__mpage_writepages(9)

🌸 __mpage_writepages(9) — Kernel API Manual 🌸

okay bestie, welcome to the Kernel API Manual corner of the group chat 🫶

✨ NAME ✨

__mpage_writepages — walk the list of dirty pages of the given address space & writepage() all of them 💅 periodt.

🎀 SYNOPSIS 🎀

int __mpage_writepages (struct address_space *mapping , struct
       writeback_control *wbc , get_block_t get_block , int
       (*write_folio)(struct folio *folio, struct writeback_control *wbc) );

🦋 ARGUMENTS 🦋

• mapping — the address space structure to write, no cap.
• wbc — subtract the number of written pages from *wbc->nr_to_write, mmkay? 💖
• get_block — the filesystem's block mapper function, iconic.
• write_folio — handler to call for each folio before calling mpage_write_folio 🧚

💖 DESCRIPTION 💖

This is a library function, and it implements the writepages address_space_operation ✨. It calls the write_folio handler for each folio. If the handler returns a value > 0, it calls mpage_write_folio to do the folio writeback 🔥.

🌈 SEE ALSO 🌈

Kernel file ./fs/mpage.c and mpage_readahead(9) — go read bestie, iykyk 👑

Source/version ./fs and date October 2026, signing off with a cute lil 💋 — byeee 🎀