pcpu_chunk_relocate(9)

💖 pcpu_chunk_relocate(9) — Kernel API Manual 💖

🌸 NAME 🌸

pcpu_chunk_relocate — put chunk in the appropriate chunk slot ✨

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✨ SYNOPSIS ✨

void pcpu_chunk_relocate (struct pcpu_chunk *chunk , int oslot );

It's giving void, bestie — no return value, just relocation business 💅

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🫶 ARGUMENTS 🫶

• chunk — the chunk of interest, aka the main character of this little operation 👑
• oslot — the previous slot it was on 🎀

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💅 DESCRIPTION 💅

Okay so this function gets called after an allocation or a free changed chunk. The new slot is determined according to the changed state, and then chunk is moved to that slot. Literally that's the whole glow-up 🦋

Important vibe check: the reserved chunk is never put on chunk slots. Not today, not tomorrow, not ever — periodt 💀

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🔒 CONTEXT 🔒

Context: pcpu_lock 🔒

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🌈 SEE ALSO 🌈

Kernel file: ./mm/percpu.c 🌸

• 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_mem_free(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)

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xoxo bestie 💖 — sourced from ./mm, dated October 2026, and filed under pcpu_chunk_relocate(9) in the Kernel API Manual. slay and goodbye 👑✨