folio_detach_private(9)

💅 folio_detach_private(9) — Kernel API Manual, bestie edition 💅

🌸 NAME 🌸

folio_detach_private — Detach private data from a folio. That’s the whole vibe.

✨ SYNOPSIS ✨

void * folio_detach_private (struct folio *folio );

🎀 ARGUMENTS 🎀

• folio — the folio you’re detaching data from, bestie. That’s literally the target.

💅 DESCRIPTION 💅

Okay so this one removes the data that was previously attached to the folio, and it decrements the refcount on the page. Lowkey important, highkey tidy. ✨

🫶 RETURN 🫶

It returns the data that was attached to the folio. That’s the prize, fr fr. 💖

🔥 SEE ALSO 🔥

These besties live near the kernel file ./include/linux/pagemap.h:

• 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)
• 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_get_page(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)

Cute sign-off time: source/version is ./include/linux, dated October 2026, and this iconic page is folio_detach_private(9). That’s a wrap, bestie. 🎀💖