pcpu_chunk_depopulated(9)

💅 pcpu_chunk_depopulated(9) 💅

okay bestie, welcome to the pcpu_chunk_depopulated(9) page from the Kernel API Manual — this one is short, sweet, and literally all about cleaning up after pages get depopulated. no cap, it’s giving “bookkeeping main character energy” 🎀

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🌸 NAME 🌸

pcpu_chunk_depopulated — post-depopulation bookkeeping ✨

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🦋 SYNOPSIS 🦋

void pcpu_chunk_depopulated (struct pcpu_chunk *chunk , int page_start ,
       int page_end );

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🍓 ARGUMENTS 🍓

• chunk — the pcpu_chunk which got depopulated, like it just lost its population status 💀
• page_start — the start page, periodt
• page_end — the end page, no cap

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💜 DESCRIPTION 💜

Pages in [page_start,page_end) have been depopulated from chunk. Update the bookkeeping information accordingly, bestie — keep those records cute and correct 💖

Must be called after each successful depopulation. like, literally every single time, no skipping 🙈

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✨ SEE ALSO ✨

Kernel file ./mm/percpu.c is the main character here, and these linked manpages are its entourage 🫶

• 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_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_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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that’s the whole vibe check, bestie 🌈 source/version is ./mm, dated October 2026 — slay, bye 💅💖