find_get_page(9)

💖 find_get_page(9) — find and get a page reference 💖

okay so this one is from the Kernel API Manual, and it’s giving “page cache bestie” energy. no cap, let’s get into it ✨

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🌸 NAME 🌸

find_get_page — find and get a page reference 🫶

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✨ SYNOPSIS ✨

the whole vibe is literally:

struct page * find_get_page (struct address_space *mapping , pgoff_t
offset );

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🫶 ARGUMENTS 🫶

• mapping — the address_space to search 💅
• offset — the page index 🌸

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🦋 DESCRIPTION 🦋

It looks up the page cache slot at mapping & offset. if there’s a page cache page hanging out there, it gets returned with an increased refcount — like it just got a little popularity boost, but for kernel reasons 😭

Otherwise, NULL is returned. that’s the whole story, bestie. periodt 💀

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👑 SEE ALSO 👑

Kernel file ./include/linux/pagemap.h is over here serving the whole crew ✨

• filemap_set_wb_err(9)
• filemap_check_wb_err(9)
• filemap_sample_wb_err(9)
• file_sample_sb_err(9)
• mapping_set_error(9)
• mapping_set_large_folios(9)
• mapping_align_index(9)
• mapping_pmd_folio_support(9)
• folio_flush_mapping(9)
• folio_inode(9)
• folio_attach_private(9)
• folio_change_private(9)
• folio_detach_private(9)
• fgf_t(9)
• fgf_set_order(9)
• write_begin_get_folio(9)
• filemap_get_folio(9)
• filemap_lock_folio(9)
• filemap_grab_folio(9)
• find_lock_page(9)
• find_or_create_page(9)
• grab_cache_page_nowait(9)
• folio_next_index(9)
• folio_next_pos(9)
• folio_file_page(9)
• folio_contains(9)
• page_pgoff(9)
• folio_pos(9)
• linear_page_delta(9)
• linear_page_index(9)
• linear_anon_page_index(9)
• folio_trylock(9)
• folio_lock(9)
• lock_page(9)
• folio_lock_killable(9)
• filemap_range_needs_writeback(9)
• struct readahead_control(9)
• page_cache_sync_readahead(9)
• page_cache_async_readahead(9)
• readahead_folio(9)
• readahead_pos(9)
• readahead_length(9)
• readahead_index(9)
• readahead_count(9)
• readahead_batch_length(9)
• folio_mkwrite_check_truncate(9)
• i_blocks_per_folio(9)

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byeee bestie — source: ./include/linux; date: October 2026; page: find_get_page(9) — mwah 💅🎀