSO 👑

Kernel file ./mm/percpu.c — and here are all the related besties, fr fr:

• pcpu_addr_in_chunk(9)
• pcpu_check_block_hint(9)
• pcpu_next_md_free_region(9)
• pcpu_next_fit_region(9)
• pcpu_mem_zalloc(9)
• pcpu_chunk_relocate(9)
• pcpu_block_update(9)
• pcpu_chunk_refresh_hint(9)
• pcpu_block_refresh_hint(9)
• pcpu_block_update_hint_alloc(9)
• pcpu_block_update_hint_free(9)
• pcpu_is_populated(9)
• pcpu_find_block_fit(9)
• pcpu_alloc_area(9)
• pcpu_free_area(9)
• pcpu_alloc_first_chunk(9)
• pcpu_chunk_populated(9)
• pcpu_chunk_depopulated(9)
• pcpu_chunk_addr_search(9)
• pcpu_alloc(9)
• pcpu_balance_free(9)
• pcpu_balance_populated(9)
• pcpu_reclaim_populated(9)
• pcpu_balance_workfn(9)
• free_percpu(9)
• is_kernel_percpu_address(9)
• per_cpu_ptr_to_phys(9)
• pcpu_alloc_alloc_info(9)
• pcpu_free_alloc_info(9)
• pcpu_dump_alloc_info(9)
• pcpu_setup_first_chunk(9)
• pcpu_build_alloc_info(9)
• pcpu_embed_first_chunk(9)
• pcpu_page_first_chunk(9)

💅 mwah, that's the page 💅 — source/version ./mm, dated October 2026, and it's literally pcpu_mem_free(9). bye bestie 🫶